/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 21:58:11,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 21:58:11,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 21:58:11,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 21:58:11,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 21:58:11,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 21:58:11,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 21:58:11,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 21:58:11,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 21:58:11,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 21:58:11,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 21:58:11,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 21:58:11,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 21:58:11,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 21:58:11,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 21:58:11,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 21:58:11,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 21:58:11,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 21:58:11,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 21:58:11,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 21:58:11,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 21:58:11,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 21:58:11,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 21:58:11,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 21:58:12,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 21:58:12,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 21:58:12,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 21:58:12,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 21:58:12,023 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 [2020-11-06 21:58:12,081 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 21:58:12,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 21:58:12,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 21:58:12,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 21:58:12,085 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 21:58:12,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 21:58:12,086 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 21:58:12,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 21:58:12,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 21:58:12,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 21:58:12,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 21:58:12,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 21:58:12,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 21:58:12,088 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 21:58:12,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 21:58:12,089 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 21:58:12,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 21:58:12,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 21:58:12,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 21:58:12,089 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 21:58:12,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 21:58:12,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 21:58:12,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 21:58:12,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 21:58:12,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 21:58:12,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 21:58:12,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 21:58:12,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 21:58:12,091 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 21:58:12,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 21:58:12,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 21:58:12,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 21:58:12,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 21:58:12,564 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 21:58:12,565 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 21:58:12,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c [2020-11-06 21:58:12,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68051a71e/3dc1f07f5a1a44c98337aa6fc26aa761/FLAGf52f2f2f6 [2020-11-06 21:58:13,337 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 21:58:13,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232b.c [2020-11-06 21:58:13,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68051a71e/3dc1f07f5a1a44c98337aa6fc26aa761/FLAGf52f2f2f6 [2020-11-06 21:58:13,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68051a71e/3dc1f07f5a1a44c98337aa6fc26aa761 [2020-11-06 21:58:13,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 21:58:13,389 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 21:58:13,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 21:58:13,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 21:58:13,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 21:58:13,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:13" (1/1) ... [2020-11-06 21:58:13,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c27db08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:13, skipping insertion in model container [2020-11-06 21:58:13,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:13" (1/1) ... [2020-11-06 21:58:13,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 21:58:13,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 21:58:13,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:58:13,662 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 21:58:13,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:58:13,708 INFO L208 MainTranslator]: Completed translation [2020-11-06 21:58:13,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:13 WrapperNode [2020-11-06 21:58:13,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 21:58:13,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 21:58:13,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 21:58:13,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 21:58:13,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:13" (1/1) ... [2020-11-06 21:58:13,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:13" (1/1) ... [2020-11-06 21:58:13,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:13" (1/1) ... [2020-11-06 21:58:13,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:13" (1/1) ... [2020-11-06 21:58:13,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:13" (1/1) ... [2020-11-06 21:58:13,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:13" (1/1) ... [2020-11-06 21:58:13,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:13" (1/1) ... [2020-11-06 21:58:13,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 21:58:13,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 21:58:13,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 21:58:13,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 21:58:13,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:13" (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 [2020-11-06 21:58:13,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 21:58:13,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 21:58:13,843 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 21:58:13,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-11-06 21:58:13,843 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2020-11-06 21:58:13,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-11-06 21:58:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 21:58:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 21:58:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 21:58:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 21:58:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 21:58:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-11-06 21:58:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-11-06 21:58:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-06 21:58:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 21:58:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 21:58:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2020-11-06 21:58:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-11-06 21:58:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 21:58:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 21:58:13,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 21:58:13,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 21:58:13,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 21:58:13,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-06 21:58:14,413 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 21:58:14,414 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-06 21:58:14,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:14 BoogieIcfgContainer [2020-11-06 21:58:14,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 21:58:14,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 21:58:14,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 21:58:14,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 21:58:14,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:58:13" (1/3) ... [2020-11-06 21:58:14,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c3c1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:14, skipping insertion in model container [2020-11-06 21:58:14,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:13" (2/3) ... [2020-11-06 21:58:14,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c3c1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:14, skipping insertion in model container [2020-11-06 21:58:14,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:14" (3/3) ... [2020-11-06 21:58:14,425 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232b.c [2020-11-06 21:58:14,440 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 21:58:14,444 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 21:58:14,457 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 21:58:14,485 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 21:58:14,485 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 21:58:14,485 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 21:58:14,485 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 21:58:14,485 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 21:58:14,486 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 21:58:14,486 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 21:58:14,486 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 21:58:14,504 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-11-06 21:58:14,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-06 21:58:14,510 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:58:14,511 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] [2020-11-06 21:58:14,511 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:58:14,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:58:14,518 INFO L82 PathProgramCache]: Analyzing trace with hash 151569813, now seen corresponding path program 1 times [2020-11-06 21:58:14,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:58:14,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816287998] [2020-11-06 21:58:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:58:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:14,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:58:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:14,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 21:58:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:14,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 21:58:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:58:14,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816287998] [2020-11-06 21:58:14,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:58:14,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 21:58:14,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410420399] [2020-11-06 21:58:14,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 21:58:14,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:58:14,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 21:58:14,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 21:58:14,855 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 4 states. [2020-11-06 21:58:15,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:58:15,116 INFO L93 Difference]: Finished difference Result 84 states and 113 transitions. [2020-11-06 21:58:15,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 21:58:15,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-11-06 21:58:15,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:58:15,127 INFO L225 Difference]: With dead ends: 84 [2020-11-06 21:58:15,128 INFO L226 Difference]: Without dead ends: 41 [2020-11-06 21:58:15,131 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 [2020-11-06 21:58:15,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-06 21:58:15,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-06 21:58:15,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-06 21:58:15,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-11-06 21:58:15,183 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 23 [2020-11-06 21:58:15,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:58:15,183 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-11-06 21:58:15,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 21:58:15,184 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-11-06 21:58:15,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-06 21:58:15,186 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:58:15,186 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] [2020-11-06 21:58:15,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 21:58:15,187 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:58:15,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:58:15,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1776539675, now seen corresponding path program 1 times [2020-11-06 21:58:15,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:58:15,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681539239] [2020-11-06 21:58:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:58:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:15,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:58:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:15,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 21:58:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:15,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 21:58:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:15,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:58:15,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681539239] [2020-11-06 21:58:15,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:58:15,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 21:58:15,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227407820] [2020-11-06 21:58:15,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-06 21:58:15,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:58:15,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-06 21:58:15,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-06 21:58:15,493 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 6 states. [2020-11-06 21:58:15,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:58:15,785 INFO L93 Difference]: Finished difference Result 61 states and 71 transitions. [2020-11-06 21:58:15,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 21:58:15,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-06 21:58:15,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:58:15,790 INFO L225 Difference]: With dead ends: 61 [2020-11-06 21:58:15,790 INFO L226 Difference]: Without dead ends: 45 [2020-11-06 21:58:15,791 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 [2020-11-06 21:58:15,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-06 21:58:15,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-06 21:58:15,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-06 21:58:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2020-11-06 21:58:15,807 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 24 [2020-11-06 21:58:15,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:58:15,808 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2020-11-06 21:58:15,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-06 21:58:15,808 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2020-11-06 21:58:15,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-06 21:58:15,809 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:58:15,810 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] [2020-11-06 21:58:15,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 21:58:15,810 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:58:15,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:58:15,811 INFO L82 PathProgramCache]: Analyzing trace with hash -624344114, now seen corresponding path program 1 times [2020-11-06 21:58:15,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:58:15,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652931198] [2020-11-06 21:58:15,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:58:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:15,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:58:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:15,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 21:58:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:15,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 21:58:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:58:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:58:16,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652931198] [2020-11-06 21:58:16,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:58:16,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 21:58:16,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95852188] [2020-11-06 21:58:16,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-06 21:58:16,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:58:16,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-06 21:58:16,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-06 21:58:16,040 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand 6 states. [2020-11-06 21:58:16,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:58:16,290 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2020-11-06 21:58:16,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 21:58:16,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-11-06 21:58:16,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:58:16,293 INFO L225 Difference]: With dead ends: 65 [2020-11-06 21:58:16,293 INFO L226 Difference]: Without dead ends: 49 [2020-11-06 21:58:16,294 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 [2020-11-06 21:58:16,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-11-06 21:58:16,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2020-11-06 21:58:16,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-06 21:58:16,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2020-11-06 21:58:16,305 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 27 [2020-11-06 21:58:16,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:58:16,306 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2020-11-06 21:58:16,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-06 21:58:16,306 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2020-11-06 21:58:16,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-06 21:58:16,307 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:58:16,307 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] [2020-11-06 21:58:16,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 21:58:16,308 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:58:16,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:58:16,309 INFO L82 PathProgramCache]: Analyzing trace with hash -495261395, now seen corresponding path program 1 times [2020-11-06 21:58:16,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:58:16,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595177985] [2020-11-06 21:58:16,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:58:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:58:16,339 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:58:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:58:16,378 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:58:16,431 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 21:58:16,431 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 21:58:16,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 21:58:16,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:58:16 BoogieIcfgContainer [2020-11-06 21:58:16,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 21:58:16,502 INFO L168 Benchmark]: Toolchain (without parser) took 3115.98 ms. Allocated memory was 160.4 MB in the beginning and 202.4 MB in the end (delta: 41.9 MB). Free memory was 136.2 MB in the beginning and 143.7 MB in the end (delta: -7.5 MB). Peak memory consumption was 35.2 MB. Max. memory is 8.0 GB. [2020-11-06 21:58:16,503 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 160.4 MB. Free memory is still 132.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 21:58:16,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.80 ms. Allocated memory is still 160.4 MB. Free memory was 135.4 MB in the beginning and 125.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-06 21:58:16,507 INFO L168 Benchmark]: Boogie Preprocessor took 45.63 ms. Allocated memory is still 160.4 MB. Free memory was 125.3 MB in the beginning and 123.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-06 21:58:16,509 INFO L168 Benchmark]: RCFGBuilder took 659.07 ms. Allocated memory is still 160.4 MB. Free memory was 123.6 MB in the beginning and 142.3 MB in the end (delta: -18.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-06 21:58:16,512 INFO L168 Benchmark]: TraceAbstraction took 2080.62 ms. Allocated memory was 160.4 MB in the beginning and 202.4 MB in the end (delta: 41.9 MB). Free memory was 141.7 MB in the beginning and 143.7 MB in the end (delta: -1.9 MB). Peak memory consumption was 41.6 MB. Max. memory is 8.0 GB. [2020-11-06 21:58:16,521 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 160.4 MB. Free memory is still 132.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 315.80 ms. Allocated memory is still 160.4 MB. Free memory was 135.4 MB in the beginning and 125.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.63 ms. Allocated memory is still 160.4 MB. Free memory was 125.3 MB in the beginning and 123.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 659.07 ms. Allocated memory is still 160.4 MB. Free memory was 123.6 MB in the beginning and 142.3 MB in the end (delta: -18.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2080.62 ms. Allocated memory was 160.4 MB in the beginning and 202.4 MB in the end (delta: 41.9 MB). Free memory was 141.7 MB in the beginning and 143.7 MB in the end (delta: -1.9 MB). Peak memory consumption was 41.6 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)=2139095043, \old(y)=0] [L38] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2139095043] [L15] __uint32_t w; VAL [\old(x)=2139095043, x=2139095043] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=2139095043, w=2139095041, x=2139095043] [L25-L26] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=2139095043, w=2139095041, x=2139095043] [L28-L29] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=2139095043, w=2139095041, x=2139095043] [L31] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L34] return 0; VAL [\old(x)=2139095043, \result=0, w=2139095041, x=2139095043] [L38] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2139095043, \old(y)=0, __fpclassify_float(x)=0, x=2139095043, y=0] [L38] COND TRUE __fpclassify_float(x) == 0 [L39] return y; VAL [\old(x)=2139095043, \old(y)=0, \result=0, x=2139095043, y=0] [L68] RET, EXPR fmin_float(x, y) VAL [fmin_float(x, y)=0, x=2139095043, y=0] [L68] float res = fmin_float(x, y); [L71] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=0, res == -0.0f && __signbit_float(res) == 1=0, x=2139095043, y=0] [L71] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [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, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 138 SDtfs, 30 SDslu, 251 SDs, 0 SdLazy, 181 SolverSat, 38 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, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 5915 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...