/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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 -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0530b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:47:42,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:47:42,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:47:42,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:47:42,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:47:42,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:47:42,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:47:42,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:47:42,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:47:42,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:47:42,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:47:42,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:47:42,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:47:42,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:47:42,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:47:42,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:47:42,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:47:42,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:47:42,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:47:42,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:47:42,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:47:42,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:47:42,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:47:42,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:47:42,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:47:42,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:47:42,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:47:42,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:47:42,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:47:42,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:47:42,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:47:42,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:47:42,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:47:42,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:47:42,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:47:42,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:47:42,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:47:42,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:47:42,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:47:42,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:47:42,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:47:42,176 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 [2020-10-14 04:47:42,217 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:47:42,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:47:42,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:47:42,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:47:42,220 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:47:42,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:47:42,220 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:47:42,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:47:42,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:47:42,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:47:42,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:47:42,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:47:42,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:47:42,222 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:47:42,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:47:42,222 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:47:42,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:47:42,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:47:42,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:47:42,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:47:42,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:47:42,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:47:42,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:47:42,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:47:42,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:47:42,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:47:42,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:47:42,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:47:42,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:47:42,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 04:47:42,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:47:42,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:47:42,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:47:42,571 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:47:42,571 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:47:42,572 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0530b.c [2020-10-14 04:47:42,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f0b3f887/e8d16c1ff0dc4d07b1f7979fb348baec/FLAG1e81f9018 [2020-10-14 04:47:43,188 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:47:43,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0530b.c [2020-10-14 04:47:43,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f0b3f887/e8d16c1ff0dc4d07b1f7979fb348baec/FLAG1e81f9018 [2020-10-14 04:47:43,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f0b3f887/e8d16c1ff0dc4d07b1f7979fb348baec [2020-10-14 04:47:43,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:47:43,509 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:47:43,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:47:43,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:47:43,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:47:43,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:47:43" (1/1) ... [2020-10-14 04:47:43,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1333f6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:43, skipping insertion in model container [2020-10-14 04:47:43,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:47:43" (1/1) ... [2020-10-14 04:47:43,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:47:43,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:47:44,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:47:44,077 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:47:44,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:47:44,245 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:47:44,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:44 WrapperNode [2020-10-14 04:47:44,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:47:44,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:47:44,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:47:44,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:47:44,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:44" (1/1) ... [2020-10-14 04:47:44,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:44" (1/1) ... [2020-10-14 04:47:44,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:44" (1/1) ... [2020-10-14 04:47:44,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:44" (1/1) ... [2020-10-14 04:47:44,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:44" (1/1) ... [2020-10-14 04:47:44,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:44" (1/1) ... [2020-10-14 04:47:44,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:44" (1/1) ... [2020-10-14 04:47:44,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:47:44,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:47:44,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:47:44,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:47:44,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:44" (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 [2020-10-14 04:47:44,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:47:44,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:47:44,519 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-10-14 04:47:44,519 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-10-14 04:47:44,519 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2020-10-14 04:47:44,519 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-14 04:47:44,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2020-10-14 04:47:44,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2020-10-14 04:47:44,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2020-10-14 04:47:44,521 INFO L138 BoogieDeclarations]: Found implementation of procedure tan_float [2020-10-14 04:47:44,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-10-14 04:47:44,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:47:44,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:47:44,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-14 04:47:44,523 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-10-14 04:47:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 04:47:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-14 04:47:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 04:47:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 04:47:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 04:47:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-14 04:47:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-10-14 04:47:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2020-10-14 04:47:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-14 04:47:44,527 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2020-10-14 04:47:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2020-10-14 04:47:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2020-10-14 04:47:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure tan_float [2020-10-14 04:47:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-10-14 04:47:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:47:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:47:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 04:47:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-14 04:47:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:47:45,926 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:47:45,926 INFO L295 CfgBuilder]: Removed 65 assume(true) statements. [2020-10-14 04:47:45,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:47:45 BoogieIcfgContainer [2020-10-14 04:47:45,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:47:45,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:47:45,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:47:45,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:47:45,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:47:43" (1/3) ... [2020-10-14 04:47:45,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3730984c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:47:45, skipping insertion in model container [2020-10-14 04:47:45,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:47:44" (2/3) ... [2020-10-14 04:47:45,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3730984c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:47:45, skipping insertion in model container [2020-10-14 04:47:45,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:47:45" (3/3) ... [2020-10-14 04:47:45,941 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530b.c [2020-10-14 04:47:45,951 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:47:45,959 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:47:45,973 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:47:45,998 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:47:45,998 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:47:45,998 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:47:45,998 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:47:45,999 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:47:45,999 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:47:45,999 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:47:45,999 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:47:46,022 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states. [2020-10-14 04:47:46,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-14 04:47:46,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:46,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:47:46,030 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:46,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:46,036 INFO L82 PathProgramCache]: Analyzing trace with hash -437910547, now seen corresponding path program 1 times [2020-10-14 04:47:46,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:46,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112301044] [2020-10-14 04:47:46,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:46,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:46,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:46,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 04:47:46,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:46,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-10-14 04:47:46,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:46,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:46,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:46,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 04:47:46,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:46,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 04:47:46,956 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-14 04:47:46,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:47:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:46,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:47,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:47,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:47,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:47,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 04:47:47,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:47,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:47,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:47,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:47:47,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:47,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:47:47,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 04:47:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:47,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:47,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:47,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 04:47:47,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:47,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 04:47:47,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:47,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 04:47:47,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:47,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:47:47,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:47:47,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112301044] [2020-10-14 04:47:47,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:47:47,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:47:47,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343386859] [2020-10-14 04:47:47,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:47:47,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:47:47,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:47:47,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:47:47,112 INFO L87 Difference]: Start difference. First operand 271 states. Second operand 4 states. [2020-10-14 04:47:47,257 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-14 04:47:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:47:48,139 INFO L93 Difference]: Finished difference Result 534 states and 867 transitions. [2020-10-14 04:47:48,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 04:47:48,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-14 04:47:48,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:47:48,155 INFO L225 Difference]: With dead ends: 534 [2020-10-14 04:47:48,156 INFO L226 Difference]: Without dead ends: 267 [2020-10-14 04:47:48,163 INFO L675 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 [2020-10-14 04:47:48,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-10-14 04:47:48,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2020-10-14 04:47:48,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-10-14 04:47:48,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 360 transitions. [2020-10-14 04:47:48,240 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 360 transitions. Word has length 18 [2020-10-14 04:47:48,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:47:48,240 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 360 transitions. [2020-10-14 04:47:48,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:47:48,241 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 360 transitions. [2020-10-14 04:47:48,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 04:47:48,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:48,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:47:48,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:47:48,243 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:48,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:48,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1493062156, now seen corresponding path program 1 times [2020-10-14 04:47:48,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:48,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622161429] [2020-10-14 04:47:48,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 04:47:48,372 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 04:47:48,373 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 04:47:48,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:47:48,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:47:48 BoogieIcfgContainer [2020-10-14 04:47:48,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 04:47:48,401 INFO L168 Benchmark]: Toolchain (without parser) took 4890.98 ms. Allocated memory was 147.8 MB in the beginning and 285.2 MB in the end (delta: 137.4 MB). Free memory was 102.7 MB in the beginning and 228.4 MB in the end (delta: -125.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2020-10-14 04:47:48,401 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-14 04:47:48,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.85 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.7 MB in the beginning and 163.0 MB in the end (delta: -60.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-14 04:47:48,403 INFO L168 Benchmark]: Boogie Preprocessor took 190.05 ms. Allocated memory is still 204.5 MB. Free memory was 163.0 MB in the beginning and 154.4 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2020-10-14 04:47:48,404 INFO L168 Benchmark]: RCFGBuilder took 1494.39 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 154.4 MB in the beginning and 138.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 68.4 MB. Max. memory is 7.1 GB. [2020-10-14 04:47:48,405 INFO L168 Benchmark]: TraceAbstraction took 2464.95 ms. Allocated memory was 233.8 MB in the beginning and 285.2 MB in the end (delta: 51.4 MB). Free memory was 138.3 MB in the beginning and 228.4 MB in the end (delta: -90.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-14 04:47:48,409 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 735.85 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.7 MB in the beginning and 163.0 MB in the end (delta: -60.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 190.05 ms. Allocated memory is still 204.5 MB. Free memory was 163.0 MB in the beginning and 154.4 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1494.39 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 154.4 MB in the beginning and 138.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 68.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2464.95 ms. Allocated memory was 233.8 MB in the beginning and 285.2 MB in the end (delta: 51.4 MB). Free memory was 138.3 MB in the beginning and 228.4 MB in the end (delta: -90.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 627]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 626, overapproximation of someUnaryDOUBLEoperation at line 495, overapproximation of bitwiseAnd at line 589, overapproximation of someUnaryFLOAToperation at line 622, overapproximation of someBinaryArithmeticFLOAToperation at line 594. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L77-L79] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L147] static const int init_jk_krempio[] = {4, 7, 9}; [L149-L153] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L155-L157] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L332-L350] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L352-L358] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L360-L369] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L489-L497] static const float one_ktan = 1.0000000000e+00, pio4_ktan = 7.8539812565e-01, pio4lo_ktan = 3.7748947079e-08, T_ktan[] = { 3.3333334327e-01, 1.3333334029e-01, 5.3968254477e-02, 2.1869488060e-02, 8.8632395491e-03, 3.5920790397e-03, 1.4562094584e-03, 5.8804126456e-04, 2.4646313977e-04, 7.8179444245e-05, 7.1407252108e-05, -1.8558637748e-05, 2.5907305826e-05, }; [L622] float x = -0.0f; [L623] CALL, EXPR tan_float(x) [L580] float y[2], z = 0.0; [L581] __int32_t n, ix; [L584] ieee_float_shape_type gf_u; [L585] gf_u.value = (x) [L586] EXPR gf_u.word [L586] (ix) = gf_u.word [L589] ix &= 0x7fffffff [L590] COND FALSE !(ix <= 0x3f490fda) [L593] COND TRUE !((ix) < 0x7f800000L) [L594] return x - x; [L594] return x - x; [L623] RET, EXPR tan_float(x) [L623] float res = tan_float(x); [L626] EXPR res == -0.0f && __signbit_float(res) == 1 [L626] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L627] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 271 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 354 SDtfs, 14 SDslu, 277 SDs, 0 SdLazy, 411 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s 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=271occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 2329 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...