/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_0683a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:06:35,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:06:35,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:06:35,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:06:35,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:06:35,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:06:35,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:06:35,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:06:35,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:06:35,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:06:35,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:06:35,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:06:35,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:06:35,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:06:35,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:06:35,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:06:35,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:06:35,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:06:35,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:06:35,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:06:35,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:06:35,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:06:35,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:06:35,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:06:35,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:06:35,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:06:35,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:06:35,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:06:35,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:06:35,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:06:35,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:06:35,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:06:35,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:06:35,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:06:35,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:06:35,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:06:35,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:06:35,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:06:35,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:06:35,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:06:35,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:06:35,430 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 09:06:35,486 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:06:35,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:06:35,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:06:35,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:06:35,492 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:06:35,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:06:35,492 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:06:35,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:06:35,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:06:35,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:06:35,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:06:35,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:06:35,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:06:35,495 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:06:35,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:06:35,495 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:06:35,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:06:35,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:06:35,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:06:35,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:06:35,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:06:35,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:06:35,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:06:35,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:06:35,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:06:35,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:06:35,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:06:35,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:06:35,498 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:06:35,499 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:06:35,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:06:35,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:06:35,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:06:35,997 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:06:35,997 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:06:35,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0683a.c [2020-10-29 09:06:36,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6894a33a/278113bcae884ce0b46e94da278883e2/FLAGe7d343c75 [2020-10-29 09:06:36,833 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:06:36,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0683a.c [2020-10-29 09:06:36,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6894a33a/278113bcae884ce0b46e94da278883e2/FLAGe7d343c75 [2020-10-29 09:06:37,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6894a33a/278113bcae884ce0b46e94da278883e2 [2020-10-29 09:06:37,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:06:37,197 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:06:37,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:06:37,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:06:37,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:06:37,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:06:37" (1/1) ... [2020-10-29 09:06:37,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9b327c 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 09:06:37,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:06:37" (1/1) ... [2020-10-29 09:06:37,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:06:37,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:06:37,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:06:37,594 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:06:37,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:06:37,748 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:06:37,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:37 WrapperNode [2020-10-29 09:06:37,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:06:37,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:06:37,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:06:37,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:06:37,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:37" (1/1) ... [2020-10-29 09:06:37,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:37" (1/1) ... [2020-10-29 09:06:37,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:37" (1/1) ... [2020-10-29 09:06:37,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:37" (1/1) ... [2020-10-29 09:06:37,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:37" (1/1) ... [2020-10-29 09:06:37,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:37" (1/1) ... [2020-10-29 09:06:37,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:37" (1/1) ... [2020-10-29 09:06:37,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:06:37,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:06:37,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:06:37,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:06:37,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:37" (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 09:06:38,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:06:38,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:06:38,001 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:06:38,001 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-29 09:06:38,001 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-29 09:06:38,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-29 09:06:38,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-29 09:06:38,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-29 09:06:38,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-10-29 09:06:38,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:06:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:06:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:06:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:06:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:06:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-29 09:06:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-29 09:06:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-29 09:06:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:06:38,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:06:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:06:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-29 09:06:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-29 09:06:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-29 09:06:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-29 09:06:38,004 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-29 09:06:38,005 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-10-29 09:06:38,005 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:06:38,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:06:38,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:06:38,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-29 09:06:38,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:06:38,890 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:06:38,891 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-10-29 09:06:38,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:06:38 BoogieIcfgContainer [2020-10-29 09:06:38,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:06:38,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:06:38,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:06:38,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:06:38,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:06:37" (1/3) ... [2020-10-29 09:06:38,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a517e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:06:38, skipping insertion in model container [2020-10-29 09:06:38,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:37" (2/3) ... [2020-10-29 09:06:38,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a517e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:06:38, skipping insertion in model container [2020-10-29 09:06:38,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:06:38" (3/3) ... [2020-10-29 09:06:38,907 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c [2020-10-29 09:06:38,919 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:06:38,924 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:06:38,938 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:06:38,966 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:06:38,966 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:06:38,966 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:06:38,966 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:06:38,967 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:06:38,967 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:06:38,967 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:06:38,967 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:06:38,989 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2020-10-29 09:06:38,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-29 09:06:38,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:06:38,997 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] [2020-10-29 09:06:38,998 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:06:39,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:06:39,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1563664449, now seen corresponding path program 1 times [2020-10-29 09:06:39,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:06:39,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556506901] [2020-10-29 09:06:39,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:06:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:39,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:39,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:39,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:39,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:40,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 09:06:40,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 09:06:40,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 937 [2020-10-29 09:06:40,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:40,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:06:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 09:06:40,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:06:40,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:06:40,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:06:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:40,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:40,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:06:40,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:06:40,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 09:06:40,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:40,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:06:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:40,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:06:40,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:06:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:40,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:40,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 09:06:40,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:06:40,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 09:06:40,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:40,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:40,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:40,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:06:40,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:40,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:06:40,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 09:06:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:40,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:40,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:40,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 09:06:40,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 09:06:40,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 09:06:40,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:40,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:40,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:40,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 09:06:40,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:40,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:06:40,399 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 09:06:40,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556506901] [2020-10-29 09:06:40,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:06:40,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 09:06:40,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103403152] [2020-10-29 09:06:40,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 09:06:40,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:06:40,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 09:06:40,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:06:40,433 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 5 states. [2020-10-29 09:06:40,600 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 09:06:41,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:06:41,237 INFO L93 Difference]: Finished difference Result 256 states and 395 transitions. [2020-10-29 09:06:41,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 09:06:41,242 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-29 09:06:41,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:06:41,260 INFO L225 Difference]: With dead ends: 256 [2020-10-29 09:06:41,262 INFO L226 Difference]: Without dead ends: 125 [2020-10-29 09:06:41,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 09:06:41,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-29 09:06:41,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-29 09:06:41,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-29 09:06:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 165 transitions. [2020-10-29 09:06:41,349 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 165 transitions. Word has length 29 [2020-10-29 09:06:41,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:06:41,353 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 165 transitions. [2020-10-29 09:06:41,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 09:06:41,353 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 165 transitions. [2020-10-29 09:06:41,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-29 09:06:41,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:06:41,355 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, 1] [2020-10-29 09:06:41,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:06:41,355 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:06:41,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:06:41,356 INFO L82 PathProgramCache]: Analyzing trace with hash -665724313, now seen corresponding path program 1 times [2020-10-29 09:06:41,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:06:41,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760517767] [2020-10-29 09:06:41,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:06:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 09:06:41,453 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 09:06:41,453 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:06:41,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:06:41,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:06:41 BoogieIcfgContainer [2020-10-29 09:06:41,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:06:41,483 INFO L168 Benchmark]: Toolchain (without parser) took 4292.72 ms. Allocated memory was 157.3 MB in the beginning and 216.0 MB in the end (delta: 58.7 MB). Free memory was 133.0 MB in the beginning and 102.1 MB in the end (delta: 30.8 MB). Peak memory consumption was 89.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:41,484 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 157.3 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:06:41,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.23 ms. Allocated memory is still 157.3 MB. Free memory was 132.2 MB in the beginning and 116.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:41,486 INFO L168 Benchmark]: Boogie Preprocessor took 153.59 ms. Allocated memory is still 157.3 MB. Free memory was 116.5 MB in the beginning and 113.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:41,487 INFO L168 Benchmark]: RCFGBuilder took 991.09 ms. Allocated memory is still 157.3 MB. Free memory was 113.2 MB in the beginning and 95.6 MB in the end (delta: 17.6 MB). Peak memory consumption was 19.2 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:41,488 INFO L168 Benchmark]: TraceAbstraction took 2583.64 ms. Allocated memory was 157.3 MB in the beginning and 216.0 MB in the end (delta: 58.7 MB). Free memory was 95.0 MB in the beginning and 102.1 MB in the end (delta: -7.1 MB). Peak memory consumption was 51.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:41,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 157.3 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 547.23 ms. Allocated memory is still 157.3 MB. Free memory was 132.2 MB in the beginning and 116.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 153.59 ms. Allocated memory is still 157.3 MB. Free memory was 116.5 MB in the beginning and 113.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 991.09 ms. Allocated memory is still 157.3 MB. Free memory was 113.2 MB in the beginning and 95.6 MB in the end (delta: 17.6 MB). Peak memory consumption was 19.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2583.64 ms. Allocated memory was 157.3 MB in the beginning and 216.0 MB in the end (delta: 58.7 MB). Free memory was 95.0 MB in the beginning and 102.1 MB in the end (delta: -7.1 MB). Peak memory consumption was 51.6 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 299. 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; [L291] double x = 1.0 / 0.0; [L292] double y = __VERIFIER_nondet_double(); [L294] CALL, EXPR isinf_double(x) [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); [L294] RET, EXPR isinf_double(x) [L294] EXPR isinf_double(x) && isfinite_double(y) [L294] CALL, EXPR isfinite_double(y) [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); [L294] RET, EXPR isfinite_double(y) [L294] EXPR isinf_double(x) && isfinite_double(y) [L294] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0 [L296] 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; [L296] RET, EXPR __ieee754_atan2(y, x) [L296] double res = __ieee754_atan2(y, x); [L299] EXPR res == -0.0 && __signbit_double(res) == 1 [L299] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L300] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0683a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 133 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 164 SDtfs, 16 SDslu, 300 SDs, 0 SdLazy, 185 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred 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, 1.2s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 3500 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...