/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:34:42,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:34:42,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:34:42,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 00:34:42,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 00:34:42,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 00:34:42,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 00:34:42,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 00:34:42,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 00:34:42,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 00:34:42,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 00:34:42,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 00:34:42,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:34:42,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:34:42,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:34:42,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:34:42,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:34:42,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:34:42,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:34:42,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:34:42,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:34:42,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:34:42,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:34:42,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:34:42,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:34:42,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 00:34:42,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 00:34:42,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 00:34:42,410 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 00:34:42,422 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:34:42,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:34:42,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:34:42,424 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:34:42,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:34:42,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:34:42,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:34:42,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:34:42,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:34:42,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:34:42,426 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:34:42,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:34:42,426 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:34:42,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:34:42,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:34:42,426 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:34:42,427 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:34:42,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:34:42,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:34:42,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:34:42,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:34:42,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:34:42,428 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:34:42,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:34:42,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:34:42,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:34:42,883 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:34:42,883 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:34:42,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c [2020-10-24 00:34:42,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/496e62dd1/dddd2f069e444486a905dcec875c1839/FLAG41aadb216 [2020-10-24 00:34:43,501 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:34:43,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c [2020-10-24 00:34:43,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/496e62dd1/dddd2f069e444486a905dcec875c1839/FLAG41aadb216 [2020-10-24 00:34:43,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/496e62dd1/dddd2f069e444486a905dcec875c1839 [2020-10-24 00:34:43,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:34:43,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:34:43,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:34:43,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:34:43,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:34:43,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:34:43" (1/1) ... [2020-10-24 00:34:43,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a16208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:43, skipping insertion in model container [2020-10-24 00:34:43,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:34:43" (1/1) ... [2020-10-24 00:34:43,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:34:43,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:34:44,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:34:44,136 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:34:44,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:34:44,207 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:34:44,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44 WrapperNode [2020-10-24 00:34:44,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:34:44,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:34:44,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:34:44,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:34:44,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (1/1) ... [2020-10-24 00:34:44,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:34:44,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:34:44,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:34:44,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:34:44,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (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 [2020-10-24 00:34:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:34:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:34:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:34:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-10-24 00:34:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2020-10-24 00:34:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-10-24 00:34:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:34:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:34:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:34:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:34:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:34:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-24 00:34:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-10-24 00:34:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 00:34:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:34:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:34:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2020-10-24 00:34:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-10-24 00:34:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:34:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:34:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:34:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:34:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:34:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 00:34:44,980 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:34:44,981 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-24 00:34:44,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:34:44 BoogieIcfgContainer [2020-10-24 00:34:44,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:34:44,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:34:44,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:34:44,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:34:44,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:34:43" (1/3) ... [2020-10-24 00:34:44,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c6431a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:34:44, skipping insertion in model container [2020-10-24 00:34:44,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:44" (2/3) ... [2020-10-24 00:34:44,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c6431a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:34:44, skipping insertion in model container [2020-10-24 00:34:44,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:34:44" (3/3) ... [2020-10-24 00:34:44,997 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232b.c [2020-10-24 00:34:45,013 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:34:45,019 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:34:45,032 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:34:45,066 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:34:45,066 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:34:45,066 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:34:45,067 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:34:45,067 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:34:45,067 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:34:45,068 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:34:45,068 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:34:45,094 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states. [2020-10-24 00:34:45,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-24 00:34:45,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:45,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:34:45,110 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:45,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:45,116 INFO L82 PathProgramCache]: Analyzing trace with hash 3196274, now seen corresponding path program 1 times [2020-10-24 00:34:45,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:45,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852420293] [2020-10-24 00:34:45,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:45,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:34:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:45,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-24 00:34:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:45,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:34:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:45,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:34:45,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852420293] [2020-10-24 00:34:45,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:34:45,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 00:34:45,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118539694] [2020-10-24 00:34:45,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 00:34:45,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:34:45,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 00:34:45,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 00:34:45,482 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 4 states. [2020-10-24 00:34:46,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:34:46,097 INFO L93 Difference]: Finished difference Result 173 states and 202 transitions. [2020-10-24 00:34:46,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 00:34:46,100 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-24 00:34:46,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:34:46,111 INFO L225 Difference]: With dead ends: 173 [2020-10-24 00:34:46,111 INFO L226 Difference]: Without dead ends: 87 [2020-10-24 00:34:46,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 00:34:46,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-24 00:34:46,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-24 00:34:46,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-24 00:34:46,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2020-10-24 00:34:46,182 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 40 [2020-10-24 00:34:46,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:34:46,183 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2020-10-24 00:34:46,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 00:34:46,183 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2020-10-24 00:34:46,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-24 00:34:46,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:46,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:34:46,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:34:46,187 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:46,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:46,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1077827938, now seen corresponding path program 1 times [2020-10-24 00:34:46,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:46,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469681821] [2020-10-24 00:34:46,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:46,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:34:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:46,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-24 00:34:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:46,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:34:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:46,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:34:46,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469681821] [2020-10-24 00:34:46,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:34:46,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 00:34:46,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758204247] [2020-10-24 00:34:46,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 00:34:46,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:34:46,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 00:34:46,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:34:46,535 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 6 states. [2020-10-24 00:34:47,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:34:47,013 INFO L93 Difference]: Finished difference Result 124 states and 134 transitions. [2020-10-24 00:34:47,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 00:34:47,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-10-24 00:34:47,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:34:47,018 INFO L225 Difference]: With dead ends: 124 [2020-10-24 00:34:47,018 INFO L226 Difference]: Without dead ends: 92 [2020-10-24 00:34:47,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-24 00:34:47,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-24 00:34:47,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2020-10-24 00:34:47,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-24 00:34:47,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-10-24 00:34:47,042 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 49 [2020-10-24 00:34:47,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:34:47,042 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-10-24 00:34:47,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 00:34:47,043 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-10-24 00:34:47,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-24 00:34:47,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:47,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:34:47,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 00:34:47,046 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:47,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:47,046 INFO L82 PathProgramCache]: Analyzing trace with hash -449859217, now seen corresponding path program 1 times [2020-10-24 00:34:47,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:47,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728711659] [2020-10-24 00:34:47,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:47,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:34:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:47,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-24 00:34:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:47,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:34:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:47,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:34:47,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728711659] [2020-10-24 00:34:47,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:34:47,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 00:34:47,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798956470] [2020-10-24 00:34:47,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 00:34:47,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:34:47,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 00:34:47,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:34:47,271 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand 6 states. [2020-10-24 00:34:47,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:34:47,692 INFO L93 Difference]: Finished difference Result 128 states and 139 transitions. [2020-10-24 00:34:47,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 00:34:47,692 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-10-24 00:34:47,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:34:47,694 INFO L225 Difference]: With dead ends: 128 [2020-10-24 00:34:47,695 INFO L226 Difference]: Without dead ends: 96 [2020-10-24 00:34:47,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-24 00:34:47,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-24 00:34:47,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2020-10-24 00:34:47,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-24 00:34:47,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-10-24 00:34:47,712 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 52 [2020-10-24 00:34:47,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:34:47,712 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-10-24 00:34:47,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 00:34:47,713 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-10-24 00:34:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-24 00:34:47,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:47,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:34:47,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 00:34:47,715 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:47,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:47,716 INFO L82 PathProgramCache]: Analyzing trace with hash 162019631, now seen corresponding path program 1 times [2020-10-24 00:34:47,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:47,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628189732] [2020-10-24 00:34:47,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:34:47,743 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:34:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:34:47,766 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:34:47,814 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:34:47,814 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:34:47,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 00:34:47,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:34:47 BoogieIcfgContainer [2020-10-24 00:34:47,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:34:47,913 INFO L168 Benchmark]: Toolchain (without parser) took 4038.38 ms. Allocated memory was 151.0 MB in the beginning and 203.4 MB in the end (delta: 52.4 MB). Free memory was 108.5 MB in the beginning and 103.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 58.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:47,914 INFO L168 Benchmark]: CDTParser took 1.04 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:34:47,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.21 ms. Allocated memory is still 151.0 MB. Free memory was 107.7 MB in the beginning and 97.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:47,918 INFO L168 Benchmark]: Boogie Preprocessor took 49.43 ms. Allocated memory is still 151.0 MB. Free memory was 97.6 MB in the beginning and 95.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:47,921 INFO L168 Benchmark]: RCFGBuilder took 725.17 ms. Allocated memory is still 151.0 MB. Free memory was 95.7 MB in the beginning and 112.9 MB in the end (delta: -17.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:47,924 INFO L168 Benchmark]: TraceAbstraction took 2919.26 ms. Allocated memory was 151.0 MB in the beginning and 203.4 MB in the end (delta: 52.4 MB). Free memory was 112.4 MB in the beginning and 103.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 62.3 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:47,931 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 330.21 ms. Allocated memory is still 151.0 MB. Free memory was 107.7 MB in the beginning and 97.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 49.43 ms. Allocated memory is still 151.0 MB. Free memory was 97.6 MB in the beginning and 95.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 725.17 ms. Allocated memory is still 151.0 MB. Free memory was 95.7 MB in the beginning and 112.9 MB in the end (delta: -17.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2919.26 ms. Allocated memory was 151.0 MB in the beginning and 203.4 MB in the end (delta: 52.4 MB). Free memory was 112.4 MB in the beginning and 103.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 62.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 71, overapproximation of someUnaryFLOAToperation at line 66. Possible FailurePath: [L66] float x = -0.0f; [L67] float y = 0.0f; VAL [y=0] [L68] CALL, EXPR fmin_float(x, y) VAL [\old(x)=2139095049, \old(y)=0] [L38] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2139095049] [L15] __uint32_t w; VAL [\old(x)=2139095049, x=2139095049] [L18] ieee_float_shape_type gf_u; VAL [\old(x)=2139095049, gf_u={3:0}, x=2139095049] [L19] gf_u.value = (x) VAL [\old(x)=2139095049, gf_u={3:0}, x=2139095049] [L20] EXPR gf_u.word VAL [\old(x)=2139095049, gf_u={3:0}, gf_u.word=2139095041, x=2139095049] [L20] (w) = gf_u.word VAL [(w) = gf_u.word=2139095046, \old(x)=2139095049, gf_u={3:0}, gf_u.word=2139095041, w=2139095041, x=2139095049] [L23] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=2139095049, w=2139095041, x=2139095049] [L25-L26] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=2139095049, w=2139095041, x=2139095049] [L28-L29] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=2139095049, w=2139095041, x=2139095049] [L31] COND FALSE !(w == 0x7f800000 || w == 0xff800000) VAL [\old(x)=2139095049, w=2139095041, x=2139095049] [L34] return 0; VAL [\old(x)=2139095049, \result=0, w=2139095041, x=2139095049] [L38] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2139095049, \old(y)=0, __fpclassify_float(x)=0, x=2139095049, y=0] [L38] COND TRUE __fpclassify_float(x) == 0 VAL [\old(x)=2139095049, \old(y)=0, __fpclassify_float(x)=0, x=2139095049, y=0] [L39] return y; VAL [\old(x)=2139095049, \old(y)=0, \result=0, x=2139095049, y=0] [L68] RET, EXPR fmin_float(x, y) VAL [fmin_float(x, y)=0, x=2139095049, y=0] [L68] float res = fmin_float(x, y); VAL [fmin_float(x, y)=0, res=0, x=2139095049, y=0] [L71] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=0, res == -0.0f && __signbit_float(res) == 1=0, x=2139095049, y=0] [L71] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) VAL [res=0, res == -0.0f && __signbit_float(res) == 1=0, x=2139095049, y=0] [L72] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_1232b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 285 SDtfs, 59 SDslu, 511 SDs, 0 SdLazy, 383 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 14670 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...