/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/float-newlib/double_req_bl_1072a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:11:20,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:11:20,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:11:21,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:11:21,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:11:21,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:11:21,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:11:21,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:11:21,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:11:21,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:11:21,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:11:21,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:11:21,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:11:21,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:11:21,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:11:21,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:11:21,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:11:21,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:11:21,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:11:21,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:11:21,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:11:21,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:11:21,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:11:21,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:11:21,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 06:11:21,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:11:21,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:11:21,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:11:21,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:11:21,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:11:21,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:11:21,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:11:21,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:11:21,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:11:21,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:11:21,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:11:21,099 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 06:11:21,128 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:11:21,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:11:21,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:11:21,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:11:21,130 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:11:21,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:11:21,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:11:21,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:11:21,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:11:21,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:11:21,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:11:21,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:11:21,132 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:11:21,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:11:21,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:11:21,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:11:21,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:11:21,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:11:21,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:11:21,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:11:21,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:11:21,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:11:21,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:11:21,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:11:21,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:11:21,136 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:11:21,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:11:21,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:11:21,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:11:21,624 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:11:21,626 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:11:21,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1072a.c [2020-12-23 06:11:21,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fec5d3bf4/ffd7492824b94e2699bc3a98ecc520c0/FLAG066a3fea1 [2020-12-23 06:11:22,307 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:11:22,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1072a.c [2020-12-23 06:11:22,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fec5d3bf4/ffd7492824b94e2699bc3a98ecc520c0/FLAG066a3fea1 [2020-12-23 06:11:22,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/fec5d3bf4/ffd7492824b94e2699bc3a98ecc520c0 [2020-12-23 06:11:22,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:11:22,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:11:22,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:11:22,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:11:22,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:11:22,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:11:22" (1/1) ... [2020-12-23 06:11:22,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ebe3dd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:22, skipping insertion in model container [2020-12-23 06:11:22,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:11:22" (1/1) ... [2020-12-23 06:11:22,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:11:22,692 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: StructLHS[VariableLHS[~ew_u~0,],value] left hand side expression in assignment: lhs: VariableLHS[~msw~0,] left hand side expression in assignment: lhs: VariableLHS[~lsw~0,] left hand side expression in assignment: lhs: VariableLHS[~signbit~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~exponent_less_1023~0,] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~0,],parts],msw] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~0,],parts],lsw] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~1,],parts],msw] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~1,],parts],lsw] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~2,],parts],msw] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~iw_u~2,],parts],lsw] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: lhs: StructLHS[VariableLHS[~ew_u~1,],value] left hand side expression in assignment: lhs: VariableLHS[~hx~0,] left hand side expression in assignment: lhs: VariableLHS[~lx~0,] left hand side expression in assignment: lhs: VariableLHS[~hx~0,] [2020-12-23 06:11:22,886 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/float-newlib/double_req_bl_1072a.c[2254,2267] [2020-12-23 06:11:22,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:11:22,900 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#ew_u~0,],base],StructAccessExpression[IdentifierExpression[~#ew_u~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~msw~0,] left hand side expression in assignment: lhs: VariableLHS[~lsw~0,] left hand side expression in assignment: lhs: VariableLHS[~signbit~0,] ----Is the binary operator a bitwise operator? true left hand side expression in assignment: lhs: VariableLHS[~exponent_less_1023~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~#iw_u~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~0,],base],StructAccessExpression[IdentifierExpression[~#iw_u~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~1,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~#iw_u~1,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~1,],base],StructAccessExpression[IdentifierExpression[~#iw_u~1,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~2,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~#iw_u~2,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#iw_u~2,],base],StructAccessExpression[IdentifierExpression[~#iw_u~2,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~x,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#ew_u~1,],base],StructAccessExpression[IdentifierExpression[~#ew_u~1,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~hx~0,] left hand side expression in assignment: lhs: VariableLHS[~lx~0,] left hand side expression in assignment: lhs: VariableLHS[~hx~0,] [2020-12-23 06:11:22,962 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/float-newlib/double_req_bl_1072a.c[2254,2267] [2020-12-23 06:11:22,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:11:22,994 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:11:22,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:22 WrapperNode [2020-12-23 06:11:22,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:11:22,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:11:22,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:11:22,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:11:23,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:22" (1/1) ... [2020-12-23 06:11:23,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:22" (1/1) ... [2020-12-23 06:11:23,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:11:23,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:11:23,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:11:23,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:11:23,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:22" (1/1) ... [2020-12-23 06:11:23,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:22" (1/1) ... [2020-12-23 06:11:23,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:22" (1/1) ... [2020-12-23 06:11:23,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:22" (1/1) ... [2020-12-23 06:11:23,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:22" (1/1) ... [2020-12-23 06:11:23,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:22" (1/1) ... [2020-12-23 06:11:23,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:22" (1/1) ... [2020-12-23 06:11:23,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:11:23,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:11:23,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:11:23,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:11:23,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:22" (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 06:11:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:11:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:11:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-23 06:11:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 06:11:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-23 06:11:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:11:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:11:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 06:11:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 06:11:24,274 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:11:24,275 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-23 06:11:24,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:11:24 BoogieIcfgContainer [2020-12-23 06:11:24,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:11:24,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:11:24,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:11:24,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:11:24,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:11:22" (1/3) ... [2020-12-23 06:11:24,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328eb4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:11:24, skipping insertion in model container [2020-12-23 06:11:24,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:11:22" (2/3) ... [2020-12-23 06:11:24,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328eb4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:11:24, skipping insertion in model container [2020-12-23 06:11:24,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:11:24" (3/3) ... [2020-12-23 06:11:24,286 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072a.c [2020-12-23 06:11:24,294 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:11:24,299 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:11:24,320 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:11:24,350 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:11:24,350 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:11:24,350 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:11:24,350 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:11:24,350 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:11:24,351 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:11:24,351 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:11:24,351 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:11:24,368 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-12-23 06:11:24,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 06:11:24,375 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:11:24,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:11:24,376 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:11:24,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:11:24,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1591034618, now seen corresponding path program 1 times [2020-12-23 06:11:24,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:11:24,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055073368] [2020-12-23 06:11:24,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:11:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:11:24,573 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 06:11:24,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055073368] [2020-12-23 06:11:24,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:11:24,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 06:11:24,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357222365] [2020-12-23 06:11:24,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 06:11:24,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:11:24,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 06:11:24,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 06:11:24,601 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-12-23 06:11:24,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:11:24,624 INFO L93 Difference]: Finished difference Result 60 states and 96 transitions. [2020-12-23 06:11:24,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 06:11:24,626 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-12-23 06:11:24,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:11:24,637 INFO L225 Difference]: With dead ends: 60 [2020-12-23 06:11:24,637 INFO L226 Difference]: Without dead ends: 28 [2020-12-23 06:11:24,641 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 06:11:24,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-12-23 06:11:24,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-12-23 06:11:24,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-23 06:11:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2020-12-23 06:11:24,683 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 14 [2020-12-23 06:11:24,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:11:24,683 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2020-12-23 06:11:24,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 06:11:24,684 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2020-12-23 06:11:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 06:11:24,685 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:11:24,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:11:24,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:11:24,686 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:11:24,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:11:24,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1314303575, now seen corresponding path program 1 times [2020-12-23 06:11:24,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:11:24,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691653785] [2020-12-23 06:11:24,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:11:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:11:25,012 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 06:11:25,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691653785] [2020-12-23 06:11:25,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:11:25,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 06:11:25,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036601275] [2020-12-23 06:11:25,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 06:11:25,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:11:25,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 06:11:25,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 06:11:25,024 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 4 states. [2020-12-23 06:11:25,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:11:25,224 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2020-12-23 06:11:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 06:11:25,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-23 06:11:25,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:11:25,227 INFO L225 Difference]: With dead ends: 57 [2020-12-23 06:11:25,228 INFO L226 Difference]: Without dead ends: 42 [2020-12-23 06:11:25,229 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 06:11:25,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-23 06:11:25,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 31. [2020-12-23 06:11:25,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-23 06:11:25,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2020-12-23 06:11:25,237 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 16 [2020-12-23 06:11:25,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:11:25,238 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2020-12-23 06:11:25,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 06:11:25,238 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2020-12-23 06:11:25,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 06:11:25,239 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:11:25,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:11:25,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 06:11:25,240 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:11:25,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:11:25,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1179882442, now seen corresponding path program 1 times [2020-12-23 06:11:25,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:11:25,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114646497] [2020-12-23 06:11:25,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:11:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:11:26,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:11:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:11:26,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:11:26,633 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 06:11:26,633 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 06:11:26,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 06:11:26,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:11:26 BoogieIcfgContainer [2020-12-23 06:11:26,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:11:26,685 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:11:26,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:11:26,685 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:11:26,686 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:11:24" (3/4) ... [2020-12-23 06:11:26,691 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-23 06:11:26,691 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:11:26,696 INFO L168 Benchmark]: Toolchain (without parser) took 4043.71 ms. Allocated memory was 158.3 MB in the beginning and 204.5 MB in the end (delta: 46.1 MB). Free memory was 133.5 MB in the beginning and 109.7 MB in the end (delta: 23.7 MB). Peak memory consumption was 71.2 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:26,701 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 158.3 MB. Free memory is still 131.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:11:26,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.22 ms. Allocated memory is still 158.3 MB. Free memory was 133.2 MB in the beginning and 122.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:26,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.52 ms. Allocated memory is still 158.3 MB. Free memory was 122.2 MB in the beginning and 115.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:26,706 INFO L168 Benchmark]: Boogie Preprocessor took 130.08 ms. Allocated memory is still 158.3 MB. Free memory was 115.2 MB in the beginning and 110.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:26,713 INFO L168 Benchmark]: RCFGBuilder took 1054.46 ms. Allocated memory is still 158.3 MB. Free memory was 110.0 MB in the beginning and 81.8 MB in the end (delta: 28.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:26,717 INFO L168 Benchmark]: TraceAbstraction took 2405.60 ms. Allocated memory was 158.3 MB in the beginning and 204.5 MB in the end (delta: 46.1 MB). Free memory was 81.8 MB in the beginning and 110.2 MB in the end (delta: -28.5 MB). Peak memory consumption was 54.4 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:26,718 INFO L168 Benchmark]: Witness Printer took 6.00 ms. Allocated memory is still 204.5 MB. Free memory was 110.2 MB in the beginning and 109.7 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:11:26,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 158.3 MB. Free memory is still 131.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 340.22 ms. Allocated memory is still 158.3 MB. Free memory was 133.2 MB in the beginning and 122.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 91.52 ms. Allocated memory is still 158.3 MB. Free memory was 122.2 MB in the beginning and 115.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 130.08 ms. Allocated memory is still 158.3 MB. Free memory was 115.2 MB in the beginning and 110.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1054.46 ms. Allocated memory is still 158.3 MB. Free memory was 110.0 MB in the beginning and 81.8 MB in the end (delta: 28.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2405.60 ms. Allocated memory was 158.3 MB in the beginning and 204.5 MB in the end (delta: 46.1 MB). Free memory was 81.8 MB in the beginning and 110.2 MB in the end (delta: -28.5 MB). Peak memory consumption was 54.4 MB. Max. memory is 8.0 GB. * Witness Printer took 6.00 ms. Allocated memory is still 204.5 MB. Free memory was 110.2 MB in the beginning and 109.7 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 91]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 74, overapproximation of someBinaryArithmeticDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 73. Possible FailurePath: [L86] double x = 1.0 / 0.0; [L20] int signbit; [L21] int msw; [L22] unsigned int lsw; [L23] int exponent_less_1023; [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (msw) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lsw) = ew_u.parts.lsw [L30] signbit = msw & 0x80000000 [L31] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L32] COND TRUE exponent_less_1023 < 20 [L33] COND TRUE exponent_less_1023 < 0 [L35] ieee_double_shape_type iw_u; [L36] iw_u.parts.msw = (signbit) [L37] iw_u.parts.lsw = (0) [L38] EXPR iw_u.value [L38] (x) = iw_u.value [L61] return x; [L87] double res = trunc_double(x); [L66] __int32_t hx, lx; [L68] ieee_double_shape_type ew_u; [L69] ew_u.value = (x) [L70] EXPR ew_u.parts.msw [L70] (hx) = ew_u.parts.msw [L71] EXPR ew_u.parts.lsw [L71] (lx) = ew_u.parts.lsw [L73] hx &= 0x7fffffff [L74] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L75] hx = 0x7ff00000 - hx [L76] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L90] COND TRUE !isinf_double(res) [L91] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 25 SDslu, 47 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 2 MinimizatonAttempts, 11 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 604 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...