/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0686b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:42:39,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:42:39,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:42:39,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:42:39,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:42:39,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:42:39,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:42:39,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:42:39,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:42:39,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:42:39,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:42:39,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:42:39,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:42:39,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:42:39,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:42:39,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:42:39,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:42:39,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:42:39,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:42:39,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:42:39,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:42:39,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:42:39,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:42:39,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:42:39,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:42:39,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:42:39,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:42:39,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:42:39,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:42:39,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:42:39,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:42:39,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:42:39,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:42:39,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:42:39,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:42:39,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:42:39,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:42:39,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:42:39,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:42:39,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:42:39,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:42:39,342 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 19:42:39,396 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:42:39,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:42:39,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:42:39,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:42:39,402 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:42:39,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:42:39,403 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:42:39,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:42:39,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:42:39,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:42:39,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:42:39,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:42:39,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:42:39,405 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:42:39,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:42:39,406 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:42:39,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:42:39,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:42:39,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:42:39,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:42:39,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:42:39,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:42:39,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:42:39,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:42:39,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:42:39,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:42:39,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:42:39,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:42:39,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:42:39,409 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:42:39,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:42:39,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:42:39,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:42:39,898 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:42:39,899 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:42:39,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0686b.c [2020-10-27 19:42:39,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96ee206d4/fa2ba37567cf40c7978b04c813e275de/FLAG9b41127be [2020-10-27 19:42:40,558 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:42:40,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0686b.c [2020-10-27 19:42:40,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96ee206d4/fa2ba37567cf40c7978b04c813e275de/FLAG9b41127be [2020-10-27 19:42:40,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96ee206d4/fa2ba37567cf40c7978b04c813e275de [2020-10-27 19:42:40,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:42:40,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:42:40,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:40,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:42:40,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:42:40,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:40" (1/1) ... [2020-10-27 19:42:40,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d9fbcc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:40, skipping insertion in model container [2020-10-27 19:42:40,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:40" (1/1) ... [2020-10-27 19:42:40,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:42:40,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:42:41,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:41,303 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:42:41,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:41,431 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:42:41,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:41 WrapperNode [2020-10-27 19:42:41,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:41,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:42:41,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:42:41,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:42:41,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:41" (1/1) ... [2020-10-27 19:42:41,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:41" (1/1) ... [2020-10-27 19:42:41,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:41" (1/1) ... [2020-10-27 19:42:41,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:41" (1/1) ... [2020-10-27 19:42:41,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:41" (1/1) ... [2020-10-27 19:42:41,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:41" (1/1) ... [2020-10-27 19:42:41,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:41" (1/1) ... [2020-10-27 19:42:41,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:42:41,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:42:41,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:42:41,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:42:41,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:42:41,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:42:41,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:42:41,690 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:42:41,690 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 19:42:41,690 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 19:42:41,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 19:42:41,691 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:42:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:42:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:42:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:42:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:42:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:42:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 19:42:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:42:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:42:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:42:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:42:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:42:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 19:42:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 19:42:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:42:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:42:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:42:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:42:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:42:42,576 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:42:42,577 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 19:42:42,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:42 BoogieIcfgContainer [2020-10-27 19:42:42,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:42:42,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:42:42,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:42:42,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:42:42,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:42:40" (1/3) ... [2020-10-27 19:42:42,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfb51a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:42, skipping insertion in model container [2020-10-27 19:42:42,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:41" (2/3) ... [2020-10-27 19:42:42,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfb51a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:42, skipping insertion in model container [2020-10-27 19:42:42,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:42" (3/3) ... [2020-10-27 19:42:42,589 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686b.c [2020-10-27 19:42:42,602 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:42:42,608 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:42:42,623 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:42:42,676 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:42:42,685 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:42:42,685 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:42:42,686 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:42:42,686 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:42:42,686 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:42:42,686 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:42:42,687 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:42:42,722 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-10-27 19:42:42,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 19:42:42,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:42,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:42:42,750 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:42,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:42,769 INFO L82 PathProgramCache]: Analyzing trace with hash -7339331, now seen corresponding path program 1 times [2020-10-27 19:42:42,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:42,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410538334] [2020-10-27 19:42:42,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:43,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:43,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:43,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:43,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 19:42:43,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:43,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-10-27 19:42:43,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 19:42:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:43,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:42:43,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:42:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:43,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:43,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:43,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:42:43,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:43,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 19:42:43,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:42:43,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:43,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:43,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:42:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:43,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:43,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:43,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:43,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:42:43,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:43,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 19:42:43,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:43,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:43,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:42:43,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:43,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:43,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:42:43,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [410538334] [2020-10-27 19:42:43,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:42:43,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:42:43,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533656924] [2020-10-27 19:42:43,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:42:43,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:42:43,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:42:43,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:42:43,716 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-10-27 19:42:43,878 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 19:42:44,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:42:44,279 INFO L93 Difference]: Finished difference Result 199 states and 316 transitions. [2020-10-27 19:42:44,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:42:44,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-27 19:42:44,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:42:44,293 INFO L225 Difference]: With dead ends: 199 [2020-10-27 19:42:44,293 INFO L226 Difference]: Without dead ends: 98 [2020-10-27 19:42:44,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:42:44,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-27 19:42:44,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-27 19:42:44,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-27 19:42:44,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2020-10-27 19:42:44,358 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2020-10-27 19:42:44,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:42:44,359 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2020-10-27 19:42:44,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:42:44,359 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2020-10-27 19:42:44,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 19:42:44,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:44,360 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] [2020-10-27 19:42:44,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:42:44,361 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:44,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:44,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1887591124, now seen corresponding path program 1 times [2020-10-27 19:42:44,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:44,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320707474] [2020-10-27 19:42:44,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:42:44,422 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:42:44,423 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:42:44,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:42:44,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:42:44 BoogieIcfgContainer [2020-10-27 19:42:44,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:42:44,451 INFO L168 Benchmark]: Toolchain (without parser) took 3547.82 ms. Allocated memory is still 156.2 MB. Free memory was 131.3 MB in the beginning and 74.3 MB in the end (delta: 57.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:44,452 INFO L168 Benchmark]: CDTParser took 1.25 ms. Allocated memory is still 125.8 MB. Free memory is still 84.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:42:44,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.03 ms. Allocated memory is still 156.2 MB. Free memory was 130.7 MB in the beginning and 115.8 MB in the end (delta: 14.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:44,453 INFO L168 Benchmark]: Boogie Preprocessor took 143.36 ms. Allocated memory is still 156.2 MB. Free memory was 115.8 MB in the beginning and 112.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:44,454 INFO L168 Benchmark]: RCFGBuilder took 999.57 ms. Allocated memory is still 156.2 MB. Free memory was 112.8 MB in the beginning and 120.8 MB in the end (delta: -8.0 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:44,455 INFO L168 Benchmark]: TraceAbstraction took 1867.71 ms. Allocated memory is still 156.2 MB. Free memory was 120.3 MB in the beginning and 74.3 MB in the end (delta: 46.0 MB). Peak memory consumption was 47.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:44,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.25 ms. Allocated memory is still 125.8 MB. Free memory is still 84.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 525.03 ms. Allocated memory is still 156.2 MB. Free memory was 130.7 MB in the beginning and 115.8 MB in the end (delta: 14.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 143.36 ms. Allocated memory is still 156.2 MB. Free memory was 115.8 MB in the beginning and 112.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 999.57 ms. Allocated memory is still 156.2 MB. Free memory was 112.8 MB in the beginning and 120.8 MB in the end (delta: -8.0 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1867.71 ms. Allocated memory is still 156.2 MB. Free memory was 120.3 MB in the beginning and 74.3 MB in the end (delta: 46.0 MB). Peak memory consumption was 47.1 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 257. 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; [L252] double x = 1.0 / 0.0; [L253] double y = -1.0 / 0.0; [L255] 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; [L255] RET, EXPR __ieee754_atan2(y, x) [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != -pi_o_4 [L258] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0686b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 10 SDslu, 125 SDs, 0 SdLazy, 135 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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=105occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1836 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...