/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_0250b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:41:11,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:41:11,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:41:11,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:41:11,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:41:11,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:41:11,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:41:11,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:41:11,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:41:11,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:41:11,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:41:11,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:41:11,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:41:11,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:41:11,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:41:11,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:41:11,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:41:11,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:41:11,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:41:11,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:41:11,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:41:11,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:41:11,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:41:11,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:41:11,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:41:11,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:41:11,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:41:11,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:41:11,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:41:11,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:41:11,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:41:11,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:41:11,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:41:11,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:41:11,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:41:11,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:41:11,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:41:11,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:41:11,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:41:11,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:41:11,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:41:11,512 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 19:41:11,559 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:41:11,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:41:11,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:41:11,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:41:11,563 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:41:11,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:41:11,564 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:41:11,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:41:11,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:41:11,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:41:11,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:41:11,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:41:11,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:41:11,565 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:41:11,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:41:11,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:41:11,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:41:11,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:41:11,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:41:11,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:41:11,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:41:11,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:41:11,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:41:11,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:41:11,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:41:11,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:41:11,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:41:11,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:41:11,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:41:11,570 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:41:11,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:41:12,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:41:12,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:41:12,012 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:41:12,013 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:41:12,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0250b.c [2020-10-27 19:41:12,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98be81937/a113d86b392d4d2d862e4d14aede94d5/FLAG3e4db76e5 [2020-10-27 19:41:12,784 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:41:12,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0250b.c [2020-10-27 19:41:12,797 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98be81937/a113d86b392d4d2d862e4d14aede94d5/FLAG3e4db76e5 [2020-10-27 19:41:13,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/98be81937/a113d86b392d4d2d862e4d14aede94d5 [2020-10-27 19:41:13,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:41:13,134 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:41:13,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:41:13,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:41:13,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:41:13,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:41:13" (1/1) ... [2020-10-27 19:41:13,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782ecb9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:13, skipping insertion in model container [2020-10-27 19:41:13,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:41:13" (1/1) ... [2020-10-27 19:41:13,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:41:13,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:41:13,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:41:13,507 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:41:13,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:41:13,672 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:41:13,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:13 WrapperNode [2020-10-27 19:41:13,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:41:13,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:41:13,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:41:13,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:41:13,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:13" (1/1) ... [2020-10-27 19:41:13,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:13" (1/1) ... [2020-10-27 19:41:13,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:13" (1/1) ... [2020-10-27 19:41:13,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:13" (1/1) ... [2020-10-27 19:41:13,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:13" (1/1) ... [2020-10-27 19:41:13,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:13" (1/1) ... [2020-10-27 19:41:13,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:13" (1/1) ... [2020-10-27 19:41:13,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:41:13,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:41:13,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:41:13,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:41:13,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:13" (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 19:41:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:41:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:41:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:41:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-27 19:41:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2020-10-27 19:41:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 19:41:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asin [2020-10-27 19:41:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:41:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:41:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:41:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:41:13,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:41:13,955 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-27 19:41:13,955 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2020-10-27 19:41:13,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:41:13,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:41:13,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:41:13,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:41:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:41:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 19:41:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asin [2020-10-27 19:41:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:41:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:41:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:41:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:41:14,706 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:41:14,706 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-27 19:41:14,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:41:14 BoogieIcfgContainer [2020-10-27 19:41:14,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:41:14,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:41:14,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:41:14,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:41:14,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:41:13" (1/3) ... [2020-10-27 19:41:14,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455de6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:41:14, skipping insertion in model container [2020-10-27 19:41:14,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:13" (2/3) ... [2020-10-27 19:41:14,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455de6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:41:14, skipping insertion in model container [2020-10-27 19:41:14,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:41:14" (3/3) ... [2020-10-27 19:41:14,718 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0250b.c [2020-10-27 19:41:14,730 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:41:14,735 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:41:14,748 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:41:14,777 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:41:14,777 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:41:14,777 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:41:14,777 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:41:14,777 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:41:14,777 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:41:14,778 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:41:14,778 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:41:14,797 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-10-27 19:41:14,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-27 19:41:14,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:41:14,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:41:14,805 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:41:14,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:41:14,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1940181478, now seen corresponding path program 1 times [2020-10-27 19:41:14,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:41:14,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787621164] [2020-10-27 19:41:14,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:41:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:41:15,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:41:15,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:41:15,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:41:15,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-27 19:41:15,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:41:15,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-10-27 19:41:15,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:41:15,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:41:15,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 19:41:15,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:41:15,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-27 19:41:15,604 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-27 19:41:15,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:41:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:41:15,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:41:15,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:41:15,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:41:15,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:41:15,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 19:41:15,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:41:15,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:41:15,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:41:15,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:41:15,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:41:15,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:41:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:41:15,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:41:15,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:41:15,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:41:15,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:41:15,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:41:15,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 19:41:15,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:41:15,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:41:15,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 19:41:15,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:41:15,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 19:41:15,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 19:41:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:41:15,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:41:15,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:41:15,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:41:15,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:41:15,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 19:41:15,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:41:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:41:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:41:15,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:41:15,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:41:15,739 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 19:41:15,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1787621164] [2020-10-27 19:41:15,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:41:15,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:41:15,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865295387] [2020-10-27 19:41:15,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:41:15,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:41:15,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:41:15,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:41:15,770 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 4 states. [2020-10-27 19:41:15,962 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 19:41:16,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:41:16,392 INFO L93 Difference]: Finished difference Result 181 states and 274 transitions. [2020-10-27 19:41:16,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:41:16,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-27 19:41:16,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:41:16,405 INFO L225 Difference]: With dead ends: 181 [2020-10-27 19:41:16,405 INFO L226 Difference]: Without dead ends: 89 [2020-10-27 19:41:16,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:41:16,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-27 19:41:16,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-10-27 19:41:16,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-27 19:41:16,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 115 transitions. [2020-10-27 19:41:16,466 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 115 transitions. Word has length 24 [2020-10-27 19:41:16,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:41:16,467 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 115 transitions. [2020-10-27 19:41:16,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:41:16,467 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 115 transitions. [2020-10-27 19:41:16,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-27 19:41:16,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:41:16,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:41:16,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:41:16,469 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:41:16,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:41:16,470 INFO L82 PathProgramCache]: Analyzing trace with hash 2101069526, now seen corresponding path program 1 times [2020-10-27 19:41:16,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:41:16,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661789070] [2020-10-27 19:41:16,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:41:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:41:16,508 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:41:16,508 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:41:16,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:41:16,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:41:16 BoogieIcfgContainer [2020-10-27 19:41:16,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:41:16,536 INFO L168 Benchmark]: Toolchain (without parser) took 3405.76 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 105.0 MB in the beginning and 154.1 MB in the end (delta: -49.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:41:16,537 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:41:16,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.32 ms. Allocated memory is still 151.0 MB. Free memory was 104.6 MB in the beginning and 132.9 MB in the end (delta: -28.3 MB). Peak memory consumption was 21.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:41:16,538 INFO L168 Benchmark]: Boogie Preprocessor took 184.81 ms. Allocated memory is still 151.0 MB. Free memory was 132.9 MB in the beginning and 130.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:41:16,539 INFO L168 Benchmark]: RCFGBuilder took 848.66 ms. Allocated memory is still 151.0 MB. Free memory was 130.0 MB in the beginning and 90.5 MB in the end (delta: 39.5 MB). Peak memory consumption was 38.8 MB. Max. memory is 8.0 GB. [2020-10-27 19:41:16,540 INFO L168 Benchmark]: TraceAbstraction took 1823.54 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 90.1 MB in the beginning and 154.1 MB in the end (delta: -64.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:41:16,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 537.32 ms. Allocated memory is still 151.0 MB. Free memory was 104.6 MB in the beginning and 132.9 MB in the end (delta: -28.3 MB). Peak memory consumption was 21.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 184.81 ms. Allocated memory is still 151.0 MB. Free memory was 132.9 MB in the beginning and 130.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 848.66 ms. Allocated memory is still 151.0 MB. Free memory was 130.0 MB in the beginning and 90.5 MB in the end (delta: 39.5 MB). Peak memory consumption was 38.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1823.54 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 90.1 MB in the beginning and 154.1 MB in the end (delta: -64.0 MB). There was no memory consumed. 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 someUnaryDOUBLEoperation at line 154, overapproximation of someBinaryArithmeticDOUBLEoperation at line 189, overapproximation of bitwiseAnd at line 172, overapproximation of someBinaryDOUBLEComparisonOperation at line 19. Possible FailurePath: [L21] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L148-L162] static const double one_asin = 1.00000000000000000000e+00, huge_asin = 1.000e+300, pio2_hi_asin = 1.57079632679489655800e+00, pio2_lo_asin = 6.12323399573676603587e-17, pio4_hi_asin = 7.85398163397448278999e-01, pS0_asin = 1.66666666666666657415e-01, pS1_asin = -3.25565818622400915405e-01, pS2_asin = 2.01212532134862925881e-01, pS3_asin = -4.00555345006794114027e-02, pS4_asin = 7.91534994289814532176e-04, pS5_asin = 3.47933107596021167570e-05, qS1_asin = -2.40339491173441421878e+00, qS2_asin = 2.02094576023350569471e+00, qS3_asin = -6.88283971605453293030e-01, qS4_asin = 7.70381505559019352791e-02; [L240] double x = -1.0 / 0.0; [L241] CALL, EXPR __ieee754_asin(x) [L165] double t, w, p, q, c, r, s; [L166] __int32_t hx, ix; [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] ix = hx & 0x7fffffff [L173] COND FALSE !(ix >= 0x3ff00000) [L184] COND TRUE ix < 0x3fe00000 [L185] COND FALSE !(ix < 0x3e400000) [L189] t = x * x [L190-L193] p = t * (pS0_asin + t * (pS1_asin + t * (pS2_asin + t * (pS3_asin + t * (pS4_asin + t * pS5_asin))))) [L194-L195] q = one_asin + t * (qS1_asin + t * (qS2_asin + t * (qS3_asin + t * qS4_asin))) [L196] w = p / q [L197] return x + x * w; [L241] RET, EXPR __ieee754_asin(x) [L241] double res = __ieee754_asin(x); [L244] CALL, EXPR isnan_double(res) [L19] return x != x; [L244] RET, EXPR isnan_double(res) [L244] COND TRUE !isnan_double(res) [L245] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0250b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 96 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: 115 SDtfs, 14 SDslu, 100 SDs, 0 SdLazy, 114 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred 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, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 2668 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...