/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_0680a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:42:20,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:42:20,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:42:20,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:42:20,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:42:20,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:42:20,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:42:20,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:42:20,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:42:20,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:42:20,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:42:20,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:42:20,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:42:20,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:42:20,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:42:20,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:42:20,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:42:20,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:42:20,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:42:20,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:42:20,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:42:20,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:42:20,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:42:20,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:42:20,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:42:20,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:42:20,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:42:20,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:42:20,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:42:20,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:42:20,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:42:20,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:42:20,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:42:20,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:42:20,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:42:20,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:42:20,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:42:20,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:42:20,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:42:20,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:42:20,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:42:20,082 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 19:42:20,132 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:42:20,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:42:20,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:42:20,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:42:20,137 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:42:20,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:42:20,139 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:42:20,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:42:20,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:42:20,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:42:20,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:42:20,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:42:20,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:42:20,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:42:20,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:42:20,141 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:42:20,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:42:20,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:42:20,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:42:20,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:42:20,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:42:20,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:42:20,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:42:20,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:42:20,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:42:20,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:42:20,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:42:20,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:42:20,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:42:20,146 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:42:20,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:42:20,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:42:20,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:42:20,634 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:42:20,634 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:42:20,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0680a.c [2020-10-27 19:42:20,729 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec4336ce9/bd94b995d9154b1f911d06c954a9dff2/FLAG4949cc04f [2020-10-27 19:42:21,477 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:42:21,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0680a.c [2020-10-27 19:42:21,491 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec4336ce9/bd94b995d9154b1f911d06c954a9dff2/FLAG4949cc04f [2020-10-27 19:42:21,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec4336ce9/bd94b995d9154b1f911d06c954a9dff2 [2020-10-27 19:42:21,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:42:21,844 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:42:21,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:21,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:42:21,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:42:21,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:21" (1/1) ... [2020-10-27 19:42:21,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31371569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:21, skipping insertion in model container [2020-10-27 19:42:21,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:21" (1/1) ... [2020-10-27 19:42:21,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:42:21,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:42:22,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:22,164 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:42:22,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:22,263 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:42:22,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:22 WrapperNode [2020-10-27 19:42:22,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:22,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:42:22,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:42:22,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:42:22,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:22" (1/1) ... [2020-10-27 19:42:22,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:22" (1/1) ... [2020-10-27 19:42:22,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:22" (1/1) ... [2020-10-27 19:42:22,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:22" (1/1) ... [2020-10-27 19:42:22,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:22" (1/1) ... [2020-10-27 19:42:22,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:22" (1/1) ... [2020-10-27 19:42:22,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:22" (1/1) ... [2020-10-27 19:42:22,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:42:22,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:42:22,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:42:22,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:42:22,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:22" (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 19:42:22,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:42:22,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:42:22,454 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:42:22,454 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 19:42:22,454 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 19:42:22,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 19:42:22,454 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:42:22,454 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:42:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:42:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:42:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:42:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:42:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 19:42:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:42:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:42:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:42:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:42:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:42:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 19:42:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 19:42:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:42:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:42:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:42:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:42:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:42:23,422 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:42:23,423 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 19:42:23,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:23 BoogieIcfgContainer [2020-10-27 19:42:23,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:42:23,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:42:23,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:42:23,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:42:23,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:42:21" (1/3) ... [2020-10-27 19:42:23,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d6a9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:23, skipping insertion in model container [2020-10-27 19:42:23,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:22" (2/3) ... [2020-10-27 19:42:23,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d6a9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:23, skipping insertion in model container [2020-10-27 19:42:23,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:23" (3/3) ... [2020-10-27 19:42:23,438 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680a.c [2020-10-27 19:42:23,453 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:42:23,459 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:42:23,475 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:42:23,518 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:42:23,518 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:42:23,518 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:42:23,518 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:42:23,518 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:42:23,518 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:42:23,519 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:42:23,519 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:42:23,547 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-10-27 19:42:23,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 19:42:23,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:23,558 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 19:42:23,558 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:23,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:23,568 INFO L82 PathProgramCache]: Analyzing trace with hash -7339331, now seen corresponding path program 1 times [2020-10-27 19:42:23,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:23,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970305297] [2020-10-27 19:42:23,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:23,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:23,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:24,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:24,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 19:42:24,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:24,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-27 19:42:24,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 19:42:24,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:24,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:42:24,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:42:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:24,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:24,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:24,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:42:24,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:24,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 19:42:24,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:42:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:24,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:24,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:42:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:24,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:24,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:24,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:24,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:42:24,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:24,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 19:42:24,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:42:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:24,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:24,353 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 19:42:24,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970305297] [2020-10-27 19:42:24,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:42:24,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:42:24,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968285516] [2020-10-27 19:42:24,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:42:24,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:42:24,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:42:24,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:42:24,380 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-10-27 19:42:24,506 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 19:42:24,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:42:24,923 INFO L93 Difference]: Finished difference Result 199 states and 316 transitions. [2020-10-27 19:42:24,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:42:24,925 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-27 19:42:24,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:42:24,937 INFO L225 Difference]: With dead ends: 199 [2020-10-27 19:42:24,937 INFO L226 Difference]: Without dead ends: 98 [2020-10-27 19:42:24,942 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 19:42:24,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-27 19:42:25,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-27 19:42:25,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-27 19:42:25,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2020-10-27 19:42:25,039 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2020-10-27 19:42:25,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:42:25,039 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2020-10-27 19:42:25,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:42:25,040 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2020-10-27 19:42:25,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 19:42:25,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:25,043 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 19:42:25,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:42:25,044 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:25,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:25,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1887591124, now seen corresponding path program 1 times [2020-10-27 19:42:25,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:25,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96605855] [2020-10-27 19:42:25,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:42:25,162 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:42:25,163 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:42:25,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:42:25,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:42:25 BoogieIcfgContainer [2020-10-27 19:42:25,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:42:25,198 INFO L168 Benchmark]: Toolchain (without parser) took 3356.79 ms. Allocated memory is still 151.0 MB. Free memory was 127.6 MB in the beginning and 74.1 MB in the end (delta: 53.4 MB). Peak memory consumption was 54.9 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:25,200 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 100.8 MB in the beginning and 100.7 MB in the end (delta: 73.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:42:25,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.14 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 112.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:25,209 INFO L168 Benchmark]: Boogie Preprocessor took 114.63 ms. Allocated memory is still 151.0 MB. Free memory was 112.4 MB in the beginning and 109.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:25,210 INFO L168 Benchmark]: RCFGBuilder took 1045.09 ms. Allocated memory is still 151.0 MB. Free memory was 109.4 MB in the beginning and 97.1 MB in the end (delta: 12.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:25,212 INFO L168 Benchmark]: TraceAbstraction took 1765.21 ms. Allocated memory is still 151.0 MB. Free memory was 96.7 MB in the beginning and 74.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:25,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 100.8 MB in the beginning and 100.7 MB in the end (delta: 73.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 415.14 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 112.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 114.63 ms. Allocated memory is still 151.0 MB. Free memory was 112.4 MB in the beginning and 109.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1045.09 ms. Allocated memory is still 151.0 MB. Free memory was 109.4 MB in the beginning and 97.1 MB in the end (delta: 12.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1765.21 ms. Allocated memory is still 151.0 MB. Free memory was 96.7 MB in the beginning and 74.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.9 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 258. 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 = -0.0; [L256] 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; [L256] RET, EXPR __ieee754_atan2(y, x) [L256] double res = __ieee754_atan2(y, x); [L258] COND TRUE res != -pi [L259] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0680a.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: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, 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, 0.5s 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...