/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=BIGGEST --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 -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0270a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:30:17,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:30:17,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:30:17,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:30:17,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:30:17,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:30:17,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:30:17,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:30:17,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:30:17,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:30:17,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:30:17,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:30:17,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:30:17,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:30:17,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:30:17,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:30:17,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:30:17,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:30:17,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:30:17,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:30:17,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:30:17,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:30:17,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:30:17,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:30:17,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:30:17,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:30:17,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:30:17,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:30:17,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:30:17,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:30:17,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:30:17,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:30:17,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:30:17,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:30:17,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:30:17,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:30:17,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:30:17,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:30:17,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:30:17,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:30:17,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:30:17,433 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 [2020-10-12 15:30:17,456 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:30:17,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:30:17,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:30:17,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:30:17,458 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:30:17,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:30:17,458 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:30:17,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:30:17,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:30:17,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:30:17,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:30:17,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:30:17,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:30:17,460 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:30:17,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:30:17,460 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:30:17,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:30:17,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:30:17,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:30:17,461 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:30:17,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:30:17,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:30:17,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:30:17,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:30:17,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:30:17,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:30:17,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:30:17,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:30:17,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:30:17,463 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:30:17,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:30:17,836 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:30:17,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:30:17,843 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:30:17,845 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:30:17,846 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0270a.c [2020-10-12 15:30:17,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27c99ba67/18fb215c9bac435b96efce0082b67bf4/FLAGeca45c5d5 [2020-10-12 15:30:18,395 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:30:18,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0270a.c [2020-10-12 15:30:18,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27c99ba67/18fb215c9bac435b96efce0082b67bf4/FLAGeca45c5d5 [2020-10-12 15:30:18,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27c99ba67/18fb215c9bac435b96efce0082b67bf4 [2020-10-12 15:30:18,743 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:30:18,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:30:18,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:30:18,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:30:18,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:30:18,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:30:18" (1/1) ... [2020-10-12 15:30:18,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28ade091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:18, skipping insertion in model container [2020-10-12 15:30:18,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:30:18" (1/1) ... [2020-10-12 15:30:18,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:30:18,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:30:19,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:30:19,138 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:30:19,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:30:19,356 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:30:19,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:19 WrapperNode [2020-10-12 15:30:19,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:30:19,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:30:19,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:30:19,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:30:19,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:19" (1/1) ... [2020-10-12 15:30:19,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:19" (1/1) ... [2020-10-12 15:30:19,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:19" (1/1) ... [2020-10-12 15:30:19,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:19" (1/1) ... [2020-10-12 15:30:19,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:19" (1/1) ... [2020-10-12 15:30:19,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:19" (1/1) ... [2020-10-12 15:30:19,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:19" (1/1) ... [2020-10-12 15:30:19,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:30:19,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:30:19,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:30:19,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:30:19,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:19" (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 [2020-10-12 15:30:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:30:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:30:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2020-10-12 15:30:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-12 15:30:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asin [2020-10-12 15:30:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:30:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:30:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2020-10-12 15:30:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 15:30:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-12 15:30:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 15:30:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:30:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 15:30:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-12 15:30:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-12 15:30:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asin [2020-10-12 15:30:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:30:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:30:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:30:20,231 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:30:20,231 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-12 15:30:20,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:30:20 BoogieIcfgContainer [2020-10-12 15:30:20,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:30:20,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:30:20,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:30:20,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:30:20,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:30:18" (1/3) ... [2020-10-12 15:30:20,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24dfee88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:30:20, skipping insertion in model container [2020-10-12 15:30:20,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:30:19" (2/3) ... [2020-10-12 15:30:20,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24dfee88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:30:20, skipping insertion in model container [2020-10-12 15:30:20,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:30:20" (3/3) ... [2020-10-12 15:30:20,247 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0270a.c [2020-10-12 15:30:20,259 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:30:20,268 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:30:20,297 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:30:20,357 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:30:20,358 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:30:20,358 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:30:20,358 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:30:20,359 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:30:20,359 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:30:20,359 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:30:20,359 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:30:20,397 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-10-12 15:30:20,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-12 15:30:20,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:30:20,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:30:20,410 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:30:20,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:30:20,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1665511405, now seen corresponding path program 1 times [2020-10-12 15:30:20,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:30:20,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077568475] [2020-10-12 15:30:20,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:30:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:30:20,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:30:20,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:30:20,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:30:20,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 15:30:20,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:30:20,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-12 15:30:20,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:30:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:30:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 15:30:20,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:30:20,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 15:30:20,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:30:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:30:20,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:30:20,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:30:20,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:30:20,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:30:20,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 15:30:20,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:30:20,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:30:20,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:30:20,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:30:20,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:30:20,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:30:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:30:20,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:30:20,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:30:21,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:30:21,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 15:30:21,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:30:21,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 15:30:21,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:30:21,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:30:21,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 15:30:21,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:30:21,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 15:30:21,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:30:21,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077568475] [2020-10-12 15:30:21,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:30:21,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 15:30:21,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491580673] [2020-10-12 15:30:21,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 15:30:21,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:30:21,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 15:30:21,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 15:30:21,082 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-10-12 15:30:21,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:30:21,544 INFO L93 Difference]: Finished difference Result 166 states and 258 transitions. [2020-10-12 15:30:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-12 15:30:21,546 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-12 15:30:21,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:30:21,557 INFO L225 Difference]: With dead ends: 166 [2020-10-12 15:30:21,558 INFO L226 Difference]: Without dead ends: 83 [2020-10-12 15:30:21,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:30:21,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-12 15:30:21,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-10-12 15:30:21,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-12 15:30:21,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 109 transitions. [2020-10-12 15:30:21,618 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 109 transitions. Word has length 18 [2020-10-12 15:30:21,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:30:21,619 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 109 transitions. [2020-10-12 15:30:21,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 15:30:21,619 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 109 transitions. [2020-10-12 15:30:21,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-12 15:30:21,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:30:21,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:30:21,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:30:21,621 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:30:21,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:30:21,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1458196420, now seen corresponding path program 1 times [2020-10-12 15:30:21,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:30:21,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052548729] [2020-10-12 15:30:21,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:30:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 15:30:21,658 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 15:30:21,658 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 15:30:21,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:30:21,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 03:30:21 BoogieIcfgContainer [2020-10-12 15:30:21,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 15:30:21,686 INFO L168 Benchmark]: Toolchain (without parser) took 2941.16 ms. Allocated memory was 142.6 MB in the beginning and 230.2 MB in the end (delta: 87.6 MB). Free memory was 101.1 MB in the beginning and 130.1 MB in the end (delta: -29.0 MB). Peak memory consumption was 58.6 MB. Max. memory is 7.1 GB. [2020-10-12 15:30:21,687 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 142.6 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 15:30:21,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.52 ms. Allocated memory was 142.6 MB in the beginning and 200.3 MB in the end (delta: 57.7 MB). Free memory was 100.9 MB in the beginning and 174.1 MB in the end (delta: -73.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-10-12 15:30:21,689 INFO L168 Benchmark]: Boogie Preprocessor took 88.71 ms. Allocated memory is still 200.3 MB. Free memory was 174.1 MB in the beginning and 171.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-12 15:30:21,690 INFO L168 Benchmark]: RCFGBuilder took 790.90 ms. Allocated memory is still 200.3 MB. Free memory was 171.3 MB in the beginning and 131.8 MB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. [2020-10-12 15:30:21,691 INFO L168 Benchmark]: TraceAbstraction took 1444.95 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 131.1 MB in the beginning and 130.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2020-10-12 15:30:21,695 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 142.6 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 611.52 ms. Allocated memory was 142.6 MB in the beginning and 200.3 MB in the end (delta: 57.7 MB). Free memory was 100.9 MB in the beginning and 174.1 MB in the end (delta: -73.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.71 ms. Allocated memory is still 200.3 MB. Free memory was 174.1 MB in the beginning and 171.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 790.90 ms. Allocated memory is still 200.3 MB. Free memory was 171.3 MB in the beginning and 131.8 MB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1444.95 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 131.1 MB in the beginning and 130.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 240]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 148, overapproximation of bitwiseAnd at line 166, overapproximation of someBinaryArithmeticDOUBLEoperation at line 183, overapproximation of someBinaryDOUBLEComparisonOperation at line 239. Possible FailurePath: [L16] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L142-L156] 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; [L235] double x = 0.0; [L236] CALL, EXPR __ieee754_asin(x) [L159] double t, w, p, q, c, r, s; [L160] __int32_t hx, ix; [L162] ieee_double_shape_type gh_u; [L163] gh_u.value = (x) [L164] EXPR gh_u.parts.msw [L164] (hx) = gh_u.parts.msw [L166] ix = hx & 0x7fffffff [L167] COND FALSE !(ix >= 0x3ff00000) [L178] COND TRUE ix < 0x3fe00000 [L179] COND FALSE !(ix < 0x3e400000) [L183] t = x * x [L184-L187] p = t * (pS0_asin + t * (pS1_asin + t * (pS2_asin + t * (pS3_asin + t * (pS4_asin + t * pS5_asin))))) [L188-L189] q = one_asin + t * (qS1_asin + t * (qS2_asin + t * (qS3_asin + t * qS4_asin))) [L190] w = p / q [L191] return x + x * w; [L236] RET, EXPR __ieee754_asin(x) [L236] double res = __ieee754_asin(x); [L239] COND TRUE res != x [L240] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 102 SDtfs, 97 SDslu, 5 SDs, 0 SdLazy, 115 SolverSat, 18 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 1513 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...