/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0662a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:42:11,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:42:11,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:42:12,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:42:12,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:42:12,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:42:12,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:42:12,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:42:12,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:42:12,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:42:12,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:42:12,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:42:12,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:42:12,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:42:12,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:42:12,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:42:12,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:42:12,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:42:12,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:42:12,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:42:12,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:42:12,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:42:12,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:42:12,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:42:12,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:42:12,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:42:12,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:42:12,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:42:12,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:42:12,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:42:12,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:42:12,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:42:12,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:42:12,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:42:12,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:42:12,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:42:12,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:42:12,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:42:12,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:42:12,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:42:12,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:42:12,135 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 19:42:12,186 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:42:12,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:42:12,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:42:12,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:42:12,190 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:42:12,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:42:12,191 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:42:12,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:42:12,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:42:12,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:42:12,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:42:12,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:42:12,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:42:12,193 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:42:12,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:42:12,194 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:42:12,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:42:12,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:42:12,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:42:12,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:42:12,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:42:12,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:42:12,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:42:12,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:42:12,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:42:12,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:42:12,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:42:12,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:42:12,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:42:12,197 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:42:12,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:42:12,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:42:12,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:42:12,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:42:12,735 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:42:12,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0662a.c [2020-10-27 19:42:12,821 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e2d2745b/af6b617ab32646c4bead65acf234e165/FLAG6fda72b80 [2020-10-27 19:42:13,395 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:42:13,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0662a.c [2020-10-27 19:42:13,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e2d2745b/af6b617ab32646c4bead65acf234e165/FLAG6fda72b80 [2020-10-27 19:42:13,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0e2d2745b/af6b617ab32646c4bead65acf234e165 [2020-10-27 19:42:13,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:42:13,741 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:42:13,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:13,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:42:13,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:42:13,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:13" (1/1) ... [2020-10-27 19:42:13,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bca7907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:13, skipping insertion in model container [2020-10-27 19:42:13,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:13" (1/1) ... [2020-10-27 19:42:13,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:42:13,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:42:14,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:14,047 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:42:14,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:14,158 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:42:14,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:14 WrapperNode [2020-10-27 19:42:14,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:14,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:42:14,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:42:14,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:42:14,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:14" (1/1) ... [2020-10-27 19:42:14,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:14" (1/1) ... [2020-10-27 19:42:14,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:14" (1/1) ... [2020-10-27 19:42:14,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:14" (1/1) ... [2020-10-27 19:42:14,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:14" (1/1) ... [2020-10-27 19:42:14,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:14" (1/1) ... [2020-10-27 19:42:14,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:14" (1/1) ... [2020-10-27 19:42:14,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:42:14,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:42:14,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:42:14,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:42:14,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-27 19:42:14,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:42:14,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:42:14,321 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:42:14,321 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 19:42:14,321 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 19:42:14,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 19:42:14,322 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:42:14,322 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:42:14,322 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:42:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:42:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:42:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:42:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 19:42:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:42:14,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:42:14,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:42:14,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:42:14,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:42:14,324 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 19:42:14,325 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 19:42:14,325 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:42:14,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:42:14,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:42:14,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:42:14,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:42:15,223 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:42:15,223 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 19:42:15,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:15 BoogieIcfgContainer [2020-10-27 19:42:15,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:42:15,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:42:15,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:42:15,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:42:15,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:42:13" (1/3) ... [2020-10-27 19:42:15,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436bffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:15, skipping insertion in model container [2020-10-27 19:42:15,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:14" (2/3) ... [2020-10-27 19:42:15,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436bffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:15, skipping insertion in model container [2020-10-27 19:42:15,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:15" (3/3) ... [2020-10-27 19:42:15,236 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662a.c [2020-10-27 19:42:15,249 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:42:15,255 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:42:15,271 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:42:15,302 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:42:15,302 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:42:15,303 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:42:15,303 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:42:15,303 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:42:15,303 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:42:15,303 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:42:15,303 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:42:15,324 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-27 19:42:15,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 19:42:15,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:15,332 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] [2020-10-27 19:42:15,332 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:15,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:15,339 INFO L82 PathProgramCache]: Analyzing trace with hash 199039736, now seen corresponding path program 1 times [2020-10-27 19:42:15,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:15,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777200161] [2020-10-27 19:42:15,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:15,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:15,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:15,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:15,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 19:42:15,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:15,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-10-27 19:42:15,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:15,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:15,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 19:42:15,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:15,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 19:42:16,114 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 19:42:16,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:42:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:16,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:16,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:16,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:42:16,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:16,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 19:42:16,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:42:16,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:16,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:42:16,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 19:42:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:16,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:16,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:16,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:16,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:42:16,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:16,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 19:42:16,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:16,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:16,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:42:16,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:16,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:42:16,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:42:16,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777200161] [2020-10-27 19:42:16,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:42:16,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:42:16,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709434158] [2020-10-27 19:42:16,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:42:16,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:42:16,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:42:16,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:42:16,338 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 4 states. [2020-10-27 19:42:16,492 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 19:42:16,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:42:16,999 INFO L93 Difference]: Finished difference Result 205 states and 323 transitions. [2020-10-27 19:42:17,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:42:17,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-27 19:42:17,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:42:17,013 INFO L225 Difference]: With dead ends: 205 [2020-10-27 19:42:17,013 INFO L226 Difference]: Without dead ends: 99 [2020-10-27 19:42:17,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:42:17,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-27 19:42:17,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-10-27 19:42:17,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-27 19:42:17,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2020-10-27 19:42:17,079 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 20 [2020-10-27 19:42:17,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:42:17,079 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2020-10-27 19:42:17,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:42:17,080 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2020-10-27 19:42:17,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-27 19:42:17,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:17,081 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] [2020-10-27 19:42:17,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:42:17,082 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:17,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:17,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1527493777, now seen corresponding path program 1 times [2020-10-27 19:42:17,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:17,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983945834] [2020-10-27 19:42:17,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:42:17,147 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:42:17,148 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:42:17,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:42:17,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:42:17 BoogieIcfgContainer [2020-10-27 19:42:17,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:42:17,184 INFO L168 Benchmark]: Toolchain (without parser) took 3444.85 ms. Allocated memory was 167.8 MB in the beginning and 219.2 MB in the end (delta: 51.4 MB). Free memory was 142.8 MB in the beginning and 131.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:17,185 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 167.8 MB. Free memory is still 139.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:42:17,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.74 ms. Allocated memory is still 167.8 MB. Free memory was 142.2 MB in the beginning and 127.7 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:17,195 INFO L168 Benchmark]: Boogie Preprocessor took 80.18 ms. Allocated memory is still 167.8 MB. Free memory was 127.7 MB in the beginning and 124.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:17,197 INFO L168 Benchmark]: RCFGBuilder took 984.17 ms. Allocated memory is still 167.8 MB. Free memory was 124.7 MB in the beginning and 117.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:17,198 INFO L168 Benchmark]: TraceAbstraction took 1951.79 ms. Allocated memory was 167.8 MB in the beginning and 219.2 MB in the end (delta: 51.4 MB). Free memory was 117.3 MB in the beginning and 131.0 MB in the end (delta: -13.7 MB). Peak memory consumption was 39.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:17,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 167.8 MB. Free memory is still 139.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 415.74 ms. Allocated memory is still 167.8 MB. Free memory was 142.2 MB in the beginning and 127.7 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 80.18 ms. Allocated memory is still 167.8 MB. Free memory was 127.7 MB in the beginning and 124.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 984.17 ms. Allocated memory is still 167.8 MB. Free memory was 124.7 MB in the beginning and 117.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1951.79 ms. Allocated memory was 167.8 MB in the beginning and 219.2 MB in the end (delta: 51.4 MB). Free memory was 117.3 MB in the beginning and 131.0 MB in the end (delta: -13.7 MB). Peak memory consumption was 39.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 253, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 261. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = -0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y < 0.0 [L258] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L258] RET, EXPR __ieee754_atan2(y, x) [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != -pi_o_2 [L262] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0662a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 140 SDtfs, 18 SDslu, 124 SDs, 0 SdLazy, 138 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1957 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...