/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_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 17:56:10,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 17:56:10,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 17:56:10,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 17:56:10,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 17:56:10,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 17:56:10,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 17:56:10,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 17:56:10,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 17:56:10,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 17:56:10,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 17:56:10,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 17:56:10,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 17:56:10,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 17:56:10,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 17:56:10,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 17:56:10,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 17:56:10,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 17:56:10,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 17:56:10,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 17:56:10,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 17:56:10,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 17:56:10,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 17:56:10,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 17:56:10,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 17:56:10,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 17:56:10,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 17:56:10,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 17:56:10,146 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 [2020-10-23 17:56:10,208 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 17:56:10,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 17:56:10,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 17:56:10,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 17:56:10,211 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 17:56:10,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 17:56:10,212 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 17:56:10,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 17:56:10,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 17:56:10,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 17:56:10,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 17:56:10,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 17:56:10,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 17:56:10,213 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 17:56:10,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 17:56:10,214 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 17:56:10,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 17:56:10,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 17:56:10,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 17:56:10,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 17:56:10,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 17:56:10,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:56:10,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 17:56:10,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 17:56:10,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 17:56:10,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 17:56:10,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 17:56:10,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 17:56:10,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 17:56:10,217 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 17:56:10,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 17:56:10,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 17:56:10,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 17:56:10,682 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 17:56:10,683 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 17:56:10,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1230.c [2020-10-23 17:56:10,764 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd44f8717/47109b4d766a443a8603f5ab33a6965f/FLAGf7a4d3527 [2020-10-23 17:56:11,526 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 17:56:11,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1230.c [2020-10-23 17:56:11,538 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd44f8717/47109b4d766a443a8603f5ab33a6965f/FLAGf7a4d3527 [2020-10-23 17:56:11,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd44f8717/47109b4d766a443a8603f5ab33a6965f [2020-10-23 17:56:11,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 17:56:11,882 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 17:56:11,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 17:56:11,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 17:56:11,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 17:56:11,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:56:11" (1/1) ... [2020-10-23 17:56:11,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e047d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:11, skipping insertion in model container [2020-10-23 17:56:11,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:56:11" (1/1) ... [2020-10-23 17:56:11,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 17:56:11,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 17:56:12,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:56:12,231 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 17:56:12,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:56:12,307 INFO L208 MainTranslator]: Completed translation [2020-10-23 17:56:12,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:12 WrapperNode [2020-10-23 17:56:12,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 17:56:12,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 17:56:12,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 17:56:12,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 17:56:12,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:12" (1/1) ... [2020-10-23 17:56:12,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:12" (1/1) ... [2020-10-23 17:56:12,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:12" (1/1) ... [2020-10-23 17:56:12,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:12" (1/1) ... [2020-10-23 17:56:12,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:12" (1/1) ... [2020-10-23 17:56:12,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:12" (1/1) ... [2020-10-23 17:56:12,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:12" (1/1) ... [2020-10-23 17:56:12,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 17:56:12,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 17:56:12,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 17:56:12,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 17:56:12,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:12" (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 [2020-10-23 17:56:12,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 17:56:12,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 17:56:12,437 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 17:56:12,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-10-23 17:56:12,437 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2020-10-23 17:56:12,437 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-23 17:56:12,437 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 17:56:12,437 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 17:56:12,438 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 17:56:12,438 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 17:56:12,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 17:56:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-10-23 17:56:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-23 17:56:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 17:56:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 17:56:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2020-10-23 17:56:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-23 17:56:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 17:56:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 17:56:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 17:56:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 17:56:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 17:56:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-23 17:56:12,949 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 17:56:12,950 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-23 17:56:12,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:56:12 BoogieIcfgContainer [2020-10-23 17:56:12,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 17:56:12,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 17:56:12,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 17:56:12,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 17:56:12,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 05:56:11" (1/3) ... [2020-10-23 17:56:12,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b646052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:56:12, skipping insertion in model container [2020-10-23 17:56:12,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:56:12" (2/3) ... [2020-10-23 17:56:12,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b646052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:56:12, skipping insertion in model container [2020-10-23 17:56:12,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:56:12" (3/3) ... [2020-10-23 17:56:12,961 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2020-10-23 17:56:12,974 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 17:56:12,981 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 17:56:12,995 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 17:56:13,026 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 17:56:13,026 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 17:56:13,026 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 17:56:13,027 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 17:56:13,027 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 17:56:13,027 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 17:56:13,027 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 17:56:13,027 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 17:56:13,043 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-23 17:56:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-23 17:56:13,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:56:13,050 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] [2020-10-23 17:56:13,051 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:56:13,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:56:13,057 INFO L82 PathProgramCache]: Analyzing trace with hash 216934484, now seen corresponding path program 1 times [2020-10-23 17:56:13,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:56:13,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546916323] [2020-10-23 17:56:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:56:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:13,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:56:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:13,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:56:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:13,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:56:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:13,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 17:56:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:13,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:56:13,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546916323] [2020-10-23 17:56:13,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:56:13,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 17:56:13,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796375226] [2020-10-23 17:56:13,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 17:56:13,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:56:13,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 17:56:13,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 17:56:13,493 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 4 states. [2020-10-23 17:56:13,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:56:13,699 INFO L93 Difference]: Finished difference Result 76 states and 98 transitions. [2020-10-23 17:56:13,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 17:56:13,701 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-10-23 17:56:13,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:56:13,710 INFO L225 Difference]: With dead ends: 76 [2020-10-23 17:56:13,711 INFO L226 Difference]: Without dead ends: 37 [2020-10-23 17:56:13,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 17:56:13,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-23 17:56:13,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-23 17:56:13,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-23 17:56:13,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-10-23 17:56:13,773 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 27 [2020-10-23 17:56:13,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:56:13,774 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-10-23 17:56:13,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 17:56:13,775 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2020-10-23 17:56:13,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-23 17:56:13,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:56:13,777 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] [2020-10-23 17:56:13,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 17:56:13,778 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:56:13,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:56:13,779 INFO L82 PathProgramCache]: Analyzing trace with hash 556998312, now seen corresponding path program 1 times [2020-10-23 17:56:13,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:56:13,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928284851] [2020-10-23 17:56:13,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:56:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:13,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:56:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:13,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:56:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:14,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:56:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:14,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-23 17:56:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:56:14,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928284851] [2020-10-23 17:56:14,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:56:14,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 17:56:14,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617315430] [2020-10-23 17:56:14,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 17:56:14,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:56:14,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 17:56:14,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 17:56:14,044 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 6 states. [2020-10-23 17:56:14,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:56:14,285 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2020-10-23 17:56:14,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 17:56:14,285 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-23 17:56:14,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:56:14,289 INFO L225 Difference]: With dead ends: 53 [2020-10-23 17:56:14,289 INFO L226 Difference]: Without dead ends: 41 [2020-10-23 17:56:14,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 17:56:14,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-23 17:56:14,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-23 17:56:14,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-23 17:56:14,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-10-23 17:56:14,304 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 28 [2020-10-23 17:56:14,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:56:14,305 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-10-23 17:56:14,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 17:56:14,305 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-10-23 17:56:14,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-23 17:56:14,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:56:14,307 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, 1, 1, 1, 1] [2020-10-23 17:56:14,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 17:56:14,308 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:56:14,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:56:14,308 INFO L82 PathProgramCache]: Analyzing trace with hash 139707149, now seen corresponding path program 1 times [2020-10-23 17:56:14,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:56:14,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198810330] [2020-10-23 17:56:14,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:56:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:14,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:56:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:14,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:56:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:14,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 17:56:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:14,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 17:56:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:56:14,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:56:14,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198810330] [2020-10-23 17:56:14,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:56:14,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 17:56:14,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284037979] [2020-10-23 17:56:14,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 17:56:14,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:56:14,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 17:56:14,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 17:56:14,464 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 6 states. [2020-10-23 17:56:14,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:56:14,640 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2020-10-23 17:56:14,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 17:56:14,641 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-23 17:56:14,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:56:14,642 INFO L225 Difference]: With dead ends: 57 [2020-10-23 17:56:14,643 INFO L226 Difference]: Without dead ends: 45 [2020-10-23 17:56:14,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 17:56:14,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-23 17:56:14,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2020-10-23 17:56:14,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-23 17:56:14,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-10-23 17:56:14,655 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 31 [2020-10-23 17:56:14,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:56:14,655 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-10-23 17:56:14,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 17:56:14,656 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-10-23 17:56:14,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-23 17:56:14,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:56:14,657 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] [2020-10-23 17:56:14,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 17:56:14,658 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:56:14,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:56:14,658 INFO L82 PathProgramCache]: Analyzing trace with hash -370827028, now seen corresponding path program 1 times [2020-10-23 17:56:14,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:56:14,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133884827] [2020-10-23 17:56:14,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:56:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:56:14,688 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:56:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:56:14,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:56:14,777 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 17:56:14,778 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 17:56:14,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 17:56:14,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 05:56:14 BoogieIcfgContainer [2020-10-23 17:56:14,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 17:56:14,852 INFO L168 Benchmark]: Toolchain (without parser) took 2973.27 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 83.8 MB in the end (delta: 42.0 MB). Peak memory consumption was 42.8 MB. Max. memory is 8.0 GB. [2020-10-23 17:56:14,854 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 123.8 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 17:56:14,855 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.37 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 115.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 17:56:14,858 INFO L168 Benchmark]: Boogie Preprocessor took 44.85 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 113.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 17:56:14,861 INFO L168 Benchmark]: RCFGBuilder took 597.00 ms. Allocated memory is still 151.0 MB. Free memory was 113.5 MB in the beginning and 129.2 MB in the end (delta: -15.7 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2020-10-23 17:56:14,861 INFO L168 Benchmark]: TraceAbstraction took 1894.77 ms. Allocated memory is still 151.0 MB. Free memory was 129.2 MB in the beginning and 83.8 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 8.0 GB. [2020-10-23 17:56:14,871 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 151.0 MB. Free memory was 123.9 MB in the beginning and 123.8 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 423.37 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 115.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.85 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 113.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 597.00 ms. Allocated memory is still 151.0 MB. Free memory was 113.5 MB in the beginning and 129.2 MB in the end (delta: -15.7 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1894.77 ms. Allocated memory is still 151.0 MB. Free memory was 129.2 MB in the beginning and 83.8 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 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 46, overapproximation of someBinaryArithmeticFLOAToperation at line 56. Possible FailurePath: [L56] float x = 0.0f / 0.0f; [L57] float y = 0.0f / 0.0f; [L58] CALL, EXPR fmin_float(x, y) VAL [\old(x)=2139095043, \old(y)=2139095047] [L37] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2139095043] [L14] __uint32_t w; VAL [\old(x)=2139095043, x=2139095043] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L22] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=2139095043, w=2139095041, x=2139095043] [L24-L25] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=2139095043, w=2139095041, x=2139095043] [L27-L28] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=2139095043, w=2139095041, x=2139095043] [L30] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L33] return 0; VAL [\old(x)=2139095043, \result=0, w=2139095041, x=2139095043] [L37] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2139095043, \old(y)=2139095047, __fpclassify_float(x)=0, x=2139095043, y=2139095047] [L37] COND TRUE __fpclassify_float(x) == 0 [L38] return y; VAL [\old(x)=2139095043, \old(y)=2139095047, \result=2139095047, x=2139095043, y=2139095047] [L58] RET, EXPR fmin_float(x, y) VAL [fmin_float(x, y)=2139095047, x=2139095043, y=2139095047] [L58] float res = fmin_float(x, y); [L60] CALL, EXPR isnan_float(res) VAL [\old(x)=2139095047] [L46] return x != x; VAL [\old(x)=2139095047, \result=0, x=2139095047] [L60] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=2139095047, x=2139095043, y=2139095047] [L60] COND TRUE !isnan_float(res) [L61] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_1230.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 126 SDtfs, 36 SDslu, 210 SDs, 0 SdLazy, 163 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 0.5s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 7243 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...