/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -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-d623d84 [2020-07-20 10:45:07,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 10:45:07,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 10:45:07,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 10:45:07,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 10:45:07,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 10:45:07,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 10:45:07,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 10:45:07,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 10:45:07,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 10:45:07,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 10:45:07,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 10:45:07,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 10:45:07,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 10:45:07,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 10:45:07,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 10:45:07,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 10:45:07,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 10:45:07,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 10:45:08,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 10:45:08,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 10:45:08,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 10:45:08,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 10:45:08,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 10:45:08,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 10:45:08,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 10:45:08,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 10:45:08,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 10:45:08,029 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 [2020-07-20 10:45:08,056 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 10:45:08,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 10:45:08,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 10:45:08,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 10:45:08,059 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 10:45:08,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 10:45:08,059 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 10:45:08,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 10:45:08,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 10:45:08,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 10:45:08,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 10:45:08,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 10:45:08,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 10:45:08,060 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 10:45:08,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 10:45:08,061 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 10:45:08,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 10:45:08,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 10:45:08,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 10:45:08,062 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 10:45:08,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 10:45:08,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:45:08,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 10:45:08,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 10:45:08,063 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 10:45:08,063 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 10:45:08,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:45:08,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 10:45:08,064 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 10:45:08,064 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 10:45:08,352 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 10:45:08,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 10:45:08,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 10:45:08,373 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 10:45:08,373 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 10:45:08,374 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-07-20 10:45:08,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02aadc575/cbff6792012e4f289c1e3872ff02d670/FLAGa445136dc [2020-07-20 10:45:08,935 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 10:45:08,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-07-20 10:45:08,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02aadc575/cbff6792012e4f289c1e3872ff02d670/FLAGa445136dc [2020-07-20 10:45:09,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02aadc575/cbff6792012e4f289c1e3872ff02d670 [2020-07-20 10:45:09,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 10:45:09,312 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 10:45:09,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 10:45:09,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 10:45:09,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 10:45:09,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:45:09" (1/1) ... [2020-07-20 10:45:09,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19856784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09, skipping insertion in model container [2020-07-20 10:45:09,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:45:09" (1/1) ... [2020-07-20 10:45:09,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 10:45:09,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 10:45:09,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:45:09,540 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 10:45:09,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:45:09,678 INFO L208 MainTranslator]: Completed translation [2020-07-20 10:45:09,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09 WrapperNode [2020-07-20 10:45:09,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 10:45:09,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 10:45:09,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 10:45:09,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 10:45:09,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2020-07-20 10:45:09,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2020-07-20 10:45:09,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2020-07-20 10:45:09,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2020-07-20 10:45:09,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2020-07-20 10:45:09,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2020-07-20 10:45:09,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2020-07-20 10:45:09,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 10:45:09,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 10:45:09,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 10:45:09,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 10:45:09,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (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 [2020-07-20 10:45:09,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 10:45:09,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 10:45:09,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-20 10:45:09,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-07-20 10:45:09,794 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-07-20 10:45:09,795 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 10:45:09,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 10:45:09,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-20 10:45:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-20 10:45:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-07-20 10:45:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 10:45:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-20 10:45:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 10:45:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 10:45:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-07-20 10:45:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 10:45:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 10:45:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 10:45:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 10:45:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-20 10:45:10,098 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 10:45:10,099 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-20 10:45:10,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:45:10 BoogieIcfgContainer [2020-07-20 10:45:10,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 10:45:10,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 10:45:10,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 10:45:10,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 10:45:10,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:45:09" (1/3) ... [2020-07-20 10:45:10,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6577aef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:45:10, skipping insertion in model container [2020-07-20 10:45:10,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (2/3) ... [2020-07-20 10:45:10,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6577aef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:45:10, skipping insertion in model container [2020-07-20 10:45:10,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:45:10" (3/3) ... [2020-07-20 10:45:10,112 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2020-07-20 10:45:10,123 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 10:45:10,130 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 10:45:10,146 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 10:45:10,171 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 10:45:10,171 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 10:45:10,171 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 10:45:10,172 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 10:45:10,172 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 10:45:10,172 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 10:45:10,172 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 10:45:10,172 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 10:45:10,194 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-20 10:45:10,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-20 10:45:10,201 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:45:10,202 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] [2020-07-20 10:45:10,203 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:45:10,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:45:10,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1251720270, now seen corresponding path program 1 times [2020-07-20 10:45:10,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:45:10,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007474883] [2020-07-20 10:45:10,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:45:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:45:10,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 10:45:10,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:45:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:45:10,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:45:10,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007474883] [2020-07-20 10:45:10,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:45:10,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 10:45:10,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563213545] [2020-07-20 10:45:10,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 10:45:10,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:45:10,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 10:45:10,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:45:10,404 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-07-20 10:45:10,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:45:10,431 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2020-07-20 10:45:10,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 10:45:10,433 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2020-07-20 10:45:10,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:45:10,442 INFO L225 Difference]: With dead ends: 71 [2020-07-20 10:45:10,443 INFO L226 Difference]: Without dead ends: 36 [2020-07-20 10:45:10,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:45:10,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-07-20 10:45:10,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-07-20 10:45:10,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-20 10:45:10,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-07-20 10:45:10,499 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2020-07-20 10:45:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:45:10,499 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-07-20 10:45:10,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 10:45:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-07-20 10:45:10,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-20 10:45:10,503 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:45:10,503 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] [2020-07-20 10:45:10,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:45:10,717 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:45:10,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:45:10,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1491407075, now seen corresponding path program 1 times [2020-07-20 10:45:10,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:45:10,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533498244] [2020-07-20 10:45:10,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:45:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:45:10,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 10:45:10,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:45:10,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:45:10,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:45:10,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533498244] [2020-07-20 10:45:10,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:45:10,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 10:45:10,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010833182] [2020-07-20 10:45:10,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 10:45:10,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:45:10,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 10:45:10,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 10:45:10,869 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 4 states. [2020-07-20 10:45:10,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:45:10,922 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-07-20 10:45:10,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 10:45:10,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-07-20 10:45:10,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:45:10,928 INFO L225 Difference]: With dead ends: 51 [2020-07-20 10:45:10,928 INFO L226 Difference]: Without dead ends: 40 [2020-07-20 10:45:10,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 10:45:10,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-07-20 10:45:10,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-07-20 10:45:10,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-20 10:45:10,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-07-20 10:45:10,952 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2020-07-20 10:45:10,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:45:10,954 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-07-20 10:45:10,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 10:45:10,955 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-07-20 10:45:10,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-20 10:45:10,957 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:45:10,957 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] [2020-07-20 10:45:11,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:45:11,164 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:45:11,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:45:11,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1711130393, now seen corresponding path program 1 times [2020-07-20 10:45:11,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:45:11,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1342955117] [2020-07-20 10:45:11,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:45:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:45:11,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 10:45:11,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:45:11,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:45:11,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:45:11,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1342955117] [2020-07-20 10:45:11,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:45:11,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 10:45:11,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919498804] [2020-07-20 10:45:11,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 10:45:11,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:45:11,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 10:45:11,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 10:45:11,257 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 4 states. [2020-07-20 10:45:11,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:45:11,290 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-07-20 10:45:11,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 10:45:11,290 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-07-20 10:45:11,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:45:11,292 INFO L225 Difference]: With dead ends: 55 [2020-07-20 10:45:11,292 INFO L226 Difference]: Without dead ends: 44 [2020-07-20 10:45:11,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 10:45:11,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-20 10:45:11,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-07-20 10:45:11,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-20 10:45:11,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-07-20 10:45:11,302 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30 [2020-07-20 10:45:11,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:45:11,302 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-07-20 10:45:11,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 10:45:11,303 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-07-20 10:45:11,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-20 10:45:11,304 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:45:11,304 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] [2020-07-20 10:45:11,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:45:11,518 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:45:11,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:45:11,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1076285094, now seen corresponding path program 1 times [2020-07-20 10:45:11,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:45:11,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624089081] [2020-07-20 10:45:11,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:45:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:45:11,595 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:45:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:45:11,624 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:45:11,674 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 10:45:11,674 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 10:45:11,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:45:11,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:45:11 BoogieIcfgContainer [2020-07-20 10:45:11,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 10:45:11,923 INFO L168 Benchmark]: Toolchain (without parser) took 2611.21 ms. Allocated memory was 138.9 MB in the beginning and 235.4 MB in the end (delta: 96.5 MB). Free memory was 102.1 MB in the beginning and 198.4 MB in the end (delta: -96.3 MB). Peak memory consumption was 120.2 kB. Max. memory is 7.1 GB. [2020-07-20 10:45:11,924 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 10:45:11,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.30 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 181.9 MB in the end (delta: -80.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-07-20 10:45:11,926 INFO L168 Benchmark]: Boogie Preprocessor took 44.09 ms. Allocated memory is still 202.9 MB. Free memory was 181.9 MB in the beginning and 179.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-07-20 10:45:11,928 INFO L168 Benchmark]: RCFGBuilder took 379.25 ms. Allocated memory is still 202.9 MB. Free memory was 179.6 MB in the beginning and 160.4 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2020-07-20 10:45:11,932 INFO L168 Benchmark]: TraceAbstraction took 1816.25 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 160.4 MB in the beginning and 198.4 MB in the end (delta: -38.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 10:45:11,937 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 366.30 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 181.9 MB in the end (delta: -80.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.09 ms. Allocated memory is still 202.9 MB. Free memory was 181.9 MB in the beginning and 179.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 379.25 ms. Allocated memory is still 202.9 MB. Free memory was 179.6 MB in the beginning and 160.4 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1816.25 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 160.4 MB in the beginning and 198.4 MB in the end (delta: -38.0 MB). There was no memory consumed. 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)=4, \old(y)=3] [L45] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4] [L18] __uint32_t msw, lsw; VAL [\old(x)=4, x=4] [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)=4, lsw=7719, msw=6441402369, x=4] [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4, lsw=7719, msw=6441402369, x=4] [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4, lsw=7719, msw=6441402369, x=4] [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L41] return 0; VAL [\old(x)=4, \result=0, lsw=7719, msw=6441402369, x=4] [L45] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4, \old(y)=3, __fpclassify_double(x)=0, x=4, y=3] [L45] COND TRUE __fpclassify_double(x) == 0 [L46] return y; VAL [\old(x)=4, \old(y)=3, \result=3, x=4, y=3] [L63] RET, EXPR fmin_double(x, y) VAL [fmin_double(x, y)=3, x=4, y=3] [L63] double res = fmin_double(x, y); [L65] CALL, EXPR isnan_double(res) VAL [\old(x)=3] [L16] return x != x; VAL [\old(x)=3, \result=0, x=3] [L65] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, res=3, x=4, y=3] [L65] COND TRUE !isnan_double(res) [L66] __VERIFIER_error() VAL [res=3, x=4, y=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 129 SDtfs, 0 SDslu, 152 SDs, 0 SdLazy, 17 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 2582 SizeOfPredicates, 0 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 7 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...