/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_1251b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:10:57,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:10:57,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:10:57,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:10:57,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:10:57,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:10:57,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:10:57,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:10:57,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:10:57,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:10:57,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:10:57,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:10:57,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:10:57,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:10:57,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:10:57,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:10:57,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:10:57,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:10:57,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:10:57,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:10:57,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:10:57,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:10:57,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:10:57,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:10:57,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 16:10:57,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:10:57,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:10:57,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:10:57,839 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 16:10:57,861 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:10:57,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:10:57,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:10:57,865 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:10:57,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:10:57,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:10:57,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:10:57,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:10:57,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:10:57,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:10:57,867 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:10:57,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:10:57,868 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:10:57,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:10:57,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:10:57,868 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:10:57,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:10:57,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:10:57,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:10:57,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:10:57,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:10:57,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:10:57,870 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:10:58,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:10:58,352 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:10:58,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:10:58,358 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:10:58,358 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:10:58,359 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-09-04 16:10:58,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c9ab9482/8311bd0b0f2046b187e2759b6c44675a/FLAG66b173c15 [2020-09-04 16:10:58,977 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:10:58,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-09-04 16:10:58,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c9ab9482/8311bd0b0f2046b187e2759b6c44675a/FLAG66b173c15 [2020-09-04 16:10:59,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c9ab9482/8311bd0b0f2046b187e2759b6c44675a [2020-09-04 16:10:59,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:10:59,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:10:59,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:10:59,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:10:59,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:10:59,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:10:59" (1/1) ... [2020-09-04 16:10:59,352 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 04:10:59, skipping insertion in model container [2020-09-04 16:10:59,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:10:59" (1/1) ... [2020-09-04 16:10:59,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:10:59,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:10:59,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:10:59,622 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:10:59,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:10:59,684 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:10:59,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:59 WrapperNode [2020-09-04 16:10:59,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:10:59,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:10:59,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:10:59,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:10:59,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:59" (1/1) ... [2020-09-04 16:10:59,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:59" (1/1) ... [2020-09-04 16:10:59,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:59" (1/1) ... [2020-09-04 16:10:59,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:59" (1/1) ... [2020-09-04 16:10:59,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:59" (1/1) ... [2020-09-04 16:10:59,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:59" (1/1) ... [2020-09-04 16:10:59,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:59" (1/1) ... [2020-09-04 16:10:59,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:10:59,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:10:59,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:10:59,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:10:59,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:59" (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 16:10:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:10:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:10:59,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-04 16:10:59,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-09-04 16:10:59,890 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-09-04 16:10:59,891 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:10:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:10:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-04 16:10:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-04 16:10:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-09-04 16:10:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 16:10:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 16:10:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:10:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:10:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-09-04 16:10:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:10:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:10:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:10:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 16:10:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:11:00,319 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:11:00,320 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-04 16:11:00,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:11:00 BoogieIcfgContainer [2020-09-04 16:11:00,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:11:00,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:11:00,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:11:00,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:11:00,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:10:59" (1/3) ... [2020-09-04 16:11:00,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0a239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:11:00, skipping insertion in model container [2020-09-04 16:11:00,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:59" (2/3) ... [2020-09-04 16:11:00,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0a239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:11:00, skipping insertion in model container [2020-09-04 16:11:00,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:11:00" (3/3) ... [2020-09-04 16:11:00,335 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1251b.c [2020-09-04 16:11:00,347 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:11:00,358 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:11:00,380 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:11:00,404 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:11:00,404 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:11:00,404 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:11:00,404 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:11:00,404 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:11:00,405 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:11:00,405 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:11:00,405 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:11:00,422 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-09-04 16:11:00,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-04 16:11:00,435 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:00,436 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] [2020-09-04 16:11:00,437 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:00,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:00,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1770687738, now seen corresponding path program 1 times [2020-09-04 16:11:00,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:00,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584574856] [2020-09-04 16:11:00,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:00,538 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:11:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 16:11:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,799 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 16:11:00,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584574856] [2020-09-04 16:11:00,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:00,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 16:11:00,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293264981] [2020-09-04 16:11:00,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 16:11:00,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:00,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 16:11:00,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:11:00,830 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 4 states. [2020-09-04 16:11:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:01,140 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2020-09-04 16:11:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 16:11:01,142 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-09-04 16:11:01,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:01,160 INFO L225 Difference]: With dead ends: 141 [2020-09-04 16:11:01,161 INFO L226 Difference]: Without dead ends: 74 [2020-09-04 16:11:01,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 16:11:01,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-04 16:11:01,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-04 16:11:01,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-04 16:11:01,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2020-09-04 16:11:01,265 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 40 [2020-09-04 16:11:01,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:01,266 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2020-09-04 16:11:01,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 16:11:01,267 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2020-09-04 16:11:01,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-04 16:11:01,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:01,271 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, 1, 1] [2020-09-04 16:11:01,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:11:01,271 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:01,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:01,272 INFO L82 PathProgramCache]: Analyzing trace with hash 524719120, now seen corresponding path program 1 times [2020-09-04 16:11:01,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:01,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958129067] [2020-09-04 16:11:01,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:01,276 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:01,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:01,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:11:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:01,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 16:11:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:01,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:01,569 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 16:11:01,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958129067] [2020-09-04 16:11:01,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:01,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:11:01,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308802406] [2020-09-04 16:11:01,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:11:01,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:01,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:11:01,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:11:01,574 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 6 states. [2020-09-04 16:11:01,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:01,873 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2020-09-04 16:11:01,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:11:01,874 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-09-04 16:11:01,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:01,878 INFO L225 Difference]: With dead ends: 88 [2020-09-04 16:11:01,879 INFO L226 Difference]: Without dead ends: 79 [2020-09-04 16:11:01,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 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 16:11:01,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-04 16:11:01,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2020-09-04 16:11:01,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-04 16:11:01,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-09-04 16:11:01,900 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 54 [2020-09-04 16:11:01,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:01,900 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-09-04 16:11:01,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:11:01,901 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-09-04 16:11:01,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-04 16:11:01,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:01,903 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, 1, 1, 1, 1, 1] [2020-09-04 16:11:01,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:11:01,903 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:01,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:01,904 INFO L82 PathProgramCache]: Analyzing trace with hash 2023591653, now seen corresponding path program 1 times [2020-09-04 16:11:01,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:01,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806610492] [2020-09-04 16:11:01,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:01,907 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:01,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:02,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 16:11:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:02,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-04 16:11:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:02,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:02,124 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 16:11:02,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806610492] [2020-09-04 16:11:02,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:02,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:11:02,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083625503] [2020-09-04 16:11:02,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:11:02,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:02,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:11:02,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:11:02,127 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand 6 states. [2020-09-04 16:11:02,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:02,343 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2020-09-04 16:11:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:11:02,343 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-09-04 16:11:02,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:02,346 INFO L225 Difference]: With dead ends: 92 [2020-09-04 16:11:02,346 INFO L226 Difference]: Without dead ends: 83 [2020-09-04 16:11:02,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 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 16:11:02,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-04 16:11:02,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2020-09-04 16:11:02,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-04 16:11:02,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-09-04 16:11:02,361 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 57 [2020-09-04 16:11:02,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:02,361 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-09-04 16:11:02,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:11:02,362 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-09-04 16:11:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-04 16:11:02,364 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:02,364 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, 1, 1, 1, 1, 1] [2020-09-04 16:11:02,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:11:02,364 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:02,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:02,365 INFO L82 PathProgramCache]: Analyzing trace with hash 425668389, now seen corresponding path program 1 times [2020-09-04 16:11:02,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:02,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624176329] [2020-09-04 16:11:02,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:02,367 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:11:02,394 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:11:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:11:02,416 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:11:02,450 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 16:11:02,450 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 16:11:02,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 16:11:02,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:11:02 BoogieIcfgContainer [2020-09-04 16:11:02,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:11:02,480 INFO L168 Benchmark]: Toolchain (without parser) took 3140.19 ms. Allocated memory was 140.0 MB in the beginning and 234.9 MB in the end (delta: 94.9 MB). Free memory was 103.3 MB in the beginning and 113.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:02,481 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:11:02,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.60 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 92.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:02,483 INFO L168 Benchmark]: Boogie Preprocessor took 129.42 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 92.1 MB in the beginning and 181.2 MB in the end (delta: -89.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:02,484 INFO L168 Benchmark]: RCFGBuilder took 509.94 ms. Allocated memory is still 203.9 MB. Free memory was 181.2 MB in the beginning and 158.6 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:02,485 INFO L168 Benchmark]: TraceAbstraction took 2149.43 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 158.6 MB in the beginning and 113.2 MB in the end (delta: 45.4 MB). Peak memory consumption was 76.3 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:02,489 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 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 344.60 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 92.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.42 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 92.1 MB in the beginning and 181.2 MB in the end (delta: -89.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 509.94 ms. Allocated memory is still 203.9 MB. Free memory was 181.2 MB in the beginning and 158.6 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2149.43 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 158.6 MB in the beginning and 113.2 MB in the end (delta: 45.4 MB). Peak memory consumption was 76.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 78]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 77, overapproximation of someBinaryArithmeticDOUBLEoperation at line 65. Possible FailurePath: [L64] double x = __VERIFIER_nondet_double(); [L65] double y = 0.0 / 0.0; [L72] CALL, EXPR isnan_double(x) [L16] return x != x; [L72] RET, EXPR isnan_double(x) [L72] COND TRUE !isnan_double(x) [L74] CALL, EXPR fmax_double(x, y) [L55] CALL, EXPR __fpclassify_double(x) [L27] __uint32_t msw, lsw; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (msw) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lsw) = ew_u.parts.lsw [L36-L37] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L39-L40] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L42-L43] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L46-L47] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L50] return 0; [L55] RET, EXPR __fpclassify_double(x) [L55] COND TRUE __fpclassify_double(x) == 0 [L56] return y; [L74] RET, EXPR fmax_double(x, y) [L74] double res = fmax_double(x, y); [L77] COND TRUE res != x [L78] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 81 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: 243 SDtfs, 97 SDslu, 395 SDs, 0 SdLazy, 325 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred 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: 0.1s 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...