/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/sina2f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 11:26:34,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 11:26:34,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 11:26:34,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 11:26:34,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 11:26:34,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 11:26:34,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 11:26:34,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 11:26:34,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 11:26:34,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 11:26:34,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 11:26:34,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 11:26:34,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 11:26:34,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 11:26:35,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 11:26:35,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 11:26:35,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 11:26:35,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 11:26:35,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 11:26:35,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 11:26:35,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 11:26:35,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 11:26:35,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 11:26:35,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 11:26:35,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 11:26:35,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 11:26:35,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 11:26:35,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 11:26:35,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 11:26:35,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 11:26:35,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 11:26:35,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 11:26:35,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 11:26:35,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 11:26:35,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 11:26:35,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 11:26:35,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 11:26:35,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 11:26:35,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 11:26:35,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 11:26:35,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 11:26:35,113 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 11:26:35,177 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 11:26:35,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 11:26:35,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 11:26:35,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 11:26:35,184 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 11:26:35,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 11:26:35,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 11:26:35,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 11:26:35,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 11:26:35,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 11:26:35,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 11:26:35,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 11:26:35,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 11:26:35,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 11:26:35,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 11:26:35,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 11:26:35,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 11:26:35,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 11:26:35,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 11:26:35,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 11:26:35,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 11:26:35,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 11:26:35,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 11:26:35,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 11:26:35,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 11:26:35,191 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 11:26:35,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 11:26:35,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 11:26:35,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 11:26:35,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 11:26:35,685 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 11:26:35,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/sina2f.c [2021-01-06 11:26:35,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8f28b7050/1c73adff002e4e4dbdeaf90c0a810a5c/FLAG22ecf5dd1 [2021-01-06 11:26:36,462 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 11:26:36,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/array-fpi/sina2f.c [2021-01-06 11:26:36,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8f28b7050/1c73adff002e4e4dbdeaf90c0a810a5c/FLAG22ecf5dd1 [2021-01-06 11:26:36,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8f28b7050/1c73adff002e4e4dbdeaf90c0a810a5c [2021-01-06 11:26:36,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 11:26:36,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 11:26:36,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 11:26:36,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 11:26:36,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 11:26:36,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:26:36" (1/1) ... [2021-01-06 11:26:36,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432a608e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:26:36, skipping insertion in model container [2021-01-06 11:26:36,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:26:36" (1/1) ... [2021-01-06 11:26:36,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 11:26:36,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 11:26:37,068 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/sina2f.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: 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 11:26:37,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 11:26:37,112 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 11:26:37,130 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/sina2f.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[~#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 11:26:37,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 11:26:37,164 INFO L208 MainTranslator]: Completed translation [2021-01-06 11:26:37,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:26:37 WrapperNode [2021-01-06 11:26:37,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 11:26:37,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 11:26:37,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 11:26:37,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 11:26:37,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:26:37" (1/1) ... [2021-01-06 11:26:37,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:26:37" (1/1) ... [2021-01-06 11:26:37,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 11:26:37,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 11:26:37,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 11:26:37,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 11:26:37,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:26:37" (1/1) ... [2021-01-06 11:26:37,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:26:37" (1/1) ... [2021-01-06 11:26:37,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:26:37" (1/1) ... [2021-01-06 11:26:37,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:26:37" (1/1) ... [2021-01-06 11:26:37,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:26:37" (1/1) ... [2021-01-06 11:26:37,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:26:37" (1/1) ... [2021-01-06 11:26:37,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:26:37" (1/1) ... [2021-01-06 11:26:37,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 11:26:37,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 11:26:37,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 11:26:37,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 11:26:37,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:26:37" (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 11:26:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 11:26:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 11:26:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 11:26:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-06 11:26:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 11:26:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 11:26:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 11:26:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 11:26:37,768 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 11:26:37,769 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-01-06 11:26:37,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:26:37 BoogieIcfgContainer [2021-01-06 11:26:37,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 11:26:37,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 11:26:37,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 11:26:37,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 11:26:37,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:26:36" (1/3) ... [2021-01-06 11:26:37,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b568af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:26:37, skipping insertion in model container [2021-01-06 11:26:37,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:26:37" (2/3) ... [2021-01-06 11:26:37,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b568af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:26:37, skipping insertion in model container [2021-01-06 11:26:37,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:26:37" (3/3) ... [2021-01-06 11:26:37,783 INFO L111 eAbstractionObserver]: Analyzing ICFG sina2f.c [2021-01-06 11:26:37,793 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 11:26:37,800 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 11:26:37,826 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 11:26:37,868 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 11:26:37,868 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 11:26:37,868 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 11:26:37,869 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 11:26:37,869 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 11:26:37,869 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 11:26:37,869 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 11:26:37,870 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 11:26:37,901 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2021-01-06 11:26:37,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 11:26:37,918 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:26:37,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:26:37,922 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:26:37,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:26:37,937 INFO L82 PathProgramCache]: Analyzing trace with hash -592971038, now seen corresponding path program 1 times [2021-01-06 11:26:37,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:26:37,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211188518] [2021-01-06 11:26:37,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:26:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:26:38,148 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 11:26:38,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211188518] [2021-01-06 11:26:38,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:26:38,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 11:26:38,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104577351] [2021-01-06 11:26:38,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 11:26:38,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:26:38,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 11:26:38,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 11:26:38,180 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2021-01-06 11:26:38,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:26:38,202 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2021-01-06 11:26:38,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 11:26:38,204 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2021-01-06 11:26:38,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:26:38,214 INFO L225 Difference]: With dead ends: 44 [2021-01-06 11:26:38,214 INFO L226 Difference]: Without dead ends: 20 [2021-01-06 11:26:38,219 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 11:26:38,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-01-06 11:26:38,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-01-06 11:26:38,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-01-06 11:26:38,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-01-06 11:26:38,265 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 14 [2021-01-06 11:26:38,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:26:38,265 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-01-06 11:26:38,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 11:26:38,266 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-01-06 11:26:38,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 11:26:38,267 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:26:38,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 11:26:38,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 11:26:38,267 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:26:38,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:26:38,269 INFO L82 PathProgramCache]: Analyzing trace with hash 108093540, now seen corresponding path program 1 times [2021-01-06 11:26:38,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:26:38,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47649443] [2021-01-06 11:26:38,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:26:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 11:26:38,377 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 11:26:38,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47649443] [2021-01-06 11:26:38,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 11:26:38,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 11:26:38,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667128381] [2021-01-06 11:26:38,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 11:26:38,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 11:26:38,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 11:26:38,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 11:26:38,384 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 4 states. [2021-01-06 11:26:38,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 11:26:38,495 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2021-01-06 11:26:38,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 11:26:38,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-01-06 11:26:38,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 11:26:38,498 INFO L225 Difference]: With dead ends: 45 [2021-01-06 11:26:38,498 INFO L226 Difference]: Without dead ends: 32 [2021-01-06 11:26:38,500 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 11:26:38,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-01-06 11:26:38,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2021-01-06 11:26:38,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-01-06 11:26:38,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-01-06 11:26:38,508 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2021-01-06 11:26:38,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 11:26:38,509 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-01-06 11:26:38,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 11:26:38,509 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-01-06 11:26:38,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-01-06 11:26:38,510 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 11:26:38,510 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] [2021-01-06 11:26:38,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 11:26:38,510 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 11:26:38,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 11:26:38,512 INFO L82 PathProgramCache]: Analyzing trace with hash 615941150, now seen corresponding path program 1 times [2021-01-06 11:26:38,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 11:26:38,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200162594] [2021-01-06 11:26:38,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 11:26:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 11:26:38,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 11:26:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 11:26:38,645 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 11:26:38,714 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 11:26:38,714 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 11:26:38,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 11:26:38,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:26:38 BoogieIcfgContainer [2021-01-06 11:26:38,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 11:26:38,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 11:26:38,812 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 11:26:38,812 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 11:26:38,813 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:26:37" (3/4) ... [2021-01-06 11:26:38,816 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-06 11:26:38,914 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/array-fpi/sina2f.c-witness.graphml [2021-01-06 11:26:38,915 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 11:26:38,921 INFO L168 Benchmark]: Toolchain (without parser) took 2095.03 ms. Allocated memory is still 159.4 MB. Free memory was 134.8 MB in the beginning and 97.3 MB in the end (delta: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 8.0 GB. [2021-01-06 11:26:38,927 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 159.4 MB. Free memory was 132.3 MB in the beginning and 132.2 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 11:26:38,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.76 ms. Allocated memory is still 159.4 MB. Free memory was 134.5 MB in the beginning and 124.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-01-06 11:26:38,928 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.44 ms. Allocated memory is still 159.4 MB. Free memory was 124.4 MB in the beginning and 122.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 11:26:38,932 INFO L168 Benchmark]: Boogie Preprocessor took 37.01 ms. Allocated memory is still 159.4 MB. Free memory was 122.8 MB in the beginning and 121.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 11:26:38,939 INFO L168 Benchmark]: RCFGBuilder took 515.18 ms. Allocated memory is still 159.4 MB. Free memory was 121.5 MB in the beginning and 138.2 MB in the end (delta: -16.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-01-06 11:26:38,940 INFO L168 Benchmark]: TraceAbstraction took 1036.77 ms. Allocated memory is still 159.4 MB. Free memory was 137.6 MB in the beginning and 100.9 MB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 8.0 GB. [2021-01-06 11:26:38,941 INFO L168 Benchmark]: Witness Printer took 104.58 ms. Allocated memory is still 159.4 MB. Free memory was 100.9 MB in the beginning and 97.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 11:26:38,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 159.4 MB. Free memory was 132.3 MB in the beginning and 132.2 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 341.76 ms. Allocated memory is still 159.4 MB. Free memory was 134.5 MB in the beginning and 124.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.44 ms. Allocated memory is still 159.4 MB. Free memory was 124.4 MB in the beginning and 122.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.01 ms. Allocated memory is still 159.4 MB. Free memory was 122.8 MB in the beginning and 121.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 515.18 ms. Allocated memory is still 159.4 MB. Free memory was 121.5 MB in the beginning and 138.2 MB in the end (delta: -16.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1036.77 ms. Allocated memory is still 159.4 MB. Free memory was 137.6 MB in the beginning and 100.9 MB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 8.0 GB. * Witness Printer took 104.58 ms. Allocated memory is still 159.4 MB. Free memory was 100.9 MB in the beginning and 97.3 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); [L31] sum[0] = 1 [L32] i=0 VAL [N=1] [L32] COND TRUE i