/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/array-fpi/sina5f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 11:27:47,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 11:27:47,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 11:27:47,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 11:27:47,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 11:27:47,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 11:27:47,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 11:27:47,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 11:27:47,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 11:27:47,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 11:27:47,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 11:27:47,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 11:27:47,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 11:27:47,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 11:27:47,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 11:27:47,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 11:27:47,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 11:27:47,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 11:27:47,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 11:27:47,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 11:27:47,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 11:27:47,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 11:27:47,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 11:27:47,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 11:27:47,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 11:27:47,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 11:27:47,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 11:27:47,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 11:27:47,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 11:27:47,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 11:27:47,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 11:27:47,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 11:27:47,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 11:27:47,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 11:27:47,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 11:27:47,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 11:27:47,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 11:27:47,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 11:27:47,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 11:27:47,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 11:27:47,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 11:27:47,320 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 11:27:47,369 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 11:27:47,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 11:27:47,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 11:27:47,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 11:27:47,375 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 11:27:47,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 11:27:47,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 11:27:47,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 11:27:47,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 11:27:47,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 11:27:47,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 11:27:47,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 11:27:47,377 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 11:27:47,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 11:27:47,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 11:27:47,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 11:27:47,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 11:27:47,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 11:27:47,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 11:27:47,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 11:27:47,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 11:27:47,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 11:27:47,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 11:27:47,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 11:27:47,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 11:27:47,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 11:27:47,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 11:27:47,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 11:27:47,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 11:27:47,860 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 11:27:47,861 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 11:27:47,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/sina5f.c [2021-01-06 11:27:47,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/b68b3ca81/29e1ad25f7e04dc48a1e1ee714e637e3/FLAG811d183c7 [2021-01-06 11:27:48,557 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 11:27:48,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/sina5f.c [2021-01-06 11:27:48,567 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/b68b3ca81/29e1ad25f7e04dc48a1e1ee714e637e3/FLAG811d183c7 [2021-01-06 11:27:48,916 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/b68b3ca81/29e1ad25f7e04dc48a1e1ee714e637e3 [2021-01-06 11:27:48,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 11:27:48,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 11:27:48,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 11:27:48,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 11:27:48,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 11:27:48,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:27:48" (1/1) ... [2021-01-06 11:27:48,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@587bc575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:27:48, skipping insertion in model container [2021-01-06 11:27:48,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:27:48" (1/1) ... [2021-01-06 11:27:48,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 11:27:48,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 11:27:49,228 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/array-fpi/sina5f.c[589,602] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~sum~0,],[IntegerLiteral[0]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~b~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~b~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~sum~0,],[IntegerLiteral[0]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~sum~0,],[IntegerLiteral[0]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] [2021-01-06 11:27:49,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 11:27:49,275 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 11:27:49,291 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/array-fpi/sina5f.c[589,602] left hand side expression in assignment: lhs: VariableLHS[~N~0,GLOBAL] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sum~0,],base],StructAccessExpression[IdentifierExpression[~#sum~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~b~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~b~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sum~0,],base],StructAccessExpression[IdentifierExpression[~#sum~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#sum~0,],base],StructAccessExpression[IdentifierExpression[~#sum~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~a~0,],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~a~0,],offset],BinaryExpression[ARITHMUL,IntegerLiteral[8],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: lhs: VariableLHS[~i~0,] [2021-01-06 11:27:49,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 11:27:49,326 INFO L208 MainTranslator]: Completed translation [2021-01-06 11:27:49,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:27:49 WrapperNode [2021-01-06 11:27:49,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 11:27:49,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 11:27:49,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 11:27:49,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 11:27:49,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:27:49" (1/1) ... [2021-01-06 11:27:49,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:27:49" (1/1) ... [2021-01-06 11:27:49,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 11:27:49,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 11:27:49,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 11:27:49,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 11:27:49,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:27:49" (1/1) ... [2021-01-06 11:27:49,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:27:49" (1/1) ... [2021-01-06 11:27:49,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:27:49" (1/1) ... [2021-01-06 11:27:49,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:27:49" (1/1) ... [2021-01-06 11:27:49,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:27:49" (1/1) ... [2021-01-06 11:27:49,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:27:49" (1/1) ... [2021-01-06 11:27:49,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:27:49" (1/1) ... [2021-01-06 11:27:49,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 11:27:49,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 11:27:49,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 11:27:49,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 11:27:49,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:27:49" (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 [2021-01-06 11:27:49,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 11:27:49,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 11:27:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 11:27:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-06 11:27:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 11:27:49,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 11:27:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 11:27:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 11:27:50,008 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 11:27:50,009 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-01-06 11:27:50,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:27:50 BoogieIcfgContainer [2021-01-06 11:27:50,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 11:27:50,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 11:27:50,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 11:27:50,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 11:27:50,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:27:48" (1/3) ... [2021-01-06 11:27:50,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f8ff95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:27:50, skipping insertion in model container [2021-01-06 11:27:50,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:27:49" (2/3) ... [2021-01-06 11:27:50,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f8ff95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:27:50, skipping insertion in model container [2021-01-06 11:27:50,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:27:50" (3/3) ... [2021-01-06 11:27:50,022 INFO L111 eAbstractionObserver]: Analyzing ICFG sina5f.c [2021-01-06 11:27:50,031 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 11:27:50,037 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 11:27:50,062 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 11:27:50,092 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 11:27:50,093 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 11:27:50,093 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 11:27:50,093 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 11:27:50,093 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 11:27:50,093 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 11:27:50,093 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 11:27:50,094 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 11:27:50,113 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2021-01-06 11:27:50,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 11:27:50,121 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:27:50,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:27:50,123 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:27:50,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:27:50,130 INFO L82 PathProgramCache]: Analyzing trace with hash -635308358, now seen corresponding path program 1 times [2021-01-06 11:27:50,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:27:50,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307088996] [2021-01-06 11:27:50,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:27:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:27:50,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:27:50,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307088996] [2021-01-06 11:27:50,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:27:50,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 11:27:50,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589929717] [2021-01-06 11:27:50,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 11:27:50,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:27:50,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 11:27:50,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 11:27:50,373 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2021-01-06 11:27:50,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:27:50,399 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2021-01-06 11:27:50,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 11:27:50,401 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-01-06 11:27:50,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:27:50,411 INFO L225 Difference]: With dead ends: 56 [2021-01-06 11:27:50,412 INFO L226 Difference]: Without dead ends: 26 [2021-01-06 11:27:50,416 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 [2021-01-06 11:27:50,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-01-06 11:27:50,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-01-06 11:27:50,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-01-06 11:27:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-01-06 11:27:50,461 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 18 [2021-01-06 11:27:50,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:27:50,462 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-01-06 11:27:50,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 11:27:50,462 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-01-06 11:27:50,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 11:27:50,463 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:27:50,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:27:50,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 11:27:50,464 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:27:50,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:27:50,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1344199344, now seen corresponding path program 1 times [2021-01-06 11:27:50,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:27:50,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423908737] [2021-01-06 11:27:50,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:27:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:27:50,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 11:27:50,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423908737] [2021-01-06 11:27:50,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:27:50,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 11:27:50,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211727315] [2021-01-06 11:27:50,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 11:27:50,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:27:50,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 11:27:50,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 11:27:50,624 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 4 states. [2021-01-06 11:27:50,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:27:50,807 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2021-01-06 11:27:50,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 11:27:50,808 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2021-01-06 11:27:50,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:27:50,810 INFO L225 Difference]: With dead ends: 61 [2021-01-06 11:27:50,810 INFO L226 Difference]: Without dead ends: 42 [2021-01-06 11:27:50,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 11:27:50,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-01-06 11:27:50,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 31. [2021-01-06 11:27:50,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-01-06 11:27:50,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2021-01-06 11:27:50,821 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 18 [2021-01-06 11:27:50,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:27:50,822 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-01-06 11:27:50,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 11:27:50,822 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2021-01-06 11:27:50,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-01-06 11:27:50,823 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:27:50,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:27:50,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 11:27:50,824 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:27:50,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:27:50,825 INFO L82 PathProgramCache]: Analyzing trace with hash -933126362, now seen corresponding path program 1 times [2021-01-06 11:27:50,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:27:50,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053800206] [2021-01-06 11:27:50,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:27:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 11:27:50,940 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 11:27:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 11:27:51,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 11:27:51,118 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 11:27:51,119 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 11:27:51,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 11:27:51,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:27:51 BoogieIcfgContainer [2021-01-06 11:27:51,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 11:27:51,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 11:27:51,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 11:27:51,181 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 11:27:51,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:27:50" (3/4) ... [2021-01-06 11:27:51,186 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-06 11:27:51,262 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/array-fpi/sina5f.c-witness.graphml [2021-01-06 11:27:51,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 11:27:51,265 INFO L168 Benchmark]: Toolchain (without parser) took 2338.53 ms. Allocated memory is still 154.1 MB. Free memory was 128.4 MB in the beginning and 85.5 MB in the end (delta: 42.9 MB). Peak memory consumption was 43.2 MB. Max. memory is 8.0 GB. [2021-01-06 11:27:51,266 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 154.1 MB. Free memory is still 125.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 11:27:51,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.36 ms. Allocated memory is still 154.1 MB. Free memory was 128.3 MB in the beginning and 117.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-06 11:27:51,267 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.08 ms. Allocated memory is still 154.1 MB. Free memory was 117.8 MB in the beginning and 116.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 11:27:51,268 INFO L168 Benchmark]: Boogie Preprocessor took 36.04 ms. Allocated memory is still 154.1 MB. Free memory was 116.2 MB in the beginning and 114.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 11:27:51,269 INFO L168 Benchmark]: RCFGBuilder took 596.71 ms. Allocated memory is still 154.1 MB. Free memory was 114.8 MB in the beginning and 133.8 MB in the end (delta: -19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 8.0 GB. [2021-01-06 11:27:51,270 INFO L168 Benchmark]: TraceAbstraction took 1167.17 ms. Allocated memory is still 154.1 MB. Free memory was 133.2 MB in the beginning and 89.2 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. [2021-01-06 11:27:51,271 INFO L168 Benchmark]: Witness Printer took 81.94 ms. Allocated memory is still 154.1 MB. Free memory was 89.2 MB in the beginning and 85.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 11:27:51,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 154.1 MB. Free memory is still 125.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 396.36 ms. Allocated memory is still 154.1 MB. Free memory was 128.3 MB in the beginning and 117.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 48.08 ms. Allocated memory is still 154.1 MB. Free memory was 117.8 MB in the beginning and 116.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.04 ms. Allocated memory is still 154.1 MB. Free memory was 116.2 MB in the beginning and 114.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 596.71 ms. Allocated memory is still 154.1 MB. Free memory was 114.8 MB in the beginning and 133.8 MB in the end (delta: -19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1167.17 ms. Allocated memory is still 154.1 MB. Free memory was 133.2 MB in the beginning and 89.2 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. * Witness Printer took 81.94 ms. Allocated memory is still 154.1 MB. Free memory was 89.2 MB in the beginning and 85.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L30] long long *b = malloc(sizeof(long long)*N); [L32] sum[0] = 0 [L33] i=0 VAL [N=1] [L33] COND TRUE i