/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/float_req_bl_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 10:40:13,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 10:40:13,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 10:40:13,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 10:40:13,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 10:40:13,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 10:40:13,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 10:40:13,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 10:40:13,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 10:40:13,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 10:40:13,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 10:40:13,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 10:40:13,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 10:40:13,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 10:40:13,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 10:40:13,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 10:40:13,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 10:40:13,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 10:40:13,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 10:40:13,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 10:40:13,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 10:40:13,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 10:40:13,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 10:40:13,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 10:40:13,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 10:40:13,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 10:40:13,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 10:40:13,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 10:40:13,934 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 [2020-07-21 10:40:13,962 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 10:40:13,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 10:40:13,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 10:40:13,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 10:40:13,964 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 10:40:13,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 10:40:13,965 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 10:40:13,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 10:40:13,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 10:40:13,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 10:40:13,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 10:40:13,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 10:40:13,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 10:40:13,966 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 10:40:13,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 10:40:13,967 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 10:40:13,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 10:40:13,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 10:40:13,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 10:40:13,967 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 10:40:13,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 10:40:13,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:40:13,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 10:40:13,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 10:40:13,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 10:40:13,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 10:40:13,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:40:13,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 10:40:13,969 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 10:40:13,969 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 [2020-07-21 10:40:14,244 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 10:40:14,256 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 10:40:14,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 10:40:14,261 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 10:40:14,261 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 10:40:14,262 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1230.c [2020-07-21 10:40:14,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/588fe56ba/f7f6fa8312be427cad2f927595aabe32/FLAG5f2bc42f9 [2020-07-21 10:40:14,780 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 10:40:14,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1230.c [2020-07-21 10:40:14,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/588fe56ba/f7f6fa8312be427cad2f927595aabe32/FLAG5f2bc42f9 [2020-07-21 10:40:15,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/588fe56ba/f7f6fa8312be427cad2f927595aabe32 [2020-07-21 10:40:15,130 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 10:40:15,133 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 10:40:15,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 10:40:15,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 10:40:15,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 10:40:15,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:40:15" (1/1) ... [2020-07-21 10:40:15,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d14c7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:15, skipping insertion in model container [2020-07-21 10:40:15,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:40:15" (1/1) ... [2020-07-21 10:40:15,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 10:40:15,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 10:40:15,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:40:15,338 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 10:40:15,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:40:15,382 INFO L208 MainTranslator]: Completed translation [2020-07-21 10:40:15,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:15 WrapperNode [2020-07-21 10:40:15,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 10:40:15,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 10:40:15,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 10:40:15,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 10:40:15,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:15" (1/1) ... [2020-07-21 10:40:15,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:15" (1/1) ... [2020-07-21 10:40:15,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:15" (1/1) ... [2020-07-21 10:40:15,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:15" (1/1) ... [2020-07-21 10:40:15,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:15" (1/1) ... [2020-07-21 10:40:15,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:15" (1/1) ... [2020-07-21 10:40:15,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:15" (1/1) ... [2020-07-21 10:40:15,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 10:40:15,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 10:40:15,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 10:40:15,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 10:40:15,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:15" (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 [2020-07-21 10:40:15,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 10:40:15,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 10:40:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-07-21 10:40:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2020-07-21 10:40:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-21 10:40:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 10:40:15,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 10:40:15,561 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-07-21 10:40:15,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 10:40:15,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-21 10:40:15,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 10:40:15,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 10:40:15,562 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2020-07-21 10:40:15,562 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-21 10:40:15,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 10:40:15,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 10:40:15,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 10:40:15,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 10:40:15,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-21 10:40:15,825 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 10:40:15,826 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-21 10:40:15,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:40:15 BoogieIcfgContainer [2020-07-21 10:40:15,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 10:40:15,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 10:40:15,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 10:40:15,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 10:40:15,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:40:15" (1/3) ... [2020-07-21 10:40:15,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a929f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:40:15, skipping insertion in model container [2020-07-21 10:40:15,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:15" (2/3) ... [2020-07-21 10:40:15,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a929f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:40:15, skipping insertion in model container [2020-07-21 10:40:15,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:40:15" (3/3) ... [2020-07-21 10:40:15,841 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2020-07-21 10:40:15,853 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 10:40:15,864 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 10:40:15,882 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 10:40:15,911 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 10:40:15,912 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 10:40:15,912 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 10:40:15,912 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 10:40:15,912 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 10:40:15,913 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 10:40:15,913 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 10:40:15,913 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 10:40:15,937 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-21 10:40:15,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-21 10:40:15,945 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:40:15,946 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] [2020-07-21 10:40:15,947 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:40:15,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:40:15,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1674881228, now seen corresponding path program 1 times [2020-07-21 10:40:15,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:40:15,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607588792] [2020-07-21 10:40:15,964 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 [2020-07-21 10:40:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:40:16,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 10:40:16,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:40:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:40:16,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:40:16,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607588792] [2020-07-21 10:40:16,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:40:16,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 10:40:16,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949738495] [2020-07-21 10:40:16,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 10:40:16,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:40:16,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 10:40:16,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:40:16,129 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-07-21 10:40:16,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:40:16,154 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2020-07-21 10:40:16,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 10:40:16,156 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2020-07-21 10:40:16,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:40:16,165 INFO L225 Difference]: With dead ends: 71 [2020-07-21 10:40:16,165 INFO L226 Difference]: Without dead ends: 36 [2020-07-21 10:40:16,169 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 [2020-07-21 10:40:16,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-07-21 10:40:16,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-07-21 10:40:16,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-21 10:40:16,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-07-21 10:40:16,213 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2020-07-21 10:40:16,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:40:16,214 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-07-21 10:40:16,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 10:40:16,214 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-07-21 10:40:16,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-21 10:40:16,217 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:40:16,217 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] [2020-07-21 10:40:16,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:40:16,432 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:40:16,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:40:16,433 INFO L82 PathProgramCache]: Analyzing trace with hash 312623789, now seen corresponding path program 1 times [2020-07-21 10:40:16,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:40:16,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181776239] [2020-07-21 10:40:16,434 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 [2020-07-21 10:40:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:40:16,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 10:40:16,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:40:16,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:40:16,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:40:16,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181776239] [2020-07-21 10:40:16,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:40:16,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 10:40:16,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2627984] [2020-07-21 10:40:16,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 10:40:16,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:40:16,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 10:40:16,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 10:40:16,578 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 4 states. [2020-07-21 10:40:16,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:40:16,624 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-07-21 10:40:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 10:40:16,627 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-07-21 10:40:16,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:40:16,630 INFO L225 Difference]: With dead ends: 51 [2020-07-21 10:40:16,630 INFO L226 Difference]: Without dead ends: 40 [2020-07-21 10:40:16,632 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 [2020-07-21 10:40:16,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-07-21 10:40:16,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-07-21 10:40:16,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-21 10:40:16,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-07-21 10:40:16,643 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2020-07-21 10:40:16,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:40:16,643 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-07-21 10:40:16,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 10:40:16,644 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-07-21 10:40:16,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-21 10:40:16,645 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:40:16,646 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] [2020-07-21 10:40:16,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:40:16,855 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:40:16,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:40:16,856 INFO L82 PathProgramCache]: Analyzing trace with hash -409741261, now seen corresponding path program 1 times [2020-07-21 10:40:16,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:40:16,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671893328] [2020-07-21 10:40:16,858 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 [2020-07-21 10:40:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:40:16,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 10:40:16,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:40:16,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:40:16,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:40:16,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671893328] [2020-07-21 10:40:16,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:40:16,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 10:40:16,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752077564] [2020-07-21 10:40:16,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 10:40:16,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:40:16,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 10:40:16,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 10:40:16,965 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 4 states. [2020-07-21 10:40:17,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:40:17,006 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-07-21 10:40:17,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 10:40:17,007 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-07-21 10:40:17,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:40:17,010 INFO L225 Difference]: With dead ends: 55 [2020-07-21 10:40:17,010 INFO L226 Difference]: Without dead ends: 44 [2020-07-21 10:40:17,011 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 [2020-07-21 10:40:17,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-21 10:40:17,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-07-21 10:40:17,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-21 10:40:17,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-07-21 10:40:17,029 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30 [2020-07-21 10:40:17,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:40:17,029 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-07-21 10:40:17,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 10:40:17,030 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-07-21 10:40:17,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-21 10:40:17,035 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:40:17,036 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] [2020-07-21 10:40:17,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:40:17,238 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:40:17,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:40:17,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1097810548, now seen corresponding path program 1 times [2020-07-21 10:40:17,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:40:17,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519448810] [2020-07-21 10:40:17,241 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 [2020-07-21 10:40:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:40:17,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:40:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:40:17,334 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:40:17,358 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 10:40:17,358 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 10:40:17,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:40:17,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:40:17 BoogieIcfgContainer [2020-07-21 10:40:17,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 10:40:17,603 INFO L168 Benchmark]: Toolchain (without parser) took 2471.10 ms. Allocated memory was 146.8 MB in the beginning and 233.8 MB in the end (delta: 87.0 MB). Free memory was 102.8 MB in the beginning and 198.7 MB in the end (delta: -95.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 10:40:17,604 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.7 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 10:40:17,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.83 ms. Allocated memory is still 146.8 MB. Free memory was 102.4 MB in the beginning and 91.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-21 10:40:17,606 INFO L168 Benchmark]: Boogie Preprocessor took 120.05 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 91.7 MB in the beginning and 182.5 MB in the end (delta: -90.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-21 10:40:17,607 INFO L168 Benchmark]: RCFGBuilder took 326.49 ms. Allocated memory is still 205.0 MB. Free memory was 182.5 MB in the beginning and 164.2 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2020-07-21 10:40:17,608 INFO L168 Benchmark]: TraceAbstraction took 1769.30 ms. Allocated memory was 205.0 MB in the beginning and 233.8 MB in the end (delta: 28.8 MB). Free memory was 163.6 MB in the beginning and 198.7 MB in the end (delta: -35.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 10:40:17,611 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.7 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.83 ms. Allocated memory is still 146.8 MB. Free memory was 102.4 MB in the beginning and 91.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.05 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 91.7 MB in the beginning and 182.5 MB in the end (delta: -90.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 326.49 ms. Allocated memory is still 205.0 MB. Free memory was 182.5 MB in the beginning and 164.2 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1769.30 ms. Allocated memory was 205.0 MB in the beginning and 233.8 MB in the end (delta: 28.8 MB). Free memory was 163.6 MB in the beginning and 198.7 MB in the end (delta: -35.2 MB). There was no memory consumed. 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)=3, \old(y)=4] [L35] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=3] [L12] __uint32_t w; VAL [\old(x)=3, x=3] [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)=3, w=2139095041, x=3] [L22-L23] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=3, w=2139095041, x=3] [L25-L26] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=3, w=2139095041, x=3] [L28] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L31] return 0; VAL [\old(x)=3, \result=0, w=2139095041, x=3] [L35] RET, EXPR __fpclassify_float(x) VAL [\old(x)=3, \old(y)=4, __fpclassify_float(x)=0, x=3, y=4] [L35] COND TRUE __fpclassify_float(x) == 0 [L36] return y; VAL [\old(x)=3, \old(y)=4, \result=4, x=3, y=4] [L56] RET, EXPR fmin_float(x, y) VAL [fmin_float(x, y)=4, x=3, y=4] [L56] float res = fmin_float(x, y); [L58] CALL, EXPR isnan_float(res) VAL [\old(x)=4] [L44] return x != x; VAL [\old(x)=4, \result=0, x=4] [L58] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=4, x=3, y=4] [L58] COND TRUE !isnan_float(res) [L59] __VERIFIER_error() VAL [res=4, x=3, y=4] - 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: 0.1s, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 2582 SizeOfPredicates, 0 NumberOfNonLiveVariables, 307 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...