/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_1271b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:19:42,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:19:42,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:19:42,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:19:42,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:19:42,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:19:42,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:19:42,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:19:42,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:19:42,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:19:42,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:19:42,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:19:42,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:19:42,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:19:42,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:19:42,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:19:42,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:19:42,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:19:42,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:19:42,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:19:42,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:19:42,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:19:42,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:19:42,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:19:42,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:19:42,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:19:42,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:19:42,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:19:42,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:19:42,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:19:42,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:19:42,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:19:42,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:19:42,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:19:42,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:19:42,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:19:42,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:19:42,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:19:42,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:19:42,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:19:42,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:19:42,900 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 23:19:42,944 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:19:42,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:19:42,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:19:42,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:19:42,947 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:19:42,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:19:42,947 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:19:42,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:19:42,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:19:42,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:19:42,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:19:42,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:19:42,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:19:42,950 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:19:42,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:19:42,950 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:19:42,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:19:42,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:19:42,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:19:42,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:19:42,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:19:42,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:19:42,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:19:42,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:19:42,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:19:42,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:19:42,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:19:42,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:19:42,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:19:42,953 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 23:19:43,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:19:43,295 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:19:43,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:19:43,299 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:19:43,299 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:19:43,300 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1271b.c [2020-10-14 23:19:43,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c726838e/a8a5e3ab0b6f4a2c87c11ab505108e63/FLAGb1e78cc8f [2020-10-14 23:19:43,867 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:19:43,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_1271b.c [2020-10-14 23:19:43,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c726838e/a8a5e3ab0b6f4a2c87c11ab505108e63/FLAGb1e78cc8f [2020-10-14 23:19:44,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c726838e/a8a5e3ab0b6f4a2c87c11ab505108e63 [2020-10-14 23:19:44,210 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:19:44,212 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:19:44,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:19:44,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:19:44,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:19:44,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:19:44" (1/1) ... [2020-10-14 23:19:44,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc4fd3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:44, skipping insertion in model container [2020-10-14 23:19:44,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:19:44" (1/1) ... [2020-10-14 23:19:44,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:19:44,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:19:44,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:19:44,561 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:19:44,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:19:44,721 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:19:44,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:44 WrapperNode [2020-10-14 23:19:44,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:19:44,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:19:44,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:19:44,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:19:44,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:44" (1/1) ... [2020-10-14 23:19:44,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:44" (1/1) ... [2020-10-14 23:19:44,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:44" (1/1) ... [2020-10-14 23:19:44,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:44" (1/1) ... [2020-10-14 23:19:44,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:44" (1/1) ... [2020-10-14 23:19:44,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:44" (1/1) ... [2020-10-14 23:19:44,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:44" (1/1) ... [2020-10-14 23:19:44,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:19:44,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:19:44,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:19:44,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:19:44,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:44" (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 23:19:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:19:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:19:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2020-10-14 23:19:44,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypotf [2020-10-14 23:19:44,857 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-14 23:19:44,857 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2020-10-14 23:19:44,857 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:19:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:19:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-14 23:19:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2020-10-14 23:19:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 23:19:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-14 23:19:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 23:19:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 23:19:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 23:19:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-14 23:19:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypotf [2020-10-14 23:19:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-14 23:19:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2020-10-14 23:19:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:19:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:19:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:19:45,488 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:19:45,489 INFO L295 CfgBuilder]: Removed 34 assume(true) statements. [2020-10-14 23:19:45,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:19:45 BoogieIcfgContainer [2020-10-14 23:19:45,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:19:45,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:19:45,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:19:45,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:19:45,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:19:44" (1/3) ... [2020-10-14 23:19:45,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767510c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:19:45, skipping insertion in model container [2020-10-14 23:19:45,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:44" (2/3) ... [2020-10-14 23:19:45,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767510c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:19:45, skipping insertion in model container [2020-10-14 23:19:45,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:19:45" (3/3) ... [2020-10-14 23:19:45,503 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271b.c [2020-10-14 23:19:45,514 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:19:45,523 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 23:19:45,538 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 23:19:45,565 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:19:45,565 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:19:45,565 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:19:45,565 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:19:45,566 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:19:45,566 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:19:45,566 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:19:45,566 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:19:45,590 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states. [2020-10-14 23:19:45,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-14 23:19:45,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:19:45,600 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] [2020-10-14 23:19:45,601 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:19:45,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:19:45,607 INFO L82 PathProgramCache]: Analyzing trace with hash 860825893, now seen corresponding path program 1 times [2020-10-14 23:19:45,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:19:45,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841970279] [2020-10-14 23:19:45,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:19:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:19:45,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:19:45,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:19:45,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:19:45,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:19:45,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:19:45,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:19:45,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 23:19:45,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 23:19:45,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-14 23:19:45,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:19:45,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:19:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:19:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 23:19:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:19:45,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 23:19:46,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:19:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:19:46,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:19:46,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:19:46,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:19:46,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:19:46,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 23:19:46,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:19:46,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:19:46,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:19:46,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:19:46,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:19:46,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:19:46,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:19:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:19:46,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:19:46,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:19:46,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:19:46,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:19:46,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:19:46,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 23:19:46,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:19:46,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:19:46,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:19:46,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 23:19:46,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:19:46,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:19:46,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-14 23:19:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:19:46,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:19:46,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:19:46,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:19:46,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:19:46,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:19:46,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:19:46,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 23:19:46,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 23:19:46,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:19:46,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:19:46,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:19:46,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 23:19:46,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:19:46,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:19:46,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 23:19:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:19:46,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:19:46,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:19:46,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:19:46,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:19:46,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 23:19:46,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:19:46,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:19:46,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:19:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:19:46,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:19:46,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:19:46,241 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 23:19:46,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841970279] [2020-10-14 23:19:46,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:19:46,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 23:19:46,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525795602] [2020-10-14 23:19:46,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 23:19:46,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:19:46,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 23:19:46,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:19:46,270 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 4 states. [2020-10-14 23:19:46,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:19:46,646 INFO L93 Difference]: Finished difference Result 210 states and 329 transitions. [2020-10-14 23:19:46,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 23:19:46,648 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-14 23:19:46,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:19:46,661 INFO L225 Difference]: With dead ends: 210 [2020-10-14 23:19:46,661 INFO L226 Difference]: Without dead ends: 104 [2020-10-14 23:19:46,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:19:46,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-14 23:19:46,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-14 23:19:46,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-14 23:19:46,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2020-10-14 23:19:46,726 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 34 [2020-10-14 23:19:46,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:19:46,726 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2020-10-14 23:19:46,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 23:19:46,727 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2020-10-14 23:19:46,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-14 23:19:46,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:19:46,729 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] [2020-10-14 23:19:46,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:19:46,729 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:19:46,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:19:46,730 INFO L82 PathProgramCache]: Analyzing trace with hash 68622012, now seen corresponding path program 1 times [2020-10-14 23:19:46,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:19:46,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56931856] [2020-10-14 23:19:46,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:19:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 23:19:46,820 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 23:19:46,820 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 23:19:46,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:19:46,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:19:46 BoogieIcfgContainer [2020-10-14 23:19:46,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 23:19:46,860 INFO L168 Benchmark]: Toolchain (without parser) took 2647.98 ms. Allocated memory was 148.4 MB in the beginning and 232.8 MB in the end (delta: 84.4 MB). Free memory was 105.1 MB in the beginning and 132.9 MB in the end (delta: -27.8 MB). Peak memory consumption was 56.6 MB. Max. memory is 7.1 GB. [2020-10-14 23:19:46,861 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-14 23:19:46,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 506.45 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 104.7 MB in the beginning and 180.0 MB in the end (delta: -75.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-10-14 23:19:46,863 INFO L168 Benchmark]: Boogie Preprocessor took 69.28 ms. Allocated memory is still 204.5 MB. Free memory was 180.0 MB in the beginning and 176.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-10-14 23:19:46,864 INFO L168 Benchmark]: RCFGBuilder took 702.33 ms. Allocated memory is still 204.5 MB. Free memory was 176.2 MB in the beginning and 131.7 MB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. [2020-10-14 23:19:46,865 INFO L168 Benchmark]: TraceAbstraction took 1362.03 ms. Allocated memory was 204.5 MB in the beginning and 232.8 MB in the end (delta: 28.3 MB). Free memory was 131.7 MB in the beginning and 132.9 MB in the end (delta: -1.2 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-10-14 23:19:46,869 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 506.45 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 104.7 MB in the beginning and 180.0 MB in the end (delta: -75.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.28 ms. Allocated memory is still 204.5 MB. Free memory was 180.0 MB in the beginning and 176.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 702.33 ms. Allocated memory is still 204.5 MB. Free memory was 176.2 MB in the beginning and 131.7 MB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1362.03 ms. Allocated memory was 204.5 MB in the beginning and 232.8 MB in the end (delta: 28.3 MB). Free memory was 131.7 MB in the beginning and 132.9 MB in the end (delta: -1.2 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 239]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 211, overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 96. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L232] float x = __VERIFIER_nondet_float(); [L233] float y = 0.0f / 0.0f; [L235] CALL isfinite_float(x) [L215] __int32_t ix; [L217] ieee_float_shape_type gf_u; [L218] gf_u.value = (x) [L219] EXPR gf_u.word [L219] (ix) = gf_u.word [L221] ix &= 0x7fffffff [L222] return (((ix) < 0x7f800000L)); [L235] RET isfinite_float(x) [L235] COND TRUE isfinite_float(x) [L236] CALL, EXPR __ieee754_hypotf(x, y) [L82] float a = x, b = y, t1, t2, y1, y2, w; [L83] __int32_t j, k, ha, hb; [L86] ieee_float_shape_type gf_u; [L87] gf_u.value = (x) [L88] EXPR gf_u.word [L88] (ha) = gf_u.word [L90] ha &= 0x7fffffffL [L92] ieee_float_shape_type gf_u; [L93] gf_u.value = (y) [L94] EXPR gf_u.word [L94] (hb) = gf_u.word [L96] hb &= 0x7fffffffL [L97] COND TRUE hb > ha [L98] a = y [L99] b = x [L100] j = ha [L101] ha = hb [L102] hb = j [L108] ieee_float_shape_type sf_u; [L109] sf_u.word = (ha) [L110] EXPR sf_u.value [L110] (a) = sf_u.value [L113] ieee_float_shape_type sf_u; [L114] sf_u.word = (hb) [L115] EXPR sf_u.value [L115] (b) = sf_u.value [L117] COND TRUE (ha - hb) > 0xf000000L [L118] return a + b; [L236] RET, EXPR __ieee754_hypotf(x, y) [L236] float res = __ieee754_hypotf(x, y); [L238] CALL, EXPR isnan_float(res) [L211] return x != x; [L238] RET, EXPR isnan_float(res) [L238] COND TRUE !isnan_float(res) [L239] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 109 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 110 SDtfs, 105 SDslu, 5 SDs, 0 SdLazy, 141 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred 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, 0.5s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 2376 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...