/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-178dd20 [2021-01-07 04:55:41,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 04:55:41,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 04:55:41,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 04:55:41,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 04:55:41,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 04:55:41,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 04:55:41,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 04:55:41,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 04:55:41,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 04:55:41,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 04:55:41,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 04:55:41,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 04:55:41,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 04:55:41,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 04:55:41,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 04:55:41,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 04:55:41,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 04:55:41,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 04:55:41,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 04:55:41,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 04:55:41,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 04:55:41,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 04:55:41,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 04:55:41,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-07 04:55:41,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-07 04:55:41,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-07 04:55:41,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-07 04:55:41,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-07 04:55:41,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-07 04:55:41,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 04:55:41,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 04:55:41,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 04:55:41,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 04:55:41,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 04:55:41,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 04:55:41,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 04:55:41,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 04:55:41,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 04:55:41,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 04:55:41,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 04:55:41,817 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-64bit-Automizer_Default.epf [2021-01-07 04:55:41,863 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 04:55:41,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 04:55:41,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 04:55:41,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 04:55:41,870 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 04:55:41,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 04:55:41,872 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 04:55:41,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 04:55:41,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 04:55:41,872 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 04:55:41,873 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 04:55:41,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 04:55:41,875 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 04:55:41,875 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 04:55:41,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 04:55:41,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 04:55:41,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 04:55:41,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 04:55:41,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 04:55:41,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 04:55:41,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 04:55:41,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 04:55:41,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 04:55:41,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 04:55:42,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 04:55:42,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 04:55:42,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 04:55:42,359 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 04:55:42,360 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 04:55:42,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/splice-1.i [2021-01-07 04:55:42,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/121a0e9d9/98c6db3b2b4b4878909630de976891d3/FLAGe85681370 [2021-01-07 04:55:43,221 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 04:55:43,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/list-properties/splice-1.i [2021-01-07 04:55:43,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/121a0e9d9/98c6db3b2b4b4878909630de976891d3/FLAGe85681370 [2021-01-07 04:55:43,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/121a0e9d9/98c6db3b2b4b4878909630de976891d3 [2021-01-07 04:55:43,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 04:55:43,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 04:55:43,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 04:55:43,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 04:55:43,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 04:55:43,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 04:55:43" (1/1) ... [2021-01-07 04:55:43,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b36051a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:43, skipping insertion in model container [2021-01-07 04:55:43,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 04:55:43" (1/1) ... [2021-01-07 04:55:43,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 04:55:43,611 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,] [2021-01-07 04:55:43,943 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] [2021-01-07 04:55:43,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 04:55:43,965 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,] [2021-01-07 04:55:44,029 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] [2021-01-07 04:55:44,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 04:55:44,090 INFO L208 MainTranslator]: Completed translation [2021-01-07 04:55:44,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:44 WrapperNode [2021-01-07 04:55:44,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 04:55:44,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 04:55:44,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 04:55:44,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 04:55:44,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:44" (1/1) ... [2021-01-07 04:55:44,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:44" (1/1) ... [2021-01-07 04:55:44,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 04:55:44,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 04:55:44,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 04:55:44,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 04:55:44,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:44" (1/1) ... [2021-01-07 04:55:44,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:44" (1/1) ... [2021-01-07 04:55:44,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:44" (1/1) ... [2021-01-07 04:55:44,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:44" (1/1) ... [2021-01-07 04:55:44,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:44" (1/1) ... [2021-01-07 04:55:44,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:44" (1/1) ... [2021-01-07 04:55:44,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:44" (1/1) ... [2021-01-07 04:55:44,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 04:55:44,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 04:55:44,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 04:55:44,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 04:55:44,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:44" (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 04:55:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-07 04:55:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-07 04:55:44,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-07 04:55:44,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-07 04:55:44,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 04:55:44,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-07 04:55:44,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 04:55:44,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 04:55:44,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 04:55:44,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 04:55:44,907 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-01-07 04:55:44,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:55:44 BoogieIcfgContainer [2021-01-07 04:55:44,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 04:55:44,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 04:55:44,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 04:55:44,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 04:55:44,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 04:55:43" (1/3) ... [2021-01-07 04:55:44,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d14a871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 04:55:44, skipping insertion in model container [2021-01-07 04:55:44,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:55:44" (2/3) ... [2021-01-07 04:55:44,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d14a871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 04:55:44, skipping insertion in model container [2021-01-07 04:55:44,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:55:44" (3/3) ... [2021-01-07 04:55:44,922 INFO L111 eAbstractionObserver]: Analyzing ICFG splice-1.i [2021-01-07 04:55:44,930 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 04:55:44,936 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2021-01-07 04:55:44,959 INFO L253 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-01-07 04:55:44,985 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 04:55:44,985 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 04:55:44,985 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 04:55:44,985 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 04:55:44,985 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 04:55:44,986 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 04:55:44,986 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 04:55:44,986 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 04:55:45,004 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2021-01-07 04:55:45,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-07 04:55:45,012 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:45,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-07 04:55:45,013 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]=== [2021-01-07 04:55:45,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:45,021 INFO L82 PathProgramCache]: Analyzing trace with hash 889600296, now seen corresponding path program 1 times [2021-01-07 04:55:45,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:45,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338314297] [2021-01-07 04:55:45,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:55:45,199 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 04:55:45,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338314297] [2021-01-07 04:55:45,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:55:45,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 04:55:45,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505886697] [2021-01-07 04:55:45,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 04:55:45,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:55:45,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 04:55:45,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 04:55:45,227 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2021-01-07 04:55:45,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:55:45,248 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2021-01-07 04:55:45,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 04:55:45,250 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2021-01-07 04:55:45,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:55:45,261 INFO L225 Difference]: With dead ends: 77 [2021-01-07 04:55:45,261 INFO L226 Difference]: Without dead ends: 73 [2021-01-07 04:55:45,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 04:55:45,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-01-07 04:55:45,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-01-07 04:55:45,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2021-01-07 04:55:45,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2021-01-07 04:55:45,304 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 6 [2021-01-07 04:55:45,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:55:45,304 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2021-01-07 04:55:45,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 04:55:45,304 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2021-01-07 04:55:45,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 04:55:45,305 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:45,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:55:45,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 04:55:45,306 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]=== [2021-01-07 04:55:45,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:45,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1807769742, now seen corresponding path program 1 times [2021-01-07 04:55:45,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:45,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762304157] [2021-01-07 04:55:45,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:55:45,382 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 04:55:45,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762304157] [2021-01-07 04:55:45,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:55:45,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:55:45,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690581166] [2021-01-07 04:55:45,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:55:45,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:55:45,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:55:45,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:55:45,387 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand 4 states. [2021-01-07 04:55:45,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:55:45,653 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2021-01-07 04:55:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:55:45,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-07 04:55:45,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:55:45,656 INFO L225 Difference]: With dead ends: 80 [2021-01-07 04:55:45,656 INFO L226 Difference]: Without dead ends: 80 [2021-01-07 04:55:45,657 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 04:55:45,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-01-07 04:55:45,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2021-01-07 04:55:45,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-01-07 04:55:45,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2021-01-07 04:55:45,668 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 87 transitions. Word has length 7 [2021-01-07 04:55:45,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:55:45,669 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 87 transitions. [2021-01-07 04:55:45,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:55:45,669 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 87 transitions. [2021-01-07 04:55:45,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 04:55:45,670 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:45,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:55:45,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 04:55:45,670 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]=== [2021-01-07 04:55:45,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:45,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1807769743, now seen corresponding path program 1 times [2021-01-07 04:55:45,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:45,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016124755] [2021-01-07 04:55:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:55:45,845 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 04:55:45,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016124755] [2021-01-07 04:55:45,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:55:45,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:55:45,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460549402] [2021-01-07 04:55:45,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:55:45,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:55:45,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:55:45,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:55:45,853 INFO L87 Difference]: Start difference. First operand 74 states and 87 transitions. Second operand 4 states. [2021-01-07 04:55:46,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:55:46,157 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions. [2021-01-07 04:55:46,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:55:46,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-07 04:55:46,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:55:46,160 INFO L225 Difference]: With dead ends: 88 [2021-01-07 04:55:46,160 INFO L226 Difference]: Without dead ends: 88 [2021-01-07 04:55:46,161 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 04:55:46,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-01-07 04:55:46,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2021-01-07 04:55:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2021-01-07 04:55:46,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2021-01-07 04:55:46,169 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 7 [2021-01-07 04:55:46,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:55:46,169 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2021-01-07 04:55:46,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:55:46,169 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2021-01-07 04:55:46,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-07 04:55:46,170 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:55:46,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:55:46,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-07 04:55:46,171 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]=== [2021-01-07 04:55:46,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:55:46,171 INFO L82 PathProgramCache]: Analyzing trace with hash 673485446, now seen corresponding path program 1 times [2021-01-07 04:55:46,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:55:46,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727054096] [2021-01-07 04:55:46,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:55:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 04:55:46,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 04:55:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 04:55:46,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 04:55:46,254 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-07 04:55:46,254 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-07 04:55:46,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-07 04:55:46,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 04:55:46 BoogieIcfgContainer [2021-01-07 04:55:46,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-07 04:55:46,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-07 04:55:46,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-07 04:55:46,281 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-07 04:55:46,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:55:44" (3/4) ... [2021-01-07 04:55:46,284 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-07 04:55:46,328 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/list-properties/splice-1.i-witness.graphml [2021-01-07 04:55:46,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-07 04:55:46,331 INFO L168 Benchmark]: Toolchain (without parser) took 2798.61 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 115.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 11.4 MB. Max. memory is 8.0 GB. [2021-01-07 04:55:46,332 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 124.8 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 04:55:46,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.46 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 102.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-01-07 04:55:46,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.11 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 133.4 MB in the end (delta: -30.5 MB). Peak memory consumption was 2.7 MB. Max. memory is 8.0 GB. [2021-01-07 04:55:46,334 INFO L168 Benchmark]: Boogie Preprocessor took 38.35 ms. Allocated memory is still 151.0 MB. Free memory was 133.4 MB in the beginning and 131.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 04:55:46,335 INFO L168 Benchmark]: RCFGBuilder took 675.49 ms. Allocated memory is still 151.0 MB. Free memory was 131.9 MB in the beginning and 103.0 MB in the end (delta: 28.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2021-01-07 04:55:46,336 INFO L168 Benchmark]: TraceAbstraction took 1366.39 ms. Allocated memory is still 151.0 MB. Free memory was 103.0 MB in the beginning and 117.4 MB in the end (delta: -14.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 04:55:46,337 INFO L168 Benchmark]: Witness Printer took 48.03 ms. Allocated memory is still 151.0 MB. Free memory was 117.4 MB in the beginning and 115.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-07 04:55:46,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 124.8 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 557.46 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 102.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 104.11 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 133.4 MB in the end (delta: -30.5 MB). Peak memory consumption was 2.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.35 ms. Allocated memory is still 151.0 MB. Free memory was 133.4 MB in the beginning and 131.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 675.49 ms. Allocated memory is still 151.0 MB. Free memory was 131.9 MB in the beginning and 103.0 MB in the end (delta: 28.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1366.39 ms. Allocated memory is still 151.0 MB. Free memory was 103.0 MB in the beginning and 117.4 MB in the end (delta: -14.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 48.03 ms. Allocated memory is still 151.0 MB. Free memory was 117.4 MB in the beginning and 115.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 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: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, 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, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 0.0s 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...