/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:17:15,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:17:15,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:17:15,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:17:15,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:17:15,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:17:15,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:17:15,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:17:15,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:17:15,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:17:15,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:17:15,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:17:15,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:17:15,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:17:15,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:17:15,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:17:15,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:17:15,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:17:15,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:17:15,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:17:15,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:17:15,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:17:15,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:17:15,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:17:15,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 16:17:15,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:17:15,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:17:15,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:17:15,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 16:17:15,454 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:17:15,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:17:15,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:17:15,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:17:15,457 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:17:15,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:17:15,457 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:17:15,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:17:15,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:17:15,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:17:15,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:17:15,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:17:15,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:17:15,460 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:17:15,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:17:15,461 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:17:15,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:17:15,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:17:15,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:17:15,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:17:15,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:17:15,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:17:15,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:17:15,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:17:15,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:17:15,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:17:15,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:17:15,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:17:15,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:17:15,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:17:15,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:17:15,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:17:15,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:17:15,781 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:17:15,782 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:17:15,782 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-08-22 16:17:15,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/669cc0452/16d97db5bc3147f59e5ec6cc21f2bf03/FLAGdce78576e [2020-08-22 16:17:16,337 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:17:16,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-08-22 16:17:16,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/669cc0452/16d97db5bc3147f59e5ec6cc21f2bf03/FLAGdce78576e [2020-08-22 16:17:16,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/669cc0452/16d97db5bc3147f59e5ec6cc21f2bf03 [2020-08-22 16:17:16,743 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:17:16,745 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:17:16,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:17:16,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:17:16,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:17:16,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:17:16" (1/1) ... [2020-08-22 16:17:16,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6fb2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:16, skipping insertion in model container [2020-08-22 16:17:16,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:17:16" (1/1) ... [2020-08-22 16:17:16,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:17:16,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:17:16,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:17:16,971 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:17:16,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:17:17,105 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:17:17,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:17 WrapperNode [2020-08-22 16:17:17,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:17:17,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:17:17,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:17:17,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:17:17,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:17" (1/1) ... [2020-08-22 16:17:17,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:17" (1/1) ... [2020-08-22 16:17:17,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:17" (1/1) ... [2020-08-22 16:17:17,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:17" (1/1) ... [2020-08-22 16:17:17,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:17" (1/1) ... [2020-08-22 16:17:17,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:17" (1/1) ... [2020-08-22 16:17:17,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:17" (1/1) ... [2020-08-22 16:17:17,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:17:17,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:17:17,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:17:17,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:17:17,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-08-22 16:17:17,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:17:17,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:17:17,222 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-22 16:17:17,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-08-22 16:17:17,222 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-08-22 16:17:17,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:17:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:17:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 16:17:17,222 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-22 16:17:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-08-22 16:17:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 16:17:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 16:17:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 16:17:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 16:17:17,223 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-08-22 16:17:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:17:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:17:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:17:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 16:17:17,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 16:17:17,564 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:17:17,564 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-22 16:17:17,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:17:17 BoogieIcfgContainer [2020-08-22 16:17:17,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:17:17,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:17:17,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:17:17,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:17:17,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:17:16" (1/3) ... [2020-08-22 16:17:17,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46010eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:17:17, skipping insertion in model container [2020-08-22 16:17:17,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:17:17" (2/3) ... [2020-08-22 16:17:17,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46010eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:17:17, skipping insertion in model container [2020-08-22 16:17:17,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:17:17" (3/3) ... [2020-08-22 16:17:17,576 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2020-08-22 16:17:17,586 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:17:17,593 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:17:17,604 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:17:17,624 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:17:17,625 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:17:17,625 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:17:17,625 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:17:17,625 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:17:17,625 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:17:17,625 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:17:17,625 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:17:17,642 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-08-22 16:17:17,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-22 16:17:17,649 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:17:17,650 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] [2020-08-22 16:17:17,650 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:17:17,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:17:17,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1251720270, now seen corresponding path program 1 times [2020-08-22 16:17:17,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:17:17,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109915804] [2020-08-22 16:17:17,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:17:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:17,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:17:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:17,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:17:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:17,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:17:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:17,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:17:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:17,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:17:17,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109915804] [2020-08-22 16:17:17,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:17:17,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 16:17:17,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867513814] [2020-08-22 16:17:17,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 16:17:17,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:17:17,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 16:17:17,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 16:17:17,953 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 4 states. [2020-08-22 16:17:18,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:17:18,168 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2020-08-22 16:17:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 16:17:18,170 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-08-22 16:17:18,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:17:18,181 INFO L225 Difference]: With dead ends: 71 [2020-08-22 16:17:18,181 INFO L226 Difference]: Without dead ends: 36 [2020-08-22 16:17:18,185 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 [2020-08-22 16:17:18,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-08-22 16:17:18,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-08-22 16:17:18,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-08-22 16:17:18,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-08-22 16:17:18,236 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2020-08-22 16:17:18,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:17:18,237 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-08-22 16:17:18,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 16:17:18,237 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-08-22 16:17:18,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-22 16:17:18,239 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:17:18,243 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] [2020-08-22 16:17:18,243 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:17:18,244 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:17:18,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:17:18,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1491407075, now seen corresponding path program 1 times [2020-08-22 16:17:18,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:17:18,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196705849] [2020-08-22 16:17:18,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:17:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:18,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:17:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:18,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:17:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:18,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:17:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:18,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-08-22 16:17:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:18,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:17:18,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196705849] [2020-08-22 16:17:18,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:17:18,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 16:17:18,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143368413] [2020-08-22 16:17:18,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 16:17:18,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:17:18,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 16:17:18,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:17:18,462 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 6 states. [2020-08-22 16:17:18,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:17:18,721 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-08-22 16:17:18,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 16:17:18,723 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-08-22 16:17:18,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:17:18,726 INFO L225 Difference]: With dead ends: 51 [2020-08-22 16:17:18,727 INFO L226 Difference]: Without dead ends: 40 [2020-08-22 16:17:18,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-22 16:17:18,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-08-22 16:17:18,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-08-22 16:17:18,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-08-22 16:17:18,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-08-22 16:17:18,740 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2020-08-22 16:17:18,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:17:18,741 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-08-22 16:17:18,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 16:17:18,741 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-08-22 16:17:18,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-22 16:17:18,742 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:17:18,742 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] [2020-08-22 16:17:18,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:17:18,743 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:17:18,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:17:18,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1711130393, now seen corresponding path program 1 times [2020-08-22 16:17:18,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:17:18,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179935800] [2020-08-22 16:17:18,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:17:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:18,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:17:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:18,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:17:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:18,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:17:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:18,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 16:17:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:17:18,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:17:18,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179935800] [2020-08-22 16:17:18,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:17:18,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 16:17:18,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455822187] [2020-08-22 16:17:18,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 16:17:18,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:17:18,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 16:17:18,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:17:18,896 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2020-08-22 16:17:19,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:17:19,112 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-08-22 16:17:19,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 16:17:19,113 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-08-22 16:17:19,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:17:19,115 INFO L225 Difference]: With dead ends: 55 [2020-08-22 16:17:19,115 INFO L226 Difference]: Without dead ends: 44 [2020-08-22 16:17:19,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-22 16:17:19,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-22 16:17:19,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-08-22 16:17:19,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-08-22 16:17:19,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-08-22 16:17:19,125 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30 [2020-08-22 16:17:19,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:17:19,125 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-08-22 16:17:19,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 16:17:19,126 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-08-22 16:17:19,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-22 16:17:19,127 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:17:19,127 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] [2020-08-22 16:17:19,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 16:17:19,128 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:17:19,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:17:19,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1076285094, now seen corresponding path program 1 times [2020-08-22 16:17:19,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:17:19,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586310467] [2020-08-22 16:17:19,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:17:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:17:19,152 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:17:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:17:19,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:17:19,214 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-08-22 16:17:19,214 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 16:17:19,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 16:17:19,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:17:19 BoogieIcfgContainer [2020-08-22 16:17:19,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:17:19,260 INFO L168 Benchmark]: Toolchain (without parser) took 2513.82 ms. Allocated memory was 142.1 MB in the beginning and 232.8 MB in the end (delta: 90.7 MB). Free memory was 103.6 MB in the beginning and 137.6 MB in the end (delta: -34.0 MB). Peak memory consumption was 56.7 MB. Max. memory is 7.1 GB. [2020-08-22 16:17:19,261 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 16:17:19,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.29 ms. Allocated memory was 142.1 MB in the beginning and 205.5 MB in the end (delta: 63.4 MB). Free memory was 103.4 MB in the beginning and 184.1 MB in the end (delta: -80.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-08-22 16:17:19,263 INFO L168 Benchmark]: Boogie Preprocessor took 53.02 ms. Allocated memory is still 205.5 MB. Free memory was 184.1 MB in the beginning and 181.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-08-22 16:17:19,264 INFO L168 Benchmark]: RCFGBuilder took 407.60 ms. Allocated memory is still 205.5 MB. Free memory was 181.9 MB in the beginning and 163.2 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2020-08-22 16:17:19,265 INFO L168 Benchmark]: TraceAbstraction took 1687.27 ms. Allocated memory was 205.5 MB in the beginning and 232.8 MB in the end (delta: 27.3 MB). Free memory was 162.5 MB in the beginning and 137.6 MB in the end (delta: 24.9 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. [2020-08-22 16:17:19,269 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 361.29 ms. Allocated memory was 142.1 MB in the beginning and 205.5 MB in the end (delta: 63.4 MB). Free memory was 103.4 MB in the beginning and 184.1 MB in the end (delta: -80.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.02 ms. Allocated memory is still 205.5 MB. Free memory was 184.1 MB in the beginning and 181.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 407.60 ms. Allocated memory is still 205.5 MB. Free memory was 181.9 MB in the beginning and 163.2 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1687.27 ms. Allocated memory was 205.5 MB in the beginning and 232.8 MB in the end (delta: 27.3 MB). Free memory was 162.5 MB in the beginning and 137.6 MB in the end (delta: 24.9 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 66]: 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 61. Possible FailurePath: [L61] double x = 0.0 / 0.0; [L62] double y = 0.0 / 0.0; [L63] CALL, EXPR fmin_double(x, y) VAL [\old(x)=4293918727, \old(y)=4293918728] [L45] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4293918727] [L18] __uint32_t msw, lsw; VAL [\old(x)=4293918727, x=4293918727] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L27-L28] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4293918727, lsw=1, msw=4293918721, x=4293918727] [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4293918727, lsw=1, msw=4293918721, x=4293918727] [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4293918727, lsw=1, msw=4293918721, x=4293918727] [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L41] return 0; VAL [\old(x)=4293918727, \result=0, lsw=1, msw=4293918721, x=4293918727] [L45] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4293918727, \old(y)=4293918728, __fpclassify_double(x)=0, x=4293918727, y=4293918728] [L45] COND TRUE __fpclassify_double(x) == 0 [L46] return y; VAL [\old(x)=4293918727, \old(y)=4293918728, \result=4293918728, x=4293918727, y=4293918728] [L63] RET, EXPR fmin_double(x, y) VAL [fmin_double(x, y)=4293918728, x=4293918727, y=4293918728] [L63] double res = fmin_double(x, y); [L65] CALL, EXPR isnan_double(res) VAL [\old(x)=4293918728] [L16] return x != x; VAL [\old(x)=4293918728, \result=0, x=4293918728] [L65] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, res=4293918728, x=4293918727, y=4293918728] [L65] COND TRUE !isnan_double(res) [L66] __VERIFIER_error() VAL [res=4293918728, x=4293918727, y=4293918728] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 108 SDslu, 43 SDs, 0 SdLazy, 255 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 5222 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...