/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/float_req_bl_0834.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 10:50:21,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 10:50:21,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 10:50:21,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 10:50:21,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 10:50:21,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 10:50:21,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 10:50:21,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 10:50:21,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 10:50:21,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 10:50:21,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 10:50:21,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 10:50:21,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 10:50:21,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 10:50:21,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 10:50:21,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 10:50:21,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 10:50:21,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 10:50:21,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 10:50:21,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 10:50:21,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 10:50:21,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 10:50:21,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 10:50:21,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 10:50:21,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 10:50:21,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 10:50:21,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 10:50:21,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 10:50:21,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 10:50:21,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 10:50:21,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 10:50:21,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 10:50:21,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 10:50:21,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 10:50:21,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 10:50:21,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 10:50:21,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 10:50:21,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 10:50:21,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 10:50:21,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 10:50:21,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 10:50:21,218 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 10:50:21,237 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 10:50:21,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 10:50:21,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 10:50:21,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 10:50:21,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 10:50:21,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 10:50:21,239 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 10:50:21,239 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 10:50:21,239 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 10:50:21,239 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 10:50:21,239 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 10:50:21,239 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 10:50:21,240 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 10:50:21,240 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 10:50:21,240 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 10:50:21,240 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 10:50:21,240 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 10:50:21,240 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 10:50:21,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 10:50:21,241 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 10:50:21,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 10:50:21,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 10:50:21,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 10:50:21,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 10:50:21,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 10:50:21,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 10:50:21,242 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 10:50:21,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 10:50:21,242 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 10:50:21,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 10:50:21,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 10:50:21,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 10:50:21,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:50:21,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 10:50:21,243 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 10:50:21,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 10:50:21,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 10:50:21,244 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 10:50:21,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 10:50:21,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 10:50:21,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 10:50:21,244 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 10:50:21,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 10:50:21,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 10:50:21,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 10:50:21,503 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 10:50:21,504 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 10:50:21,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0834.c [2023-04-01 10:50:22,632 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 10:50:22,790 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 10:50:22,790 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0834.c [2023-04-01 10:50:22,809 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51cad6693/b2f0e93d10084d91b48a466e7ae690f6/FLAG7a9321d84 [2023-04-01 10:50:22,833 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51cad6693/b2f0e93d10084d91b48a466e7ae690f6 [2023-04-01 10:50:22,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 10:50:22,835 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 10:50:22,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 10:50:22,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 10:50:22,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 10:50:22,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:50:22" (1/1) ... [2023-04-01 10:50:22,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c746ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:22, skipping insertion in model container [2023-04-01 10:50:22,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:50:22" (1/1) ... [2023-04-01 10:50:22,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 10:50:22,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 10:50:23,033 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_0834.c[3447,3460] [2023-04-01 10:50:23,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:50:23,044 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 10:50:23,071 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_0834.c[3447,3460] [2023-04-01 10:50:23,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:50:23,082 INFO L208 MainTranslator]: Completed translation [2023-04-01 10:50:23,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:23 WrapperNode [2023-04-01 10:50:23,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 10:50:23,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 10:50:23,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 10:50:23,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 10:50:23,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:23" (1/1) ... [2023-04-01 10:50:23,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:23" (1/1) ... [2023-04-01 10:50:23,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:23" (1/1) ... [2023-04-01 10:50:23,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:23" (1/1) ... [2023-04-01 10:50:23,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:23" (1/1) ... [2023-04-01 10:50:23,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:23" (1/1) ... [2023-04-01 10:50:23,120 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:23" (1/1) ... [2023-04-01 10:50:23,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:23" (1/1) ... [2023-04-01 10:50:23,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 10:50:23,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 10:50:23,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 10:50:23,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 10:50:23,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:23" (1/1) ... [2023-04-01 10:50:23,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:50:23,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 10:50:23,149 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 10:50:23,152 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 10:50:23,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 10:50:23,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 10:50:23,183 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 10:50:23,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-04-01 10:50:23,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2023-04-01 10:50:23,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2023-04-01 10:50:23,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 10:50:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 10:50:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 10:50:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 10:50:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 10:50:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2023-04-01 10:50:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-04-01 10:50:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2023-04-01 10:50:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 10:50:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-01 10:50:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 10:50:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 10:50:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-01 10:50:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 10:50:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2023-04-01 10:50:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 10:50:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 10:50:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 10:50:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-04-01 10:50:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 10:50:23,269 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 10:50:23,271 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 10:50:23,504 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 10:50:23,600 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 10:50:23,600 INFO L302 CfgBuilder]: Removed 12 assume(true) statements. [2023-04-01 10:50:23,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:50:23 BoogieIcfgContainer [2023-04-01 10:50:23,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 10:50:23,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 10:50:23,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 10:50:23,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 10:50:23,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 10:50:22" (1/3) ... [2023-04-01 10:50:23,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e9db56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:50:23, skipping insertion in model container [2023-04-01 10:50:23,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:50:23" (2/3) ... [2023-04-01 10:50:23,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e9db56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:50:23, skipping insertion in model container [2023-04-01 10:50:23,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:50:23" (3/3) ... [2023-04-01 10:50:23,612 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0834.c [2023-04-01 10:50:23,627 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 10:50:23,627 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 10:50:23,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 10:50:23,681 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;@1f779e88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 10:50:23,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 10:50:23,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 38 states have internal predecessors, (60), 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 10:50:23,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-04-01 10:50:23,694 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:50:23,695 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 10:50:23,695 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:50:23,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:50:23,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1702317196, now seen corresponding path program 1 times [2023-04-01 10:50:23,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:50:23,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847754179] [2023-04-01 10:50:23,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:50:23,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:50:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:50:23,973 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 10:50:23,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 10:50:23,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847754179] [2023-04-01 10:50:23,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847754179] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 10:50:23,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 10:50:23,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 10:50:23,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813528263] [2023-04-01 10:50:23,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 10:50:23,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 10:50:23,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 10:50:24,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 10:50:24,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 10:50:24,030 INFO L87 Difference]: Start difference. First operand has 47 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 38 states have internal predecessors, (60), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 10:50:24,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 10:50:24,098 INFO L93 Difference]: Finished difference Result 87 states and 130 transitions. [2023-04-01 10:50:24,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 10:50:24,100 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 21 [2023-04-01 10:50:24,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 10:50:24,106 INFO L225 Difference]: With dead ends: 87 [2023-04-01 10:50:24,107 INFO L226 Difference]: Without dead ends: 43 [2023-04-01 10:50:24,109 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 10:50:24,112 INFO L413 NwaCegarLoop]: 52 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, 52 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 10:50:24,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 10:50:24,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-04-01 10:50:24,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-04-01 10:50:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 35 states have internal predecessors, (44), 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 10:50:24,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2023-04-01 10:50:24,161 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 21 [2023-04-01 10:50:24,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 10:50:24,161 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2023-04-01 10:50:24,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 10:50:24,162 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2023-04-01 10:50:24,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-04-01 10:50:24,163 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:50:24,163 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, 1, 1] [2023-04-01 10:50:24,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 10:50:24,163 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:50:24,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:50:24,164 INFO L85 PathProgramCache]: Analyzing trace with hash 705863104, now seen corresponding path program 1 times [2023-04-01 10:50:24,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:50:24,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867603716] [2023-04-01 10:50:24,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:50:24,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:50:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 10:50:24,246 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 10:50:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 10:50:24,348 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 10:50:24,349 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 10:50:24,350 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 10:50:24,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 10:50:24,354 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 10:50:24,357 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 10:50:24,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 10:50:24 BoogieIcfgContainer [2023-04-01 10:50:24,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 10:50:24,394 INFO L158 Benchmark]: Toolchain (without parser) took 1558.11ms. Allocated memory was 184.5MB in the beginning and 225.4MB in the end (delta: 40.9MB). Free memory was 143.2MB in the beginning and 180.5MB in the end (delta: -37.4MB). Peak memory consumption was 4.3MB. Max. memory is 8.0GB. [2023-04-01 10:50:24,394 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 184.5MB. Free memory is still 139.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 10:50:24,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.96ms. Allocated memory is still 184.5MB. Free memory was 142.9MB in the beginning and 131.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-04-01 10:50:24,395 INFO L158 Benchmark]: Boogie Preprocessor took 40.19ms. Allocated memory is still 184.5MB. Free memory was 131.0MB in the beginning and 128.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 10:50:24,396 INFO L158 Benchmark]: RCFGBuilder took 478.17ms. Allocated memory is still 184.5MB. Free memory was 128.5MB in the beginning and 108.5MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-04-01 10:50:24,396 INFO L158 Benchmark]: TraceAbstraction took 787.21ms. Allocated memory was 184.5MB in the beginning and 225.4MB in the end (delta: 40.9MB). Free memory was 107.9MB in the beginning and 180.5MB in the end (delta: -72.6MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 10:50:24,398 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 184.5MB. Free memory is still 139.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 246.96ms. Allocated memory is still 184.5MB. Free memory was 142.9MB in the beginning and 131.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.19ms. Allocated memory is still 184.5MB. Free memory was 131.0MB in the beginning and 128.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 478.17ms. Allocated memory is still 184.5MB. Free memory was 128.5MB in the beginning and 108.5MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 787.21ms. Allocated memory was 184.5MB in the beginning and 225.4MB in the end (delta: 40.9MB). Free memory was 107.9MB in the beginning and 180.5MB in the end (delta: -72.6MB). 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: 137]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] 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; [L132] 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] [L133] 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] [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __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] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] 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=-1, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000004, xsb=1] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] 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=-1, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000004, xsb=1] [L133] 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] [L133] float res = __ieee754_expf(x); [L136] CALL, EXPR isinf_float(res) VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(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] [L115] __int32_t ix; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(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=1000000000000000000000000000010] [L117] ieee_float_shape_type gf_u; [L118] gf_u.value = (x) [L119] EXPR gf_u.word [L119] (ix) = gf_u.word [L121] ix &= 0x7fffffff [L122] return ((ix) == 0x7f800000L); [L136] RET, EXPR isinf_float(res) VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, isinf_float(res)=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, res=1000000000000000000000000000010, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000004] [L136] COND TRUE !isinf_float(res) [L137] 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 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 52 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, 52 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=47occurred 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, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 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 10:50:24,430 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...