/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_0663a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:42:14,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:42:14,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:42:14,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:42:14,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:42:14,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:42:14,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:42:14,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:42:14,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:42:14,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:42:14,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:42:14,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:42:14,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:42:14,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:42:14,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:42:14,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:42:14,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:42:14,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:42:14,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:42:14,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:42:14,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:42:14,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:42:14,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:42:14,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:42:14,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:42:14,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:42:14,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:42:14,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:42:14,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:42:14,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:42:14,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:42:14,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:42:14,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:42:14,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:42:14,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:42:14,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:42:14,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:42:14,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:42:14,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:42:14,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:42:14,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:42:14,335 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 19:42:14,416 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:42:14,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:42:14,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:42:14,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:42:14,421 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:42:14,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:42:14,422 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:42:14,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:42:14,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:42:14,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:42:14,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:42:14,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:42:14,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:42:14,424 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:42:14,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:42:14,424 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:42:14,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:42:14,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:42:14,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:42:14,425 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:42:14,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:42:14,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:42:14,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:42:14,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:42:14,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:42:14,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:42:14,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:42:14,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:42:14,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:42:14,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:42:14,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:42:14,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:42:14,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:42:14,933 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:42:14,933 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:42:14,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0663a.c [2020-10-27 19:42:15,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d930a3ca/5749a2759f724450a355551ab7474638/FLAGcc5e2290f [2020-10-27 19:42:15,606 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:42:15,607 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0663a.c [2020-10-27 19:42:15,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d930a3ca/5749a2759f724450a355551ab7474638/FLAGcc5e2290f [2020-10-27 19:42:15,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0d930a3ca/5749a2759f724450a355551ab7474638 [2020-10-27 19:42:15,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:42:15,954 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:42:15,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:15,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:42:15,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:42:15,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:15" (1/1) ... [2020-10-27 19:42:15,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193b93ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:15, skipping insertion in model container [2020-10-27 19:42:15,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:15" (1/1) ... [2020-10-27 19:42:15,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:42:16,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:42:16,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:16,280 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:42:16,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:16,401 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:42:16,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:16 WrapperNode [2020-10-27 19:42:16,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:16,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:42:16,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:42:16,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:42:16,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:16" (1/1) ... [2020-10-27 19:42:16,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:16" (1/1) ... [2020-10-27 19:42:16,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:16" (1/1) ... [2020-10-27 19:42:16,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:16" (1/1) ... [2020-10-27 19:42:16,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:16" (1/1) ... [2020-10-27 19:42:16,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:16" (1/1) ... [2020-10-27 19:42:16,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:16" (1/1) ... [2020-10-27 19:42:16,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:42:16,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:42:16,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:42:16,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:42:16,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:16" (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 19:42:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:42:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:42:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:42:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 19:42:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 19:42:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 19:42:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:42:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:42:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:42:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:42:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:42:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:42:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 19:42:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:42:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:42:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:42:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:42:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:42:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 19:42:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 19:42:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:42:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:42:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:42:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:42:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:42:17,294 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:42:17,295 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 19:42:17,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:17 BoogieIcfgContainer [2020-10-27 19:42:17,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:42:17,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:42:17,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:42:17,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:42:17,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:42:15" (1/3) ... [2020-10-27 19:42:17,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b6b863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:17, skipping insertion in model container [2020-10-27 19:42:17,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:16" (2/3) ... [2020-10-27 19:42:17,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b6b863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:17, skipping insertion in model container [2020-10-27 19:42:17,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:17" (3/3) ... [2020-10-27 19:42:17,307 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663a.c [2020-10-27 19:42:17,320 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:42:17,326 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:42:17,342 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:42:17,372 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:42:17,372 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:42:17,373 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:42:17,373 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:42:17,373 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:42:17,373 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:42:17,373 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:42:17,373 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:42:17,393 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-27 19:42:17,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 19:42:17,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:17,401 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] [2020-10-27 19:42:17,402 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:17,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:17,409 INFO L82 PathProgramCache]: Analyzing trace with hash 199039736, now seen corresponding path program 1 times [2020-10-27 19:42:17,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:17,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335513399] [2020-10-27 19:42:17,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:17,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:17,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:17,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:17,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 19:42:17,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:17,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-27 19:42:17,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:17,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:17,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 19:42:17,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:17,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:42:18,163 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 19:42:18,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:42:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:18,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:18,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:18,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:42:18,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:18,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 19:42:18,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:18,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:18,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:42:18,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:18,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:18,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 19:42:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:18,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:18,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:18,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:18,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:42:18,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:18,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 19:42:18,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:18,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:18,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:42:18,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:18,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:18,264 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 19:42:18,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335513399] [2020-10-27 19:42:18,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:42:18,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:42:18,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615767738] [2020-10-27 19:42:18,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:42:18,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:42:18,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:42:18,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:42:18,291 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 4 states. [2020-10-27 19:42:18,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:42:18,755 INFO L93 Difference]: Finished difference Result 205 states and 323 transitions. [2020-10-27 19:42:18,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:42:18,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-27 19:42:18,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:42:18,768 INFO L225 Difference]: With dead ends: 205 [2020-10-27 19:42:18,768 INFO L226 Difference]: Without dead ends: 99 [2020-10-27 19:42:18,773 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 19:42:18,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-27 19:42:18,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-10-27 19:42:18,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-27 19:42:18,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2020-10-27 19:42:18,831 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 20 [2020-10-27 19:42:18,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:42:18,831 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2020-10-27 19:42:18,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:42:18,831 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2020-10-27 19:42:18,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-27 19:42:18,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:18,833 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] [2020-10-27 19:42:18,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:42:18,833 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:18,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:18,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1527493777, now seen corresponding path program 1 times [2020-10-27 19:42:18,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:18,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371254723] [2020-10-27 19:42:18,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:42:18,895 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:42:18,896 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:42:18,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:42:18,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:42:18 BoogieIcfgContainer [2020-10-27 19:42:18,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:42:18,921 INFO L168 Benchmark]: Toolchain (without parser) took 2972.66 ms. Allocated memory is still 165.7 MB. Free memory was 123.0 MB in the beginning and 58.5 MB in the end (delta: 64.5 MB). Peak memory consumption was 65.4 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:18,922 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 165.7 MB. Free memory is still 140.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:42:18,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.83 ms. Allocated memory is still 165.7 MB. Free memory was 122.4 MB in the beginning and 148.6 MB in the end (delta: -26.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:18,924 INFO L168 Benchmark]: Boogie Preprocessor took 82.34 ms. Allocated memory is still 165.7 MB. Free memory was 148.6 MB in the beginning and 145.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:18,925 INFO L168 Benchmark]: RCFGBuilder took 789.79 ms. Allocated memory is still 165.7 MB. Free memory was 145.5 MB in the beginning and 101.9 MB in the end (delta: 43.5 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:18,926 INFO L168 Benchmark]: TraceAbstraction took 1621.26 ms. Allocated memory is still 165.7 MB. Free memory was 101.4 MB in the beginning and 58.5 MB in the end (delta: 42.9 MB). Peak memory consumption was 44.5 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:18,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 165.7 MB. Free memory is still 140.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 462.83 ms. Allocated memory is still 165.7 MB. Free memory was 122.4 MB in the beginning and 148.6 MB in the end (delta: -26.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 82.34 ms. Allocated memory is still 165.7 MB. Free memory was 148.6 MB in the beginning and 145.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 789.79 ms. Allocated memory is still 165.7 MB. Free memory was 145.5 MB in the beginning and 101.9 MB in the end (delta: 43.5 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1621.26 ms. Allocated memory is still 165.7 MB. Free memory was 101.4 MB in the beginning and 58.5 MB in the end (delta: 42.9 MB). Peak memory consumption was 44.5 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 253, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 261. 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; [L253] double x = -0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y > 0.0 [L258] 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; [L258] RET, EXPR __ieee754_atan2(y, x) [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != pi_o_2 [L262] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0663a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 140 SDtfs, 18 SDslu, 124 SDs, 0 SdLazy, 138 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=107occurred 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, 0.6s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1957 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...