./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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/float-newlib/float_req_bl_1122b.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 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 03:13:16,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 03:13:16,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 03:13:16,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 03:13:16,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 03:13:16,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 03:13:16,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 03:13:16,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 03:13:16,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 03:13:16,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 03:13:16,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 03:13:16,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 03:13:16,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 03:13:16,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 03:13:16,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 03:13:16,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 03:13:16,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 03:13:16,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 03:13:16,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 03:13:16,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 03:13:16,455 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 03:13:16,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 03:13:16,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 03:13:16,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 03:13:16,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 03:13:16,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 03:13:16,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 03:13:16,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 03:13:16,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 03:13:16,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 03:13:16,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 03:13:16,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 03:13:16,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 03:13:16,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 03:13:16,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 03:13:16,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 03:13:16,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 03:13:16,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 03:13:16,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 03:13:16,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 03:13:16,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 03:13:16,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 03:13:16,471 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 03:13:16,504 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 03:13:16,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 03:13:16,506 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 03:13:16,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 03:13:16,507 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 03:13:16,507 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 03:13:16,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 03:13:16,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 03:13:16,508 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 03:13:16,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 03:13:16,509 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 03:13:16,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 03:13:16,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 03:13:16,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 03:13:16,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 03:13:16,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 03:13:16,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 03:13:16,511 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 03:13:16,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 03:13:16,511 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 03:13:16,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 03:13:16,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 03:13:16,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 03:13:16,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 03:13:16,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 03:13:16,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 03:13:16,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 03:13:16,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 03:13:16,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 03:13:16,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 03:13:16,514 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 03:13:16,514 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 03:13:16,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 03:13:16,514 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc [2022-07-12 03:13:16,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 03:13:16,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 03:13:16,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 03:13:16,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 03:13:16,811 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 03:13:16,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2022-07-12 03:13:16,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad73d9a2/79e721b123bc45d2a55a4e671f503a69/FLAG4fc95a489 [2022-07-12 03:13:17,340 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 03:13:17,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2022-07-12 03:13:17,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad73d9a2/79e721b123bc45d2a55a4e671f503a69/FLAG4fc95a489 [2022-07-12 03:13:17,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad73d9a2/79e721b123bc45d2a55a4e671f503a69 [2022-07-12 03:13:17,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 03:13:17,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 03:13:17,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 03:13:17,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 03:13:17,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 03:13:17,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:13:17" (1/1) ... [2022-07-12 03:13:17,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a86268e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:17, skipping insertion in model container [2022-07-12 03:13:17,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:13:17" (1/1) ... [2022-07-12 03:13:17,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 03:13:17,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 03:13:18,207 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_1122b.c[2726,2739] [2022-07-12 03:13:18,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 03:13:18,240 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 03:13:18,296 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_1122b.c[2726,2739] [2022-07-12 03:13:18,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 03:13:18,311 INFO L208 MainTranslator]: Completed translation [2022-07-12 03:13:18,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:18 WrapperNode [2022-07-12 03:13:18,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 03:13:18,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 03:13:18,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 03:13:18,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 03:13:18,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:18" (1/1) ... [2022-07-12 03:13:18,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:18" (1/1) ... [2022-07-12 03:13:18,383 INFO L137 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 205 [2022-07-12 03:13:18,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 03:13:18,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 03:13:18,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 03:13:18,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 03:13:18,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:18" (1/1) ... [2022-07-12 03:13:18,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:18" (1/1) ... [2022-07-12 03:13:18,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:18" (1/1) ... [2022-07-12 03:13:18,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:18" (1/1) ... [2022-07-12 03:13:18,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:18" (1/1) ... [2022-07-12 03:13:18,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:18" (1/1) ... [2022-07-12 03:13:18,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:18" (1/1) ... [2022-07-12 03:13:18,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 03:13:18,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 03:13:18,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 03:13:18,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 03:13:18,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:18" (1/1) ... [2022-07-12 03:13:18,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 03:13:18,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 03:13:18,482 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) [2022-07-12 03:13:18,487 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 [2022-07-12 03:13:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 03:13:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 03:13:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 03:13:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 03:13:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-12 03:13:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-12 03:13:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 03:13:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 03:13:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 03:13:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-12 03:13:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 03:13:18,582 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 03:13:18,583 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 03:13:18,905 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 03:13:18,910 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 03:13:18,911 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-07-12 03:13:18,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:13:18 BoogieIcfgContainer [2022-07-12 03:13:18,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 03:13:18,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 03:13:18,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 03:13:18,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 03:13:18,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:13:17" (1/3) ... [2022-07-12 03:13:18,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ccbc00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:13:18, skipping insertion in model container [2022-07-12 03:13:18,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:18" (2/3) ... [2022-07-12 03:13:18,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ccbc00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:13:18, skipping insertion in model container [2022-07-12 03:13:18,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:13:18" (3/3) ... [2022-07-12 03:13:18,935 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2022-07-12 03:13:18,950 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 03:13:18,951 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 03:13:19,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 03:13:19,019 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@68322d8c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1f2be835 [2022-07-12 03:13:19,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 03:13:19,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 52 states have (on average 1.8076923076923077) internal successors, (94), 53 states have internal predecessors, (94), 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) [2022-07-12 03:13:19,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-12 03:13:19,030 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 03:13:19,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 03:13:19,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 03:13:19,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 03:13:19,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1366069876, now seen corresponding path program 1 times [2022-07-12 03:13:19,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 03:13:19,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15414847] [2022-07-12 03:13:19,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 03:13:19,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 03:13:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 03:13:19,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 03:13:19,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 03:13:19,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15414847] [2022-07-12 03:13:19,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15414847] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 03:13:19,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 03:13:19,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 03:13:19,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123010110] [2022-07-12 03:13:19,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 03:13:19,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 03:13:19,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 03:13:19,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 03:13:19,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 03:13:19,213 INFO L87 Difference]: Start difference. First operand has 54 states, 52 states have (on average 1.8076923076923077) internal successors, (94), 53 states have internal predecessors, (94), 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) [2022-07-12 03:13:19,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 03:13:19,233 INFO L93 Difference]: Finished difference Result 106 states and 186 transitions. [2022-07-12 03:13:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 03:13:19,235 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 [2022-07-12 03:13:19,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 03:13:19,241 INFO L225 Difference]: With dead ends: 106 [2022-07-12 03:13:19,242 INFO L226 Difference]: Without dead ends: 51 [2022-07-12 03:13:19,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 03:13:19,248 INFO L413 NwaCegarLoop]: 73 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, 73 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 [2022-07-12 03:13:19,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 03:13:19,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-12 03:13:19,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-12 03:13:19,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.4) internal successors, (70), 50 states have internal predecessors, (70), 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) [2022-07-12 03:13:19,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-07-12 03:13:19,294 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 11 [2022-07-12 03:13:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 03:13:19,294 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-07-12 03:13:19,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-07-12 03:13:19,295 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-07-12 03:13:19,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-12 03:13:19,296 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 03:13:19,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 03:13:19,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 03:13:19,297 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 03:13:19,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 03:13:19,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1947332695, now seen corresponding path program 1 times [2022-07-12 03:13:19,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 03:13:19,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532114424] [2022-07-12 03:13:19,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 03:13:19,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 03:13:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 03:13:19,397 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 03:13:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 03:13:19,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 03:13:19,493 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 03:13:19,496 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 03:13:19,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 03:13:19,504 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 03:13:19,507 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 03:13:19,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 03:13:19 BoogieIcfgContainer [2022-07-12 03:13:19,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 03:13:19,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 03:13:19,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 03:13:19,548 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 03:13:19,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:13:18" (3/4) ... [2022-07-12 03:13:19,551 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 03:13:19,552 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 03:13:19,553 INFO L158 Benchmark]: Toolchain (without parser) took 1858.53ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 47.0MB in the beginning and 50.4MB in the end (delta: -3.3MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2022-07-12 03:13:19,554 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 81.8MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 03:13:19,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 622.07ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 46.8MB in the beginning and 76.1MB in the end (delta: -29.3MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-07-12 03:13:19,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.58ms. Allocated memory is still 102.8MB. Free memory was 76.1MB in the beginning and 73.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 03:13:19,560 INFO L158 Benchmark]: Boogie Preprocessor took 56.08ms. Allocated memory is still 102.8MB. Free memory was 73.6MB in the beginning and 71.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 03:13:19,569 INFO L158 Benchmark]: RCFGBuilder took 471.13ms. Allocated memory is still 102.8MB. Free memory was 71.5MB in the beginning and 55.2MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-12 03:13:19,570 INFO L158 Benchmark]: TraceAbstraction took 617.97ms. Allocated memory is still 102.8MB. Free memory was 79.3MB in the beginning and 50.7MB in the end (delta: 28.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-07-12 03:13:19,571 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 102.8MB. Free memory was 50.7MB in the beginning and 50.4MB in the end (delta: 375.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 03:13:19,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 81.8MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 622.07ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 46.8MB in the beginning and 76.1MB in the end (delta: -29.3MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.58ms. Allocated memory is still 102.8MB. Free memory was 76.1MB in the beginning and 73.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.08ms. Allocated memory is still 102.8MB. Free memory was 73.6MB in the beginning and 71.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 471.13ms. Allocated memory is still 102.8MB. Free memory was 71.5MB in the beginning and 55.2MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 617.97ms. Allocated memory is still 102.8MB. Free memory was 79.3MB in the beginning and 50.7MB in the end (delta: 28.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 102.8MB. Free memory was 50.7MB in the beginning and 50.4MB in the end (delta: 375.0kB). 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: 125]: 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 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 34, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXOr at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={4:0}] [L119] float x = -1.0f / 0.0f; [L120] float y = __VERIFIER_nondet_float(); [L121] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=4294967299, \old(y)=4294967297, one_fmod=1, x=4294967299, y=4294967297, Zero_fmod={4:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 VAL [\old(x)=4294967299, \old(y)=4294967297, hx=0, hy=-1, one_fmod=1, sx=0, x=4294967299, y=4294967297, Zero_fmod={4:0}] [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=4294967299, \old(y)=4294967297, hx=0, hy=0, one_fmod=1, sx=0, x=4294967299, y=4294967297, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=4294967299, \old(y)=4294967297, hx=0, hy=0, one_fmod=1, sx=0, x=4294967299, y=4294967297, Zero_fmod={4:0}] [L121] RET, EXPR fmod_float(x, y) [L121] float res = fmod_float(x, y); [L124] CALL, EXPR isnan_float(res) [L110] return x != x; VAL [\old(x)=4294967298, \result=0, one_fmod=1, x=4294967298, Zero_fmod={4:0}] [L124] RET, EXPR isnan_float(res) [L124] COND TRUE !isnan_float(res) [L125] reach_error() VAL [one_fmod=1, res=4294967298, x=4294967299, y=4294967297, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 73 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, 73 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=54occurred 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, 0.0s 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 [2022-07-12 03:13:19,610 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/float-newlib/float_req_bl_1122b.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 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 03:13:21,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 03:13:21,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 03:13:21,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 03:13:21,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 03:13:21,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 03:13:21,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 03:13:21,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 03:13:21,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 03:13:21,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 03:13:21,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 03:13:21,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 03:13:21,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 03:13:21,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 03:13:21,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 03:13:21,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 03:13:21,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 03:13:21,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 03:13:21,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 03:13:21,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 03:13:21,786 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 03:13:21,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 03:13:21,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 03:13:21,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 03:13:21,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 03:13:21,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 03:13:21,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 03:13:21,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 03:13:21,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 03:13:21,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 03:13:21,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 03:13:21,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 03:13:21,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 03:13:21,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 03:13:21,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 03:13:21,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 03:13:21,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 03:13:21,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 03:13:21,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 03:13:21,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 03:13:21,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 03:13:21,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 03:13:21,822 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 03:13:21,859 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 03:13:21,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 03:13:21,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 03:13:21,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 03:13:21,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 03:13:21,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 03:13:21,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 03:13:21,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 03:13:21,862 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 03:13:21,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 03:13:21,863 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 03:13:21,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 03:13:21,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 03:13:21,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 03:13:21,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 03:13:21,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 03:13:21,864 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 03:13:21,865 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 03:13:21,865 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 03:13:21,865 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 03:13:21,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 03:13:21,865 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 03:13:21,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 03:13:21,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 03:13:21,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 03:13:21,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 03:13:21,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 03:13:21,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 03:13:21,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 03:13:21,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 03:13:21,867 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 03:13:21,867 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 03:13:21,868 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 03:13:21,868 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 03:13:21,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 03:13:21,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 03:13:21,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc [2022-07-12 03:13:22,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 03:13:22,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 03:13:22,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 03:13:22,407 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 03:13:22,407 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 03:13:22,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2022-07-12 03:13:22,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022762f01/1ad75530e83e4e11884de0924f32a6f7/FLAG7cbbe08c3 [2022-07-12 03:13:23,168 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 03:13:23,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2022-07-12 03:13:23,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022762f01/1ad75530e83e4e11884de0924f32a6f7/FLAG7cbbe08c3 [2022-07-12 03:13:23,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022762f01/1ad75530e83e4e11884de0924f32a6f7 [2022-07-12 03:13:23,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 03:13:23,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 03:13:23,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 03:13:23,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 03:13:23,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 03:13:23,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:13:23" (1/1) ... [2022-07-12 03:13:23,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e3659c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:23, skipping insertion in model container [2022-07-12 03:13:23,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:13:23" (1/1) ... [2022-07-12 03:13:23,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 03:13:23,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 03:13:23,847 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_1122b.c[2726,2739] [2022-07-12 03:13:23,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 03:13:23,904 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 03:13:23,956 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_1122b.c[2726,2739] [2022-07-12 03:13:23,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 03:13:23,990 INFO L208 MainTranslator]: Completed translation [2022-07-12 03:13:23,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:23 WrapperNode [2022-07-12 03:13:23,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 03:13:23,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 03:13:23,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 03:13:23,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 03:13:23,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:23" (1/1) ... [2022-07-12 03:13:24,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:23" (1/1) ... [2022-07-12 03:13:24,053 INFO L137 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 169 [2022-07-12 03:13:24,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 03:13:24,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 03:13:24,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 03:13:24,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 03:13:24,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:23" (1/1) ... [2022-07-12 03:13:24,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:23" (1/1) ... [2022-07-12 03:13:24,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:23" (1/1) ... [2022-07-12 03:13:24,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:23" (1/1) ... [2022-07-12 03:13:24,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:23" (1/1) ... [2022-07-12 03:13:24,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:23" (1/1) ... [2022-07-12 03:13:24,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:23" (1/1) ... [2022-07-12 03:13:24,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 03:13:24,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 03:13:24,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 03:13:24,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 03:13:24,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:23" (1/1) ... [2022-07-12 03:13:24,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 03:13:24,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 03:13:24,160 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) [2022-07-12 03:13:24,188 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 [2022-07-12 03:13:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 03:13:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-07-12 03:13:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 03:13:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 03:13:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-12 03:13:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 03:13:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 03:13:24,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 03:13:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-12 03:13:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 03:13:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 03:13:24,295 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 03:13:24,297 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 03:13:26,869 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 03:13:26,874 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 03:13:26,875 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-07-12 03:13:26,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:13:26 BoogieIcfgContainer [2022-07-12 03:13:26,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 03:13:26,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 03:13:26,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 03:13:26,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 03:13:26,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:13:23" (1/3) ... [2022-07-12 03:13:26,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@feb1ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:13:26, skipping insertion in model container [2022-07-12 03:13:26,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:13:23" (2/3) ... [2022-07-12 03:13:26,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@feb1ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:13:26, skipping insertion in model container [2022-07-12 03:13:26,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:13:26" (3/3) ... [2022-07-12 03:13:26,896 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2022-07-12 03:13:26,913 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 03:13:26,916 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 03:13:26,971 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 03:13:26,978 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@4a6b3d99, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@13ebf342 [2022-07-12 03:13:26,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 03:13:26,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 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) [2022-07-12 03:13:26,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-12 03:13:26,990 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 03:13:26,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 03:13:26,991 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 03:13:26,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 03:13:26,995 INFO L85 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2022-07-12 03:13:27,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 03:13:27,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813251123] [2022-07-12 03:13:27,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 03:13:27,011 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 03:13:27,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 03:13:27,013 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) [2022-07-12 03:13:27,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 03:13:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 03:13:27,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 03:13:27,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 03:13:27,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 03:13:27,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 03:13:27,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 03:13:27,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813251123] [2022-07-12 03:13:27,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813251123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 03:13:27,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 03:13:27,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 03:13:27,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517987242] [2022-07-12 03:13:27,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 03:13:27,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 03:13:27,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 03:13:27,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 03:13:27,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 03:13:27,390 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-07-12 03:13:27,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 03:13:27,412 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2022-07-12 03:13:27,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 03:13:27,414 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-07-12 03:13:27,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 03:13:27,421 INFO L225 Difference]: With dead ends: 82 [2022-07-12 03:13:27,421 INFO L226 Difference]: Without dead ends: 39 [2022-07-12 03:13:27,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 03:13:27,429 INFO L413 NwaCegarLoop]: 57 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, 57 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 [2022-07-12 03:13:27,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 03:13:27,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-12 03:13:27,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-07-12 03:13:27,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 states have internal predecessors, (54), 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) [2022-07-12 03:13:27,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2022-07-12 03:13:27,519 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2022-07-12 03:13:27,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 03:13:27,519 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2022-07-12 03:13:27,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-07-12 03:13:27,520 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2022-07-12 03:13:27,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-12 03:13:27,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 03:13:27,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 03:13:27,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 03:13:27,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 03:13:27,736 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 03:13:27,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 03:13:27,736 INFO L85 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2022-07-12 03:13:27,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 03:13:27,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310575181] [2022-07-12 03:13:27,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 03:13:27,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 03:13:27,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 03:13:27,743 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) [2022-07-12 03:13:27,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 03:13:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 03:13:28,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 03:13:28,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 03:13:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 03:13:31,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 03:13:31,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 03:13:31,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310575181] [2022-07-12 03:13:31,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310575181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 03:13:31,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 03:13:31,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 03:13:31,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002968009] [2022-07-12 03:13:31,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 03:13:31,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 03:13:31,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 03:13:31,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 03:13:31,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 03:13:31,045 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-07-12 03:13:33,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 03:13:33,716 INFO L93 Difference]: Finished difference Result 45 states and 59 transitions. [2022-07-12 03:13:33,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 03:13:33,717 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2022-07-12 03:13:33,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 03:13:33,718 INFO L225 Difference]: With dead ends: 45 [2022-07-12 03:13:33,718 INFO L226 Difference]: Without dead ends: 40 [2022-07-12 03:13:33,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-12 03:13:33,720 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 87 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 03:13:33,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 187 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 10 Unchecked, 1.1s Time] [2022-07-12 03:13:33,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-07-12 03:13:33,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2022-07-12 03:13:33,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 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) [2022-07-12 03:13:33,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2022-07-12 03:13:33,726 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2022-07-12 03:13:33,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 03:13:33,726 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2022-07-12 03:13:33,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-07-12 03:13:33,727 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2022-07-12 03:13:33,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-12 03:13:33,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 03:13:33,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 03:13:33,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-12 03:13:33,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 03:13:33,929 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 03:13:33,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 03:13:33,930 INFO L85 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2022-07-12 03:13:33,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 03:13:33,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218500910] [2022-07-12 03:13:33,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 03:13:33,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 03:13:33,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 03:13:33,932 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 03:13:33,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 03:13:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 03:13:34,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 03:13:34,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 03:13:34,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 03:13:34,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 03:13:34,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 03:13:34,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218500910] [2022-07-12 03:13:34,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218500910] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 03:13:34,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 03:13:34,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 03:13:34,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343101730] [2022-07-12 03:13:34,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 03:13:34,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 03:13:34,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 03:13:34,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 03:13:34,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 03:13:34,248 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2022-07-12 03:13:34,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 03:13:34,250 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2022-07-12 03:13:34,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 03:13:34,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 [2022-07-12 03:13:34,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 03:13:34,251 INFO L225 Difference]: With dead ends: 39 [2022-07-12 03:13:34,251 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 03:13:34,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 03:13:34,253 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 03:13:34,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-07-12 03:13:34,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 03:13:34,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 03:13:34,255 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) [2022-07-12 03:13:34,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 03:13:34,255 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-07-12 03:13:34,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 03:13:34,255 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 03:13:34,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2022-07-12 03:13:34,256 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 03:13:34,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 03:13:34,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 03:13:34,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-12 03:13:34,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 03:13:34,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 03:13:35,563 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2022-07-12 03:13:35,563 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2022-07-12 03:13:35,563 INFO L899 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2022-07-12 03:13:35,563 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2022-07-12 03:13:35,563 INFO L895 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|) [2022-07-12 03:13:35,563 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2022-07-12 03:13:35,564 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2022-07-12 03:13:35,564 INFO L895 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2022-07-12 03:13:35,564 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 03:13:35,564 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 03:13:35,564 INFO L899 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2022-07-12 03:13:35,564 INFO L899 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2022-07-12 03:13:35,564 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2022-07-12 03:13:35,564 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2022-07-12 03:13:35,564 INFO L902 garLoopResultBuilder]: At program point L129(lines 112 130) the Hoare annotation is: true [2022-07-12 03:13:35,564 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2022-07-12 03:13:35,564 INFO L899 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2022-07-12 03:13:35,565 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_fmod_float_~x#1|)) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-12 03:13:35,565 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2022-07-12 03:13:35,565 INFO L899 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2022-07-12 03:13:35,565 INFO L895 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_fmod_float_~x#1|) (= currentRoundingMode roundNearestTiesToEven) (exists ((|ULTIMATE.start_fmod_float_~y#1| (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) |ULTIMATE.start_fmod_float_~y#1|))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res#1|))) [2022-07-12 03:13:35,565 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2022-07-12 03:13:35,565 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 03:13:35,565 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2022-07-12 03:13:35,565 INFO L895 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2022-07-12 03:13:35,566 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2022-07-12 03:13:35,566 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2022-07-12 03:13:35,566 INFO L895 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2022-07-12 03:13:35,566 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2022-07-12 03:13:35,566 INFO L895 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2022-07-12 03:13:35,566 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 03:13:35,566 INFO L899 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2022-07-12 03:13:35,566 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 127) no Hoare annotation was computed. [2022-07-12 03:13:35,566 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2022-07-12 03:13:35,566 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2022-07-12 03:13:35,566 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2022-07-12 03:13:35,567 INFO L899 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2022-07-12 03:13:35,567 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-07-12 03:13:35,567 INFO L895 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2022-07-12 03:13:35,567 INFO L899 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2022-07-12 03:13:35,567 INFO L899 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2022-07-12 03:13:35,567 INFO L895 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2022-07-12 03:13:35,571 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-12 03:13:35,573 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 03:13:35,588 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-12 03:13:35,589 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-12 03:13:35,590 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,593 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-12 03:13:35,593 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-12 03:13:35,593 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,596 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,596 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,599 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,600 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,600 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2022-07-12 03:13:35,600 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,601 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,602 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,602 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2022-07-12 03:13:35,612 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,616 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,616 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,617 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,617 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,617 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2022-07-12 03:13:35,617 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,617 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,631 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2022-07-12 03:13:35,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 03:13:35 BoogieIcfgContainer [2022-07-12 03:13:35,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 03:13:35,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 03:13:35,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 03:13:35,634 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 03:13:35,635 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:13:26" (3/4) ... [2022-07-12 03:13:35,638 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 03:13:35,661 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-07-12 03:13:35,661 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-12 03:13:35,662 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 03:13:35,662 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 03:13:35,683 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-12 03:13:35,690 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 03:13:35,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 03:13:35,691 INFO L158 Benchmark]: Toolchain (without parser) took 12103.40ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 49.5MB in the beginning and 62.6MB in the end (delta: -13.2MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2022-07-12 03:13:35,691 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 69.2MB. Free memory was 50.0MB in the beginning and 49.9MB in the end (delta: 32.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 03:13:35,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.98ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 49.6MB in the end (delta: -384.2kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-12 03:13:35,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.54ms. Allocated memory is still 69.2MB. Free memory was 49.6MB in the beginning and 47.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 03:13:35,692 INFO L158 Benchmark]: Boogie Preprocessor took 63.61ms. Allocated memory is still 69.2MB. Free memory was 47.5MB in the beginning and 45.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 03:13:35,693 INFO L158 Benchmark]: RCFGBuilder took 2765.47ms. Allocated memory is still 69.2MB. Free memory was 45.7MB in the beginning and 50.8MB in the end (delta: -5.1MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-07-12 03:13:35,693 INFO L158 Benchmark]: TraceAbstraction took 8745.09ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 50.5MB in the beginning and 36.0MB in the end (delta: 14.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-07-12 03:13:35,694 INFO L158 Benchmark]: Witness Printer took 56.70ms. Allocated memory is still 83.9MB. Free memory was 36.0MB in the beginning and 62.6MB in the end (delta: -26.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 03:13:35,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 69.2MB. Free memory was 50.0MB in the beginning and 49.9MB in the end (delta: 32.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.98ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 49.6MB in the end (delta: -384.2kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.54ms. Allocated memory is still 69.2MB. Free memory was 49.6MB in the beginning and 47.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.61ms. Allocated memory is still 69.2MB. Free memory was 47.5MB in the beginning and 45.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2765.47ms. Allocated memory is still 69.2MB. Free memory was 45.7MB in the beginning and 50.8MB in the end (delta: -5.1MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8745.09ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 50.5MB in the beginning and 36.0MB in the end (delta: 14.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 56.70ms. Allocated memory is still 83.9MB. Free memory was 36.0MB in the beginning and 62.6MB in the end (delta: -26.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] * 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: 125]: 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, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 258 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 14 IncrementalHoareTripleChecker+Unchecked, 149 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 109 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 62 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 7 QuantifiedInterpolants, 226 SizeOfPredicates, 17 NumberOfNonLiveVariables, 180 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 110]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2022-07-12 03:13:35,720 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-12 03:13:35,721 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-12 03:13:35,721 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,721 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-12 03:13:35,722 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-12 03:13:35,724 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2022-07-12 03:13:35,726 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,726 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,726 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,726 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,726 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,726 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2022-07-12 03:13:35,727 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,727 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,727 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2022-07-12 03:13:35,728 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,728 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,729 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,729 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,729 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,729 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2022-07-12 03:13:35,729 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,729 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,729 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:35,730 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] Derived loop invariant: (~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_fmod_float_~y#1 : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y#1), ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y#1)) == \result) RESULT: Ultimate proved your program to be correct! [2022-07-12 03:13:35,852 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