/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-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/forester-heap/sll-token-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:24:46,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:24:46,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:24:46,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:24:46,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:24:46,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:24:46,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:24:46,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:24:46,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:24:46,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:24:46,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:24:46,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:24:46,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:24:46,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:24:46,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:24:46,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:24:46,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:24:46,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:24:46,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:24:46,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:24:46,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:24:46,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:24:46,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:24:46,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:24:46,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 06:24:46,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 06:24:46,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 06:24:46,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 06:24:46,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 06:24:46,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 06:24:46,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:24:46,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:24:46,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:24:46,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:24:46,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:24:46,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:24:46,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:24:46,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:24:46,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:24:46,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:24:46,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:24:46,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:24:46,481 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:24:46,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:24:46,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:24:46,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:24:46,487 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:24:46,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:24:46,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:24:46,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:24:46,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:24:46,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:24:46,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:24:46,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:24:46,491 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:24:46,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:24:46,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:24:46,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:24:46,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:24:46,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:24:46,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:24:46,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:24:46,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:24:46,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:24:46,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:24:46,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:24:46,493 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:24:46,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:24:46,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:24:46,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:24:46,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:24:46,944 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:24:46,945 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:24:46,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-token-1.i [2020-12-23 06:24:47,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d4275462d/6d66cc5216af43f1aef5926865cb32bd/FLAG6b8061593 [2020-12-23 06:24:47,821 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:24:47,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-token-1.i [2020-12-23 06:24:47,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d4275462d/6d66cc5216af43f1aef5926865cb32bd/FLAG6b8061593 [2020-12-23 06:24:48,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d4275462d/6d66cc5216af43f1aef5926865cb32bd [2020-12-23 06:24:48,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:24:48,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:24:48,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:24:48,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:24:48,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:24:48,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:24:48" (1/1) ... [2020-12-23 06:24:48,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702d5ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:24:48, skipping insertion in model container [2020-12-23 06:24:48,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:24:48" (1/1) ... [2020-12-23 06:24:48,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:24:48,209 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],StructAccessExpression[IdentifierExpression[~head~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~head~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],StructAccessExpression[IdentifierExpression[~x~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] [2020-12-23 06:24:48,562 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/forester-heap/sll-token-1.i[22162,22175] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],StructAccessExpression[IdentifierExpression[~x~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem8,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem8,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 06:24:48,570 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/forester-heap/sll-token-1.i[22311,22324] [2020-12-23 06:24:48,572 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/forester-heap/sll-token-1.i[22402,22415] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 06:24:48,573 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/forester-heap/sll-token-1.i[22484,22497] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 06:24:48,575 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/forester-heap/sll-token-1.i[22562,22575] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~head~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 06:24:48,578 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/forester-heap/sll-token-1.i[22708,22721] [2020-12-23 06:24:48,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:24:48,593 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],StructAccessExpression[IdentifierExpression[~head~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~head~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~head~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],StructAccessExpression[IdentifierExpression[~x~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] [2020-12-23 06:24:48,636 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/forester-heap/sll-token-1.i[22162,22175] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~x~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~x~0,],base],StructAccessExpression[IdentifierExpression[~x~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem8,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem8,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 06:24:48,639 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/forester-heap/sll-token-1.i[22311,22324] [2020-12-23 06:24:48,640 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/forester-heap/sll-token-1.i[22402,22415] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 06:24:48,642 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/forester-heap/sll-token-1.i[22484,22497] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 06:24:48,643 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/forester-heap/sll-token-1.i[22562,22575] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~head~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 06:24:48,646 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/forester-heap/sll-token-1.i[22708,22721] [2020-12-23 06:24:48,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:24:48,710 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:24:48,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:24:48 WrapperNode [2020-12-23 06:24:48,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:24:48,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:24:48,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:24:48,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:24:48,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:24:48" (1/1) ... [2020-12-23 06:24:48,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:24:48" (1/1) ... [2020-12-23 06:24:48,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:24:48,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:24:48,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:24:48,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:24:48,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:24:48" (1/1) ... [2020-12-23 06:24:48,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:24:48" (1/1) ... [2020-12-23 06:24:48,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:24:48" (1/1) ... [2020-12-23 06:24:48,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:24:48" (1/1) ... [2020-12-23 06:24:48,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:24:48" (1/1) ... [2020-12-23 06:24:48,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:24:48" (1/1) ... [2020-12-23 06:24:48,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:24:48" (1/1) ... [2020-12-23 06:24:48,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:24:48,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:24:48,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:24:48,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:24:48,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:24:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:24:48,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 06:24:48,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 06:24:48,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 06:24:48,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 06:24:48,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:24:48,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 06:24:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 06:24:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:24:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:24:48,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:24:49,605 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:24:49,605 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2020-12-23 06:24:49,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:24:49 BoogieIcfgContainer [2020-12-23 06:24:49,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:24:49,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:24:49,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:24:49,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:24:49,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:24:48" (1/3) ... [2020-12-23 06:24:49,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdaf2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:24:49, skipping insertion in model container [2020-12-23 06:24:49,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:24:48" (2/3) ... [2020-12-23 06:24:49,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdaf2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:24:49, skipping insertion in model container [2020-12-23 06:24:49,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:24:49" (3/3) ... [2020-12-23 06:24:49,654 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-token-1.i [2020-12-23 06:24:49,675 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:24:49,685 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-23 06:24:49,736 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-23 06:24:49,785 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:24:49,786 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:24:49,786 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:24:49,786 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:24:49,786 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:24:49,786 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:24:49,787 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:24:49,787 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:24:49,805 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-12-23 06:24:49,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 06:24:49,811 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:24:49,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 06:24:49,812 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:24:49,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:24:49,819 INFO L82 PathProgramCache]: Analyzing trace with hash 890337990, now seen corresponding path program 1 times [2020-12-23 06:24:49,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:24:49,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26315788] [2020-12-23 06:24:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:24:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:24:50,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:24:50,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26315788] [2020-12-23 06:24:50,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:24:50,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 06:24:50,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573096674] [2020-12-23 06:24:50,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 06:24:50,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:24:50,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 06:24:50,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 06:24:50,081 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2020-12-23 06:24:50,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:24:50,113 INFO L93 Difference]: Finished difference Result 86 states and 132 transitions. [2020-12-23 06:24:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 06:24:50,115 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-23 06:24:50,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:24:50,148 INFO L225 Difference]: With dead ends: 86 [2020-12-23 06:24:50,148 INFO L226 Difference]: Without dead ends: 39 [2020-12-23 06:24:50,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 06:24:50,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-23 06:24:50,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-23 06:24:50,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-23 06:24:50,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-12-23 06:24:50,218 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 6 [2020-12-23 06:24:50,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:24:50,219 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-12-23 06:24:50,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 06:24:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-12-23 06:24:50,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 06:24:50,220 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:24:50,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 06:24:50,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:24:50,221 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:24:50,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:24:50,224 INFO L82 PathProgramCache]: Analyzing trace with hash 889571369, now seen corresponding path program 1 times [2020-12-23 06:24:50,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:24:50,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443356999] [2020-12-23 06:24:50,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:24:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:24:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:24:50,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443356999] [2020-12-23 06:24:50,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:24:50,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 06:24:50,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056804232] [2020-12-23 06:24:50,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 06:24:50,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:24:50,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 06:24:50,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 06:24:50,354 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 3 states. [2020-12-23 06:24:50,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:24:50,427 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2020-12-23 06:24:50,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 06:24:50,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-23 06:24:50,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:24:50,429 INFO L225 Difference]: With dead ends: 39 [2020-12-23 06:24:50,429 INFO L226 Difference]: Without dead ends: 37 [2020-12-23 06:24:50,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 06:24:50,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-23 06:24:50,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-23 06:24:50,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-23 06:24:50,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2020-12-23 06:24:50,437 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 6 [2020-12-23 06:24:50,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:24:50,438 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2020-12-23 06:24:50,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 06:24:50,438 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-12-23 06:24:50,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 06:24:50,439 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:24:50,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:24:50,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 06:24:50,439 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:24:50,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:24:50,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1806865149, now seen corresponding path program 1 times [2020-12-23 06:24:50,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:24:50,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173587574] [2020-12-23 06:24:50,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:24:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:24:50,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:24:50,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173587574] [2020-12-23 06:24:50,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:24:50,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 06:24:50,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210799405] [2020-12-23 06:24:50,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 06:24:50,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:24:50,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 06:24:50,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 06:24:50,517 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 4 states. [2020-12-23 06:24:50,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:24:50,625 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2020-12-23 06:24:50,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 06:24:50,626 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-23 06:24:50,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:24:50,628 INFO L225 Difference]: With dead ends: 63 [2020-12-23 06:24:50,628 INFO L226 Difference]: Without dead ends: 61 [2020-12-23 06:24:50,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 06:24:50,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-12-23 06:24:50,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 35. [2020-12-23 06:24:50,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-23 06:24:50,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2020-12-23 06:24:50,640 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 7 [2020-12-23 06:24:50,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:24:50,640 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2020-12-23 06:24:50,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 06:24:50,641 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2020-12-23 06:24:50,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 06:24:50,641 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:24:50,642 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:24:50,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 06:24:50,642 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:24:50,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:24:50,643 INFO L82 PathProgramCache]: Analyzing trace with hash -913382283, now seen corresponding path program 1 times [2020-12-23 06:24:50,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:24:50,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585269974] [2020-12-23 06:24:50,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:24:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:24:50,713 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:24:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:24:50,766 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:24:50,796 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 06:24:50,797 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 06:24:50,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 06:24:50,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:24:50 BoogieIcfgContainer [2020-12-23 06:24:50,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:24:50,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:24:50,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:24:50,834 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:24:50,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:24:49" (3/4) ... [2020-12-23 06:24:50,837 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 06:24:50,889 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/forester-heap/sll-token-1.i-witness.graphml [2020-12-23 06:24:50,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:24:50,892 INFO L168 Benchmark]: Toolchain (without parser) took 2772.63 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 86.4 MB in the end (delta: 39.4 MB). Peak memory consumption was 39.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:24:50,893 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.2 MB in the end (delta: 100.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:24:50,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 588.45 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 102.8 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:24:50,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.86 ms. Allocated memory is still 151.0 MB. Free memory was 102.8 MB in the beginning and 100.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:24:50,895 INFO L168 Benchmark]: Boogie Preprocessor took 51.66 ms. Allocated memory is still 151.0 MB. Free memory was 100.8 MB in the beginning and 99.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:24:50,896 INFO L168 Benchmark]: RCFGBuilder took 783.84 ms. Allocated memory is still 151.0 MB. Free memory was 99.2 MB in the beginning and 76.3 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:24:50,897 INFO L168 Benchmark]: TraceAbstraction took 1223.67 ms. Allocated memory is still 151.0 MB. Free memory was 76.0 MB in the beginning and 88.5 MB in the end (delta: -12.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:24:50,898 INFO L168 Benchmark]: Witness Printer took 55.17 ms. Allocated memory is still 151.0 MB. Free memory was 88.5 MB in the beginning and 86.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:24:50,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.2 MB in the end (delta: 100.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 588.45 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 102.8 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 57.86 ms. Allocated memory is still 151.0 MB. Free memory was 102.8 MB in the beginning and 100.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 51.66 ms. Allocated memory is still 151.0 MB. Free memory was 100.8 MB in the beginning and 99.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 783.84 ms. Allocated memory is still 151.0 MB. Free memory was 99.2 MB in the beginning and 76.3 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1223.67 ms. Allocated memory is still 151.0 MB. Free memory was 76.0 MB in the beginning and 88.5 MB in the end (delta: -12.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 55.17 ms. Allocated memory is still 151.0 MB. Free memory was 88.5 MB in the beginning and 86.4 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: 1031]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1003] SLL* head = malloc(sizeof(SLL)); [L1004] head->next = ((void*)0) [L1005] head->data = 0 [L1007] SLL* x = head; [L1010] COND FALSE !(__VERIFIER_nondet_int()) [L1018] x->data = 1 [L1019] x->next = malloc(sizeof(SLL)) [L1020] EXPR x->next [L1020] x->next->data = 2 [L1022] x = head [L1024] COND FALSE !(!(((void*)0) != x)) [L1026] EXPR x->data [L1026] COND FALSE !(1 != x->data) [L1031] EXPR x->data [L1031] COND TRUE !(2 == x->data) [L1031] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 106 SDtfs, 76 SDslu, 44 SDs, 0 SdLazy, 39 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 3 MinimizatonAttempts, 26 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 173 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...