/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=SHALLOWEST --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_0480.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:01:05,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:01:05,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:01:05,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:01:05,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:01:05,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:01:05,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:01:05,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:01:05,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:01:05,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:01:05,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:01:05,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:01:05,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:01:05,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:01:05,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:01:05,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:01:05,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:01:05,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:01:05,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:01:05,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:01:05,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:01:05,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:01:05,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:01:05,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:01:05,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:01:05,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:01:05,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:01:05,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:01:05,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:01:05,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:01:05,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:01:05,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:01:05,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:01:05,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:01:05,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:01:05,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:01:05,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:01:05,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:01:05,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:01:05,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:01:05,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:01:05,565 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 01:01:05,615 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:01:05,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:01:05,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:01:05,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:01:05,619 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:01:05,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:01:05,620 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:01:05,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:01:05,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:01:05,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:01:05,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:01:05,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:01:05,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:01:05,622 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:01:05,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:01:05,623 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:01:05,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:01:05,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:01:05,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:01:05,624 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:01:05,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:01:05,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:01:05,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:01:05,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:01:05,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:01:05,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:01:05,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:01:05,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:01:05,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:01:05,626 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:01:06,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:01:06,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:01:06,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:01:06,079 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:01:06,080 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:01:06,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0480.c [2020-10-27 01:01:06,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e51a36fba/ef5d70f4581247f8afb8e64db94c794d/FLAGd10db8fbd [2020-10-27 01:01:06,913 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:01:06,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0480.c [2020-10-27 01:01:06,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e51a36fba/ef5d70f4581247f8afb8e64db94c794d/FLAGd10db8fbd [2020-10-27 01:01:07,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e51a36fba/ef5d70f4581247f8afb8e64db94c794d [2020-10-27 01:01:07,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:01:07,277 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:01:07,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:07,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:01:07,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:01:07,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:07" (1/1) ... [2020-10-27 01:01:07,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522b80ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:07, skipping insertion in model container [2020-10-27 01:01:07,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:07" (1/1) ... [2020-10-27 01:01:07,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:01:07,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:01:07,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:07,678 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:01:07,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:07,785 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:01:07,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:07 WrapperNode [2020-10-27 01:01:07,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:07,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:01:07,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:01:07,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:01:07,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:07" (1/1) ... [2020-10-27 01:01:07,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:07" (1/1) ... [2020-10-27 01:01:07,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:07" (1/1) ... [2020-10-27 01:01:07,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:07" (1/1) ... [2020-10-27 01:01:07,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:07" (1/1) ... [2020-10-27 01:01:07,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:07" (1/1) ... [2020-10-27 01:01:07,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:07" (1/1) ... [2020-10-27 01:01:07,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:01:07,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:01:07,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:01:07,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:01:07,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:07" (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 01:01:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:01:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:01:07,957 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:01:07,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-10-27 01:01:07,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2020-10-27 01:01:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acos [2020-10-27 01:01:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:01:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:01:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:01:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:01:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:01:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-10-27 01:01:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:01:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:01:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:01:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2020-10-27 01:01:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:01:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:01:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acos [2020-10-27 01:01:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:01:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:01:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:01:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:01:08,657 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:01:08,657 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 01:01:08,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:08 BoogieIcfgContainer [2020-10-27 01:01:08,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:01:08,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:01:08,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:01:08,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:01:08,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:01:07" (1/3) ... [2020-10-27 01:01:08,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d7de99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:08, skipping insertion in model container [2020-10-27 01:01:08,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:07" (2/3) ... [2020-10-27 01:01:08,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d7de99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:08, skipping insertion in model container [2020-10-27 01:01:08,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:08" (3/3) ... [2020-10-27 01:01:08,669 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0480.c [2020-10-27 01:01:08,681 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:01:08,687 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:01:08,699 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:01:08,728 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:01:08,728 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:01:08,728 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:01:08,728 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:01:08,728 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:01:08,728 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:01:08,729 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:01:08,729 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:01:08,748 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states. [2020-10-27 01:01:08,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 01:01:08,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:08,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:01:08,757 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:08,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:08,763 INFO L82 PathProgramCache]: Analyzing trace with hash 885878537, now seen corresponding path program 1 times [2020-10-27 01:01:08,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:08,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26183248] [2020-10-27 01:01:08,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:08,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:09,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:09,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:09,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 01:01:09,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:09,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-27 01:01:09,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:09,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:09,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:01:09,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:09,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:01:09,376 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 01:01:09,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:01:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:09,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:09,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:09,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:01:09,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:09,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 01:01:09,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:09,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:09,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:01:09,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:09,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:09,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:01:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:09,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:09,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:09,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:09,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 01:01:09,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:09,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 01:01:09,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:01:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:09,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:09,504 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 01:01:09,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26183248] [2020-10-27 01:01:09,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:01:09,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:01:09,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970238635] [2020-10-27 01:01:09,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:01:09,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:01:09,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:01:09,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:01:09,532 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 4 states. [2020-10-27 01:01:09,680 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-27 01:01:10,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:01:10,003 INFO L93 Difference]: Finished difference Result 171 states and 263 transitions. [2020-10-27 01:01:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:01:10,004 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-27 01:01:10,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:01:10,015 INFO L225 Difference]: With dead ends: 171 [2020-10-27 01:01:10,015 INFO L226 Difference]: Without dead ends: 84 [2020-10-27 01:01:10,020 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 01:01:10,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-27 01:01:10,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-27 01:01:10,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-27 01:01:10,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2020-10-27 01:01:10,077 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 111 transitions. Word has length 20 [2020-10-27 01:01:10,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:01:10,077 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 111 transitions. [2020-10-27 01:01:10,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:01:10,078 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 111 transitions. [2020-10-27 01:01:10,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 01:01:10,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:10,080 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 01:01:10,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:01:10,081 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:10,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:10,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1794707956, now seen corresponding path program 1 times [2020-10-27 01:01:10,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:10,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833561853] [2020-10-27 01:01:10,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:01:10,133 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:01:10,134 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:01:10,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:01:10,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:01:10 BoogieIcfgContainer [2020-10-27 01:01:10,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:01:10,168 INFO L168 Benchmark]: Toolchain (without parser) took 2894.76 ms. Allocated memory is still 158.3 MB. Free memory was 132.9 MB in the beginning and 88.1 MB in the end (delta: 44.7 MB). Peak memory consumption was 45.4 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:10,169 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 158.3 MB. Free memory was 130.7 MB in the beginning and 130.6 MB in the end (delta: 118.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:01:10,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.22 ms. Allocated memory is still 158.3 MB. Free memory was 132.2 MB in the beginning and 117.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:10,172 INFO L168 Benchmark]: Boogie Preprocessor took 76.80 ms. Allocated memory is still 158.3 MB. Free memory was 117.6 MB in the beginning and 114.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:10,180 INFO L168 Benchmark]: RCFGBuilder took 794.45 ms. Allocated memory is still 158.3 MB. Free memory was 114.9 MB in the beginning and 112.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:10,182 INFO L168 Benchmark]: TraceAbstraction took 1502.99 ms. Allocated memory is still 158.3 MB. Free memory was 112.3 MB in the beginning and 88.1 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:10,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 158.3 MB. Free memory was 130.7 MB in the beginning and 130.6 MB in the end (delta: 118.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 505.22 ms. Allocated memory is still 158.3 MB. Free memory was 132.2 MB in the beginning and 117.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 76.80 ms. Allocated memory is still 158.3 MB. Free memory was 117.6 MB in the beginning and 114.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 794.45 ms. Allocated memory is still 158.3 MB. Free memory was 114.9 MB in the beginning and 112.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1502.99 ms. Allocated memory is still 158.3 MB. Free memory was 112.3 MB in the beginning and 88.1 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 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 someUnaryDOUBLEoperation at line 147, overapproximation of bitwiseAnd at line 165, overapproximation of someBinaryArithmeticDOUBLEoperation at line 183, overapproximation of someBinaryDOUBLEComparisonOperation at line 238. Possible FailurePath: [L30] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L142-L155] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L234] double x = 1.0; [L235] CALL, EXPR __ieee754_acos(x) [L158] double z, p, q, r, w, s, c, df; [L159] __int32_t hx, ix; [L161] ieee_double_shape_type gh_u; [L162] gh_u.value = (x) [L163] EXPR gh_u.parts.msw [L163] (hx) = gh_u.parts.msw [L165] ix = hx & 0x7fffffff [L166] COND FALSE !(ix >= 0x3ff00000) [L181] COND TRUE ix < 0x3fe00000 [L182] COND TRUE ix <= 0x3c600000 [L183] return pio2_hi_acos + pio2_lo_acos; [L235] RET, EXPR __ieee754_acos(x) [L235] double res = __ieee754_acos(x); [L238] EXPR res == 0.0 && __signbit_double(res) == 0 [L238] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L239] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0480.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 10 SDslu, 101 SDs, 0 SdLazy, 109 SolverSat, 12 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=91occurred 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, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 2071 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...