/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:01:56,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:01:56,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:01:56,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 23:01:56,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 23:01:56,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 23:01:56,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 23:01:56,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 23:01:56,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 23:01:56,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 23:01:56,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 23:01:56,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 23:01:56,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:01:56,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:01:56,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:01:56,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:01:56,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:01:56,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:01:56,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:01:56,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:01:56,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:01:56,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:01:56,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:01:56,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:01:56,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 23:01:56,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:01:56,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:01:56,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:01:56,899 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 [2020-07-19 23:01:56,913 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:01:56,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:01:56,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:01:56,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:01:56,915 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:01:56,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:01:56,915 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:01:56,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:01:56,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:01:56,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:01:56,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:01:56,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:01:56,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:01:56,917 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:01:56,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:01:56,917 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:01:56,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:01:56,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:01:56,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:01:56,918 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:01:56,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:01:56,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:01:56,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:01:56,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:01:56,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:01:56,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:01:56,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:01:56,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:01:56,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:01:56,920 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 23:01:57,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:01:57,240 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:01:57,243 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:01:57,245 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:01:57,245 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:01:57,246 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1230.c [2020-07-19 23:01:57,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d1ad9d3c/20d82baa8e4843fe891a18113f0590b4/FLAGf21614fca [2020-07-19 23:01:57,763 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:01:57,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1230.c [2020-07-19 23:01:57,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d1ad9d3c/20d82baa8e4843fe891a18113f0590b4/FLAGf21614fca [2020-07-19 23:01:58,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d1ad9d3c/20d82baa8e4843fe891a18113f0590b4 [2020-07-19 23:01:58,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:01:58,160 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:01:58,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:01:58,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:01:58,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:01:58,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:01:58" (1/1) ... [2020-07-19 23:01:58,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21b7062e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:58, skipping insertion in model container [2020-07-19 23:01:58,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:01:58" (1/1) ... [2020-07-19 23:01:58,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:01:58,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:01:58,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:01:58,423 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:01:58,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:01:58,554 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:01:58,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:58 WrapperNode [2020-07-19 23:01:58,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:01:58,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:01:58,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:01:58,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:01:58,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:58" (1/1) ... [2020-07-19 23:01:58,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:58" (1/1) ... [2020-07-19 23:01:58,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:58" (1/1) ... [2020-07-19 23:01:58,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:58" (1/1) ... [2020-07-19 23:01:58,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:58" (1/1) ... [2020-07-19 23:01:58,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:58" (1/1) ... [2020-07-19 23:01:58,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:58" (1/1) ... [2020-07-19 23:01:58,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:01:58,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:01:58,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:01:58,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:01:58,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:58" (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 [2020-07-19 23:01:58,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:01:58,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:01:58,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-07-19 23:01:58,655 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2020-07-19 23:01:58,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-19 23:01:58,656 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:01:58,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:01:58,656 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-07-19 23:01:58,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 23:01:58,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-19 23:01:58,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 23:01:58,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 23:01:58,657 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2020-07-19 23:01:58,657 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-19 23:01:58,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:01:58,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:01:58,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:01:58,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 23:01:58,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-19 23:01:59,002 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:01:59,002 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-19 23:01:59,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:01:59 BoogieIcfgContainer [2020-07-19 23:01:59,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:01:59,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:01:59,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:01:59,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:01:59,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:01:58" (1/3) ... [2020-07-19 23:01:59,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d808fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:01:59, skipping insertion in model container [2020-07-19 23:01:59,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:58" (2/3) ... [2020-07-19 23:01:59,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d808fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:01:59, skipping insertion in model container [2020-07-19 23:01:59,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:01:59" (3/3) ... [2020-07-19 23:01:59,039 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2020-07-19 23:01:59,058 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:01:59,076 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:01:59,099 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:01:59,121 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:01:59,121 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:01:59,121 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:01:59,121 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:01:59,121 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:01:59,122 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:01:59,122 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:01:59,122 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:01:59,138 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-19 23:01:59,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-19 23:01:59,145 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:01:59,146 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] [2020-07-19 23:01:59,147 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:01:59,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:01:59,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1674881228, now seen corresponding path program 1 times [2020-07-19 23:01:59,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:01:59,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379422500] [2020-07-19 23:01:59,164 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@410de49c [2020-07-19 23:01:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:59,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:01:59,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379422500] [2020-07-19 23:01:59,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:01:59,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 23:01:59,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458374254] [2020-07-19 23:01:59,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 23:01:59,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:01:59,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 23:01:59,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 23:01:59,427 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 4 states. [2020-07-19 23:01:59,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:01:59,630 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2020-07-19 23:01:59,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-19 23:01:59,632 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-07-19 23:01:59,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:01:59,643 INFO L225 Difference]: With dead ends: 71 [2020-07-19 23:01:59,644 INFO L226 Difference]: Without dead ends: 36 [2020-07-19 23:01:59,648 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 [2020-07-19 23:01:59,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-07-19 23:01:59,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-07-19 23:01:59,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-19 23:01:59,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-07-19 23:01:59,696 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2020-07-19 23:01:59,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:01:59,697 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-07-19 23:01:59,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 23:01:59,697 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-07-19 23:01:59,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-19 23:01:59,700 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:01:59,700 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] [2020-07-19 23:01:59,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:01:59,701 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:01:59,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:01:59,701 INFO L82 PathProgramCache]: Analyzing trace with hash 312623789, now seen corresponding path program 1 times [2020-07-19 23:01:59,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:01:59,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113255817] [2020-07-19 23:01:59,702 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@410de49c [2020-07-19 23:01:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:59,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:01:59,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113255817] [2020-07-19 23:01:59,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:01:59,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 23:01:59,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997709441] [2020-07-19 23:01:59,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 23:01:59,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:01:59,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 23:01:59,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:01:59,898 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 6 states. [2020-07-19 23:02:00,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:02:00,156 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-07-19 23:02:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 23:02:00,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-07-19 23:02:00,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:02:00,159 INFO L225 Difference]: With dead ends: 51 [2020-07-19 23:02:00,160 INFO L226 Difference]: Without dead ends: 40 [2020-07-19 23:02:00,161 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 [2020-07-19 23:02:00,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-07-19 23:02:00,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-07-19 23:02:00,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-19 23:02:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-07-19 23:02:00,174 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2020-07-19 23:02:00,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:02:00,174 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-07-19 23:02:00,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 23:02:00,175 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-07-19 23:02:00,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-19 23:02:00,176 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:02:00,176 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] [2020-07-19 23:02:00,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 23:02:00,177 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:02:00,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:02:00,177 INFO L82 PathProgramCache]: Analyzing trace with hash -409741261, now seen corresponding path program 1 times [2020-07-19 23:02:00,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:02:00,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057212834] [2020-07-19 23:02:00,178 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@410de49c [2020-07-19 23:02:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:02:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:02:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:02:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:02:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:02:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:02:00,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057212834] [2020-07-19 23:02:00,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:02:00,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 23:02:00,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427549607] [2020-07-19 23:02:00,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 23:02:00,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:02:00,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 23:02:00,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:02:00,339 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2020-07-19 23:02:00,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:02:00,519 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-07-19 23:02:00,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 23:02:00,519 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-07-19 23:02:00,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:02:00,521 INFO L225 Difference]: With dead ends: 55 [2020-07-19 23:02:00,521 INFO L226 Difference]: Without dead ends: 44 [2020-07-19 23:02:00,522 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 [2020-07-19 23:02:00,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-19 23:02:00,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-07-19 23:02:00,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-19 23:02:00,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-07-19 23:02:00,531 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30 [2020-07-19 23:02:00,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:02:00,531 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-07-19 23:02:00,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 23:02:00,532 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-07-19 23:02:00,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-19 23:02:00,533 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:02:00,533 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] [2020-07-19 23:02:00,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 23:02:00,534 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:02:00,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:02:00,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1097810548, now seen corresponding path program 1 times [2020-07-19 23:02:00,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:02:00,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667333589] [2020-07-19 23:02:00,535 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@410de49c [2020-07-19 23:02:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:02:00,611 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:02:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:02:00,707 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:02:00,739 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 23:02:00,740 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 23:02:00,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 23:02:00,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:02:00 BoogieIcfgContainer [2020-07-19 23:02:00,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:02:00,780 INFO L168 Benchmark]: Toolchain (without parser) took 2620.03 ms. Allocated memory was 137.9 MB in the beginning and 234.4 MB in the end (delta: 96.5 MB). Free memory was 102.2 MB in the beginning and 136.1 MB in the end (delta: -33.9 MB). Peak memory consumption was 62.6 MB. Max. memory is 7.1 GB. [2020-07-19 23:02:00,781 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-19 23:02:00,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 393.53 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 181.4 MB in the end (delta: -79.6 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-07-19 23:02:00,783 INFO L168 Benchmark]: Boogie Preprocessor took 42.71 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 179.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-19 23:02:00,784 INFO L168 Benchmark]: RCFGBuilder took 416.91 ms. Allocated memory is still 202.4 MB. Free memory was 179.0 MB in the beginning and 160.5 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2020-07-19 23:02:00,785 INFO L168 Benchmark]: TraceAbstraction took 1760.44 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 159.8 MB in the beginning and 136.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 7.1 GB. [2020-07-19 23:02:00,789 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 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 393.53 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 181.4 MB in the end (delta: -79.6 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.71 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 179.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 416.91 ms. Allocated memory is still 202.4 MB. Free memory was 179.0 MB in the beginning and 160.5 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1760.44 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 159.8 MB in the beginning and 136.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 55.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 54. Possible FailurePath: [L54] float x = 0.0f / 0.0f; [L55] float y = 0.0f / 0.0f; [L56] CALL, EXPR fmin_float(x, y) VAL [\old(x)=4286578691, \old(y)=4286578693] [L35] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=4286578691] [L12] __uint32_t w; VAL [\old(x)=4286578691, x=4286578691] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L20] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L22-L23] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L25-L26] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L28] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L31] return 0; VAL [\old(x)=4286578691, \result=0, w=4286578689, x=4286578691] [L35] RET, EXPR __fpclassify_float(x) VAL [\old(x)=4286578691, \old(y)=4286578693, __fpclassify_float(x)=0, x=4286578691, y=4286578693] [L35] COND TRUE __fpclassify_float(x) == 0 [L36] return y; VAL [\old(x)=4286578691, \old(y)=4286578693, \result=4286578693, x=4286578691, y=4286578693] [L56] RET, EXPR fmin_float(x, y) VAL [fmin_float(x, y)=4286578693, x=4286578691, y=4286578693] [L56] float res = fmin_float(x, y); [L58] CALL, EXPR isnan_float(res) VAL [\old(x)=4286578693] [L44] return x != x; VAL [\old(x)=4286578693, \result=0, x=4286578693] [L58] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=4286578693, x=4286578691, y=4286578693] [L58] COND TRUE !isnan_float(res) [L59] __VERIFIER_error() VAL [res=4286578693, x=4286578691, y=4286578693] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, 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, 0.3s 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, 0.1s 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...