/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/float-newlib/float_req_bl_0833.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 04:47:02,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 04:47:02,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 04:47:02,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 04:47:02,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 04:47:02,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 04:47:02,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 04:47:02,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 04:47:02,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 04:47:02,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 04:47:02,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 04:47:02,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 04:47:02,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 04:47:02,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 04:47:02,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 04:47:02,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 04:47:02,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 04:47:02,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 04:47:02,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 04:47:02,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 04:47:02,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 04:47:02,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 04:47:02,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 04:47:02,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 04:47:02,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 04:47:02,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 04:47:02,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 04:47:02,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 04:47:02,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 04:47:02,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 04:47:02,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 04:47:02,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 04:47:02,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 04:47:02,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 04:47:02,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 04:47:02,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 04:47:02,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 04:47:02,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 04:47:02,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 04:47:02,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 04:47:02,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 04:47:02,740 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 04:47:02,767 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 04:47:02,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 04:47:02,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 04:47:02,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 04:47:02,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 04:47:02,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 04:47:02,768 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 04:47:02,768 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 04:47:02,768 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 04:47:02,768 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 04:47:02,769 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 04:47:02,769 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 04:47:02,769 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 04:47:02,769 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 04:47:02,769 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 04:47:02,769 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 04:47:02,769 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 04:47:02,770 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 04:47:02,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 04:47:02,770 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 04:47:02,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 04:47:02,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 04:47:02,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 04:47:02,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 04:47:02,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 04:47:02,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 04:47:02,771 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 04:47:02,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 04:47:02,771 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 04:47:02,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 04:47:02,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 04:47:02,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 04:47:02,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:47:02,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 04:47:02,772 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 04:47:02,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 04:47:02,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 04:47:02,772 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 04:47:02,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 04:47:02,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 04:47:02,772 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 04:47:02,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 04:47:02,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 04:47:03,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 04:47:03,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 04:47:03,008 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 04:47:03,009 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 04:47:03,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0833.c [2023-04-01 04:47:04,313 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 04:47:04,490 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 04:47:04,491 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0833.c [2023-04-01 04:47:04,503 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ced8851/0a400f7d58d3456587da0289a7e37d0c/FLAG2df6a968b [2023-04-01 04:47:04,515 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ced8851/0a400f7d58d3456587da0289a7e37d0c [2023-04-01 04:47:04,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 04:47:04,521 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 04:47:04,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 04:47:04,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 04:47:04,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 04:47:04,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:47:04" (1/1) ... [2023-04-01 04:47:04,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e59525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:04, skipping insertion in model container [2023-04-01 04:47:04,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:47:04" (1/1) ... [2023-04-01 04:47:04,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 04:47:04,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 04:47:04,717 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0833.c[3348,3361] [2023-04-01 04:47:04,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:47:04,730 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 04:47:04,784 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0833.c[3348,3361] [2023-04-01 04:47:04,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:47:04,816 INFO L208 MainTranslator]: Completed translation [2023-04-01 04:47:04,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:04 WrapperNode [2023-04-01 04:47:04,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 04:47:04,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 04:47:04,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 04:47:04,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 04:47:04,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:04" (1/1) ... [2023-04-01 04:47:04,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:04" (1/1) ... [2023-04-01 04:47:04,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:04" (1/1) ... [2023-04-01 04:47:04,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:04" (1/1) ... [2023-04-01 04:47:04,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:04" (1/1) ... [2023-04-01 04:47:04,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:04" (1/1) ... [2023-04-01 04:47:04,884 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:04" (1/1) ... [2023-04-01 04:47:04,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:04" (1/1) ... [2023-04-01 04:47:04,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 04:47:04,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 04:47:04,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 04:47:04,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 04:47:04,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:04" (1/1) ... [2023-04-01 04:47:04,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:47:04,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:47:04,914 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) [2023-04-01 04:47:04,919 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 [2023-04-01 04:47:04,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 04:47:04,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 04:47:04,944 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 04:47:04,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2023-04-01 04:47:04,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2023-04-01 04:47:04,945 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 04:47:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 04:47:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 04:47:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 04:47:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 04:47:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-04-01 04:47:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2023-04-01 04:47:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 04:47:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-01 04:47:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 04:47:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 04:47:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-01 04:47:04,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 04:47:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2023-04-01 04:47:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 04:47:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 04:47:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 04:47:04,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-04-01 04:47:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 04:47:05,085 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 04:47:05,087 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 04:47:05,329 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 04:47:05,367 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 04:47:05,367 INFO L302 CfgBuilder]: Removed 12 assume(true) statements. [2023-04-01 04:47:05,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:47:05 BoogieIcfgContainer [2023-04-01 04:47:05,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 04:47:05,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 04:47:05,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 04:47:05,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 04:47:05,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 04:47:04" (1/3) ... [2023-04-01 04:47:05,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebe122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:47:05, skipping insertion in model container [2023-04-01 04:47:05,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:47:04" (2/3) ... [2023-04-01 04:47:05,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ebe122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:47:05, skipping insertion in model container [2023-04-01 04:47:05,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:47:05" (3/3) ... [2023-04-01 04:47:05,375 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833.c [2023-04-01 04:47:05,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 04:47:05,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 04:47:05,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 04:47:05,470 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1957973a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 04:47:05,470 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 04:47:05,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 38 states have (on average 1.631578947368421) internal successors, (62), 39 states have internal predecessors, (62), 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) [2023-04-01 04:47:05,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-04-01 04:47:05,493 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:47:05,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:47:05,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:47:05,498 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:47:05,498 INFO L85 PathProgramCache]: Analyzing trace with hash -456940948, now seen corresponding path program 1 times [2023-04-01 04:47:05,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:47:05,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609270377] [2023-04-01 04:47:05,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:47:05,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:47:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:47:05,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:47:05,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:47:05,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609270377] [2023-04-01 04:47:05,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609270377] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:47:05,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:47:05,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 04:47:05,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315007316] [2023-04-01 04:47:05,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:47:05,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 04:47:05,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:47:05,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 04:47:05,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 04:47:05,858 INFO L87 Difference]: Start difference. First operand has 48 states, 38 states have (on average 1.631578947368421) internal successors, (62), 39 states have internal predecessors, (62), 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 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 04:47:05,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:47:05,931 INFO L93 Difference]: Finished difference Result 89 states and 134 transitions. [2023-04-01 04:47:05,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 04:47:05,934 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-04-01 04:47:05,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:47:05,939 INFO L225 Difference]: With dead ends: 89 [2023-04-01 04:47:05,939 INFO L226 Difference]: Without dead ends: 44 [2023-04-01 04:47:05,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 04:47:05,944 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 04:47:05,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 04:47:05,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-04-01 04:47:05,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-04-01 04:47:05,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 36 states have internal predecessors, (46), 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) [2023-04-01 04:47:05,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2023-04-01 04:47:05,980 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 16 [2023-04-01 04:47:05,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:47:05,980 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2023-04-01 04:47:05,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 04:47:05,982 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2023-04-01 04:47:05,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-04-01 04:47:05,983 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:47:05,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 04:47:05,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 04:47:05,984 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:47:05,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:47:05,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1859496587, now seen corresponding path program 1 times [2023-04-01 04:47:05,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:47:05,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665130612] [2023-04-01 04:47:05,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:47:05,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:47:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:47:06,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 04:47:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 04:47:06,157 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 04:47:06,157 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 04:47:06,159 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 04:47:06,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 04:47:06,162 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 04:47:06,165 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 04:47:06,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 04:47:06 BoogieIcfgContainer [2023-04-01 04:47:06,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 04:47:06,204 INFO L158 Benchmark]: Toolchain (without parser) took 1683.00ms. Allocated memory is still 223.3MB. Free memory was 174.2MB in the beginning and 175.5MB in the end (delta: -1.3MB). Peak memory consumption was 243.3kB. Max. memory is 8.0GB. [2023-04-01 04:47:06,204 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory was 134.1MB in the beginning and 134.0MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 04:47:06,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.42ms. Allocated memory is still 223.3MB. Free memory was 173.9MB in the beginning and 161.8MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-01 04:47:06,207 INFO L158 Benchmark]: Boogie Preprocessor took 56.37ms. Allocated memory is still 223.3MB. Free memory was 161.8MB in the beginning and 159.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 04:47:06,208 INFO L158 Benchmark]: RCFGBuilder took 482.00ms. Allocated memory is still 223.3MB. Free memory was 159.5MB in the beginning and 139.8MB in the end (delta: 19.7MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-04-01 04:47:06,209 INFO L158 Benchmark]: TraceAbstraction took 832.11ms. Allocated memory is still 223.3MB. Free memory was 139.1MB in the beginning and 175.5MB in the end (delta: -36.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 04:47:06,212 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 185.6MB. Free memory was 134.1MB in the beginning and 134.0MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 296.42ms. Allocated memory is still 223.3MB. Free memory was 173.9MB in the beginning and 161.8MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.37ms. Allocated memory is still 223.3MB. Free memory was 161.8MB in the beginning and 159.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 482.00ms. Allocated memory is still 223.3MB. Free memory was 159.5MB in the beginning and 139.8MB in the end (delta: 19.7MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 832.11ms. Allocated memory is still 223.3MB. Free memory was 139.1MB in the beginning and 175.5MB in the end (delta: -36.5MB). 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: 133]: 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 132, overapproximation of someUnaryDOUBLEoperation at line 18, overapproximation of someBinaryArithmeticFLOAToperation at line 49. Possible FailurePath: [L14-L33] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L128] float x = -1.0f / 0.0f; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L129] CALL, EXPR __ieee754_expf(x) VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(x)=1000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L36] float y, hi, lo, c, t; [L37] __int32_t k = 0, xsb, sx; [L38] __uint32_t hx; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(x)=1000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000004] [L41] ieee_float_shape_type gf_u; [L42] gf_u.value = (x) [L43] EXPR gf_u.word [L43] (sx) = gf_u.word [L45] xsb = (sx >> 31) & 1 [L46] hx = sx & 0x7fffffff VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(x)=1000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx=2147483647, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=2147483647, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000004, xsb=0] [L48] COND TRUE ((hx) > 0x7f800000L) [L49] return x + x; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(x)=1000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx=2147483647, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=2147483647, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000004, xsb=0] [L129] RET, EXPR __ieee754_expf(x) VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, __ieee754_expf(x)=1000000000000000000000000000010, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000004] [L129] float res = __ieee754_expf(x); [L132] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, res == 0.0f && __signbit_float(res) == 0=0, res=1000000000000000000000000000010, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000004] [L132] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L133] reach_error() VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, res=1000000000000000000000000000010, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000004] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 54 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 [2023-04-01 04:47:06,239 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...