/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 EqDomain -i ../sv-benchmarks/c/float-newlib/double_req_bl_0921.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 10:49:25,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 10:49:25,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 10:49:25,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 10:49:25,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 10:49:25,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 10:49:25,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 10:49:25,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 10:49:25,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 10:49:25,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 10:49:25,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 10:49:25,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 10:49:25,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 10:49:25,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 10:49:25,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 10:49:25,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 10:49:25,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 10:49:25,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 10:49:25,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 10:49:25,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 10:49:25,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 10:49:25,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 10:49:25,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 10:49:25,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 10:49:25,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 10:49:25,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 10:49:25,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 10:49:25,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 10:49:25,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 10:49:25,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 10:49:25,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 10:49:25,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 10:49:25,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 10:49:25,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 10:49:25,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 10:49:25,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 10:49:25,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 10:49:25,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 10:49:25,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 10:49:25,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 10:49:25,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 10:49:25,402 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 10:49:25,422 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 10:49:25,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 10:49:25,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 10:49:25,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 10:49:25,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 10:49:25,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 10:49:25,424 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 10:49:25,424 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 10:49:25,424 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 10:49:25,424 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 10:49:25,424 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 10:49:25,424 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 10:49:25,424 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 10:49:25,424 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 10:49:25,425 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 10:49:25,425 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 10:49:25,425 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 10:49:25,425 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 10:49:25,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 10:49:25,426 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 10:49:25,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 10:49:25,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 10:49:25,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 10:49:25,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 10:49:25,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 10:49:25,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 10:49:25,427 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 10:49:25,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 10:49:25,427 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 10:49:25,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 10:49:25,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 10:49:25,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 10:49:25,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:49:25,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 10:49:25,428 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 10:49:25,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 10:49:25,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 10:49:25,428 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 10:49:25,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 10:49:25,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 10:49:25,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 10:49:25,429 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 10:49:25,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 10:49:25,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 10:49:25,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 10:49:25,632 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 10:49:25,632 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 10:49:25,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2023-04-01 10:49:26,759 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 10:49:26,976 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 10:49:26,977 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2023-04-01 10:49:26,983 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c0ccbd6c/974ba7204cad49999bd53148c516456b/FLAG2bd9956db [2023-04-01 10:49:26,996 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c0ccbd6c/974ba7204cad49999bd53148c516456b [2023-04-01 10:49:26,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 10:49:27,000 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 10:49:27,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 10:49:27,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 10:49:27,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 10:49:27,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:49:26" (1/1) ... [2023-04-01 10:49:27,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621c5db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:27, skipping insertion in model container [2023-04-01 10:49:27,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:49:26" (1/1) ... [2023-04-01 10:49:27,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 10:49:27,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 10:49:27,202 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/double_req_bl_0921.c[3679,3692] [2023-04-01 10:49:27,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:49:27,215 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 10:49:27,251 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/double_req_bl_0921.c[3679,3692] [2023-04-01 10:49:27,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:49:27,264 INFO L208 MainTranslator]: Completed translation [2023-04-01 10:49:27,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:27 WrapperNode [2023-04-01 10:49:27,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 10:49:27,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 10:49:27,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 10:49:27,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 10:49:27,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:27" (1/1) ... [2023-04-01 10:49:27,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:27" (1/1) ... [2023-04-01 10:49:27,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:27" (1/1) ... [2023-04-01 10:49:27,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:27" (1/1) ... [2023-04-01 10:49:27,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:27" (1/1) ... [2023-04-01 10:49:27,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:27" (1/1) ... [2023-04-01 10:49:27,307 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:27" (1/1) ... [2023-04-01 10:49:27,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:27" (1/1) ... [2023-04-01 10:49:27,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 10:49:27,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 10:49:27,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 10:49:27,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 10:49:27,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:27" (1/1) ... [2023-04-01 10:49:27,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:49:27,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 10:49:27,357 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 10:49:27,381 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 10:49:27,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 10:49:27,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 10:49:27,401 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 10:49:27,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2023-04-01 10:49:27,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2023-04-01 10:49:27,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2023-04-01 10:49:27,402 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 10:49:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 10:49:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 10:49:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 10:49:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 10:49:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2023-04-01 10:49:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2023-04-01 10:49:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 10:49:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-01 10:49:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 10:49:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 10:49:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2023-04-01 10:49:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 10:49:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-01 10:49:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2023-04-01 10:49:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 10:49:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 10:49:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 10:49:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 10:49:27,486 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 10:49:27,488 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 10:49:27,879 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 10:49:28,123 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 10:49:28,123 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-04-01 10:49:28,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:49:28 BoogieIcfgContainer [2023-04-01 10:49:28,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 10:49:28,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 10:49:28,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 10:49:28,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 10:49:28,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 10:49:26" (1/3) ... [2023-04-01 10:49:28,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f3b788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:49:28, skipping insertion in model container [2023-04-01 10:49:28,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:49:27" (2/3) ... [2023-04-01 10:49:28,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f3b788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:49:28, skipping insertion in model container [2023-04-01 10:49:28,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:49:28" (3/3) ... [2023-04-01 10:49:28,139 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921.c [2023-04-01 10:49:28,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 10:49:28,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 10:49:28,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 10:49:28,210 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;@1263e682, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 10:49:28,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 10:49:28,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 24 states have internal predecessors, (35), 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 10:49:28,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-04-01 10:49:28,219 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:49:28,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 10:49:28,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:49:28,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:49:28,224 INFO L85 PathProgramCache]: Analyzing trace with hash 908775375, now seen corresponding path program 1 times [2023-04-01 10:49:28,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:49:28,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774639236] [2023-04-01 10:49:28,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:49:28,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:49:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:49:28,415 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 10:49:28,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 10:49:28,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774639236] [2023-04-01 10:49:28,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774639236] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 10:49:28,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 10:49:28,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 10:49:28,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601234373] [2023-04-01 10:49:28,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 10:49:28,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 10:49:28,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 10:49:28,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 10:49:28,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 10:49:28,463 INFO L87 Difference]: Start difference. First operand has 33 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 24 states have internal predecessors, (35), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-01 10:49:28,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 10:49:28,513 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2023-04-01 10:49:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 10:49:28,515 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 1 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 20 [2023-04-01 10:49:28,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 10:49:28,522 INFO L225 Difference]: With dead ends: 59 [2023-04-01 10:49:28,522 INFO L226 Difference]: Without dead ends: 29 [2023-04-01 10:49:28,525 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 10:49:28,530 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 10:49:28,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 10:49:28,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-04-01 10:49:28,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-04-01 10:49:28,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 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 10:49:28,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-04-01 10:49:28,569 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 20 [2023-04-01 10:49:28,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 10:49:28,569 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-04-01 10:49:28,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-01 10:49:28,569 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-04-01 10:49:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-04-01 10:49:28,570 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:49:28,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 10:49:28,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 10:49:28,571 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:49:28,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:49:28,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1540878376, now seen corresponding path program 1 times [2023-04-01 10:49:28,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:49:28,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371692018] [2023-04-01 10:49:28,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:49:28,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:49:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 10:49:28,632 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 10:49:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 10:49:28,720 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 10:49:28,720 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 10:49:28,722 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 10:49:28,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 10:49:28,725 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 10:49:28,727 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 10:49:28,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 10:49:28 BoogieIcfgContainer [2023-04-01 10:49:28,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 10:49:28,750 INFO L158 Benchmark]: Toolchain (without parser) took 1750.07ms. Allocated memory is still 348.1MB. Free memory was 292.6MB in the beginning and 250.6MB in the end (delta: 42.0MB). Peak memory consumption was 42.8MB. Max. memory is 8.0GB. [2023-04-01 10:49:28,750 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 10:49:28,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.00ms. Allocated memory is still 348.1MB. Free memory was 292.6MB in the beginning and 280.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-04-01 10:49:28,751 INFO L158 Benchmark]: Boogie Preprocessor took 62.74ms. Allocated memory is still 348.1MB. Free memory was 280.1MB in the beginning and 278.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 10:49:28,752 INFO L158 Benchmark]: RCFGBuilder took 797.49ms. Allocated memory is still 348.1MB. Free memory was 278.0MB in the beginning and 283.1MB in the end (delta: -5.2MB). Peak memory consumption was 28.2MB. Max. memory is 8.0GB. [2023-04-01 10:49:28,752 INFO L158 Benchmark]: TraceAbstraction took 619.97ms. Allocated memory is still 348.1MB. Free memory was 282.6MB in the beginning and 250.6MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2023-04-01 10:49:28,755 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 194.0MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 264.00ms. Allocated memory is still 348.1MB. Free memory was 292.6MB in the beginning and 280.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.74ms. Allocated memory is still 348.1MB. Free memory was 280.1MB in the beginning and 278.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 797.49ms. Allocated memory is still 348.1MB. Free memory was 278.0MB in the beginning and 283.1MB in the end (delta: -5.2MB). Peak memory consumption was 28.2MB. Max. memory is 8.0GB. * TraceAbstraction took 619.97ms. Allocated memory is still 348.1MB. Free memory was 282.6MB in the beginning and 250.6MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. 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: 142]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 129, overapproximation of someBinaryArithmeticDOUBLEoperation at line 74. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L137] double x = 0.0 / 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L138] CALL, EXPR __ieee754_log(x) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, \old(x)=18014398509481989, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, \old(x)=18014398509481989, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=18014398509481989, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, \old(x)=18014398509481989, hx=2146435072, k=0, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=15, two54_log=18014398509481984, x=18014398509481989, zero=0] [L60] COND FALSE !(hx < 0x00100000) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, \old(x)=18014398509481989, hx=2146435072, k=0, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=15, two54_log=18014398509481984, x=18014398509481989, zero=0] [L73] COND TRUE hx >= 0x7ff00000 [L74] return x + x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, \old(x)=18014398509481989, hx=2146435072, k=0, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=15, two54_log=18014398509481984, x=18014398509481989, zero=0] [L138] RET, EXPR __ieee754_log(x) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, __ieee754_log(x)=18014398509481997, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=18014398509481989, zero=0] [L138] double res = __ieee754_log(x); [L141] CALL, EXPR isnan_double(res) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, \old(x)=18014398509481997, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L129] return x != x; [L141] RET, EXPR isnan_double(res) VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, isnan_double(res)=0, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=18014398509481997, two54_log=18014398509481984, x=18014398509481989, zero=0] [L141] COND TRUE !isnan_double(res) [L142] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=18014398509481997, two54_log=18014398509481984, x=18014398509481989, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 6 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=33occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 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 10:49:28,777 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...