/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/heap-manipulation/tree-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:24:21,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:24:21,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:24:21,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 05:24:21,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 05:24:21,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 05:24:21,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 05:24:21,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 05:24:21,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 05:24:21,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 05:24:21,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 05:24:21,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 05:24:21,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:24:21,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:24:21,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:24:21,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:24:21,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:24:21,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:24:21,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:24:21,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:24:21,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:24:21,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:24:21,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:24:21,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:24:21,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-07 05:24:21,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-07 05:24:21,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-07 05:24:21,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-07 05:24:21,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-07 05:24:21,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-07 05:24:21,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 05:24:21,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 05:24:21,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 05:24:21,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 05:24:21,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 05:24:21,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 05:24:21,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 05:24:21,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 05:24:21,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:24:21,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:24:21,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:24:21,596 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-01-07 05:24:21,656 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:24:21,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:24:21,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:24:21,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:24:21,662 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:24:21,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:24:21,664 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:24:21,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:24:21,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:24:21,664 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:24:21,666 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:24:21,666 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:24:21,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:24:21,667 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:24:21,667 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:24:21,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:24:21,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:24:21,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:24:21,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:24:21,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:24:21,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:24:21,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:24:21,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:24:21,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:24:21,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:24:22,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:24:22,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:24:22,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:24:22,235 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:24:22,236 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:24:22,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-manipulation/tree-1.i [2021-01-07 05:24:22,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/036a7c212/a44858f4bf964b95b2efdc37a75fde8f/FLAGdf1bf5678 [2021-01-07 05:24:23,038 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:24:23,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/heap-manipulation/tree-1.i [2021-01-07 05:24:23,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/036a7c212/a44858f4bf964b95b2efdc37a75fde8f/FLAGdf1bf5678 [2021-01-07 05:24:23,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/036a7c212/a44858f4bf964b95b2efdc37a75fde8f [2021-01-07 05:24:23,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:24:23,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:24:23,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:24:23,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:24:23,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:24:23,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:24:23" (1/1) ... [2021-01-07 05:24:23,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3622054e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:24:23, skipping insertion in model container [2021-01-07 05:24:23,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:24:23" (1/1) ... [2021-01-07 05:24:23,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:24:23,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-07 05:24:23,777 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/heap-manipulation/tree-1.i[22626,22639] left hand side expression in assignment: lhs: VariableLHS[~node,] left hand side expression in assignment: lhs: VariableLHS[~node~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],StructAccessExpression[IdentifierExpression[~node~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~nodelast~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~nodelast~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~value~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~nodelast~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],StructAccessExpression[IdentifierExpression[~node~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem14,],base],StructAccessExpression[IdentifierExpression[#t~mem14,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem15,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem15,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem16,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem16,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem17,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem17,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~node~0,] left hand side expression in assignment: lhs: VariableLHS[~node,] left hand side expression in assignment: lhs: VariableLHS[~last~0,] left hand side expression in assignment: lhs: VariableLHS[~node,] [2021-01-07 05:24:23,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:24:23,826 INFO L203 MainTranslator]: Completed pre-run [2021-01-07 05:24:23,867 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/heap-manipulation/tree-1.i[22626,22639] left hand side expression in assignment: lhs: VariableLHS[~node,] left hand side expression in assignment: lhs: VariableLHS[~node~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],StructAccessExpression[IdentifierExpression[~node~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~nodelast~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~nodelast~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~value~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~nodelast~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~node~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~node~0,],base],StructAccessExpression[IdentifierExpression[~node~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem14,],base],StructAccessExpression[IdentifierExpression[#t~mem14,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem15,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem15,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem16,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem16,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem17,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem17,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~node~0,] left hand side expression in assignment: lhs: VariableLHS[~node,] left hand side expression in assignment: lhs: VariableLHS[~last~0,] left hand side expression in assignment: lhs: VariableLHS[~node,] [2021-01-07 05:24:23,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:24:23,956 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:24:23,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:24:23 WrapperNode [2021-01-07 05:24:23,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:24:23,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:24:23,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:24:23,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:24:23,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:24:23" (1/1) ... [2021-01-07 05:24:23,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:24:23" (1/1) ... [2021-01-07 05:24:24,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:24:24,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:24:24,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:24:24,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:24:24,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:24:23" (1/1) ... [2021-01-07 05:24:24,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:24:23" (1/1) ... [2021-01-07 05:24:24,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:24:23" (1/1) ... [2021-01-07 05:24:24,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:24:23" (1/1) ... [2021-01-07 05:24:24,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:24:23" (1/1) ... [2021-01-07 05:24:24,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:24:23" (1/1) ... [2021-01-07 05:24:24,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:24:23" (1/1) ... [2021-01-07 05:24:24,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:24:24,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:24:24,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:24:24,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:24:24,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:24:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:24:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-07 05:24:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-07 05:24:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-07 05:24:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-07 05:24:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 05:24:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-07 05:24:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-07 05:24:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 05:24:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:24:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:24:25,260 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:24:25,260 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2021-01-07 05:24:25,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:24:25 BoogieIcfgContainer [2021-01-07 05:24:25,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:24:25,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:24:25,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:24:25,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:24:25,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:24:23" (1/3) ... [2021-01-07 05:24:25,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259a15d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:24:25, skipping insertion in model container [2021-01-07 05:24:25,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:24:23" (2/3) ... [2021-01-07 05:24:25,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259a15d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:24:25, skipping insertion in model container [2021-01-07 05:24:25,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:24:25" (3/3) ... [2021-01-07 05:24:25,276 INFO L111 eAbstractionObserver]: Analyzing ICFG tree-1.i [2021-01-07 05:24:25,285 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:24:25,292 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 67 error locations. [2021-01-07 05:24:25,313 INFO L253 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2021-01-07 05:24:25,352 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:24:25,352 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:24:25,352 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:24:25,352 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:24:25,353 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:24:25,353 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:24:25,353 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:24:25,353 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:24:25,392 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2021-01-07 05:24:25,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-01-07 05:24:25,402 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:24:25,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-01-07 05:24:25,405 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:24:25,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:24:25,414 INFO L82 PathProgramCache]: Analyzing trace with hash 926918, now seen corresponding path program 1 times [2021-01-07 05:24:25,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:24:25,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251189578] [2021-01-07 05:24:25,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:24:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:24:25,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:24:25,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251189578] [2021-01-07 05:24:25,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:24:25,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:24:25,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116752326] [2021-01-07 05:24:25,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 05:24:25,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:24:25,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 05:24:25,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 05:24:25,673 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2021-01-07 05:24:25,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:24:25,717 INFO L93 Difference]: Finished difference Result 147 states and 157 transitions. [2021-01-07 05:24:25,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 05:24:25,719 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2021-01-07 05:24:25,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:24:25,741 INFO L225 Difference]: With dead ends: 147 [2021-01-07 05:24:25,742 INFO L226 Difference]: Without dead ends: 145 [2021-01-07 05:24:25,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 05:24:25,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-01-07 05:24:25,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2021-01-07 05:24:25,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2021-01-07 05:24:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 155 transitions. [2021-01-07 05:24:25,799 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 155 transitions. Word has length 4 [2021-01-07 05:24:25,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:24:25,800 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 155 transitions. [2021-01-07 05:24:25,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 05:24:25,800 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions. [2021-01-07 05:24:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-01-07 05:24:25,801 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:24:25,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-01-07 05:24:25,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:24:25,802 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr50REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr57REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-01-07 05:24:25,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:24:25,803 INFO L82 PathProgramCache]: Analyzing trace with hash 28695819, now seen corresponding path program 1 times [2021-01-07 05:24:25,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:24:25,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32111929] [2021-01-07 05:24:25,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:24:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 05:24:25,831 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 05:24:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 05:24:25,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 05:24:25,872 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-07 05:24:25,872 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-07 05:24:25,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 05:24:25,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 05:24:25 BoogieIcfgContainer [2021-01-07 05:24:25,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-07 05:24:25,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-07 05:24:25,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-07 05:24:25,899 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-07 05:24:25,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:24:25" (3/4) ... [2021-01-07 05:24:25,902 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-07 05:24:25,942 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/heap-manipulation/tree-1.i-witness.graphml [2021-01-07 05:24:25,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-07 05:24:25,945 INFO L168 Benchmark]: Toolchain (without parser) took 2627.42 ms. Allocated memory is still 157.3 MB. Free memory was 131.5 MB in the beginning and 70.8 MB in the end (delta: 60.8 MB). Peak memory consumption was 60.6 MB. Max. memory is 8.0 GB. [2021-01-07 05:24:25,946 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 157.3 MB. Free memory is still 131.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 05:24:25,947 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.69 ms. Allocated memory is still 157.3 MB. Free memory was 131.4 MB in the beginning and 108.8 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:24:25,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.86 ms. Allocated memory is still 157.3 MB. Free memory was 108.6 MB in the beginning and 140.0 MB in the end (delta: -31.4 MB). Peak memory consumption was 5.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:24:25,949 INFO L168 Benchmark]: Boogie Preprocessor took 66.38 ms. Allocated memory is still 157.3 MB. Free memory was 140.0 MB in the beginning and 137.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:24:25,950 INFO L168 Benchmark]: RCFGBuilder took 1140.70 ms. Allocated memory is still 157.3 MB. Free memory was 137.9 MB in the beginning and 94.4 MB in the end (delta: 43.5 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:24:25,951 INFO L168 Benchmark]: TraceAbstraction took 632.73 ms. Allocated memory is still 157.3 MB. Free memory was 94.4 MB in the beginning and 72.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:24:25,952 INFO L168 Benchmark]: Witness Printer took 43.51 ms. Allocated memory is still 157.3 MB. Free memory was 72.3 MB in the beginning and 70.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:24:25,957 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 157.3 MB. Free memory is still 131.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 635.69 ms. Allocated memory is still 157.3 MB. Free memory was 131.4 MB in the beginning and 108.8 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 95.86 ms. Allocated memory is still 157.3 MB. Free memory was 108.6 MB in the beginning and 140.0 MB in the end (delta: -31.4 MB). Peak memory consumption was 5.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 66.38 ms. Allocated memory is still 157.3 MB. Free memory was 140.0 MB in the beginning and 137.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1140.70 ms. Allocated memory is still 157.3 MB. Free memory was 137.9 MB in the beginning and 94.4 MB in the end (delta: 43.5 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 632.73 ms. Allocated memory is still 157.3 MB. Free memory was 94.4 MB in the beginning and 72.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Witness Printer took 43.51 ms. Allocated memory is still 157.3 MB. Free memory was 72.3 MB in the beginning and 70.8 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: 601]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L585] struct node *nodelast = ((void *)0); [L586] struct node *node = ((void *)0); [L587] COND FALSE !(__VERIFIER_nondet_int()) [L601] node->parent = ((void *)0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 147 locations, 67 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 157 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...