/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_1250.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:10:56,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:10:56,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:10:56,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:10:56,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:10:56,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:10:56,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:10:56,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:10:56,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:10:56,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:10:56,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:10:56,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:10:56,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:10:56,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:10:56,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:10:56,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:10:56,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:10:56,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:10:56,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:10:56,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:10:56,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:10:56,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:10:56,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:10:56,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:10:56,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 16:10:56,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 16:10:56,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 16:10:56,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 16:10:56,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 16:10:56,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-04 16:10:56,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:10:56,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:10:56,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:10:56,752 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 16:10:56,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:10:56,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:10:56,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:10:56,774 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:10:56,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:10:56,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:10:56,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:10:56,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:10:56,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:10:56,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:10:56,776 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:10:56,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:10:56,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:10:56,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:10:56,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:10:56,777 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:10:56,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:10:56,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:10:56,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:10:56,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:10:56,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:10:56,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:10:56,779 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:10:57,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:10:57,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:10:57,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:10:57,219 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:10:57,219 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:10:57,220 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1250.c [2020-09-04 16:10:57,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/938d5ad58/b624fde0432f42a9a97d6d6808f36e0d/FLAG35d412e6b [2020-09-04 16:10:57,861 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:10:57,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1250.c [2020-09-04 16:10:57,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/938d5ad58/b624fde0432f42a9a97d6d6808f36e0d/FLAG35d412e6b [2020-09-04 16:10:58,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/938d5ad58/b624fde0432f42a9a97d6d6808f36e0d [2020-09-04 16:10:58,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:10:58,227 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:10:58,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:10:58,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:10:58,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:10:58,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:10:58" (1/1) ... [2020-09-04 16:10:58,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@231fe863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:58, skipping insertion in model container [2020-09-04 16:10:58,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:10:58" (1/1) ... [2020-09-04 16:10:58,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:10:58,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:10:58,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:10:58,505 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:10:58,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:10:58,557 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:10:58,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:58 WrapperNode [2020-09-04 16:10:58,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:10:58,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:10:58,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:10:58,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:10:58,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:58" (1/1) ... [2020-09-04 16:10:58,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:58" (1/1) ... [2020-09-04 16:10:58,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:58" (1/1) ... [2020-09-04 16:10:58,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:58" (1/1) ... [2020-09-04 16:10:58,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:58" (1/1) ... [2020-09-04 16:10:58,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:58" (1/1) ... [2020-09-04 16:10:58,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:58" (1/1) ... [2020-09-04 16:10:58,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:10:58,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:10:58,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:10:58,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:10:58,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:58" (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 16:10:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:10:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:10:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-04 16:10:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-09-04 16:10:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-09-04 16:10:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:10:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:10:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-04 16:10:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-04 16:10:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-09-04 16:10:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 16:10:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 16:10:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:10:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:10:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-09-04 16:10:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:10:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:10:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:10:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 16:10:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:10:59,164 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:10:59,165 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-04 16:10:59,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:10:59 BoogieIcfgContainer [2020-09-04 16:10:59,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:10:59,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:10:59,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:10:59,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:10:59,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:10:58" (1/3) ... [2020-09-04 16:10:59,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5445d42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:10:59, skipping insertion in model container [2020-09-04 16:10:59,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:10:58" (2/3) ... [2020-09-04 16:10:59,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5445d42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:10:59, skipping insertion in model container [2020-09-04 16:10:59,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:10:59" (3/3) ... [2020-09-04 16:10:59,179 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1250.c [2020-09-04 16:10:59,193 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:10:59,202 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:10:59,223 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:10:59,246 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:10:59,246 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:10:59,247 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:10:59,247 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:10:59,247 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:10:59,247 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:10:59,247 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:10:59,247 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:10:59,266 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-09-04 16:10:59,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-04 16:10:59,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:10:59,280 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] [2020-09-04 16:10:59,280 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:10:59,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:10:59,287 INFO L82 PathProgramCache]: Analyzing trace with hash -262911209, now seen corresponding path program 1 times [2020-09-04 16:10:59,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:10:59,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661753074] [2020-09-04 16:10:59,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:10:59,363 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:10:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:59,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:10:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:59,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:10:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:59,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:10:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:59,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-04 16:10:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:10:59,589 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 16:10:59,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661753074] [2020-09-04 16:10:59,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:10:59,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 16:10:59,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483109964] [2020-09-04 16:10:59,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 16:10:59,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:10:59,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 16:10:59,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:10:59,617 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 4 states. [2020-09-04 16:10:59,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:10:59,882 INFO L93 Difference]: Finished difference Result 144 states and 165 transitions. [2020-09-04 16:10:59,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 16:10:59,884 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-09-04 16:10:59,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:10:59,898 INFO L225 Difference]: With dead ends: 144 [2020-09-04 16:10:59,898 INFO L226 Difference]: Without dead ends: 72 [2020-09-04 16:10:59,903 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 16:10:59,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-04 16:10:59,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-09-04 16:10:59,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-04 16:10:59,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2020-09-04 16:10:59,968 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 38 [2020-09-04 16:10:59,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:10:59,968 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2020-09-04 16:10:59,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 16:10:59,969 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2020-09-04 16:10:59,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-04 16:10:59,972 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:10:59,973 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 16:10:59,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:10:59,973 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:10:59,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:10:59,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1870357407, now seen corresponding path program 1 times [2020-09-04 16:10:59,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:10:59,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238522262] [2020-09-04 16:10:59,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:10:59,977 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:11:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-04 16:11:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,281 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 16:11:00,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238522262] [2020-09-04 16:11:00,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:00,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:11:00,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129396313] [2020-09-04 16:11:00,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:11:00,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:00,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:11:00,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:11:00,285 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand 6 states. [2020-09-04 16:11:00,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:00,479 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2020-09-04 16:11:00,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:11:00,479 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-04 16:11:00,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:00,483 INFO L225 Difference]: With dead ends: 93 [2020-09-04 16:11:00,484 INFO L226 Difference]: Without dead ends: 77 [2020-09-04 16:11:00,485 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 16:11:00,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-04 16:11:00,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2020-09-04 16:11:00,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-04 16:11:00,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-09-04 16:11:00,503 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 52 [2020-09-04 16:11:00,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:00,503 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-09-04 16:11:00,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:11:00,503 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-09-04 16:11:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-04 16:11:00,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:00,505 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] [2020-09-04 16:11:00,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:11:00,506 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:00,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:00,506 INFO L82 PathProgramCache]: Analyzing trace with hash 116411547, now seen corresponding path program 1 times [2020-09-04 16:11:00,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:00,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273229281] [2020-09-04 16:11:00,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:00,509 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:11:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-04 16:11:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:00,686 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 16:11:00,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [273229281] [2020-09-04 16:11:00,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:00,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:11:00,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680556949] [2020-09-04 16:11:00,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:11:00,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:00,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:11:00,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:11:00,689 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 6 states. [2020-09-04 16:11:00,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:00,870 INFO L93 Difference]: Finished difference Result 97 states and 106 transitions. [2020-09-04 16:11:00,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:11:00,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-09-04 16:11:00,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:00,872 INFO L225 Difference]: With dead ends: 97 [2020-09-04 16:11:00,872 INFO L226 Difference]: Without dead ends: 81 [2020-09-04 16:11:00,873 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 16:11:00,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-04 16:11:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2020-09-04 16:11:00,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-04 16:11:00,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2020-09-04 16:11:00,887 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 55 [2020-09-04 16:11:00,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:00,887 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2020-09-04 16:11:00,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:11:00,888 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2020-09-04 16:11:00,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-04 16:11:00,889 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:00,890 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] [2020-09-04 16:11:00,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:11:00,890 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:00,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:00,891 INFO L82 PathProgramCache]: Analyzing trace with hash -278535077, now seen corresponding path program 1 times [2020-09-04 16:11:00,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:00,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456263105] [2020-09-04 16:11:00,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:00,893 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:11:00,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:11:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:11:00,990 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:11:01,035 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 16:11:01,035 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 16:11:01,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 16:11:01,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:11:01 BoogieIcfgContainer [2020-09-04 16:11:01,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:11:01,074 INFO L168 Benchmark]: Toolchain (without parser) took 2844.95 ms. Allocated memory was 139.5 MB in the beginning and 237.0 MB in the end (delta: 97.5 MB). Free memory was 103.1 MB in the beginning and 120.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:01,075 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:11:01,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.92 ms. Allocated memory is still 139.5 MB. Free memory was 102.9 MB in the beginning and 91.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:01,078 INFO L168 Benchmark]: Boogie Preprocessor took 119.86 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 91.6 MB in the beginning and 180.3 MB in the end (delta: -88.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:01,080 INFO L168 Benchmark]: RCFGBuilder took 491.43 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 158.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:01,086 INFO L168 Benchmark]: TraceAbstraction took 1898.36 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 157.7 MB in the beginning and 120.7 MB in the end (delta: 37.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:01,096 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 329.92 ms. Allocated memory is still 139.5 MB. Free memory was 102.9 MB in the beginning and 91.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.86 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 91.6 MB in the beginning and 180.3 MB in the end (delta: -88.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 491.43 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 158.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1898.36 ms. Allocated memory was 202.9 MB in the beginning and 237.0 MB in the end (delta: 34.1 MB). Free memory was 157.7 MB in the beginning and 120.7 MB in the end (delta: 37.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 72]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 68. Possible FailurePath: [L67] double x = 0.0 / 0.0; [L68] double y = 0.0 / 0.0; [L69] 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; [L69] RET, EXPR fmax_double(x, y) [L69] double res = fmax_double(x, y); [L71] CALL, EXPR isnan_double(res) [L16] return x != x; [L71] RET, EXPR isnan_double(res) [L71] COND TRUE !isnan_double(res) [L72] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 65 SDslu, 416 SDs, 0 SdLazy, 313 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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=79occurred 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...