/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0330b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-02-01 00:19:40,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-01 00:19:40,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-01 00:19:40,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-01 00:19:40,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-01 00:19:40,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-01 00:19:40,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-01 00:19:40,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-01 00:19:40,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-01 00:19:40,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-01 00:19:40,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-01 00:19:40,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-01 00:19:40,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-01 00:19:40,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-01 00:19:40,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-01 00:19:40,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-01 00:19:40,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-01 00:19:40,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-01 00:19:40,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-01 00:19:40,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-01 00:19:40,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-01 00:19:40,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-01 00:19:40,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-01 00:19:40,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-01 00:19:40,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-01 00:19:41,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-01 00:19:41,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-01 00:19:41,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-01 00:19:41,007 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-01 00:19:41,017 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-01 00:19:41,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-01 00:19:41,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-01 00:19:41,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-01 00:19:41,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-01 00:19:41,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-01 00:19:41,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-01 00:19:41,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-01 00:19:41,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-01 00:19:41,018 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-01 00:19:41,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-01 00:19:41,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-01 00:19:41,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-01 00:19:41,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-01 00:19:41,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-01 00:19:41,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:19:41,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-01 00:19:41,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-01 00:19:41,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-01 00:19:41,020 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-01 00:19:41,020 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-01 00:19:41,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-01 00:19:41,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-01 00:19:41,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-01 00:19:41,225 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-01 00:19:41,225 INFO L275 PluginConnector]: CDTParser initialized [2022-02-01 00:19:41,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0330b.c [2022-02-01 00:19:41,268 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c9bd656/93642816719e43ca8334b755990531dd/FLAG3983abe2c [2022-02-01 00:19:41,662 INFO L306 CDTParser]: Found 1 translation units. [2022-02-01 00:19:41,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0330b.c [2022-02-01 00:19:41,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c9bd656/93642816719e43ca8334b755990531dd/FLAG3983abe2c [2022-02-01 00:19:41,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c9bd656/93642816719e43ca8334b755990531dd [2022-02-01 00:19:41,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-01 00:19:41,681 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-01 00:19:41,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-01 00:19:41,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-01 00:19:41,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-01 00:19:41,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:19:41" (1/1) ... [2022-02-01 00:19:41,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@587daf13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:41, skipping insertion in model container [2022-02-01 00:19:41,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:19:41" (1/1) ... [2022-02-01 00:19:41,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-01 00:19:41,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-01 00:19:41,916 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_0330b.c[15498,15511] [2022-02-01 00:19:41,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:19:41,942 INFO L203 MainTranslator]: Completed pre-run [2022-02-01 00:19:42,048 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_0330b.c[15498,15511] [2022-02-01 00:19:42,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:19:42,082 INFO L208 MainTranslator]: Completed translation [2022-02-01 00:19:42,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:42 WrapperNode [2022-02-01 00:19:42,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-01 00:19:42,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-01 00:19:42,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-01 00:19:42,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-01 00:19:42,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:42" (1/1) ... [2022-02-01 00:19:42,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:42" (1/1) ... [2022-02-01 00:19:42,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:42" (1/1) ... [2022-02-01 00:19:42,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:42" (1/1) ... [2022-02-01 00:19:42,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:42" (1/1) ... [2022-02-01 00:19:42,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:42" (1/1) ... [2022-02-01 00:19:42,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:42" (1/1) ... [2022-02-01 00:19:42,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-01 00:19:42,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-01 00:19:42,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-01 00:19:42,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-01 00:19:42,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:42" (1/1) ... [2022-02-01 00:19:42,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:19:42,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-01 00:19:42,283 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) [2022-02-01 00:19:42,302 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 [2022-02-01 00:19:42,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-01 00:19:42,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-01 00:19:42,316 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-01 00:19:42,316 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2022-02-01 00:19:42,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2022-02-01 00:19:42,316 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2022-02-01 00:19:42,316 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2022-02-01 00:19:42,317 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-02-01 00:19:42,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2022-02-01 00:19:42,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2022-02-01 00:19:42,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2022-02-01 00:19:42,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2022-02-01 00:19:42,317 INFO L138 BoogieDeclarations]: Found implementation of procedure cos_float [2022-02-01 00:19:42,318 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-01 00:19:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-01 00:19:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-01 00:19:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-01 00:19:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-01 00:19:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-02-01 00:19:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2022-02-01 00:19:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-01 00:19:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-01 00:19:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-01 00:19:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-01 00:19:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-01 00:19:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-01 00:19:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2022-02-01 00:19:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2022-02-01 00:19:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2022-02-01 00:19:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-02-01 00:19:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2022-02-01 00:19:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2022-02-01 00:19:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2022-02-01 00:19:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2022-02-01 00:19:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure cos_float [2022-02-01 00:19:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-01 00:19:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-01 00:19:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-01 00:19:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-02-01 00:19:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-01 00:19:42,494 INFO L234 CfgBuilder]: Building ICFG [2022-02-01 00:19:42,495 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-01 00:19:43,356 INFO L275 CfgBuilder]: Performing block encoding [2022-02-01 00:19:43,378 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-01 00:19:43,378 INFO L299 CfgBuilder]: Removed 59 assume(true) statements. [2022-02-01 00:19:43,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:19:43 BoogieIcfgContainer [2022-02-01 00:19:43,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-01 00:19:43,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-01 00:19:43,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-01 00:19:43,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-01 00:19:43,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.02 12:19:41" (1/3) ... [2022-02-01 00:19:43,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c692e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:19:43, skipping insertion in model container [2022-02-01 00:19:43,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:42" (2/3) ... [2022-02-01 00:19:43,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c692e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:19:43, skipping insertion in model container [2022-02-01 00:19:43,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:19:43" (3/3) ... [2022-02-01 00:19:43,403 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0330b.c [2022-02-01 00:19:43,407 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-01 00:19:43,407 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-01 00:19:43,462 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-01 00:19:43,475 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=QVASR [2022-02-01 00:19:43,475 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-01 00:19:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 273 states, 239 states have (on average 1.6276150627615062) internal successors, (389), 240 states have internal predecessors, (389), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-01 00:19:43,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-02-01 00:19:43,515 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:19:43,515 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] [2022-02-01 00:19:43,516 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:19:43,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:19:43,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1076423549, now seen corresponding path program 1 times [2022-02-01 00:19:43,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:19:43,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700577169] [2022-02-01 00:19:43,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:19:43,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:19:43,580 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:19:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:19:43,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:19:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:19:43,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-01 00:19:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:19:43,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-01 00:19:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:19:43,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:19:43,985 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:19:43,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700577169] [2022-02-01 00:19:43,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [700577169] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:19:43,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:19:43,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:19:43,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145901162] [2022-02-01 00:19:43,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:19:43,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:19:43,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:19:44,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:19:44,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:19:44,016 INFO L87 Difference]: Start difference. First operand has 273 states, 239 states have (on average 1.6276150627615062) internal successors, (389), 240 states have internal predecessors, (389), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) 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) [2022-02-01 00:19:45,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:19:45,083 INFO L93 Difference]: Finished difference Result 538 states and 866 transitions. [2022-02-01 00:19:45,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:19:45,085 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 [2022-02-01 00:19:45,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:19:45,092 INFO L225 Difference]: With dead ends: 538 [2022-02-01 00:19:45,092 INFO L226 Difference]: Without dead ends: 269 [2022-02-01 00:19:45,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:19:45,099 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 327 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-01 00:19:45,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 340 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-01 00:19:45,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-02-01 00:19:45,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2022-02-01 00:19:45,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 237 states have (on average 1.3755274261603376) internal successors, (326), 237 states have internal predecessors, (326), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-01 00:19:45,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 365 transitions. [2022-02-01 00:19:45,176 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 365 transitions. Word has length 22 [2022-02-01 00:19:45,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:19:45,176 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 365 transitions. [2022-02-01 00:19:45,176 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) [2022-02-01 00:19:45,176 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 365 transitions. [2022-02-01 00:19:45,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-01 00:19:45,177 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:19:45,177 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] [2022-02-01 00:19:45,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-01 00:19:45,178 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:19:45,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:19:45,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1144123730, now seen corresponding path program 1 times [2022-02-01 00:19:45,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:19:45,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578216516] [2022-02-01 00:19:45,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:19:45,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:19:45,181 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:19:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:19:45,223 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-01 00:19:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:19:45,296 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-01 00:19:45,296 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-01 00:19:45,298 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-01 00:19:45,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-01 00:19:45,301 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-01 00:19:45,303 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-01 00:19:45,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.02 12:19:45 BoogieIcfgContainer [2022-02-01 00:19:45,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-01 00:19:45,315 INFO L158 Benchmark]: Toolchain (without parser) took 3633.61ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 144.7MB in the beginning and 190.9MB in the end (delta: -46.2MB). Peak memory consumption was 101.0MB. Max. memory is 8.0GB. [2022-02-01 00:19:45,315 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 162.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:19:45,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.69ms. Allocated memory is still 195.0MB. Free memory was 144.5MB in the beginning and 155.7MB in the end (delta: -11.2MB). Peak memory consumption was 6.1MB. Max. memory is 8.0GB. [2022-02-01 00:19:45,316 INFO L158 Benchmark]: Boogie Preprocessor took 155.12ms. Allocated memory is still 195.0MB. Free memory was 155.7MB in the beginning and 148.8MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-02-01 00:19:45,316 INFO L158 Benchmark]: RCFGBuilder took 1156.45ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 148.8MB in the beginning and 179.0MB in the end (delta: -30.2MB). Peak memory consumption was 38.5MB. Max. memory is 8.0GB. [2022-02-01 00:19:45,316 INFO L158 Benchmark]: TraceAbstraction took 1915.80ms. Allocated memory is still 234.9MB. Free memory was 178.4MB in the beginning and 190.9MB in the end (delta: -12.5MB). Peak memory consumption was 95.0MB. Max. memory is 8.0GB. [2022-02-01 00:19:45,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 162.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 400.69ms. Allocated memory is still 195.0MB. Free memory was 144.5MB in the beginning and 155.7MB in the end (delta: -11.2MB). Peak memory consumption was 6.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 155.12ms. Allocated memory is still 195.0MB. Free memory was 155.7MB in the beginning and 148.8MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1156.45ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 148.8MB in the beginning and 179.0MB in the end (delta: -30.2MB). Peak memory consumption was 38.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1915.80ms. Allocated memory is still 234.9MB. Free memory was 178.4MB in the beginning and 190.9MB in the end (delta: -12.5MB). Peak memory consumption was 95.0MB. 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: 613]: 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 64, overapproximation of someUnaryDOUBLEoperation at line 500, overapproximation of bitwiseAnd at line 579, overapproximation of someBinaryArithmeticFLOAToperation at line 584. Possible FailurePath: [L18] static const float huge_floor = 1.0e30; [L86-L88] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L158] static const int init_jk_krempio[] = {4, 7, 9}; [L160-L164] 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, }; [L166-L168] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L343-L361] 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, }; [L363-L369] 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}; [L371-L380] 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; [L500-L503] static const float half_ksin = 5.0000000000e-01, S1_ksin = -1.6666667163e-01, S2_ksin = 8.3333337680e-03, S3_ksin = -1.9841270114e-04, S4_ksin = 2.7557314297e-06, S5_ksin = -2.5050759689e-08, S6_ksin = 1.5896910177e-10; [L527-L530] static const float one_kcos = 1.0000000000e+00, C1_kcos = 4.1666667908e-02, C2_kcos = -1.3888889225e-03, C3_kcos = 2.4801587642e-05, C4_kcos = -2.7557314297e-07, C5_kcos = 2.0875723372e-09, C6_kcos = -1.1359647598e-11; [L567] static const float one_cos = 1.0; [L608] float x = -1.0f / 0.0f; [L609] CALL, EXPR cos_float(x) [L570] float y[2], z = 0.0; [L571] __int32_t n, ix; [L574] ieee_float_shape_type gf_u; [L575] gf_u.value = (x) [L576] EXPR gf_u.word [L576] (ix) = gf_u.word [L579] ix &= 0x7fffffff [L580] COND FALSE !(ix <= 0x3f490fd8) [L583] COND TRUE !((ix) < 0x7f800000L) [L584] return x - x; [L584] return x - x; [L609] RET, EXPR cos_float(x) [L609] float res = cos_float(x); [L612] CALL, EXPR isnan_float(res) [L64] return x != x; [L612] RET, EXPR isnan_float(res) [L612] COND TRUE !isnan_float(res) [L613] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 276 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 344 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 327 mSDsluCounter, 340 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 372 IncrementalHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 338 mSDtfsCounter, 372 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, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273occurred 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 [2022-02-01 00:19:45,357 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...