/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:11:34,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:11:34,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:11:34,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:11:34,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:11:34,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:11:34,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:11:34,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:11:34,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:11:34,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:11:34,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:11:34,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:11:34,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:11:34,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:11:34,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:11:34,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:11:34,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:11:34,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:11:34,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:11:34,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:11:34,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:11:34,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:11:34,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:11:34,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:11:34,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 16:11:34,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 16:11:34,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 16:11:34,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 16:11:34,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 16:11:34,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 16:11:34,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 16:11:34,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 16:11:34,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 16:11:34,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 16:11:34,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 16:11:34,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 16:11:34,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 16:11:34,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 16:11:34,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:11:34,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:11:35,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:11:35,006 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:11:35,028 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:11:35,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:11:35,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:11:35,030 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:11:35,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:11:35,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:11:35,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:11:35,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:11:35,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:11:35,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:11:35,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:11:35,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:11:35,033 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:11:35,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:11:35,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:11:35,034 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:11:35,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:11:35,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:11:35,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:11:35,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:11:35,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:11:35,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:11:35,035 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:11:35,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:11:35,475 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:11:35,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:11:35,481 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:11:35,481 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:11:35,483 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c [2020-09-04 16:11:35,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba719455f/1248f83c2a1d4c8288a5b86c92b5e2c9/FLAG8919f8f52 [2020-09-04 16:11:36,115 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:11:36,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c [2020-09-04 16:11:36,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba719455f/1248f83c2a1d4c8288a5b86c92b5e2c9/FLAG8919f8f52 [2020-09-04 16:11:36,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba719455f/1248f83c2a1d4c8288a5b86c92b5e2c9 [2020-09-04 16:11:36,473 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:11:36,475 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:11:36,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:11:36,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:11:36,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:11:36,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:11:36" (1/1) ... [2020-09-04 16:11:36,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e46675d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:36, skipping insertion in model container [2020-09-04 16:11:36,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:11:36" (1/1) ... [2020-09-04 16:11:36,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:11:36,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:11:36,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:11:36,759 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:11:36,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:11:36,818 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:11:36,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:36 WrapperNode [2020-09-04 16:11:36,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:11:36,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:11:36,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:11:36,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:11:36,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:36" (1/1) ... [2020-09-04 16:11:36,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:36" (1/1) ... [2020-09-04 16:11:36,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:36" (1/1) ... [2020-09-04 16:11:36,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:36" (1/1) ... [2020-09-04 16:11:36,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:36" (1/1) ... [2020-09-04 16:11:36,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:36" (1/1) ... [2020-09-04 16:11:36,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:36" (1/1) ... [2020-09-04 16:11:36,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:11:36,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:11:36,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:11:36,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:11:36,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 16:11:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:11:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:11:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-09-04 16:11:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2020-09-04 16:11:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-09-04 16:11:37,023 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:11:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:11:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-09-04 16:11:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-09-04 16:11:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 16:11:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 16:11:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:11:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:11:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2020-09-04 16:11:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-09-04 16:11:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:11:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:11:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:11:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:11:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 16:11:37,474 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:11:37,475 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-04 16:11:37,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:11:37 BoogieIcfgContainer [2020-09-04 16:11:37,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:11:37,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:11:37,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:11:37,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:11:37,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:11:36" (1/3) ... [2020-09-04 16:11:37,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2563ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:11:37, skipping insertion in model container [2020-09-04 16:11:37,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:11:36" (2/3) ... [2020-09-04 16:11:37,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2563ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:11:37, skipping insertion in model container [2020-09-04 16:11:37,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:11:37" (3/3) ... [2020-09-04 16:11:37,493 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232b.c [2020-09-04 16:11:37,505 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:11:37,517 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:11:37,542 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:11:37,582 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:11:37,582 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:11:37,582 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:11:37,583 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:11:37,583 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:11:37,583 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:11:37,583 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:11:37,584 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:11:37,619 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-09-04 16:11:37,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-04 16:11:37,644 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:37,646 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, 1, 1, 1, 1] [2020-09-04 16:11:37,647 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:37,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:37,655 INFO L82 PathProgramCache]: Analyzing trace with hash -380814032, now seen corresponding path program 1 times [2020-09-04 16:11:37,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:37,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056251779] [2020-09-04 16:11:37,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:37,756 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:37,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:37,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:11:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:37,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:37,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:11:37,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056251779] [2020-09-04 16:11:37,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:37,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 16:11:37,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467226844] [2020-09-04 16:11:37,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 16:11:37,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:37,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 16:11:37,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:11:38,002 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 4 states. [2020-09-04 16:11:38,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:38,266 INFO L93 Difference]: Finished difference Result 164 states and 192 transitions. [2020-09-04 16:11:38,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 16:11:38,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-09-04 16:11:38,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:38,283 INFO L225 Difference]: With dead ends: 164 [2020-09-04 16:11:38,283 INFO L226 Difference]: Without dead ends: 81 [2020-09-04 16:11:38,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:11:38,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-04 16:11:38,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-09-04 16:11:38,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-04 16:11:38,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-09-04 16:11:38,357 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 34 [2020-09-04 16:11:38,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:38,358 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-09-04 16:11:38,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 16:11:38,358 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-09-04 16:11:38,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-04 16:11:38,361 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:38,362 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] [2020-09-04 16:11:38,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:11:38,363 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:38,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:38,363 INFO L82 PathProgramCache]: Analyzing trace with hash 133434162, now seen corresponding path program 1 times [2020-09-04 16:11:38,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:38,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [517757037] [2020-09-04 16:11:38,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:38,367 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:38,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:38,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:11:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:38,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:38,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:11:38,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [517757037] [2020-09-04 16:11:38,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:38,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:11:38,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522863760] [2020-09-04 16:11:38,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:11:38,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:38,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:11:38,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:11:38,634 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 6 states. [2020-09-04 16:11:38,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:38,857 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2020-09-04 16:11:38,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:11:38,858 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-09-04 16:11:38,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:38,862 INFO L225 Difference]: With dead ends: 117 [2020-09-04 16:11:38,862 INFO L226 Difference]: Without dead ends: 86 [2020-09-04 16:11:38,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:11:38,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-04 16:11:38,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2020-09-04 16:11:38,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-04 16:11:38,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-09-04 16:11:38,882 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 43 [2020-09-04 16:11:38,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:38,883 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-09-04 16:11:38,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:11:38,883 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-09-04 16:11:38,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-04 16:11:38,884 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:38,885 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] [2020-09-04 16:11:38,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:11:38,885 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:38,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:38,886 INFO L82 PathProgramCache]: Analyzing trace with hash 619089939, now seen corresponding path program 1 times [2020-09-04 16:11:38,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:38,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748925986] [2020-09-04 16:11:38,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:38,888 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:38,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:11:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:38,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 16:11:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:39,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 16:11:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:11:39,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:11:39,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748925986] [2020-09-04 16:11:39,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:11:39,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:11:39,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186275] [2020-09-04 16:11:39,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:11:39,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:11:39,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:11:39,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:11:39,048 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 6 states. [2020-09-04 16:11:39,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:11:39,250 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2020-09-04 16:11:39,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:11:39,251 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-09-04 16:11:39,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:11:39,253 INFO L225 Difference]: With dead ends: 121 [2020-09-04 16:11:39,253 INFO L226 Difference]: Without dead ends: 90 [2020-09-04 16:11:39,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:11:39,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-04 16:11:39,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2020-09-04 16:11:39,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-04 16:11:39,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-09-04 16:11:39,268 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 46 [2020-09-04 16:11:39,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:11:39,268 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-09-04 16:11:39,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:11:39,269 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-09-04 16:11:39,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-04 16:11:39,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:11:39,270 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] [2020-09-04 16:11:39,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:11:39,271 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:11:39,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:11:39,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1331564627, now seen corresponding path program 1 times [2020-09-04 16:11:39,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:11:39,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198969553] [2020-09-04 16:11:39,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:11:39,274 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:11:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:11:39,306 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:11:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:11:39,344 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:11:39,386 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 16:11:39,387 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 16:11:39,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 16:11:39,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:11:39 BoogieIcfgContainer [2020-09-04 16:11:39,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:11:39,416 INFO L168 Benchmark]: Toolchain (without parser) took 2939.54 ms. Allocated memory was 138.9 MB in the beginning and 234.9 MB in the end (delta: 95.9 MB). Free memory was 103.1 MB in the beginning and 121.1 MB in the end (delta: -18.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:39,418 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-04 16:11:39,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.53 ms. Allocated memory is still 138.9 MB. Free memory was 103.1 MB in the beginning and 92.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:39,421 INFO L168 Benchmark]: Boogie Preprocessor took 128.33 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 92.1 MB in the beginning and 179.2 MB in the end (delta: -87.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:39,423 INFO L168 Benchmark]: RCFGBuilder took 531.90 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 155.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:39,430 INFO L168 Benchmark]: TraceAbstraction took 1928.74 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 154.2 MB in the beginning and 121.1 MB in the end (delta: 33.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2020-09-04 16:11:39,441 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 343.53 ms. Allocated memory is still 138.9 MB. Free memory was 103.1 MB in the beginning and 92.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.33 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 92.1 MB in the beginning and 179.2 MB in the end (delta: -87.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 531.90 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 155.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1928.74 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 154.2 MB in the beginning and 121.1 MB in the end (delta: 33.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 70]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 69, overapproximation of someUnaryFLOAToperation at line 64. Possible FailurePath: [L64] float x = -0.0f; [L65] float y = 0.0f; [L66] CALL, EXPR fmin_float(x, y) [L36] CALL, EXPR __fpclassify_float(x) [L13] __uint32_t w; [L16] ieee_float_shape_type gf_u; [L17] gf_u.value = (x) [L18] EXPR gf_u.word [L18] (w) = gf_u.word [L21] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L23-L24] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L26-L27] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L29] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L32] return 0; [L36] RET, EXPR __fpclassify_float(x) [L36] COND TRUE __fpclassify_float(x) == 0 [L37] return y; [L66] RET, EXPR fmin_float(x, y) [L66] float res = fmin_float(x, y); [L69] EXPR res == -0.0f && __signbit_float(res) == 1 [L69] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L70] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 267 SDtfs, 53 SDslu, 494 SDs, 0 SdLazy, 352 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred 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: No data available, 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...