/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0921.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:52:41,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:52:41,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:52:41,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:52:41,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:52:41,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:52:41,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:52:41,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:52:41,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:52:41,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:52:41,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:52:41,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:52:41,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:52:41,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:52:41,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:52:41,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:52:41,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:52:41,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:52:41,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:52:41,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:52:41,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:52:41,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:52:41,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:52:41,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:52:41,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 16:52:41,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:52:41,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:52:41,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:52:41,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:52:41,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:52:41,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:52:41,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:52:41,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:52:41,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:52:41,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:52:41,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:52:41,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:52:41,874 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:52:41,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:52:41,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:52:41,876 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:52:41,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:52:41,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:52:41,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:52:41,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:52:41,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:52:41,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:52:41,877 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:52:41,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:52:41,877 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:52:41,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:52:41,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:52:41,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:52:41,878 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:52:41,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:52:41,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:52:41,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:52:41,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:52:41,879 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:52:41,879 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:52:42,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:52:42,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:52:42,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:52:42,097 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:52:42,099 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:52:42,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0921.c [2022-01-31 16:52:42,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/193e163c8/9f46a21edf794dbdbadc29da0d749165/FLAG12a88e43f [2022-01-31 16:52:42,524 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:52:42,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0921.c [2022-01-31 16:52:42,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/193e163c8/9f46a21edf794dbdbadc29da0d749165/FLAG12a88e43f [2022-01-31 16:52:42,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/193e163c8/9f46a21edf794dbdbadc29da0d749165 [2022-01-31 16:52:42,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:52:42,544 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:52:42,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:52:42,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:52:42,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:52:42,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:52:42" (1/1) ... [2022-01-31 16:52:42,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748f4f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:52:42, skipping insertion in model container [2022-01-31 16:52:42,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:52:42" (1/1) ... [2022-01-31 16:52:42,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:52:42,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:52:42,726 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_0921.c[3212,3225] [2022-01-31 16:52:42,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:52:42,735 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:52:42,761 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_0921.c[3212,3225] [2022-01-31 16:52:42,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:52:42,773 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:52:42,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:52:42 WrapperNode [2022-01-31 16:52:42,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:52:42,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:52:42,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:52:42,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:52:42,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:52:42" (1/1) ... [2022-01-31 16:52:42,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:52:42" (1/1) ... [2022-01-31 16:52:42,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:52:42" (1/1) ... [2022-01-31 16:52:42,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:52:42" (1/1) ... [2022-01-31 16:52:42,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:52:42" (1/1) ... [2022-01-31 16:52:42,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:52:42" (1/1) ... [2022-01-31 16:52:42,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:52:42" (1/1) ... [2022-01-31 16:52:42,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:52:42,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:52:42,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:52:42,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:52:42,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:52:42" (1/1) ... [2022-01-31 16:52:42,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:52:42,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:52:42,839 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 16:52:42,841 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 16:52:42,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:52:42,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:52:42,868 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:52:42,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2022-01-31 16:52:42,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2022-01-31 16:52:42,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2022-01-31 16:52:42,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:52:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:52:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:52:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:52:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:52:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 16:52:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2022-01-31 16:52:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 16:52:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 16:52:42,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:52:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:52:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2022-01-31 16:52:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:52:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 16:52:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2022-01-31 16:52:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:52:42,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:52:42,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:52:42,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:52:42,943 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:52:42,944 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:52:43,169 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:52:43,176 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:52:43,177 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-01-31 16:52:43,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:52:43 BoogieIcfgContainer [2022-01-31 16:52:43,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:52:43,179 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:52:43,179 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:52:43,183 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:52:43,186 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:52:43" (1/1) ... [2022-01-31 16:52:43,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:52:43 BasicIcfg [2022-01-31 16:52:43,208 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:52:43,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:52:43,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:52:43,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:52:43,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:52:42" (1/4) ... [2022-01-31 16:52:43,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3240f62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:52:43, skipping insertion in model container [2022-01-31 16:52:43,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:52:42" (2/4) ... [2022-01-31 16:52:43,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3240f62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:52:43, skipping insertion in model container [2022-01-31 16:52:43,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:52:43" (3/4) ... [2022-01-31 16:52:43,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3240f62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:52:43, skipping insertion in model container [2022-01-31 16:52:43,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:52:43" (4/4) ... [2022-01-31 16:52:43,214 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921.cJordan [2022-01-31 16:52:43,218 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:52:43,219 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:52:43,253 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:52:43,259 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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=FAST_UPR [2022-01-31 16:52:43,259 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:52:43,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 33 states have (on average 1.5757575757575757) internal successors, (52), 34 states have internal predecessors, (52), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 16:52:43,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-31 16:52:43,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:52:43,287 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] [2022-01-31 16:52:43,287 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:52:43,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:52:43,292 INFO L85 PathProgramCache]: Analyzing trace with hash -871575591, now seen corresponding path program 1 times [2022-01-31 16:52:43,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:52:43,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338264865] [2022-01-31 16:52:43,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:52:43,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:52:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:52:43,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:52:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:52:43,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 16:52:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:52:43,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-01-31 16:52:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:52:43,598 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 16:52:43,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:52:43,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338264865] [2022-01-31 16:52:43,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338264865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:52:43,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:52:43,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:52:43,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511421245] [2022-01-31 16:52:43,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:52:43,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:52:43,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:52:43,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:52:43,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:52:43,639 INFO L87 Difference]: Start difference. First operand has 43 states, 33 states have (on average 1.5757575757575757) internal successors, (52), 34 states have internal predecessors, (52), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 2 states have internal predecessors, (14), 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 16:52:43,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:52:43,821 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2022-01-31 16:52:43,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:52:43,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 2 states have internal predecessors, (14), 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 21 [2022-01-31 16:52:43,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:52:43,838 INFO L225 Difference]: With dead ends: 43 [2022-01-31 16:52:43,838 INFO L226 Difference]: Without dead ends: 39 [2022-01-31 16:52:43,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:52:43,843 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 46 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:52:43,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 50 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 16:52:43,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-01-31 16:52:43,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-01-31 16:52:43,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 16:52:43,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2022-01-31 16:52:43,881 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 21 [2022-01-31 16:52:43,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:52:43,882 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2022-01-31 16:52:43,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 2 states have internal predecessors, (14), 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 16:52:43,882 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2022-01-31 16:52:43,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-31 16:52:43,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:52:43,883 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 16:52:43,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:52:43,884 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:52:43,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:52:43,886 INFO L85 PathProgramCache]: Analyzing trace with hash -336244283, now seen corresponding path program 1 times [2022-01-31 16:52:43,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:52:43,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772576180] [2022-01-31 16:52:43,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:52:43,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:52:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:52:43,951 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 16:52:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:52:44,018 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-31 16:52:44,019 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 16:52:44,020 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 16:52:44,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:52:44,024 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 16:52:44,026 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 16:52:44,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:52:44 BasicIcfg [2022-01-31 16:52:44,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 16:52:44,057 INFO L158 Benchmark]: Toolchain (without parser) took 1512.26ms. Allocated memory was 188.7MB in the beginning and 259.0MB in the end (delta: 70.3MB). Free memory was 134.9MB in the beginning and 168.4MB in the end (delta: -33.6MB). Peak memory consumption was 36.6MB. Max. memory is 8.0GB. [2022-01-31 16:52:44,057 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:52:44,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.36ms. Allocated memory was 188.7MB in the beginning and 259.0MB in the end (delta: 70.3MB). Free memory was 134.7MB in the beginning and 229.3MB in the end (delta: -94.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-31 16:52:44,058 INFO L158 Benchmark]: Boogie Preprocessor took 40.47ms. Allocated memory is still 259.0MB. Free memory was 229.3MB in the beginning and 227.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 16:52:44,059 INFO L158 Benchmark]: RCFGBuilder took 362.74ms. Allocated memory is still 259.0MB. Free memory was 227.2MB in the beginning and 212.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-01-31 16:52:44,059 INFO L158 Benchmark]: IcfgTransformer took 28.86ms. Allocated memory is still 259.0MB. Free memory was 212.5MB in the beginning and 210.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 16:52:44,060 INFO L158 Benchmark]: TraceAbstraction took 846.92ms. Allocated memory is still 259.0MB. Free memory was 210.4MB in the beginning and 168.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2022-01-31 16:52:44,062 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 228.36ms. Allocated memory was 188.7MB in the beginning and 259.0MB in the end (delta: 70.3MB). Free memory was 134.7MB in the beginning and 229.3MB in the end (delta: -94.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.47ms. Allocated memory is still 259.0MB. Free memory was 229.3MB in the beginning and 227.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 362.74ms. Allocated memory is still 259.0MB. Free memory was 227.2MB in the beginning and 212.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * IcfgTransformer took 28.86ms. Allocated memory is still 259.0MB. Free memory was 212.5MB in the beginning and 210.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 846.92ms. Allocated memory is still 259.0MB. Free memory was 210.4MB in the beginning and 168.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. 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: 126]: 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 113, overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of bitwiseAnd at line 45. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; VAL [\old(Lg1_log)=4294967297, \old(Lg2_log)=4294967300, \old(Lg3_log)=4294967298, \old(Lg4_log)=4294967305, \old(Lg5_log)=4294967302, \old(Lg6_log)=4294967309, \old(Lg7_log)=4294967296, \old(ln2_hi_log)=4294967299, \old(ln2_lo_log)=4294967303, \old(two25_log)=4294967301, \old(zero_log)=4294967310, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L121] float x = 0.0f / 0.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L122] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=4294967306, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [\old(x)=4294967306, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=4294967306, zero_log=0] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (ix) = gf_u.word [L44] k = 0 VAL [\old(x)=4294967306, ix=-1, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=4294967306, zero_log=0] [L45] COND TRUE ((ix & 0x7fffffff) == 0) [L46] return -two25_log / zero_log; VAL [\old(x)=4294967306, ix=-1, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=4294967306, zero_log=0] [L122] RET, EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=4294967307, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=4294967306, zero_log=0] [L122] float res = __ieee754_logf(x); [L125] CALL, EXPR isnan_float(res) VAL [\old(x)=4294967307, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L113] return x != x; VAL [\old(x)=4294967307, \result=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=4294967307, zero_log=0] [L125] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=4294967307, two25_log=33554432, x=4294967306, zero_log=0] [L125] COND TRUE !isnan_float(res) [L126] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=4294967307, two25_log=33554432, x=4294967306, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 48 mSDtfsCounter, 51 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-01-31 16:52:44,098 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...