/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_0684a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:06:36,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:06:36,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:06:36,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:06:36,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:06:36,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:06:36,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:06:36,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:06:36,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:06:36,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:06:36,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:06:36,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:06:36,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:06:36,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:06:36,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:06:36,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:06:36,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:06:36,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:06:36,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:06:36,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:06:36,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:06:36,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:06:36,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:06:36,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:06:36,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:06:36,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:06:36,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:06:36,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:06:36,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:06:36,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:06:36,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:06:36,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:06:36,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:06:36,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:06:36,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:06:36,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:06:36,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:06:36,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:06:36,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:06:36,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:06:36,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:06:36,200 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 [2020-10-29 09:06:36,228 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:06:36,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:06:36,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:06:36,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:06:36,230 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:06:36,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:06:36,231 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:06:36,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:06:36,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:06:36,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:06:36,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:06:36,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:06:36,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:06:36,233 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:06:36,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:06:36,234 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:06:36,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:06:36,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:06:36,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:06:36,235 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:06:36,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:06:36,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:06:36,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:06:36,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:06:36,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:06:36,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:06:36,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:06:36,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:06:36,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:06:36,238 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:06:36,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:06:36,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:06:36,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:06:36,669 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:06:36,669 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:06:36,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0684a.c [2020-10-29 09:06:36,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4020cf3f/8ca1dafa5cef4c84ba012f795d03e1f2/FLAG44eefc2c0 [2020-10-29 09:06:37,315 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:06:37,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0684a.c [2020-10-29 09:06:37,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4020cf3f/8ca1dafa5cef4c84ba012f795d03e1f2/FLAG44eefc2c0 [2020-10-29 09:06:37,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4020cf3f/8ca1dafa5cef4c84ba012f795d03e1f2 [2020-10-29 09:06:37,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:06:37,687 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:06:37,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:06:37,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:06:37,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:06:37,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:06:37" (1/1) ... [2020-10-29 09:06:37,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa70ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:37, skipping insertion in model container [2020-10-29 09:06:37,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:06:37" (1/1) ... [2020-10-29 09:06:37,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:06:37,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:06:38,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:06:38,072 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:06:38,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:06:38,193 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:06:38,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:38 WrapperNode [2020-10-29 09:06:38,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:06:38,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:06:38,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:06:38,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:06:38,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:38" (1/1) ... [2020-10-29 09:06:38,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:38" (1/1) ... [2020-10-29 09:06:38,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:38" (1/1) ... [2020-10-29 09:06:38,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:38" (1/1) ... [2020-10-29 09:06:38,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:38" (1/1) ... [2020-10-29 09:06:38,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:38" (1/1) ... [2020-10-29 09:06:38,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:38" (1/1) ... [2020-10-29 09:06:38,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:06:38,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:06:38,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:06:38,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:06:38,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:38" (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 [2020-10-29 09:06:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:06:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:06:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:06:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-29 09:06:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-29 09:06:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-29 09:06:38,360 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-29 09:06:38,360 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-29 09:06:38,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:06:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:06:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:06:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:06:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:06:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-29 09:06:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-29 09:06:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-29 09:06:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:06:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:06:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:06:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-29 09:06:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-29 09:06:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-29 09:06:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-29 09:06:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-29 09:06:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:06:38,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:06:38,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:06:38,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-29 09:06:38,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:06:39,154 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:06:39,155 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-29 09:06:39,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:06:39 BoogieIcfgContainer [2020-10-29 09:06:39,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:06:39,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:06:39,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:06:39,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:06:39,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:06:37" (1/3) ... [2020-10-29 09:06:39,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1a9e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:06:39, skipping insertion in model container [2020-10-29 09:06:39,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:38" (2/3) ... [2020-10-29 09:06:39,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1a9e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:06:39, skipping insertion in model container [2020-10-29 09:06:39,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:06:39" (3/3) ... [2020-10-29 09:06:39,166 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684a.c [2020-10-29 09:06:39,177 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:06:39,182 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:06:39,195 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:06:39,222 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:06:39,222 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:06:39,222 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:06:39,222 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:06:39,222 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:06:39,223 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:06:39,223 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:06:39,223 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:06:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2020-10-29 09:06:39,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-29 09:06:39,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:06:39,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:06:39,250 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:06:39,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:06:39,256 INFO L82 PathProgramCache]: Analyzing trace with hash -986197150, now seen corresponding path program 1 times [2020-10-29 09:06:39,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:06:39,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027347780] [2020-10-29 09:06:39,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:06:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:39,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:39,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:39,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:39,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:40,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 09:06:40,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 09:06:40,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 779 [2020-10-29 09:06:40,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:40,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:40,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:06:40,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 09:06:40,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:06:40,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:06:40,384 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-29 09:06:40,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:06:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:40,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:40,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:06:40,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:06:40,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 09:06:40,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:40,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:40,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:40,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:06:40,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:40,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:06:40,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:06:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:40,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:40,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:06:40,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:06:40,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 09:06:40,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:40,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:40,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:40,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 09:06:40,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:40,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:06:40,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 09:06:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:40,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:40,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 09:06:40,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 09:06:40,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 09:06:40,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:40,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:40,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:40,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 09:06:40,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:40,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:06:40,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:06:40,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1027347780] [2020-10-29 09:06:40,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:06:40,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 09:06:40,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036447360] [2020-10-29 09:06:40,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 09:06:40,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:06:40,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 09:06:40,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:06:40,534 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 5 states. [2020-10-29 09:06:40,658 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 09:06:41,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:06:41,077 INFO L93 Difference]: Finished difference Result 238 states and 370 transitions. [2020-10-29 09:06:41,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 09:06:41,079 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-29 09:06:41,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:06:41,090 INFO L225 Difference]: With dead ends: 238 [2020-10-29 09:06:41,090 INFO L226 Difference]: Without dead ends: 116 [2020-10-29 09:06:41,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 09:06:41,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-29 09:06:41,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-29 09:06:41,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-29 09:06:41,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 155 transitions. [2020-10-29 09:06:41,153 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 155 transitions. Word has length 28 [2020-10-29 09:06:41,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:06:41,153 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 155 transitions. [2020-10-29 09:06:41,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 09:06:41,154 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 155 transitions. [2020-10-29 09:06:41,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-29 09:06:41,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:06:41,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 09:06:41,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:06:41,156 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:06:41,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:06:41,157 INFO L82 PathProgramCache]: Analyzing trace with hash 2032723797, now seen corresponding path program 1 times [2020-10-29 09:06:41,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:06:41,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168447252] [2020-10-29 09:06:41,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:06:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 09:06:41,256 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 09:06:41,256 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:06:41,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:06:41,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:06:41 BoogieIcfgContainer [2020-10-29 09:06:41,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:06:41,294 INFO L168 Benchmark]: Toolchain (without parser) took 3610.45 ms. Allocated memory was 151.0 MB in the beginning and 204.5 MB in the end (delta: 53.5 MB). Free memory was 126.0 MB in the beginning and 105.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 74.5 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:41,294 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:06:41,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 503.39 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 110.4 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:41,297 INFO L168 Benchmark]: Boogie Preprocessor took 92.93 ms. Allocated memory is still 151.0 MB. Free memory was 110.4 MB in the beginning and 107.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:41,298 INFO L168 Benchmark]: RCFGBuilder took 868.34 ms. Allocated memory is still 151.0 MB. Free memory was 107.1 MB in the beginning and 91.3 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:41,299 INFO L168 Benchmark]: TraceAbstraction took 2130.79 ms. Allocated memory was 151.0 MB in the beginning and 204.5 MB in the end (delta: 53.5 MB). Free memory was 90.8 MB in the beginning and 105.1 MB in the end (delta: -14.3 MB). Peak memory consumption was 39.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:41,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 503.39 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 110.4 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 92.93 ms. Allocated memory is still 151.0 MB. Free memory was 110.4 MB in the beginning and 107.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 868.34 ms. Allocated memory is still 151.0 MB. Free memory was 107.1 MB in the beginning and 91.3 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2130.79 ms. Allocated memory was 151.0 MB in the beginning and 204.5 MB in the end (delta: 53.5 MB). Free memory was 90.8 MB in the beginning and 105.1 MB in the end (delta: -14.3 MB). Peak memory consumption was 39.7 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 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 287. 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; [L278] double x = __VERIFIER_nondet_double(); [L279] double y = 1.0 / 0.0; [L282] CALL, EXPR isfinite_double(x) [L262] __int32_t hx; [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L282] RET, EXPR isfinite_double(x) [L282] isfinite_double(x) && isinf_double(y) [L282] CALL, EXPR isinf_double(y) [L248] __int32_t hx, lx; [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L282] RET, EXPR isinf_double(y) [L282] isfinite_double(x) && isinf_double(y) [L282] COND TRUE isfinite_double(x) && isinf_double(y) [L284] 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; [L284] RET, EXPR __ieee754_atan2(y, x) [L284] double res = __ieee754_atan2(y, x); [L287] COND TRUE res != pi_o_2 [L288] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0684a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 124 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 155 SDtfs, 14 SDslu, 284 SDs, 0 SdLazy, 174 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred 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, 1.0s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 3348 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...