/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:10:53,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:10:53,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:10:53,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:10:53,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:10:53,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:10:53,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:10:53,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:10:53,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:10:53,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:10:53,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:10:53,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:10:53,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:10:53,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:10:53,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:10:53,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:10:53,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:10:53,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:10:53,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:10:53,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:10:53,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:10:53,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:10:53,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:10:53,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:10:53,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 16:10:53,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 16:10:53,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 16:10:53,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 16:10:53,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 16:10:53,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-04 16:10:53,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:10:53,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:10:53,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:10:53,542 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:10:53,562 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:10:53,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:10:53,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:10:53,564 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:10:53,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:10:53,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:10:53,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:10:53,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:10:53,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:10:53,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:10:53,565 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:10:53,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:10:53,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:10:53,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:10:53,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:10:53,567 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:10:53,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:10:53,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:10:53,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:10:53,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:10:53,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:10:53,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:10:53,568 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:10:53,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:10:53,991 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:10:53,995 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:10:53,996 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:10:53,997 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:10:53,998 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2020-09-04 16:10:54,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07f8335cf/d359c5c3f4534732a92de939563a3270/FLAG9549ec521 [2020-09-04 16:10:54,594 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:10:54,595 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2020-09-04 16:10:54,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07f8335cf/d359c5c3f4534732a92de939563a3270/FLAG9549ec521 [2020-09-04 16:10:54,931 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07f8335cf/d359c5c3f4534732a92de939563a3270 [2020-09-04 16:10:54,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:10:54,948 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:10:54,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:10:54,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:10:54,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:10:54,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:10:54" (1/1) ... [2020-09-04 16:10:54,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d5a492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:54, skipping insertion in model container [2020-09-04 16:10:54,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:10:54" (1/1) ... [2020-09-04 16:10:54,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:10:54,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:10:55,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:10:55,250 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:10:55,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:10:55,311 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:10:55,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:55 WrapperNode [2020-09-04 16:10:55,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:10:55,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:10:55,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:10:55,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:10:55,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:55" (1/1) ... [2020-09-04 16:10:55,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:55" (1/1) ... [2020-09-04 16:10:55,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:55" (1/1) ... [2020-09-04 16:10:55,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:55" (1/1) ... [2020-09-04 16:10:55,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:55" (1/1) ... [2020-09-04 16:10:55,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:55" (1/1) ... [2020-09-04 16:10:55,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:55" (1/1) ... [2020-09-04 16:10:55,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:10:55,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:10:55,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:10:55,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:10:55,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:55" (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 [2020-09-04 16:10:55,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:10:55,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:10:55,536 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-04 16:10:55,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-09-04 16:10:55,536 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-09-04 16:10:55,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-09-04 16:10:55,537 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:10:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:10:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-04 16:10:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-04 16:10:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-09-04 16:10:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 16:10:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 16:10:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:10:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:10:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-09-04 16:10:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-09-04 16:10:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:10:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:10:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:10:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:10:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 16:10:55,947 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:10:55,948 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-04 16:10:55,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:10:55 BoogieIcfgContainer [2020-09-04 16:10:55,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:10:55,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:10:55,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:10:55,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:10:55,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:10:54" (1/3) ... [2020-09-04 16:10:55,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b0e7cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:10:55, skipping insertion in model container [2020-09-04 16:10:55,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:55" (2/3) ... [2020-09-04 16:10:55,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b0e7cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:10:55, skipping insertion in model container [2020-09-04 16:10:55,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:10:55" (3/3) ... [2020-09-04 16:10:55,963 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232b.c [2020-09-04 16:10:55,975 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:10:55,985 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:10:56,008 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:10:56,037 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:10:56,037 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:10:56,037 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:10:56,037 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:10:56,037 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:10:56,038 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:10:56,038 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:10:56,038 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:10:56,058 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-09-04 16:10:56,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-04 16:10:56,073 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:10:56,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:10:56,075 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:10:56,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:10:56,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1987914920, now seen corresponding path program 1 times [2020-09-04 16:10:56,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:10:56,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694357845] [2020-09-04 16:10:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:10:56,173 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:10:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:56,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:10:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:56,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:10:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:56,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:10:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:56,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:10:56,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694357845] [2020-09-04 16:10:56,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:10:56,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 16:10:56,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957763101] [2020-09-04 16:10:56,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 16:10:56,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:10:56,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 16:10:56,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:10:56,499 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 4 states. [2020-09-04 16:10:56,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:10:56,800 INFO L93 Difference]: Finished difference Result 176 states and 204 transitions. [2020-09-04 16:10:56,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 16:10:56,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-09-04 16:10:56,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:10:56,815 INFO L225 Difference]: With dead ends: 176 [2020-09-04 16:10:56,816 INFO L226 Difference]: Without dead ends: 87 [2020-09-04 16:10:56,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:10:56,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-09-04 16:10:56,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-09-04 16:10:56,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-04 16:10:56,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2020-09-04 16:10:56,881 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 35 [2020-09-04 16:10:56,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:10:56,882 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2020-09-04 16:10:56,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 16:10:56,882 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2020-09-04 16:10:56,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-04 16:10:56,886 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:10:56,886 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:10:56,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:10:56,887 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:10:56,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:10:56,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1530124146, now seen corresponding path program 1 times [2020-09-04 16:10:56,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:10:56,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417143501] [2020-09-04 16:10:56,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:10:56,891 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:10:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:56,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:10:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:57,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:10:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:57,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:10:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:57,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:10:57,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417143501] [2020-09-04 16:10:57,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:10:57,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:10:57,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986987249] [2020-09-04 16:10:57,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:10:57,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:10:57,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:10:57,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:10:57,147 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 6 states. [2020-09-04 16:10:57,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:10:57,383 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2020-09-04 16:10:57,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:10:57,384 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-09-04 16:10:57,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:10:57,389 INFO L225 Difference]: With dead ends: 123 [2020-09-04 16:10:57,389 INFO L226 Difference]: Without dead ends: 92 [2020-09-04 16:10:57,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:10:57,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-04 16:10:57,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2020-09-04 16:10:57,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-04 16:10:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-09-04 16:10:57,412 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 49 [2020-09-04 16:10:57,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:10:57,413 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-09-04 16:10:57,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:10:57,413 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-09-04 16:10:57,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-04 16:10:57,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:10:57,415 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, 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, 1, 1] [2020-09-04 16:10:57,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:10:57,416 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:10:57,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:10:57,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1091693362, now seen corresponding path program 1 times [2020-09-04 16:10:57,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:10:57,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567137576] [2020-09-04 16:10:57,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:10:57,419 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:10:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:57,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:10:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:57,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:10:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:57,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:10:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:57,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:10:57,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567137576] [2020-09-04 16:10:57,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:10:57,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:10:57,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460605091] [2020-09-04 16:10:57,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:10:57,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:10:57,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:10:57,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:10:57,664 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand 6 states. [2020-09-04 16:10:57,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:10:57,888 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2020-09-04 16:10:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:10:57,889 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-04 16:10:57,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:10:57,891 INFO L225 Difference]: With dead ends: 127 [2020-09-04 16:10:57,891 INFO L226 Difference]: Without dead ends: 96 [2020-09-04 16:10:57,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:10:57,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-09-04 16:10:57,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2020-09-04 16:10:57,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-04 16:10:57,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-09-04 16:10:57,908 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 52 [2020-09-04 16:10:57,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:10:57,909 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-09-04 16:10:57,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:10:57,909 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-09-04 16:10:57,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-04 16:10:57,911 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:10:57,911 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, 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, 1, 1] [2020-09-04 16:10:57,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:10:57,912 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:10:57,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:10:57,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1804168050, now seen corresponding path program 1 times [2020-09-04 16:10:57,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:10:57,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860781408] [2020-09-04 16:10:57,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:10:57,915 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:10:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:10:57,948 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:10:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:10:57,990 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:10:58,035 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 16:10:58,036 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 16:10:58,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 16:10:58,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:10:58 BoogieIcfgContainer [2020-09-04 16:10:58,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:10:58,073 INFO L168 Benchmark]: Toolchain (without parser) took 3122.94 ms. Allocated memory was 147.3 MB in the beginning and 232.8 MB in the end (delta: 85.5 MB). Free memory was 103.0 MB in the beginning and 102.6 MB in the end (delta: 437.7 kB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:10:58,075 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 121.6 MB in the beginning and 121.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-04 16:10:58,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.11 ms. Allocated memory is still 147.3 MB. Free memory was 103.0 MB in the beginning and 91.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:10:58,078 INFO L168 Benchmark]: Boogie Preprocessor took 135.81 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 91.3 MB in the beginning and 180.9 MB in the end (delta: -89.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:10:58,079 INFO L168 Benchmark]: RCFGBuilder took 504.70 ms. Allocated memory is still 204.5 MB. Free memory was 180.9 MB in the beginning and 156.6 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-09-04 16:10:58,086 INFO L168 Benchmark]: TraceAbstraction took 2113.72 ms. Allocated memory was 204.5 MB in the beginning and 232.8 MB in the end (delta: 28.3 MB). Free memory was 155.7 MB in the beginning and 102.6 MB in the end (delta: 53.2 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. [2020-09-04 16:10:58,096 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 121.6 MB in the beginning and 121.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 363.11 ms. Allocated memory is still 147.3 MB. Free memory was 103.0 MB in the beginning and 91.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.81 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 91.3 MB in the beginning and 180.9 MB in the end (delta: -89.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 504.70 ms. Allocated memory is still 204.5 MB. Free memory was 180.9 MB in the beginning and 156.6 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2113.72 ms. Allocated memory was 204.5 MB in the beginning and 232.8 MB in the end (delta: 28.3 MB). Free memory was 155.7 MB in the beginning and 102.6 MB in the end (delta: 53.2 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someUnaryDOUBLEoperation at line 74. Possible FailurePath: [L74] double x = -0.0; [L75] double y = 0.0; [L76] CALL, EXPR fmin_double(x, y) [L46] CALL, EXPR __fpclassify_double(x) [L19] __uint32_t msw, lsw; [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (msw) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (lsw) = ew_u.parts.lsw [L28-L29] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L31-L32] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L34-L35] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L38-L39] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L42] return 0; [L46] RET, EXPR __fpclassify_double(x) [L46] COND TRUE __fpclassify_double(x) == 0 [L47] return y; [L76] RET, EXPR fmin_double(x, y) [L76] double res = fmin_double(x, y); [L79] EXPR res == -0.0 && __signbit_double(res) == 1 [L79] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L80] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 285 SDtfs, 59 SDslu, 523 SDs, 0 SdLazy, 377 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...