./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/floats-cbmc-regression/float-no-simp7.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 9e271d51a4895d6829627c8d6a2b55a420fbf6e6ae6e508e3db072a395850af3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:05:19,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:05:19,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:05:19,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:05:19,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:05:19,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:05:19,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:05:19,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:05:19,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:05:19,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:05:19,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:05:19,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:05:19,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:05:19,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:05:19,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:05:19,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:05:19,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:05:19,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:05:19,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:05:19,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:05:19,068 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:05:19,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:05:19,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:05:19,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:05:19,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:05:19,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:05:19,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:05:19,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:05:19,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:05:19,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:05:19,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:05:19,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:05:19,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:05:19,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:05:19,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:05:19,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:05:19,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:05:19,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:05:19,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:05:19,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:05:19,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:05:19,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:05:19,091 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 14:05:19,124 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:05:19,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:05:19,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:05:19,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:05:19,126 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:05:19,126 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:05:19,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:05:19,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:05:19,126 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:05:19,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:05:19,127 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:05:19,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 14:05:19,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:05:19,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:05:19,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:05:19,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:05:19,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:05:19,128 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:05:19,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:05:19,128 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:05:19,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:05:19,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:05:19,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:05:19,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:05:19,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:05:19,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:05:19,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:05:19,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:05:19,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 14:05:19,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 14:05:19,129 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:05:19,130 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:05:19,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:05:19,130 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e271d51a4895d6829627c8d6a2b55a420fbf6e6ae6e508e3db072a395850af3 [2022-07-13 14:05:19,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:05:19,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:05:19,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:05:19,359 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:05:19,359 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:05:19,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2022-07-13 14:05:19,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9a2247af/061197f2edc94bb59c9fe285ad63f5ae/FLAG76ea2b607 [2022-07-13 14:05:19,804 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:05:19,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2022-07-13 14:05:19,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9a2247af/061197f2edc94bb59c9fe285ad63f5ae/FLAG76ea2b607 [2022-07-13 14:05:19,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9a2247af/061197f2edc94bb59c9fe285ad63f5ae [2022-07-13 14:05:19,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:05:19,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:05:19,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:05:19,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:05:19,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:05:19,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:05:19" (1/1) ... [2022-07-13 14:05:19,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c861917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:19, skipping insertion in model container [2022-07-13 14:05:19,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:05:19" (1/1) ... [2022-07-13 14:05:19,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:05:19,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:05:19,987 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/floats-cbmc-regression/float-no-simp7.c[440,453] [2022-07-13 14:05:19,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:05:19,997 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:05:20,010 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/floats-cbmc-regression/float-no-simp7.c[440,453] [2022-07-13 14:05:20,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:05:20,021 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:05:20,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:20 WrapperNode [2022-07-13 14:05:20,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:05:20,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:05:20,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:05:20,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:05:20,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:20" (1/1) ... [2022-07-13 14:05:20,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:20" (1/1) ... [2022-07-13 14:05:20,049 INFO L137 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-07-13 14:05:20,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:05:20,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:05:20,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:05:20,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:05:20,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:20" (1/1) ... [2022-07-13 14:05:20,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:20" (1/1) ... [2022-07-13 14:05:20,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:20" (1/1) ... [2022-07-13 14:05:20,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:20" (1/1) ... [2022-07-13 14:05:20,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:20" (1/1) ... [2022-07-13 14:05:20,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:20" (1/1) ... [2022-07-13 14:05:20,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:20" (1/1) ... [2022-07-13 14:05:20,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:05:20,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:05:20,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:05:20,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:05:20,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:20" (1/1) ... [2022-07-13 14:05:20,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:05:20,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:05:20,090 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) [2022-07-13 14:05:20,096 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 [2022-07-13 14:05:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:05:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:05:20,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:05:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 14:05:20,170 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:05:20,171 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:05:20,231 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:05:20,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:05:20,242 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 14:05:20,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:05:20 BoogieIcfgContainer [2022-07-13 14:05:20,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:05:20,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:05:20,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:05:20,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:05:20,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:05:19" (1/3) ... [2022-07-13 14:05:20,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f00dad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:05:20, skipping insertion in model container [2022-07-13 14:05:20,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:20" (2/3) ... [2022-07-13 14:05:20,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f00dad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:05:20, skipping insertion in model container [2022-07-13 14:05:20,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:05:20" (3/3) ... [2022-07-13 14:05:20,273 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2022-07-13 14:05:20,285 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:05:20,298 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:05:20,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:05:20,375 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5aa10de, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3f93eb7e [2022-07-13 14:05:20,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:05:20,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-07-13 14:05:20,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-13 14:05:20,384 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:05:20,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-13 14:05:20,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:05:20,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:05:20,389 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-07-13 14:05:20,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:05:20,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074711737] [2022-07-13 14:05:20,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:05:20,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:05:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:05:20,492 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 14:05:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:05:20,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 14:05:20,540 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 14:05:20,542 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:05:20,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 14:05:20,550 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 14:05:20,554 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:05:20,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:05:20 BoogieIcfgContainer [2022-07-13 14:05:20,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:05:20,576 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:05:20,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:05:20,577 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:05:20,577 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:05:20" (3/4) ... [2022-07-13 14:05:20,580 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 14:05:20,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:05:20,581 INFO L158 Benchmark]: Toolchain (without parser) took 758.25ms. Allocated memory is still 86.0MB. Free memory was 51.6MB in the beginning and 63.6MB in the end (delta: -12.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:05:20,583 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 71.3MB. Free memory was 41.2MB in the beginning and 41.1MB in the end (delta: 81.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:05:20,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.73ms. Allocated memory is still 86.0MB. Free memory was 51.4MB in the beginning and 64.1MB in the end (delta: -12.7MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2022-07-13 14:05:20,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.64ms. Allocated memory is still 86.0MB. Free memory was 64.1MB in the beginning and 62.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:05:20,585 INFO L158 Benchmark]: Boogie Preprocessor took 13.49ms. Allocated memory is still 86.0MB. Free memory was 62.7MB in the beginning and 61.7MB in the end (delta: 987.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:05:20,589 INFO L158 Benchmark]: RCFGBuilder took 179.86ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 53.7MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:05:20,590 INFO L158 Benchmark]: TraceAbstraction took 320.70ms. Allocated memory is still 86.0MB. Free memory was 53.0MB in the beginning and 63.6MB in the end (delta: -10.6MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2022-07-13 14:05:20,592 INFO L158 Benchmark]: Witness Printer took 3.63ms. Allocated memory is still 86.0MB. Free memory was 63.6MB in the beginning and 63.6MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:05:20,598 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 71.3MB. Free memory was 41.2MB in the beginning and 41.1MB in the end (delta: 81.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 197.73ms. Allocated memory is still 86.0MB. Free memory was 51.4MB in the beginning and 64.1MB in the end (delta: -12.7MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.64ms. Allocated memory is still 86.0MB. Free memory was 64.1MB in the beginning and 62.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.49ms. Allocated memory is still 86.0MB. Free memory was 62.7MB in the beginning and 61.7MB in the end (delta: 987.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 179.86ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 53.7MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 320.70ms. Allocated memory is still 86.0MB. Free memory was 53.0MB in the beginning and 63.6MB in the end (delta: -10.6MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Witness Printer took 3.63ms. Allocated memory is still 86.0MB. Free memory was 63.6MB in the beginning and 63.6MB in the end (delta: 2.6kB). 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: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 10, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L6] float f = 0x1.9e0c22p-101f; [L7] float g = -0x1.3c9014p-50f; [L8] float target = -0x1p-149f; [L10] float result = f * g; VAL [\old(argc)=50, argc=50, argv={49:51}, argv={49:51}, f=13567505/21267647932558653966460912964485513216] [L12] COND TRUE !(result == target) VAL [\old(argc)=50, argc=50, argv={49:51}, argv={49:51}, f=13567505/21267647932558653966460912964485513216] [L12] reach_error() VAL [\old(argc)=50, argc=50, argv={49:51}, argv={49:51}, f=13567505/21267647932558653966460912964485513216] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-07-13 14:05:20,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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 -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/floats-cbmc-regression/float-no-simp7.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 9e271d51a4895d6829627c8d6a2b55a420fbf6e6ae6e508e3db072a395850af3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:05:22,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:05:22,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:05:22,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:05:22,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:05:22,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:05:22,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:05:22,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:05:22,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:05:22,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:05:22,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:05:22,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:05:22,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:05:22,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:05:22,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:05:22,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:05:22,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:05:22,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:05:22,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:05:22,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:05:22,613 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:05:22,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:05:22,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:05:22,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:05:22,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:05:22,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:05:22,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:05:22,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:05:22,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:05:22,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:05:22,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:05:22,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:05:22,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:05:22,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:05:22,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:05:22,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:05:22,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:05:22,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:05:22,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:05:22,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:05:22,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:05:22,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:05:22,647 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 14:05:22,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:05:22,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:05:22,679 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:05:22,679 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:05:22,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:05:22,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:05:22,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:05:22,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:05:22,683 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:05:22,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:05:22,684 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:05:22,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:05:22,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:05:22,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:05:22,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:05:22,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:05:22,685 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 14:05:22,685 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 14:05:22,686 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 14:05:22,686 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:05:22,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:05:22,686 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:05:22,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:05:22,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:05:22,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:05:22,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:05:22,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:05:22,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:05:22,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:05:22,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:05:22,688 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 14:05:22,689 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 14:05:22,689 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:05:22,689 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:05:22,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:05:22,690 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 14:05:22,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e271d51a4895d6829627c8d6a2b55a420fbf6e6ae6e508e3db072a395850af3 [2022-07-13 14:05:23,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:05:23,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:05:23,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:05:23,034 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:05:23,035 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:05:23,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2022-07-13 14:05:23,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee1d50643/8fbef3d935204775ad97b5a54fe7f4f9/FLAG13080cf1f [2022-07-13 14:05:23,486 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:05:23,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2022-07-13 14:05:23,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee1d50643/8fbef3d935204775ad97b5a54fe7f4f9/FLAG13080cf1f [2022-07-13 14:05:23,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee1d50643/8fbef3d935204775ad97b5a54fe7f4f9 [2022-07-13 14:05:23,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:05:23,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:05:23,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:05:23,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:05:23,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:05:23,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:05:23" (1/1) ... [2022-07-13 14:05:23,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f3d71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:23, skipping insertion in model container [2022-07-13 14:05:23,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:05:23" (1/1) ... [2022-07-13 14:05:23,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:05:23,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:05:24,051 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/floats-cbmc-regression/float-no-simp7.c[440,453] [2022-07-13 14:05:24,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:05:24,066 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:05:24,103 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/floats-cbmc-regression/float-no-simp7.c[440,453] [2022-07-13 14:05:24,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:05:24,139 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:05:24,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:24 WrapperNode [2022-07-13 14:05:24,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:05:24,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:05:24,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:05:24,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:05:24,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:24" (1/1) ... [2022-07-13 14:05:24,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:24" (1/1) ... [2022-07-13 14:05:24,179 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-07-13 14:05:24,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:05:24,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:05:24,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:05:24,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:05:24,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:24" (1/1) ... [2022-07-13 14:05:24,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:24" (1/1) ... [2022-07-13 14:05:24,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:24" (1/1) ... [2022-07-13 14:05:24,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:24" (1/1) ... [2022-07-13 14:05:24,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:24" (1/1) ... [2022-07-13 14:05:24,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:24" (1/1) ... [2022-07-13 14:05:24,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:24" (1/1) ... [2022-07-13 14:05:24,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:05:24,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:05:24,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:05:24,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:05:24,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:24" (1/1) ... [2022-07-13 14:05:24,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:05:24,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:05:24,248 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) [2022-07-13 14:05:24,274 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 [2022-07-13 14:05:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:05:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:05:24,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:05:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 14:05:24,359 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:05:24,360 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:05:24,553 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:05:24,558 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:05:24,558 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 14:05:24,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:05:24 BoogieIcfgContainer [2022-07-13 14:05:24,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:05:24,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:05:24,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:05:24,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:05:24,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:05:23" (1/3) ... [2022-07-13 14:05:24,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5eef2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:05:24, skipping insertion in model container [2022-07-13 14:05:24,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:24" (2/3) ... [2022-07-13 14:05:24,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5eef2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:05:24, skipping insertion in model container [2022-07-13 14:05:24,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:05:24" (3/3) ... [2022-07-13 14:05:24,567 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2022-07-13 14:05:24,588 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:05:24,596 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:05:24,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:05:24,646 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3f8f5635, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6ed56a0c [2022-07-13 14:05:24,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:05:24,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-07-13 14:05:24,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-13 14:05:24,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:05:24,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-13 14:05:24,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:05:24,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:05:24,665 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-07-13 14:05:24,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:05:24,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138452288] [2022-07-13 14:05:24,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:05:24,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:05:24,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:05:24,695 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) [2022-07-13 14:05:24,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 14:05:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:05:24,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 14:05:24,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:05:24,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:05:24,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:05:24,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:05:24,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138452288] [2022-07-13 14:05:24,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138452288] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:05:24,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:05:24,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 14:05:24,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839517139] [2022-07-13 14:05:24,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:05:24,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 14:05:24,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:05:24,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 14:05:24,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 14:05:24,966 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-07-13 14:05:25,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:05:25,118 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-07-13 14:05:25,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 14:05:25,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-07-13 14:05:25,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:05:25,126 INFO L225 Difference]: With dead ends: 13 [2022-07-13 14:05:25,126 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 14:05:25,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:05:25,138 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 14:05:25,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 14:05:25,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 14:05:25,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 14:05:25,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-07-13 14:05:25,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 14:05:25,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-07-13 14:05:25,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:05:25,160 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 14:05:25,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-07-13 14:05:25,161 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 14:05:25,161 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 14:05:25,166 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:05:25,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-13 14:05:25,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:05:25,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 14:05:25,398 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 14:05:25,398 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 14:05:25,398 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 14:05:25,398 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 14:05:25,399 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2022-07-13 14:05:25,399 INFO L895 garLoopResultBuilder]: At program point L14(lines 5 15) the Hoare annotation is: (and (= |ULTIMATE.start_main_~result~0#1| (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 13567505.0 21267647932558653966460912964485513216.0)) (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 5186565.0 4722366482869645213696.0))))) (= (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 713623846352979940529142984724747568191373312.0))) |ULTIMATE.start_main_~target~0#1|) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-13 14:05:25,399 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-07-13 14:05:25,400 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2022-07-13 14:05:25,400 INFO L899 garLoopResultBuilder]: For program point L12-3(line 12) no Hoare annotation was computed. [2022-07-13 14:05:25,403 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 14:05:25,409 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:05:25,419 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,421 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,421 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,422 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,422 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,425 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,427 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,427 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,428 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,428 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:05:25 BoogieIcfgContainer [2022-07-13 14:05:25,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:05:25,432 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:05:25,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:05:25,433 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:05:25,434 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:05:24" (3/4) ... [2022-07-13 14:05:25,437 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 14:05:25,446 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-13 14:05:25,447 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-13 14:05:25,447 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 14:05:25,448 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 14:05:25,449 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 14:05:25,477 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 14:05:25,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:05:25,480 INFO L158 Benchmark]: Toolchain (without parser) took 1560.33ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 38.7MB in the beginning and 37.4MB in the end (delta: 1.3MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2022-07-13 14:05:25,480 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 41.3MB in the beginning and 41.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:05:25,481 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.26ms. Allocated memory is still 60.8MB. Free memory was 38.6MB in the beginning and 44.1MB in the end (delta: -5.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 14:05:25,482 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.30ms. Allocated memory is still 60.8MB. Free memory was 44.1MB in the beginning and 42.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:05:25,483 INFO L158 Benchmark]: Boogie Preprocessor took 39.65ms. Allocated memory is still 60.8MB. Free memory was 42.7MB in the beginning and 41.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:05:25,488 INFO L158 Benchmark]: RCFGBuilder took 339.86ms. Allocated memory is still 60.8MB. Free memory was 41.6MB in the beginning and 33.9MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:05:25,488 INFO L158 Benchmark]: TraceAbstraction took 869.32ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 33.3MB in the beginning and 39.5MB in the end (delta: -6.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-07-13 14:05:25,490 INFO L158 Benchmark]: Witness Printer took 46.24ms. Allocated memory is still 73.4MB. Free memory was 39.5MB in the beginning and 37.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:05:25,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 41.3MB in the beginning and 41.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.26ms. Allocated memory is still 60.8MB. Free memory was 38.6MB in the beginning and 44.1MB in the end (delta: -5.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.30ms. Allocated memory is still 60.8MB. Free memory was 44.1MB in the beginning and 42.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.65ms. Allocated memory is still 60.8MB. Free memory was 42.7MB in the beginning and 41.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 339.86ms. Allocated memory is still 60.8MB. Free memory was 41.6MB in the beginning and 33.9MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 869.32ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 33.3MB in the beginning and 39.5MB in the end (delta: -6.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Witness Printer took 46.24ms. Allocated memory is still 73.4MB. Free memory was 39.5MB in the beginning and 37.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, 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: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 21 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 5 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant [2022-07-13 14:05:25,502 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,502 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,502 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,502 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,504 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:05:25,504 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (result == ~fp.mul~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 13567505/21267647932558653966460912964485513216), ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5186565/4722366482869645213696))) && ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/713623846352979940529142984724747568191373312)) == target) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2022-07-13 14:05:25,531 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 Writing output log to file Ultimate.log Result: TRUE