./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb6b1424a272796845acc1f70223dfacd3f866998a144ff42a8a4da1c8cca40c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:44:45,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:44:45,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:44:45,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:44:45,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:44:45,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:44:45,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:44:45,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:44:45,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:44:45,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:44:45,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:44:45,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:44:45,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:44:45,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:44:45,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:44:45,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:44:45,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:44:45,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:44:45,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:44:45,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:44:45,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:44:45,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:44:45,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:44:45,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:44:45,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:44:45,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:44:45,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:44:45,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:44:45,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:44:45,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:44:45,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:44:45,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:44:45,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:44:45,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:44:45,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:44:45,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:44:45,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:44:45,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:44:45,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:44:45,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:44:45,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:44:45,132 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:44:45,153 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:44:45,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:44:45,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:44:45,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:44:45,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:44:45,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:44:45,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:44:45,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:44:45,159 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:44:45,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:44:45,160 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:44:45,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:44:45,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:44:45,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:44:45,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:44:45,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:44:45,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:44:45,161 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:44:45,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:44:45,162 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:44:45,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:44:45,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:44:45,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:44:45,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:44:45,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:44:45,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:44:45,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:44:45,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:44:45,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:44:45,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:44:45,164 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:44:45,164 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:44:45,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:44:45,165 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb6b1424a272796845acc1f70223dfacd3f866998a144ff42a8a4da1c8cca40c [2022-02-20 16:44:45,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:44:45,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:44:45,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:44:45,354 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:44:45,354 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:44:45,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c [2022-02-20 16:44:45,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2ed7faca/0a1ea7ee60e04731a2cebe5b5767904a/FLAG37448ebb0 [2022-02-20 16:44:45,810 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:44:45,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c [2022-02-20 16:44:45,824 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2ed7faca/0a1ea7ee60e04731a2cebe5b5767904a/FLAG37448ebb0 [2022-02-20 16:44:45,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2ed7faca/0a1ea7ee60e04731a2cebe5b5767904a [2022-02-20 16:44:45,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:44:45,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:44:45,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:44:45,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:44:45,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:44:45,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:44:45" (1/1) ... [2022-02-20 16:44:45,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a44aa04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:45, skipping insertion in model container [2022-02-20 16:44:45,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:44:45" (1/1) ... [2022-02-20 16:44:45,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:44:45,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:44:46,013 WARN L230 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_0960b.c[4186,4199] [2022-02-20 16:44:46,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:44:46,023 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:44:46,065 WARN L230 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_0960b.c[4186,4199] [2022-02-20 16:44:46,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:44:46,083 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:44:46,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:46 WrapperNode [2022-02-20 16:44:46,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:44:46,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:44:46,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:44:46,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:44:46,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:46" (1/1) ... [2022-02-20 16:44:46,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:46" (1/1) ... [2022-02-20 16:44:46,156 INFO L137 Inliner]: procedures = 17, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 243 [2022-02-20 16:44:46,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:44:46,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:44:46,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:44:46,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:44:46,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:46" (1/1) ... [2022-02-20 16:44:46,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:46" (1/1) ... [2022-02-20 16:44:46,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:46" (1/1) ... [2022-02-20 16:44:46,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:46" (1/1) ... [2022-02-20 16:44:46,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:46" (1/1) ... [2022-02-20 16:44:46,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:46" (1/1) ... [2022-02-20 16:44:46,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:46" (1/1) ... [2022-02-20 16:44:46,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:44:46,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:44:46,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:44:46,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:44:46,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:46" (1/1) ... [2022-02-20 16:44:46,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:44:46,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:44:46,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:44:46,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:44:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:44:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:44:46,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:44:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-20 16:44:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 16:44:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-20 16:44:46,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:44:46,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:44:46,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 16:44:46,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:44:46,370 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:44:46,372 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:44:46,878 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:44:46,884 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:44:46,888 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-02-20 16:44:46,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:44:46 BoogieIcfgContainer [2022-02-20 16:44:46,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:44:46,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:44:46,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:44:46,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:44:46,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:44:45" (1/3) ... [2022-02-20 16:44:46,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b6a44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:44:46, skipping insertion in model container [2022-02-20 16:44:46,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:46" (2/3) ... [2022-02-20 16:44:46,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b6a44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:44:46, skipping insertion in model container [2022-02-20 16:44:46,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:44:46" (3/3) ... [2022-02-20 16:44:46,898 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960b.c [2022-02-20 16:44:46,904 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:44:46,904 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:44:46,942 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:44:46,948 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:44:46,948 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:44:46,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 54 states have (on average 1.7222222222222223) internal successors, (93), 55 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:44:46,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-20 16:44:46,967 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:44:46,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:44:46,969 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:44:46,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:44:46,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1397432229, now seen corresponding path program 1 times [2022-02-20 16:44:46,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:44:46,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145896737] [2022-02-20 16:44:46,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:44:46,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:44:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:44:47,143 INFO L290 TraceCheckUtils]: 0: Hoare triple {59#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(21, 2);call #Ultimate.allocInit(12, 3);~ln2_hi_log~0 := 0.69313812256;~ln2_lo_log~0 := 9.0580006145E-6;~two25_log~0 := 3.3554432E7;~Lg1_log~0 := 0.66666668653;~Lg2_log~0 := 0.40000000596;~Lg3_log~0 := 0.28571429849;~Lg4_log~0 := 0.22222198546;~Lg5_log~0 := 0.1818357259;~Lg6_log~0 := 0.15313838422;~Lg7_log~0 := 0.1479819864;~zero_log~0 := 0.0;~two25_log10~0 := 3.3554432E7;~ivln10_log10~0 := 0.43429449201;~log10_2hi_log10~0 := 0.30102920532;~log10_2lo_log10~0 := 7.9034151668E-7;~zero~0 := 0.0; {59#true} is VALID [2022-02-20 16:44:47,143 INFO L290 TraceCheckUtils]: 1: Hoare triple {59#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret14#1, main_#t~ret15#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~someUnaryFLOAToperation(0.0);assume { :begin_inline___ieee754_log10f } true;__ieee754_log10f_#in~x#1 := main_~x~0#1;havoc __ieee754_log10f_#res#1;havoc __ieee754_log10f_#t~mem8#1, __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, __ieee754_log10f_#t~mem9#1, __ieee754_log10f_~#gf_u~3#1.base, __ieee754_log10f_~#gf_u~3#1.offset, __ieee754_log10f_#t~mem11#1, __ieee754_log10f_~#sf_u~1#1.base, __ieee754_log10f_~#sf_u~1#1.offset, __ieee754_log10f_#t~ret12#1, __ieee754_log10f_~x#1, __ieee754_log10f_~y~0#1, __ieee754_log10f_~z~1#1, __ieee754_log10f_~i~1#1, __ieee754_log10f_~k~1#1, __ieee754_log10f_~hx~0#1, __ieee754_log10f_#t~nondet10#1;__ieee754_log10f_~x#1 := __ieee754_log10f_#in~x#1;havoc __ieee754_log10f_~y~0#1;havoc __ieee754_log10f_~z~1#1;havoc __ieee754_log10f_~i~1#1;havoc __ieee754_log10f_~k~1#1;havoc __ieee754_log10f_~hx~0#1; {59#true} is VALID [2022-02-20 16:44:47,144 INFO L290 TraceCheckUtils]: 2: Hoare triple {59#true} assume !true; {60#false} is VALID [2022-02-20 16:44:47,145 INFO L290 TraceCheckUtils]: 3: Hoare triple {60#false} __ieee754_log10f_~k~1#1 := 0; {60#false} is VALID [2022-02-20 16:44:47,145 INFO L290 TraceCheckUtils]: 4: Hoare triple {60#false} assume 0 == (if 0 == __ieee754_log10f_~hx~0#1 then 0 else (if 1 == __ieee754_log10f_~hx~0#1 then 1 else ~bitwiseAnd(__ieee754_log10f_~hx~0#1, 2147483647)));__ieee754_log10f_#res#1 := ~someBinaryArithmeticFLOAToperation(~someUnaryFLOAToperation(~two25_log10~0), ~zero~0); {60#false} is VALID [2022-02-20 16:44:47,145 INFO L290 TraceCheckUtils]: 5: Hoare triple {60#false} main_#t~ret14#1 := __ieee754_log10f_#res#1;assume { :end_inline___ieee754_log10f } true;main_~res~0#1 := main_#t~ret14#1;havoc main_#t~ret14#1;assume { :begin_inline_isinf_float } true;isinf_float_#in~x#1 := main_~res~0#1;havoc isinf_float_#res#1;havoc isinf_float_#t~mem13#1, isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset, isinf_float_~x#1, isinf_float_~ix~1#1;isinf_float_~x#1 := isinf_float_#in~x#1;havoc isinf_float_~ix~1#1; {60#false} is VALID [2022-02-20 16:44:47,145 INFO L290 TraceCheckUtils]: 6: Hoare triple {60#false} assume !true; {60#false} is VALID [2022-02-20 16:44:47,146 INFO L290 TraceCheckUtils]: 7: Hoare triple {60#false} isinf_float_~ix~1#1 := (if 0 == isinf_float_~ix~1#1 then 0 else (if 1 == isinf_float_~ix~1#1 then 1 else ~bitwiseAnd(isinf_float_~ix~1#1, 2147483647)));isinf_float_#res#1 := (if 2139095040 == isinf_float_~ix~1#1 then 1 else 0); {60#false} is VALID [2022-02-20 16:44:47,147 INFO L290 TraceCheckUtils]: 8: Hoare triple {60#false} main_#t~ret15#1 := isinf_float_#res#1;assume { :end_inline_isinf_float } true;assume -2147483648 <= main_#t~ret15#1 && main_#t~ret15#1 <= 2147483647; {60#false} is VALID [2022-02-20 16:44:47,147 INFO L290 TraceCheckUtils]: 9: Hoare triple {60#false} assume 0 == main_#t~ret15#1;havoc main_#t~ret15#1; {60#false} is VALID [2022-02-20 16:44:47,147 INFO L290 TraceCheckUtils]: 10: Hoare triple {60#false} assume !false; {60#false} is VALID [2022-02-20 16:44:47,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:44:47,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:44:47,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145896737] [2022-02-20 16:44:47,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145896737] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:44:47,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:44:47,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:44:47,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962391065] [2022-02-20 16:44:47,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:44:47,180 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-02-20 16:44:47,180 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:44:47,183 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:44:47,200 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:44:47,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:44:47,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:44:47,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:44:47,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:44:47,226 INFO L87 Difference]: Start difference. First operand has 56 states, 54 states have (on average 1.7222222222222223) internal successors, (93), 55 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:44:47,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:44:47,312 INFO L93 Difference]: Finished difference Result 110 states and 184 transitions. [2022-02-20 16:44:47,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:44:47,315 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-02-20 16:44:47,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:44:47,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:44:47,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 184 transitions. [2022-02-20 16:44:47,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:44:47,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 184 transitions. [2022-02-20 16:44:47,329 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 184 transitions. [2022-02-20 16:44:47,485 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 184 edges. 184 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:44:47,497 INFO L225 Difference]: With dead ends: 110 [2022-02-20 16:44:47,497 INFO L226 Difference]: Without dead ends: 53 [2022-02-20 16:44:47,500 INFO L932 BasicCegarLoop]: 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 [2022-02-20 16:44:47,503 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:44:47,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:44:47,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-02-20 16:44:47,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-02-20 16:44:47,529 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:44:47,529 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand has 53 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:44:47,530 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand has 53 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:44:47,531 INFO L87 Difference]: Start difference. First operand 53 states. Second operand has 53 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:44:47,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:44:47,535 INFO L93 Difference]: Finished difference Result 53 states and 73 transitions. [2022-02-20 16:44:47,535 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions. [2022-02-20 16:44:47,536 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:44:47,536 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:44:47,537 INFO L74 IsIncluded]: Start isIncluded. First operand has 53 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 53 states. [2022-02-20 16:44:47,537 INFO L87 Difference]: Start difference. First operand has 53 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 53 states. [2022-02-20 16:44:47,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:44:47,540 INFO L93 Difference]: Finished difference Result 53 states and 73 transitions. [2022-02-20 16:44:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions. [2022-02-20 16:44:47,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:44:47,541 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:44:47,541 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:44:47,541 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:44:47,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:44:47,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 73 transitions. [2022-02-20 16:44:47,545 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 73 transitions. Word has length 11 [2022-02-20 16:44:47,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:44:47,545 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 73 transitions. [2022-02-20 16:44:47,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:44:47,546 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions. [2022-02-20 16:44:47,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-20 16:44:47,547 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:44:47,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:44:47,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:44:47,547 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:44:47,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:44:47,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1461869416, now seen corresponding path program 1 times [2022-02-20 16:44:47,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:44:47,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913356607] [2022-02-20 16:44:47,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:44:47,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:44:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:44:47,608 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:44:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:44:47,677 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:44:47,677 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:44:47,679 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:44:47,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 16:44:47,683 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 16:44:47,685 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:44:47,737 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:44:47,738 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:44:47,738 WARN L170 areAnnotationChecker]: L110-2 has no Hoare annotation [2022-02-20 16:44:47,738 WARN L170 areAnnotationChecker]: L110-2 has no Hoare annotation [2022-02-20 16:44:47,738 WARN L170 areAnnotationChecker]: L110-1 has no Hoare annotation [2022-02-20 16:44:47,738 WARN L170 areAnnotationChecker]: L110-1 has no Hoare annotation [2022-02-20 16:44:47,738 WARN L170 areAnnotationChecker]: L110-3 has no Hoare annotation [2022-02-20 16:44:47,738 WARN L170 areAnnotationChecker]: L117 has no Hoare annotation [2022-02-20 16:44:47,738 WARN L170 areAnnotationChecker]: L117 has no Hoare annotation [2022-02-20 16:44:47,738 WARN L170 areAnnotationChecker]: L142 has no Hoare annotation [2022-02-20 16:44:47,738 WARN L170 areAnnotationChecker]: L119 has no Hoare annotation [2022-02-20 16:44:47,739 WARN L170 areAnnotationChecker]: L119 has no Hoare annotation [2022-02-20 16:44:47,739 WARN L170 areAnnotationChecker]: L148-2 has no Hoare annotation [2022-02-20 16:44:47,739 WARN L170 areAnnotationChecker]: L148-2 has no Hoare annotation [2022-02-20 16:44:47,739 WARN L170 areAnnotationChecker]: L121 has no Hoare annotation [2022-02-20 16:44:47,739 WARN L170 areAnnotationChecker]: L121 has no Hoare annotation [2022-02-20 16:44:47,739 WARN L170 areAnnotationChecker]: L148-1 has no Hoare annotation [2022-02-20 16:44:47,739 WARN L170 areAnnotationChecker]: L148-1 has no Hoare annotation [2022-02-20 16:44:47,739 WARN L170 areAnnotationChecker]: L148-3 has no Hoare annotation [2022-02-20 16:44:47,739 WARN L170 areAnnotationChecker]: L123 has no Hoare annotation [2022-02-20 16:44:47,740 WARN L170 areAnnotationChecker]: L123 has no Hoare annotation [2022-02-20 16:44:47,740 WARN L170 areAnnotationChecker]: L154 has no Hoare annotation [2022-02-20 16:44:47,740 WARN L170 areAnnotationChecker]: L126-2 has no Hoare annotation [2022-02-20 16:44:47,740 WARN L170 areAnnotationChecker]: L126-2 has no Hoare annotation [2022-02-20 16:44:47,740 WARN L170 areAnnotationChecker]: L123-1 has no Hoare annotation [2022-02-20 16:44:47,740 WARN L170 areAnnotationChecker]: L167 has no Hoare annotation [2022-02-20 16:44:47,740 WARN L170 areAnnotationChecker]: L167 has no Hoare annotation [2022-02-20 16:44:47,740 WARN L170 areAnnotationChecker]: L126-1 has no Hoare annotation [2022-02-20 16:44:47,740 WARN L170 areAnnotationChecker]: L126-1 has no Hoare annotation [2022-02-20 16:44:47,740 WARN L170 areAnnotationChecker]: L134 has no Hoare annotation [2022-02-20 16:44:47,741 WARN L170 areAnnotationChecker]: L134 has no Hoare annotation [2022-02-20 16:44:47,741 WARN L170 areAnnotationChecker]: L168 has no Hoare annotation [2022-02-20 16:44:47,741 WARN L170 areAnnotationChecker]: L168 has no Hoare annotation [2022-02-20 16:44:47,741 WARN L170 areAnnotationChecker]: L172 has no Hoare annotation [2022-02-20 16:44:47,741 WARN L170 areAnnotationChecker]: L134-8 has no Hoare annotation [2022-02-20 16:44:47,741 WARN L170 areAnnotationChecker]: L134-2 has no Hoare annotation [2022-02-20 16:44:47,741 WARN L170 areAnnotationChecker]: L134-2 has no Hoare annotation [2022-02-20 16:44:47,741 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:44:47,741 WARN L170 areAnnotationChecker]: L136-2 has no Hoare annotation [2022-02-20 16:44:47,741 WARN L170 areAnnotationChecker]: L136-2 has no Hoare annotation [2022-02-20 16:44:47,742 WARN L170 areAnnotationChecker]: L134-4 has no Hoare annotation [2022-02-20 16:44:47,742 WARN L170 areAnnotationChecker]: L134-4 has no Hoare annotation [2022-02-20 16:44:47,742 WARN L170 areAnnotationChecker]: L136-1 has no Hoare annotation [2022-02-20 16:44:47,742 WARN L170 areAnnotationChecker]: L136-1 has no Hoare annotation [2022-02-20 16:44:47,742 WARN L170 areAnnotationChecker]: L136-3 has no Hoare annotation [2022-02-20 16:44:47,742 WARN L170 areAnnotationChecker]: L134-6 has no Hoare annotation [2022-02-20 16:44:47,742 WARN L170 areAnnotationChecker]: L134-6 has no Hoare annotation [2022-02-20 16:44:47,742 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2022-02-20 16:44:47,742 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2022-02-20 16:44:47,742 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-20 16:44:47,743 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-20 16:44:47,743 WARN L170 areAnnotationChecker]: L25-3 has no Hoare annotation [2022-02-20 16:44:47,743 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2022-02-20 16:44:47,743 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2022-02-20 16:44:47,743 WARN L170 areAnnotationChecker]: L95 has no Hoare annotation [2022-02-20 16:44:47,743 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 16:44:47,743 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 16:44:47,743 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-02-20 16:44:47,743 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-02-20 16:44:47,744 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2022-02-20 16:44:47,744 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2022-02-20 16:44:47,744 WARN L170 areAnnotationChecker]: L41-2 has no Hoare annotation [2022-02-20 16:44:47,744 WARN L170 areAnnotationChecker]: L41-2 has no Hoare annotation [2022-02-20 16:44:47,744 WARN L170 areAnnotationChecker]: L38-1 has no Hoare annotation [2022-02-20 16:44:47,744 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2022-02-20 16:44:47,744 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2022-02-20 16:44:47,744 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2022-02-20 16:44:47,744 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2022-02-20 16:44:47,744 WARN L170 areAnnotationChecker]: L50-1 has no Hoare annotation [2022-02-20 16:44:47,745 WARN L170 areAnnotationChecker]: L50-1 has no Hoare annotation [2022-02-20 16:44:47,745 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2022-02-20 16:44:47,745 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2022-02-20 16:44:47,745 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 16:44:47,745 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 16:44:47,745 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2022-02-20 16:44:47,745 WARN L170 areAnnotationChecker]: L49-4 has no Hoare annotation [2022-02-20 16:44:47,745 WARN L170 areAnnotationChecker]: L49-4 has no Hoare annotation [2022-02-20 16:44:47,745 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2022-02-20 16:44:47,745 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2022-02-20 16:44:47,746 WARN L170 areAnnotationChecker]: L49-6 has no Hoare annotation [2022-02-20 16:44:47,746 WARN L170 areAnnotationChecker]: L49-6 has no Hoare annotation [2022-02-20 16:44:47,746 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2022-02-20 16:44:47,746 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2022-02-20 16:44:47,746 WARN L170 areAnnotationChecker]: L84 has no Hoare annotation [2022-02-20 16:44:47,746 WARN L170 areAnnotationChecker]: L84 has no Hoare annotation [2022-02-20 16:44:47,746 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 16:44:47,746 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 16:44:47,746 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2022-02-20 16:44:47,746 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2022-02-20 16:44:47,747 WARN L170 areAnnotationChecker]: L86 has no Hoare annotation [2022-02-20 16:44:47,747 WARN L170 areAnnotationChecker]: L86 has no Hoare annotation [2022-02-20 16:44:47,747 WARN L170 areAnnotationChecker]: L92 has no Hoare annotation [2022-02-20 16:44:47,747 WARN L170 areAnnotationChecker]: L92 has no Hoare annotation [2022-02-20 16:44:47,747 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:44:47,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:44:47 BoogieIcfgContainer [2022-02-20 16:44:47,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:44:47,749 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:44:47,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:44:47,749 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:44:47,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:44:46" (3/4) ... [2022-02-20 16:44:47,754 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:44:47,754 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:44:47,756 INFO L158 Benchmark]: Toolchain (without parser) took 1917.07ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 85.2MB in the beginning and 111.2MB in the end (delta: -26.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-02-20 16:44:47,757 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 53.2MB in the beginning and 53.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:44:47,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.12ms. Allocated memory is still 109.1MB. Free memory was 85.0MB in the beginning and 71.0MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-02-20 16:44:47,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.91ms. Allocated memory is still 109.1MB. Free memory was 70.8MB in the beginning and 67.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-20 16:44:47,759 INFO L158 Benchmark]: Boogie Preprocessor took 54.19ms. Allocated memory is still 109.1MB. Free memory was 67.4MB in the beginning and 64.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:44:47,759 INFO L158 Benchmark]: RCFGBuilder took 665.77ms. Allocated memory is still 109.1MB. Free memory was 64.9MB in the beginning and 67.3MB in the end (delta: -2.4MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2022-02-20 16:44:47,760 INFO L158 Benchmark]: TraceAbstraction took 857.30ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 66.9MB in the beginning and 111.9MB in the end (delta: -45.0MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2022-02-20 16:44:47,760 INFO L158 Benchmark]: Witness Printer took 5.66ms. Allocated memory is still 142.6MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:44:47,763 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory was 53.2MB in the beginning and 53.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.12ms. Allocated memory is still 109.1MB. Free memory was 85.0MB in the beginning and 71.0MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.91ms. Allocated memory is still 109.1MB. Free memory was 70.8MB in the beginning and 67.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.19ms. Allocated memory is still 109.1MB. Free memory was 67.4MB in the beginning and 64.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 665.77ms. Allocated memory is still 109.1MB. Free memory was 64.9MB in the beginning and 67.3MB in the end (delta: -2.4MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * TraceAbstraction took 857.30ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 66.9MB in the beginning and 111.9MB in the end (delta: -45.0MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * Witness Printer took 5.66ms. Allocated memory is still 142.6MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. * 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: 168]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryFLOAToperation at line 163, overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 153. Possible FailurePath: [L13-L17] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L19] static const float zero_log = 0.0; [L99-L102] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L104] static const float zero = 0.0; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L163] float x = -0.0f; [L164] CALL, EXPR __ieee754_log10f(x) [L107] float y, z; [L108] __int32_t i, k, hx; VAL [\old(x)=8589934592, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=8589934592, zero=0, zero_log=0] [L111] ieee_float_shape_type gf_u; [L112] gf_u.value = (x) [L113] EXPR gf_u.word [L113] (hx) = gf_u.word [L116] k = 0 VAL [\old(x)=8589934592, hx=-2, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=8589934592, zero=0, zero_log=0] [L117] COND TRUE ((hx & 0x7fffffff) == 0) [L118] return -two25_log10 / zero; VAL [\old(x)=8589934592, hx=-2, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=8589934592, zero=0, zero_log=0] [L164] RET, EXPR __ieee754_log10f(x) [L164] float res = __ieee754_log10f(x); [L167] CALL, EXPR isinf_float(res) [L147] __int32_t ix; VAL [\old(x)=8589934591, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=8589934591, zero=0, zero_log=0] [L149] ieee_float_shape_type gf_u; [L150] gf_u.value = (x) [L151] EXPR gf_u.word [L151] (ix) = gf_u.word [L153] ix &= 0x7fffffff [L154] return ((ix) == 0x7f800000L); VAL [\old(x)=8589934591, \result=0, ivln10_log10=43429449201/100000000000, ix=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=8589934591, zero=0, zero_log=0] [L167] RET, EXPR isinf_float(res) [L167] COND TRUE !isinf_float(res) [L168] reach_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=8589934591, two25_log=33554432, two25_log10=33554432, x=8589934592, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 76 mSDtfsCounter, 0 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=56occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-20 16:44:47,807 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb6b1424a272796845acc1f70223dfacd3f866998a144ff42a8a4da1c8cca40c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:44:49,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:44:49,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:44:49,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:44:49,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:44:49,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:44:49,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:44:49,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:44:49,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:44:49,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:44:49,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:44:49,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:44:49,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:44:49,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:44:49,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:44:49,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:44:49,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:44:49,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:44:49,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:44:49,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:44:49,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:44:49,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:44:49,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:44:49,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:44:49,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:44:49,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:44:49,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:44:49,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:44:49,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:44:49,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:44:49,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:44:49,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:44:49,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:44:49,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:44:49,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:44:49,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:44:49,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:44:49,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:44:49,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:44:49,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:44:49,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:44:49,743 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:44:49,774 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:44:49,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:44:49,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:44:49,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:44:49,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:44:49,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:44:49,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:44:49,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:44:49,778 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:44:49,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:44:49,779 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:44:49,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:44:49,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:44:49,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:44:49,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:44:49,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:44:49,780 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:44:49,780 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:44:49,781 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:44:49,781 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:44:49,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:44:49,781 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:44:49,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:44:49,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:44:49,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:44:49,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:44:49,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:44:49,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:44:49,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:44:49,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:44:49,783 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:44:49,783 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:44:49,783 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:44:49,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:44:49,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:44:49,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:44:49,784 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb6b1424a272796845acc1f70223dfacd3f866998a144ff42a8a4da1c8cca40c [2022-02-20 16:44:50,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:44:50,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:44:50,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:44:50,098 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:44:50,098 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:44:50,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c [2022-02-20 16:44:50,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8965792d0/71c875144d4247e98ce1d7c17a8649bb/FLAG2c57e4089 [2022-02-20 16:44:50,604 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:44:50,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c [2022-02-20 16:44:50,617 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8965792d0/71c875144d4247e98ce1d7c17a8649bb/FLAG2c57e4089 [2022-02-20 16:44:51,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8965792d0/71c875144d4247e98ce1d7c17a8649bb [2022-02-20 16:44:51,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:44:51,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:44:51,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:44:51,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:44:51,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:44:51,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:44:51" (1/1) ... [2022-02-20 16:44:51,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3544740c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:51, skipping insertion in model container [2022-02-20 16:44:51,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:44:51" (1/1) ... [2022-02-20 16:44:51,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:44:51,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:44:51,270 WARN L230 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_0960b.c[4186,4199] [2022-02-20 16:44:51,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:44:51,299 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:44:51,353 WARN L230 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_0960b.c[4186,4199] [2022-02-20 16:44:51,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:44:51,382 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:44:51,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:51 WrapperNode [2022-02-20 16:44:51,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:44:51,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:44:51,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:44:51,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:44:51,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:51" (1/1) ... [2022-02-20 16:44:51,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:51" (1/1) ... [2022-02-20 16:44:51,460 INFO L137 Inliner]: procedures = 20, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 219 [2022-02-20 16:44:51,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:44:51,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:44:51,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:44:51,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:44:51,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:51" (1/1) ... [2022-02-20 16:44:51,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:51" (1/1) ... [2022-02-20 16:44:51,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:51" (1/1) ... [2022-02-20 16:44:51,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:51" (1/1) ... [2022-02-20 16:44:51,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:51" (1/1) ... [2022-02-20 16:44:51,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:51" (1/1) ... [2022-02-20 16:44:51,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:51" (1/1) ... [2022-02-20 16:44:51,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:44:51,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:44:51,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:44:51,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:44:51,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:51" (1/1) ... [2022-02-20 16:44:51,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:44:51,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:44:51,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:44:51,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:44:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:44:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:44:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:44:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-02-20 16:44:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-02-20 16:44:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:44:51,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:44:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-02-20 16:44:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-02-20 16:44:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:44:51,727 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:44:51,728 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:45:15,397 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:45:15,403 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:45:15,403 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-02-20 16:45:15,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:15 BoogieIcfgContainer [2022-02-20 16:45:15,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:45:15,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:45:15,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:45:15,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:45:15,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:44:51" (1/3) ... [2022-02-20 16:45:15,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221ad81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:15, skipping insertion in model container [2022-02-20 16:45:15,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:44:51" (2/3) ... [2022-02-20 16:45:15,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221ad81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:15, skipping insertion in model container [2022-02-20 16:45:15,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:15" (3/3) ... [2022-02-20 16:45:15,411 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960b.c [2022-02-20 16:45:15,415 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:45:15,416 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:45:15,464 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:45:15,474 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:45:15,474 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:45:15,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 46 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:15,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-20 16:45:15,489 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:45:15,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:45:15,490 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:45:15,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:45:15,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1655029915, now seen corresponding path program 1 times [2022-02-20 16:45:15,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:45:15,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750909952] [2022-02-20 16:45:15,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:45:15,511 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:45:15,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:45:15,516 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 16:45:15,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:45:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:16,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 16:45:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:16,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:45:16,202 INFO L290 TraceCheckUtils]: 0: Hoare triple {50#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(21bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32);~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE());~two25_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~ivln10_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.43429449201));~log10_2hi_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.30102920532));~log10_2lo_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 7.9034151668E-7));~zero~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {50#true} is VALID [2022-02-20 16:45:16,202 INFO L290 TraceCheckUtils]: 1: Hoare triple {50#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_#t~ret13#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~fp.neg~FLOAT(~Pluszero~FLOAT());assume { :begin_inline___ieee754_log10f } true;__ieee754_log10f_#in~x#1 := main_~x~0#1;havoc __ieee754_log10f_#res#1;havoc __ieee754_log10f_#t~mem7#1, __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, __ieee754_log10f_#t~mem8#1, __ieee754_log10f_~#gf_u~3#1.base, __ieee754_log10f_~#gf_u~3#1.offset, __ieee754_log10f_#t~mem9#1, __ieee754_log10f_~#sf_u~1#1.base, __ieee754_log10f_~#sf_u~1#1.offset, __ieee754_log10f_#t~ret10#1, __ieee754_log10f_~x#1, __ieee754_log10f_~y~0#1, __ieee754_log10f_~z~1#1, __ieee754_log10f_~i~1#1, __ieee754_log10f_~k~1#1, __ieee754_log10f_~hx~0#1;__ieee754_log10f_~x#1 := __ieee754_log10f_#in~x#1;havoc __ieee754_log10f_~y~0#1;havoc __ieee754_log10f_~z~1#1;havoc __ieee754_log10f_~i~1#1;havoc __ieee754_log10f_~k~1#1;havoc __ieee754_log10f_~hx~0#1; {50#true} is VALID [2022-02-20 16:45:16,203 INFO L290 TraceCheckUtils]: 2: Hoare triple {50#true} assume !true; {51#false} is VALID [2022-02-20 16:45:16,204 INFO L290 TraceCheckUtils]: 3: Hoare triple {51#false} __ieee754_log10f_~k~1#1 := 0bv32; {51#false} is VALID [2022-02-20 16:45:16,204 INFO L290 TraceCheckUtils]: 4: Hoare triple {51#false} assume 0bv32 == ~bvand32(2147483647bv32, __ieee754_log10f_~hx~0#1);__ieee754_log10f_#res#1 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~two25_log10~0), ~zero~0); {51#false} is VALID [2022-02-20 16:45:16,205 INFO L290 TraceCheckUtils]: 5: Hoare triple {51#false} main_#t~ret12#1 := __ieee754_log10f_#res#1;assume { :end_inline___ieee754_log10f } true;main_~res~0#1 := main_#t~ret12#1;havoc main_#t~ret12#1;assume { :begin_inline_isinf_float } true;isinf_float_#in~x#1 := main_~res~0#1;havoc isinf_float_#res#1;havoc isinf_float_#t~mem11#1, isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset, isinf_float_~x#1, isinf_float_~ix~1#1;isinf_float_~x#1 := isinf_float_#in~x#1;havoc isinf_float_~ix~1#1; {51#false} is VALID [2022-02-20 16:45:16,205 INFO L290 TraceCheckUtils]: 6: Hoare triple {51#false} assume !true; {51#false} is VALID [2022-02-20 16:45:16,206 INFO L290 TraceCheckUtils]: 7: Hoare triple {51#false} isinf_float_~ix~1#1 := ~bvand32(2147483647bv32, isinf_float_~ix~1#1);isinf_float_#res#1 := (if 2139095040bv32 == isinf_float_~ix~1#1 then 1bv32 else 0bv32); {51#false} is VALID [2022-02-20 16:45:16,206 INFO L290 TraceCheckUtils]: 8: Hoare triple {51#false} main_#t~ret13#1 := isinf_float_#res#1;assume { :end_inline_isinf_float } true; {51#false} is VALID [2022-02-20 16:45:16,206 INFO L290 TraceCheckUtils]: 9: Hoare triple {51#false} assume 0bv32 == main_#t~ret13#1;havoc main_#t~ret13#1; {51#false} is VALID [2022-02-20 16:45:16,207 INFO L290 TraceCheckUtils]: 10: Hoare triple {51#false} assume !false; {51#false} is VALID [2022-02-20 16:45:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:45:16,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:45:16,208 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:45:16,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750909952] [2022-02-20 16:45:16,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [750909952] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:45:16,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:45:16,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:45:16,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215229875] [2022-02-20 16:45:16,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:45:16,219 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-02-20 16:45:16,220 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:45:16,223 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:16,391 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:16,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:45:16,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:45:16,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:45:16,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:16,417 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 46 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:37,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:37,255 INFO L93 Difference]: Finished difference Result 92 states and 150 transitions. [2022-02-20 16:45:37,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:45:37,255 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-02-20 16:45:37,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:45:37,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:37,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 150 transitions. [2022-02-20 16:45:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:37,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 150 transitions. [2022-02-20 16:45:37,270 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 150 transitions. [2022-02-20 16:45:41,095 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 150 edges. 150 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:41,103 INFO L225 Difference]: With dead ends: 92 [2022-02-20 16:45:41,104 INFO L226 Difference]: Without dead ends: 44 [2022-02-20 16:45:41,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:41,110 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:45:41,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:45:41,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-02-20 16:45:41,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-02-20 16:45:41,142 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:45:41,144 INFO L82 GeneralOperation]: Start isEquivalent. First operand 44 states. Second operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:41,145 INFO L74 IsIncluded]: Start isIncluded. First operand 44 states. Second operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:41,146 INFO L87 Difference]: Start difference. First operand 44 states. Second operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:41,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:41,151 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2022-02-20 16:45:41,152 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2022-02-20 16:45:41,152 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:41,153 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:41,156 INFO L74 IsIncluded]: Start isIncluded. First operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 44 states. [2022-02-20 16:45:41,156 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 44 states. [2022-02-20 16:45:41,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:41,165 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2022-02-20 16:45:41,166 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2022-02-20 16:45:41,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:41,166 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:41,167 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:45:41,167 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:45:41,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:41,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2022-02-20 16:45:41,175 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 11 [2022-02-20 16:45:41,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:45:41,176 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2022-02-20 16:45:41,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2022-02-20 16:45:41,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-20 16:45:41,177 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:45:41,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:45:41,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 16:45:41,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:45:41,408 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:45:41,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:45:41,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1598915326, now seen corresponding path program 1 times [2022-02-20 16:45:41,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:45:41,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795317894] [2022-02-20 16:45:41,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:45:41,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:45:41,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:45:41,412 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 16:45:41,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-02-20 16:45:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:41,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-20 16:45:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:42,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:45:43,234 INFO L290 TraceCheckUtils]: 0: Hoare triple {340#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(21bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32);~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE());~two25_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~ivln10_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.43429449201));~log10_2hi_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.30102920532));~log10_2lo_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 7.9034151668E-7));~zero~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {345#(and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))))} is VALID [2022-02-20 16:45:43,235 INFO L290 TraceCheckUtils]: 1: Hoare triple {345#(and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))))} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_#t~ret13#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~fp.neg~FLOAT(~Pluszero~FLOAT());assume { :begin_inline___ieee754_log10f } true;__ieee754_log10f_#in~x#1 := main_~x~0#1;havoc __ieee754_log10f_#res#1;havoc __ieee754_log10f_#t~mem7#1, __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, __ieee754_log10f_#t~mem8#1, __ieee754_log10f_~#gf_u~3#1.base, __ieee754_log10f_~#gf_u~3#1.offset, __ieee754_log10f_#t~mem9#1, __ieee754_log10f_~#sf_u~1#1.base, __ieee754_log10f_~#sf_u~1#1.offset, __ieee754_log10f_#t~ret10#1, __ieee754_log10f_~x#1, __ieee754_log10f_~y~0#1, __ieee754_log10f_~z~1#1, __ieee754_log10f_~i~1#1, __ieee754_log10f_~k~1#1, __ieee754_log10f_~hx~0#1;__ieee754_log10f_~x#1 := __ieee754_log10f_#in~x#1;havoc __ieee754_log10f_~y~0#1;havoc __ieee754_log10f_~z~1#1;havoc __ieee754_log10f_~i~1#1;havoc __ieee754_log10f_~k~1#1;havoc __ieee754_log10f_~hx~0#1; {345#(and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))))} is VALID [2022-02-20 16:45:43,236 INFO L290 TraceCheckUtils]: 2: Hoare triple {345#(and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))))} call __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_log10f_~x#1, __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, 4bv32);call __ieee754_log10f_#t~mem7#1 := read~intINTTYPE4(__ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, 4bv32);__ieee754_log10f_~hx~0#1 := __ieee754_log10f_#t~mem7#1;havoc __ieee754_log10f_#t~mem7#1;call ULTIMATE.dealloc(__ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset);havoc __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset; {345#(and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))))} is VALID [2022-02-20 16:45:43,236 INFO L290 TraceCheckUtils]: 3: Hoare triple {345#(and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))))} goto; {345#(and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))))} is VALID [2022-02-20 16:45:43,237 INFO L290 TraceCheckUtils]: 4: Hoare triple {345#(and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))))} __ieee754_log10f_~k~1#1 := 0bv32; {345#(and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))))} is VALID [2022-02-20 16:45:43,352 INFO L290 TraceCheckUtils]: 5: Hoare triple {345#(and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))))} assume 0bv32 == ~bvand32(2147483647bv32, __ieee754_log10f_~hx~0#1);__ieee754_log10f_#res#1 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~two25_log10~0), ~zero~0); {361#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_log10f_#res#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))))} is VALID [2022-02-20 16:45:43,353 INFO L290 TraceCheckUtils]: 6: Hoare triple {361#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_log10f_#res#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))))} main_#t~ret12#1 := __ieee754_log10f_#res#1;assume { :end_inline___ieee754_log10f } true;main_~res~0#1 := main_#t~ret12#1;havoc main_#t~ret12#1;assume { :begin_inline_isinf_float } true;isinf_float_#in~x#1 := main_~res~0#1;havoc isinf_float_#res#1;havoc isinf_float_#t~mem11#1, isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset, isinf_float_~x#1, isinf_float_~ix~1#1;isinf_float_~x#1 := isinf_float_#in~x#1;havoc isinf_float_~ix~1#1; {365#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_isinf_float_~x#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))))} is VALID [2022-02-20 16:45:43,359 INFO L290 TraceCheckUtils]: 7: Hoare triple {365#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_isinf_float_~x#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))))} call isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(isinf_float_~x#1, isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset, 4bv32);call isinf_float_#t~mem11#1 := read~intINTTYPE4(isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset, 4bv32);isinf_float_~ix~1#1 := isinf_float_#t~mem11#1;havoc isinf_float_#t~mem11#1;call ULTIMATE.dealloc(isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset);havoc isinf_float_~#gf_u~4#1.base, isinf_float_~#gf_u~4#1.offset; {369#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_isinf_float_~ix~1#1|) ((_ extract 30 23) |ULTIMATE.start_isinf_float_~ix~1#1|) ((_ extract 22 0) |ULTIMATE.start_isinf_float_~ix~1#1|)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))))} is VALID [2022-02-20 16:45:43,362 INFO L290 TraceCheckUtils]: 8: Hoare triple {369#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_isinf_float_~ix~1#1|) ((_ extract 30 23) |ULTIMATE.start_isinf_float_~ix~1#1|) ((_ extract 22 0) |ULTIMATE.start_isinf_float_~ix~1#1|)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))))} goto; {369#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_isinf_float_~ix~1#1|) ((_ extract 30 23) |ULTIMATE.start_isinf_float_~ix~1#1|) ((_ extract 22 0) |ULTIMATE.start_isinf_float_~ix~1#1|)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))))} is VALID [2022-02-20 16:45:43,366 INFO L290 TraceCheckUtils]: 9: Hoare triple {369#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_isinf_float_~ix~1#1|) ((_ extract 30 23) |ULTIMATE.start_isinf_float_~ix~1#1|) ((_ extract 22 0) |ULTIMATE.start_isinf_float_~ix~1#1|)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))))} isinf_float_~ix~1#1 := ~bvand32(2147483647bv32, isinf_float_~ix~1#1);isinf_float_#res#1 := (if 2139095040bv32 == isinf_float_~ix~1#1 then 1bv32 else 0bv32); {376#(= |ULTIMATE.start_isinf_float_#res#1| (_ bv1 32))} is VALID [2022-02-20 16:45:43,367 INFO L290 TraceCheckUtils]: 10: Hoare triple {376#(= |ULTIMATE.start_isinf_float_#res#1| (_ bv1 32))} main_#t~ret13#1 := isinf_float_#res#1;assume { :end_inline_isinf_float } true; {380#(= |ULTIMATE.start_main_#t~ret13#1| (_ bv1 32))} is VALID [2022-02-20 16:45:43,368 INFO L290 TraceCheckUtils]: 11: Hoare triple {380#(= |ULTIMATE.start_main_#t~ret13#1| (_ bv1 32))} assume 0bv32 == main_#t~ret13#1;havoc main_#t~ret13#1; {341#false} is VALID [2022-02-20 16:45:43,368 INFO L290 TraceCheckUtils]: 12: Hoare triple {341#false} assume !false; {341#false} is VALID [2022-02-20 16:45:43,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:45:43,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:45:43,368 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:45:43,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795317894] [2022-02-20 16:45:43,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795317894] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:45:43,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:45:43,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-20 16:45:43,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358613684] [2022-02-20 16:45:43,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:45:43,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-02-20 16:45:43,370 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:45:43,371 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:43,531 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:43,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-20 16:45:43,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:45:43,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-20 16:45:43,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-20 16:45:43,532 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:50,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-20 16:45:57,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-20 16:46:00,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []