/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 21:36:35,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 21:36:35,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 21:36:35,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 21:36:35,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 21:36:35,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 21:36:35,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 21:36:35,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 21:36:35,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 21:36:35,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 21:36:35,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 21:36:35,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 21:36:35,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 21:36:35,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 21:36:35,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 21:36:35,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 21:36:35,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 21:36:35,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 21:36:35,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 21:36:35,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 21:36:35,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 21:36:35,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 21:36:35,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 21:36:35,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 21:36:35,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 21:36:35,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 21:36:35,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 21:36:35,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 21:36:35,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 21:36:35,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 21:36:35,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 21:36:35,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 21:36:35,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 21:36:35,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 21:36:35,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 21:36:35,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 21:36:35,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 21:36:35,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 21:36:35,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 21:36:35,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 21:36:35,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 21:36:35,515 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 21:36:35,527 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 21:36:35,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 21:36:35,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 21:36:35,529 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 21:36:35,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 21:36:35,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 21:36:35,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 21:36:35,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 21:36:35,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 21:36:35,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 21:36:35,531 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 21:36:35,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 21:36:35,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 21:36:35,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 21:36:35,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 21:36:35,532 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 21:36:35,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 21:36:35,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 21:36:35,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 21:36:35,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 21:36:35,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 21:36:35,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 21:36:35,533 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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: Use separate solver for trace checks -> true [2020-09-04 21:36:35,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 21:36:35,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 21:36:35,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 21:36:35,993 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 21:36:35,993 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 21:36:35,994 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c [2020-09-04 21:36:36,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aaf850f7f/500e79220318408485f7792cb01f500e/FLAG5473d1caa [2020-09-04 21:36:36,661 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 21:36:36,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c [2020-09-04 21:36:36,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aaf850f7f/500e79220318408485f7792cb01f500e/FLAG5473d1caa [2020-09-04 21:36:36,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aaf850f7f/500e79220318408485f7792cb01f500e [2020-09-04 21:36:36,990 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 21:36:36,994 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 21:36:36,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 21:36:36,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 21:36:37,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 21:36:37,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:36:36" (1/1) ... [2020-09-04 21:36:37,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78523b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:37, skipping insertion in model container [2020-09-04 21:36:37,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:36:36" (1/1) ... [2020-09-04 21:36:37,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 21:36:37,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 21:36:37,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:36:37,284 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 21:36:37,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:36:37,431 INFO L208 MainTranslator]: Completed translation [2020-09-04 21:36:37,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:37 WrapperNode [2020-09-04 21:36:37,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 21:36:37,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 21:36:37,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 21:36:37,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 21:36:37,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:37" (1/1) ... [2020-09-04 21:36:37,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:37" (1/1) ... [2020-09-04 21:36:37,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:37" (1/1) ... [2020-09-04 21:36:37,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:37" (1/1) ... [2020-09-04 21:36:37,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:37" (1/1) ... [2020-09-04 21:36:37,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:37" (1/1) ... [2020-09-04 21:36:37,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:37" (1/1) ... [2020-09-04 21:36:37,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 21:36:37,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 21:36:37,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 21:36:37,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 21:36:37,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:37" (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 21:36:37,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 21:36:37,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 21:36:37,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-09-04 21:36:37,580 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-09-04 21:36:37,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-09-04 21:36:37,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 21:36:37,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 21:36:37,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-04 21:36:37,582 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-09-04 21:36:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 21:36:37,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 21:36:37,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 21:36:37,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 21:36:37,590 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-09-04 21:36:37,590 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-09-04 21:36:37,590 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 21:36:37,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 21:36:37,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 21:36:37,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 21:36:37,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 21:36:38,067 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 21:36:38,067 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-04 21:36:38,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:36:38 BoogieIcfgContainer [2020-09-04 21:36:38,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 21:36:38,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 21:36:38,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 21:36:38,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 21:36:38,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 09:36:36" (1/3) ... [2020-09-04 21:36:38,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6057ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:36:38, skipping insertion in model container [2020-09-04 21:36:38,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:37" (2/3) ... [2020-09-04 21:36:38,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6057ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:36:38, skipping insertion in model container [2020-09-04 21:36:38,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:36:38" (3/3) ... [2020-09-04 21:36:38,083 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252b.c [2020-09-04 21:36:38,093 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 21:36:38,101 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 21:36:38,122 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 21:36:38,145 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 21:36:38,146 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 21:36:38,146 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 21:36:38,146 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 21:36:38,146 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 21:36:38,146 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 21:36:38,146 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 21:36:38,146 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 21:36:38,165 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-09-04 21:36:38,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-04 21:36:38,178 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:36:38,179 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 21:36:38,179 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:36:38,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:36:38,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1930633076, now seen corresponding path program 1 times [2020-09-04 21:36:38,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:36:38,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523124647] [2020-09-04 21:36:38,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:36:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:38,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:36:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:38,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 21:36:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:38,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 21:36:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:38,459 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 21:36:38,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523124647] [2020-09-04 21:36:38,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:36:38,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 21:36:38,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557812095] [2020-09-04 21:36:38,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 21:36:38,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:36:38,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 21:36:38,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 21:36:38,492 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 4 states. [2020-09-04 21:36:38,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:36:38,814 INFO L93 Difference]: Finished difference Result 176 states and 204 transitions. [2020-09-04 21:36:38,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 21:36:38,817 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-09-04 21:36:38,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:36:38,832 INFO L225 Difference]: With dead ends: 176 [2020-09-04 21:36:38,833 INFO L226 Difference]: Without dead ends: 87 [2020-09-04 21:36:38,839 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 21:36:38,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-09-04 21:36:38,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-09-04 21:36:38,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-04 21:36:38,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2020-09-04 21:36:38,908 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 35 [2020-09-04 21:36:38,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:36:38,909 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2020-09-04 21:36:38,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 21:36:38,910 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2020-09-04 21:36:38,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-04 21:36:38,913 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:36:38,913 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 21:36:38,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 21:36:38,914 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:36:38,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:36:38,915 INFO L82 PathProgramCache]: Analyzing trace with hash -330335414, now seen corresponding path program 1 times [2020-09-04 21:36:38,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:36:38,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257726735] [2020-09-04 21:36:38,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:36:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:39,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:36:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:39,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 21:36:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:39,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 21:36:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:39,181 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 21:36:39,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257726735] [2020-09-04 21:36:39,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:36:39,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 21:36:39,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942211010] [2020-09-04 21:36:39,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 21:36:39,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:36:39,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 21:36:39,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 21:36:39,186 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 6 states. [2020-09-04 21:36:39,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:36:39,450 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2020-09-04 21:36:39,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 21:36:39,451 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-09-04 21:36:39,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:36:39,456 INFO L225 Difference]: With dead ends: 123 [2020-09-04 21:36:39,456 INFO L226 Difference]: Without dead ends: 92 [2020-09-04 21:36:39,458 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 21:36:39,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-04 21:36:39,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2020-09-04 21:36:39,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-04 21:36:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-09-04 21:36:39,478 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 49 [2020-09-04 21:36:39,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:36:39,479 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-09-04 21:36:39,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 21:36:39,479 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-09-04 21:36:39,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-04 21:36:39,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:36:39,481 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 21:36:39,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 21:36:39,482 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:36:39,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:36:39,482 INFO L82 PathProgramCache]: Analyzing trace with hash -389367439, now seen corresponding path program 1 times [2020-09-04 21:36:39,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:36:39,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243988530] [2020-09-04 21:36:39,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:36:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:39,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:36:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:39,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 21:36:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:39,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 21:36:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:39,696 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 21:36:39,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243988530] [2020-09-04 21:36:39,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:36:39,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 21:36:39,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591071083] [2020-09-04 21:36:39,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 21:36:39,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:36:39,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 21:36:39,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 21:36:39,699 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand 6 states. [2020-09-04 21:36:39,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:36:39,928 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2020-09-04 21:36:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 21:36:39,929 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-04 21:36:39,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:36:39,931 INFO L225 Difference]: With dead ends: 127 [2020-09-04 21:36:39,931 INFO L226 Difference]: Without dead ends: 96 [2020-09-04 21:36:39,932 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 21:36:39,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-09-04 21:36:39,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2020-09-04 21:36:39,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-04 21:36:39,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-09-04 21:36:39,947 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 52 [2020-09-04 21:36:39,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:36:39,947 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-09-04 21:36:39,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 21:36:39,948 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-09-04 21:36:39,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-04 21:36:39,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:36:39,949 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 21:36:39,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 21:36:39,950 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:36:39,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:36:39,950 INFO L82 PathProgramCache]: Analyzing trace with hash 323107249, now seen corresponding path program 1 times [2020-09-04 21:36:39,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:36:39,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499078658] [2020-09-04 21:36:39,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:36:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:36:39,975 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:36:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:36:39,998 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:36:40,055 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 21:36:40,055 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 21:36:40,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 21:36:40,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 09:36:40 BoogieIcfgContainer [2020-09-04 21:36:40,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 21:36:40,138 INFO L168 Benchmark]: Toolchain (without parser) took 3141.14 ms. Allocated memory was 139.5 MB in the beginning and 235.9 MB in the end (delta: 96.5 MB). Free memory was 101.9 MB in the beginning and 109.4 MB in the end (delta: -7.4 MB). Peak memory consumption was 89.0 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:40,141 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 139.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 21:36:40,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.88 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 182.3 MB in the end (delta: -80.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:40,145 INFO L168 Benchmark]: Boogie Preprocessor took 64.58 ms. Allocated memory is still 203.9 MB. Free memory was 182.3 MB in the beginning and 180.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:40,147 INFO L168 Benchmark]: RCFGBuilder took 575.70 ms. Allocated memory is still 203.9 MB. Free memory was 180.0 MB in the beginning and 155.5 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:40,155 INFO L168 Benchmark]: TraceAbstraction took 2057.94 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 154.9 MB in the beginning and 109.4 MB in the end (delta: 45.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:40,167 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 139.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 434.88 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 182.3 MB in the end (delta: -80.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.58 ms. Allocated memory is still 203.9 MB. Free memory was 182.3 MB in the beginning and 180.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 575.70 ms. Allocated memory is still 203.9 MB. Free memory was 180.0 MB in the beginning and 155.5 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2057.94 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 154.9 MB in the beginning and 109.4 MB in the end (delta: 45.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 85]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 84, overapproximation of someUnaryDOUBLEoperation at line 80. Possible FailurePath: [L79] double x = 0.0; VAL [x=0] [L80] double y = -0.0; VAL [x=0] [L81] CALL, EXPR fmax_double(x, y) VAL [\old(x)=0, \old(y)=4294967299] [L52] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=0] [L24] __uint32_t msw, lsw; VAL [\old(x)=0, x=0] [L27] ieee_double_shape_type ew_u; VAL [\old(x)=0, ew_u={2:0}, x=0] [L28] ew_u.value = (x) VAL [\old(x)=0, ew_u={2:0}, x=0] [L29] EXPR ew_u.parts.msw VAL [\old(x)=0, ew_u={2:0}, ew_u.parts.msw=4293918721, x=0] [L29] (msw) = ew_u.parts.msw VAL [\old(x)=0, ew_u={2:0}, ew_u.parts.msw=4293918721, msw=4293918721, x=0] [L30] EXPR ew_u.parts.lsw VAL [\old(x)=0, ew_u={2:0}, ew_u.parts.lsw=4294967297, msw=4293918721, x=0] [L30] (lsw) = ew_u.parts.lsw VAL [\old(x)=0, ew_u={2:0}, ew_u.parts.lsw=4294967297, lsw=4294967297, msw=4293918721, x=0] [L33-L34] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=0, lsw=4294967297, msw=4293918721, x=0] [L36-L37] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=0, lsw=4294967297, msw=4293918721, x=0] [L39-L40] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=0, lsw=4294967297, msw=4293918721, x=0] [L43-L44] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) VAL [\old(x)=0, lsw=4294967297, msw=4293918721, x=0] [L47] return 0; VAL [\old(x)=0, \result=0, lsw=4294967297, msw=4293918721, x=0] [L52] RET, EXPR __fpclassify_double(x) VAL [\old(x)=0, \old(y)=4294967299, __fpclassify_double(x)=0, x=0, y=4294967299] [L52] COND TRUE __fpclassify_double(x) == 0 VAL [\old(x)=0, \old(y)=4294967299, __fpclassify_double(x)=0, x=0, y=4294967299] [L53] return y; VAL [\old(x)=0, \old(y)=4294967299, \result=4294967299, x=0, y=4294967299] [L81] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=4294967299, x=0, y=4294967299] [L81] double res = fmax_double(x, y); VAL [fmax_double(x, y)=4294967299, res=4294967299, x=0, y=4294967299] [L84] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=4294967299, res == 0.0 && __signbit_double(res) == 0=0, x=0, y=4294967299] [L84] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) VAL [res=4294967299, res == 0.0 && __signbit_double(res) == 0=0, x=0, y=4294967299] [L85] __VERIFIER_error() VAL [res=4294967299, x=0, y=4294967299] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, 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, 0.1s 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 11242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...