/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0550b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:01:09,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:01:09,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:01:09,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 23:01:09,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 23:01:09,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 23:01:09,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 23:01:09,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 23:01:09,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 23:01:09,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 23:01:09,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 23:01:09,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 23:01:09,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:01:09,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:01:09,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:01:09,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:01:09,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:01:09,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:01:09,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:01:09,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:01:09,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:01:09,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:01:09,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:01:09,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:01:09,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:01:09,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:01:09,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:01:09,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:01:09,565 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 23:01:09,571 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:01:09,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:01:09,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:01:09,572 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 23:01:09,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:01:09,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 23:01:09,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:01:09,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:01:09,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:01:09,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:01:09,573 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 23:01:09,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:01:09,574 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:01:09,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:01:09,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:01:09,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:01:09,574 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:01:09,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:01:09,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:01:09,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:01:09,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:01:09,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:01:09,574 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 23:01:09,575 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:01:09,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:01:09,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:01:09,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:01:09,773 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:01:09,773 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:01:09,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0550b.c [2022-01-31 23:01:09,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9c17279e/d99c81ec9c27404e81145bb7d8ed4882/FLAG419c0cf44 [2022-01-31 23:01:10,253 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:01:10,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0550b.c [2022-01-31 23:01:10,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9c17279e/d99c81ec9c27404e81145bb7d8ed4882/FLAG419c0cf44 [2022-01-31 23:01:10,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9c17279e/d99c81ec9c27404e81145bb7d8ed4882 [2022-01-31 23:01:10,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:01:10,647 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:01:10,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:01:10,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:01:10,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:01:10,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:01:10" (1/1) ... [2022-01-31 23:01:10,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b0f539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:10, skipping insertion in model container [2022-01-31 23:01:10,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:01:10" (1/1) ... [2022-01-31 23:01:10,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:01:10,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:01:10,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0550b.c[15673,15686] [2022-01-31 23:01:10,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:01:11,004 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:01:11,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0550b.c[15673,15686] [2022-01-31 23:01:11,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:01:11,126 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:01:11,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:11 WrapperNode [2022-01-31 23:01:11,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:01:11,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:01:11,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:01:11,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:01:11,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:11" (1/1) ... [2022-01-31 23:01:11,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:11" (1/1) ... [2022-01-31 23:01:11,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:11" (1/1) ... [2022-01-31 23:01:11,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:11" (1/1) ... [2022-01-31 23:01:11,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:11" (1/1) ... [2022-01-31 23:01:11,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:11" (1/1) ... [2022-01-31 23:01:11,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:11" (1/1) ... [2022-01-31 23:01:11,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:01:11,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:01:11,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:01:11,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:01:11,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:11" (1/1) ... [2022-01-31 23:01:11,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:01:11,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:01:11,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 23:01:11,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 23:01:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:01:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:01:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:01:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2022-01-31 23:01:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2022-01-31 23:01:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2022-01-31 23:01:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2022-01-31 23:01:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2022-01-31 23:01:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-01-31 23:01:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2022-01-31 23:01:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2022-01-31 23:01:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2022-01-31 23:01:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure tan_float [2022-01-31 23:01:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:01:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:01:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:01:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:01:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:01:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 23:01:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2022-01-31 23:01:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 23:01:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 23:01:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:01:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:01:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:01:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 23:01:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2022-01-31 23:01:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2022-01-31 23:01:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2022-01-31 23:01:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2022-01-31 23:01:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-01-31 23:01:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2022-01-31 23:01:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2022-01-31 23:01:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2022-01-31 23:01:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure tan_float [2022-01-31 23:01:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:01:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:01:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:01:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 23:01:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:01:11,422 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:01:11,429 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:01:12,056 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:01:12,064 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:01:12,064 INFO L299 CfgBuilder]: Removed 65 assume(true) statements. [2022-01-31 23:01:12,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:01:12 BoogieIcfgContainer [2022-01-31 23:01:12,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:01:12,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:01:12,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:01:12,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:01:12,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:01:10" (1/3) ... [2022-01-31 23:01:12,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be5c87a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:01:12, skipping insertion in model container [2022-01-31 23:01:12,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:01:11" (2/3) ... [2022-01-31 23:01:12,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be5c87a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:01:12, skipping insertion in model container [2022-01-31 23:01:12,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:01:12" (3/3) ... [2022-01-31 23:01:12,073 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0550b.c [2022-01-31 23:01:12,076 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:01:12,077 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:01:12,109 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:01:12,113 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-01-31 23:01:12,113 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:01:12,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 267 states, 236 states have (on average 1.6398305084745763) internal successors, (387), 237 states have internal predecessors, (387), 18 states have call successors, (18), 11 states have call predecessors, (18), 11 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-01-31 23:01:12,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-31 23:01:12,132 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:01:12,132 INFO L514 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] [2022-01-31 23:01:12,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:01:12,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:01:12,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2089748102, now seen corresponding path program 1 times [2022-01-31 23:01:12,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:01:12,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395996213] [2022-01-31 23:01:12,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:01:12,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:01:12,194 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:01:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:01:12,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:01:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:01:12,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 23:01:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:01:12,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 23:01:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:01:12,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:01:12,578 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:01:12,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395996213] [2022-01-31 23:01:12,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [395996213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:01:12,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:01:12,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:01:12,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966360472] [2022-01-31 23:01:12,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:01:12,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:01:12,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:01:12,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:01:12,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:01:12,609 INFO L87 Difference]: Start difference. First operand has 267 states, 236 states have (on average 1.6398305084745763) internal successors, (387), 237 states have internal predecessors, (387), 18 states have call successors, (18), 11 states have call predecessors, (18), 11 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 23:01:13,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:01:13,526 INFO L93 Difference]: Finished difference Result 526 states and 852 transitions. [2022-01-31 23:01:13,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:01:13,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-01-31 23:01:13,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:01:13,536 INFO L225 Difference]: With dead ends: 526 [2022-01-31 23:01:13,536 INFO L226 Difference]: Without dead ends: 263 [2022-01-31 23:01:13,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:01:13,542 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 321 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 23:01:13,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 334 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 23:01:13,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-01-31 23:01:13,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2022-01-31 23:01:13,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 234 states have (on average 1.3675213675213675) internal successors, (320), 234 states have internal predecessors, (320), 18 states have call successors, (18), 11 states have call predecessors, (18), 10 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-01-31 23:01:13,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 355 transitions. [2022-01-31 23:01:13,659 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 355 transitions. Word has length 22 [2022-01-31 23:01:13,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:01:13,660 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 355 transitions. [2022-01-31 23:01:13,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 23:01:13,660 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 355 transitions. [2022-01-31 23:01:13,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-31 23:01:13,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:01:13,661 INFO L514 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] [2022-01-31 23:01:13,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:01:13,662 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:01:13,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:01:13,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1874613441, now seen corresponding path program 1 times [2022-01-31 23:01:13,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:01:13,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029771973] [2022-01-31 23:01:13,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:01:13,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:01:13,664 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:01:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:01:13,720 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 23:01:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:01:13,792 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 23:01:13,792 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 23:01:13,794 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:01:13,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:01:13,797 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 23:01:13,798 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:01:13,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 11:01:13 BoogieIcfgContainer [2022-01-31 23:01:13,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 23:01:13,815 INFO L158 Benchmark]: Toolchain (without parser) took 3168.73ms. Allocated memory was 294.6MB in the beginning and 367.0MB in the end (delta: 72.4MB). Free memory was 239.1MB in the beginning and 296.9MB in the end (delta: -57.8MB). Peak memory consumption was 15.5MB. Max. memory is 8.0GB. [2022-01-31 23:01:13,816 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 294.6MB. Free memory is still 256.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:01:13,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.91ms. Allocated memory was 294.6MB in the beginning and 367.0MB in the end (delta: 72.4MB). Free memory was 238.9MB in the beginning and 321.8MB in the end (delta: -82.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-31 23:01:13,816 INFO L158 Benchmark]: Boogie Preprocessor took 98.89ms. Allocated memory is still 367.0MB. Free memory was 321.8MB in the beginning and 314.6MB in the end (delta: 7.2MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-01-31 23:01:13,817 INFO L158 Benchmark]: RCFGBuilder took 839.89ms. Allocated memory is still 367.0MB. Free memory was 314.6MB in the beginning and 251.1MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2022-01-31 23:01:13,817 INFO L158 Benchmark]: TraceAbstraction took 1746.90ms. Allocated memory is still 367.0MB. Free memory was 251.1MB in the beginning and 296.9MB in the end (delta: -45.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:01:13,818 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 294.6MB. Free memory is still 256.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 478.91ms. Allocated memory was 294.6MB in the beginning and 367.0MB in the end (delta: 72.4MB). Free memory was 238.9MB in the beginning and 321.8MB in the end (delta: -82.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 98.89ms. Allocated memory is still 367.0MB. Free memory was 321.8MB in the beginning and 314.6MB in the end (delta: 7.2MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 839.89ms. Allocated memory is still 367.0MB. Free memory was 314.6MB in the beginning and 251.1MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * TraceAbstraction took 1746.90ms. Allocated memory is still 367.0MB. Free memory was 251.1MB in the beginning and 296.9MB in the end (delta: -45.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 631]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 72, overapproximation of someUnaryDOUBLEoperation at line 512, overapproximation of bitwiseAnd at line 606, overapproximation of someBinaryArithmeticFLOAToperation at line 611. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L94-L96] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L164] static const int init_jk_krempio[] = {4, 7, 9}; [L166-L170] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L172-L174] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L349-L367] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L369-L375] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L377-L386] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L506-L514] static const float one_ktan = 1.0000000000e+00, pio4_ktan = 7.8539812565e-01, pio4lo_ktan = 3.7748947079e-08, T_ktan[] = { 3.3333334327e-01, 1.3333334029e-01, 5.3968254477e-02, 2.1869488060e-02, 8.8632395491e-03, 3.5920790397e-03, 1.4562094584e-03, 5.8804126456e-04, 2.4646313977e-04, 7.8179444245e-05, 7.1407252108e-05, -1.8558637748e-05, 2.5907305826e-05, }; [L626] float x = -1.0f / 0.0f; [L627] CALL, EXPR tan_float(x) [L597] float y[2], z = 0.0; [L598] __int32_t n, ix; [L601] ieee_float_shape_type gf_u; [L602] gf_u.value = (x) [L603] EXPR gf_u.word [L603] (ix) = gf_u.word [L606] ix &= 0x7fffffff [L607] COND FALSE !(ix <= 0x3f490fda) [L610] COND TRUE !((ix) < 0x7f800000L) [L611] return x - x; [L611] return x - x; [L627] RET, EXPR tan_float(x) [L627] float res = tan_float(x); [L630] CALL, EXPR isnan_float(res) [L72] return x != x; [L630] RET, EXPR isnan_float(res) [L630] COND TRUE !isnan_float(res) [L631] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 276 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 336 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 321 mSDsluCounter, 334 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 361 IncrementalHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 332 mSDtfsCounter, 361 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=267occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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 [2022-01-31 23:01:13,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...