./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0670.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_0670.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 ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:16:20,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:16:20,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:16:20,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:16:20,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:16:20,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:16:20,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:16:20,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:16:20,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:16:20,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:16:20,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:16:20,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:16:20,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:16:20,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:16:20,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:16:20,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:16:20,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:16:20,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:16:20,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:16:20,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:16:20,409 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:16:20,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:16:20,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:16:20,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:16:20,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:16:20,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:16:20,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:16:20,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:16:20,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:16:20,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:16:20,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:16:20,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:16:20,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:16:20,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:16:20,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:16:20,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:16:20,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:16:20,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:16:20,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:16:20,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:16:20,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:16:20,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:16:20,424 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 14:16:20,449 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:16:20,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:16:20,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:16:20,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:16:20,450 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:16:20,450 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:16:20,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:16:20,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:16:20,451 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:16:20,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:16:20,452 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:16:20,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 14:16:20,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:16:20,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:16:20,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:16:20,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:16:20,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:16:20,453 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:16:20,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:16:20,453 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:16:20,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:16:20,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:16:20,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:16:20,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:16:20,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:16:20,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:16:20,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:16:20,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:16:20,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 14:16:20,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 14:16:20,455 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:16:20,455 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:16:20,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:16:20,455 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 [2022-07-19 14:16:20,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:16:20,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:16:20,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:16:20,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:16:20,659 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:16:20,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2022-07-19 14:16:20,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35d0bb00/a1ec53950bc149fd8945e723d09c63b0/FLAGa417a8998 [2022-07-19 14:16:21,093 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:16:21,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2022-07-19 14:16:21,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35d0bb00/a1ec53950bc149fd8945e723d09c63b0/FLAGa417a8998 [2022-07-19 14:16:21,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35d0bb00/a1ec53950bc149fd8945e723d09c63b0 [2022-07-19 14:16:21,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:16:21,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:16:21,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:16:21,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:16:21,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:16:21,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:16:21" (1/1) ... [2022-07-19 14:16:21,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e64f780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:21, skipping insertion in model container [2022-07-19 14:16:21,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:16:21" (1/1) ... [2022-07-19 14:16:21,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:16:21,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:16:21,356 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_0670.c[5373,5386] [2022-07-19 14:16:21,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:16:21,367 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:16:21,406 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_0670.c[5373,5386] [2022-07-19 14:16:21,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:16:21,436 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:16:21,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:21 WrapperNode [2022-07-19 14:16:21,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:16:21,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:16:21,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:16:21,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:16:21,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:21" (1/1) ... [2022-07-19 14:16:21,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:21" (1/1) ... [2022-07-19 14:16:21,498 INFO L137 Inliner]: procedures = 20, calls = 82, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 272 [2022-07-19 14:16:21,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:16:21,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:16:21,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:16:21,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:16:21,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:21" (1/1) ... [2022-07-19 14:16:21,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:21" (1/1) ... [2022-07-19 14:16:21,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:21" (1/1) ... [2022-07-19 14:16:21,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:21" (1/1) ... [2022-07-19 14:16:21,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:21" (1/1) ... [2022-07-19 14:16:21,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:21" (1/1) ... [2022-07-19 14:16:21,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:21" (1/1) ... [2022-07-19 14:16:21,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:16:21,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:16:21,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:16:21,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:16:21,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:21" (1/1) ... [2022-07-19 14:16:21,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:16:21,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:16:21,600 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) [2022-07-19 14:16:21,618 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 [2022-07-19 14:16:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:16:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 14:16:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 14:16:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-19 14:16:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 14:16:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2022-07-19 14:16:21,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2022-07-19 14:16:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-19 14:16:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-07-19 14:16:21,634 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-07-19 14:16:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:16:21,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:16:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 14:16:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-19 14:16:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2022-07-19 14:16:21,634 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2022-07-19 14:16:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:16:21,718 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:16:21,720 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:16:22,047 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:16:22,052 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:16:22,053 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-07-19 14:16:22,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:16:22 BoogieIcfgContainer [2022-07-19 14:16:22,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:16:22,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:16:22,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:16:22,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:16:22,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:16:21" (1/3) ... [2022-07-19 14:16:22,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285a22ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:16:22, skipping insertion in model container [2022-07-19 14:16:22,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:21" (2/3) ... [2022-07-19 14:16:22,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285a22ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:16:22, skipping insertion in model container [2022-07-19 14:16:22,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:16:22" (3/3) ... [2022-07-19 14:16:22,070 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2022-07-19 14:16:22,080 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:16:22,080 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:16:22,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:16:22,162 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@6626ca8d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4d4a0e70 [2022-07-19 14:16:22,166 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:16:22,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 103 states have (on average 1.6990291262135921) internal successors, (175), 104 states have internal predecessors, (175), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-19 14:16:22,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-19 14:16:22,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:16:22,178 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:16:22,179 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:16:22,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:16:22,183 INFO L85 PathProgramCache]: Analyzing trace with hash -40193531, now seen corresponding path program 1 times [2022-07-19 14:16:22,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:16:22,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551098423] [2022-07-19 14:16:22,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:16:22,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:16:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:16:22,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 14:16:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:16:22,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 14:16:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:16:22,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 14:16:22,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:16:22,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551098423] [2022-07-19 14:16:22,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551098423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:16:22,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:16:22,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:16:22,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377197113] [2022-07-19 14:16:22,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:16:22,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:16:22,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:16:22,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:16:22,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:16:22,396 INFO L87 Difference]: Start difference. First operand has 115 states, 103 states have (on average 1.6990291262135921) internal successors, (175), 104 states have internal predecessors, (175), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 14:16:22,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:16:22,434 INFO L93 Difference]: Finished difference Result 222 states and 370 transitions. [2022-07-19 14:16:22,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:16:22,436 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-07-19 14:16:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:16:22,442 INFO L225 Difference]: With dead ends: 222 [2022-07-19 14:16:22,442 INFO L226 Difference]: Without dead ends: 111 [2022-07-19 14:16:22,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:16:22,448 INFO L413 NwaCegarLoop]: 168 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, 168 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 [2022-07-19 14:16:22,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:16:22,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-07-19 14:16:22,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-07-19 14:16:22,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 100 states have (on average 1.49) internal successors, (149), 100 states have internal predecessors, (149), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-19 14:16:22,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2022-07-19 14:16:22,496 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 163 transitions. Word has length 22 [2022-07-19 14:16:22,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:16:22,498 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 163 transitions. [2022-07-19 14:16:22,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 14:16:22,499 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 163 transitions. [2022-07-19 14:16:22,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-19 14:16:22,502 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:16:22,502 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:16:22,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 14:16:22,502 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:16:22,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:16:22,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1680535149, now seen corresponding path program 1 times [2022-07-19 14:16:22,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:16:22,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243412881] [2022-07-19 14:16:22,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:16:22,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:16:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:16:22,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 14:16:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:16:22,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 14:16:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:16:22,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 14:16:22,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:16:22,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243412881] [2022-07-19 14:16:22,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243412881] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:16:22,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:16:22,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:16:22,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868642510] [2022-07-19 14:16:22,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:16:22,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 14:16:22,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:16:22,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 14:16:22,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:16:22,652 INFO L87 Difference]: Start difference. First operand 111 states and 163 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 14:16:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:16:22,719 INFO L93 Difference]: Finished difference Result 233 states and 343 transitions. [2022-07-19 14:16:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 14:16:22,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-07-19 14:16:22,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:16:22,723 INFO L225 Difference]: With dead ends: 233 [2022-07-19 14:16:22,723 INFO L226 Difference]: Without dead ends: 157 [2022-07-19 14:16:22,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:16:22,726 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 86 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:16:22,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 341 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:16:22,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-07-19 14:16:22,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 138. [2022-07-19 14:16:22,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 127 states have (on average 1.5275590551181102) internal successors, (194), 127 states have internal predecessors, (194), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-19 14:16:22,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 208 transitions. [2022-07-19 14:16:22,741 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 208 transitions. Word has length 24 [2022-07-19 14:16:22,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:16:22,742 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 208 transitions. [2022-07-19 14:16:22,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 14:16:22,743 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 208 transitions. [2022-07-19 14:16:22,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-19 14:16:22,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:16:22,747 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:16:22,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 14:16:22,748 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:16:22,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:16:22,748 INFO L85 PathProgramCache]: Analyzing trace with hash -943081483, now seen corresponding path program 1 times [2022-07-19 14:16:22,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:16:22,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638258517] [2022-07-19 14:16:22,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:16:22,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:16:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:16:22,801 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 14:16:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:16:22,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 14:16:22,888 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 14:16:22,889 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:16:22,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 14:16:22,893 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-19 14:16:22,895 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:16:22,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:16:22 BoogieIcfgContainer [2022-07-19 14:16:22,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:16:22,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:16:22,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:16:22,924 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:16:22,924 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:16:22" (3/4) ... [2022-07-19 14:16:22,928 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 14:16:22,928 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:16:22,928 INFO L158 Benchmark]: Toolchain (without parser) took 1812.65ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 59.5MB in the beginning and 76.7MB in the end (delta: -17.3MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2022-07-19 14:16:22,929 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 90.2MB. Free memory was 46.3MB in the beginning and 46.3MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:16:22,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.52ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 59.2MB in the beginning and 83.4MB in the end (delta: -24.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 14:16:22,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.12ms. Allocated memory is still 111.1MB. Free memory was 83.4MB in the beginning and 80.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:16:22,931 INFO L158 Benchmark]: Boogie Preprocessor took 61.77ms. Allocated memory is still 111.1MB. Free memory was 80.8MB in the beginning and 78.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 14:16:22,931 INFO L158 Benchmark]: RCFGBuilder took 490.78ms. Allocated memory is still 111.1MB. Free memory was 78.1MB in the beginning and 54.0MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-19 14:16:22,932 INFO L158 Benchmark]: TraceAbstraction took 868.03ms. Allocated memory is still 111.1MB. Free memory was 53.5MB in the beginning and 76.7MB in the end (delta: -23.2MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-07-19 14:16:22,932 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 111.1MB. Free memory is still 76.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:16:22,933 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 90.2MB. Free memory was 46.3MB in the beginning and 46.3MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.52ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 59.2MB in the beginning and 83.4MB in the end (delta: -24.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.12ms. Allocated memory is still 111.1MB. Free memory was 83.4MB in the beginning and 80.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.77ms. Allocated memory is still 111.1MB. Free memory was 80.8MB in the beginning and 78.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 490.78ms. Allocated memory is still 111.1MB. Free memory was 78.1MB in the beginning and 54.0MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 868.03ms. Allocated memory is still 111.1MB. Free memory was 53.5MB in the beginning and 76.7MB in the end (delta: -23.2MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 111.1MB. Free memory is still 76.7MB. 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: 236]: 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 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 140. Possible FailurePath: [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L52-L54] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L120-L121] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L226] float x = __VERIFIER_nondet_float(); [L227] float y = __VERIFIER_nondet_float(); [L229] CALL, EXPR isnan_float(x) VAL [\old(x)=1000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L15] return x != x; VAL [\old(x)=1000000000000000000000000000003, \result=1, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, zero_atan2=0] [L229] RET, EXPR isnan_float(x) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(x)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, zero_atan2=0] [L229] isnan_float(x) || isnan_float(y) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(x)=1, isnan_float(x) || isnan_float(y)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, zero_atan2=0] [L229] COND TRUE isnan_float(x) || isnan_float(y) [L232] CALL, EXPR __ieee754_atan2f(y, x) [L124] float z; [L125] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] [L128] ieee_float_shape_type gf_u; [L129] gf_u.value = (x) [L130] EXPR gf_u.word [L130] (hx) = gf_u.word [L132] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, ix=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] [L134] ieee_float_shape_type gf_u; [L135] gf_u.value = (y) [L136] EXPR gf_u.word [L136] (hy) = gf_u.word [L138] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, hy=2147483647, ix=0, iy=2147483646, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] [L139] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L140] return x + y; VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, hy=2147483647, ix=0, iy=2147483646, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] [L232] RET, EXPR __ieee754_atan2f(y, x) [L232] float res = __ieee754_atan2f(y, x); [L235] CALL, EXPR isnan_float(res) VAL [\old(x)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L15] return x != x; VAL [\old(x)=1000000000000000000000000000002, \result=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000002, zero_atan2=0] [L235] RET, EXPR isnan_float(res) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(res)=0, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] [L235] COND TRUE !isnan_float(res) [L236] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 90 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 509 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 173 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 336 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 19 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 6/6 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 [2022-07-19 14:16:22,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_0670.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 ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:16:24,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:16:24,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:16:24,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:16:24,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:16:24,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:16:24,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:16:24,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:16:24,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:16:24,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:16:24,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:16:24,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:16:24,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:16:24,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:16:24,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:16:24,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:16:24,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:16:24,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:16:24,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:16:24,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:16:24,678 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:16:24,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:16:24,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:16:24,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:16:24,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:16:24,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:16:24,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:16:24,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:16:24,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:16:24,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:16:24,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:16:24,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:16:24,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:16:24,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:16:24,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:16:24,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:16:24,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:16:24,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:16:24,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:16:24,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:16:24,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:16:24,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:16:24,697 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 14:16:24,713 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:16:24,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:16:24,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:16:24,713 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:16:24,714 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:16:24,714 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:16:24,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:16:24,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:16:24,715 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:16:24,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:16:24,715 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:16:24,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:16:24,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:16:24,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:16:24,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:16:24,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:16:24,716 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 14:16:24,716 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 14:16:24,716 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 14:16:24,717 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:16:24,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:16:24,717 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:16:24,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:16:24,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:16:24,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:16:24,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:16:24,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:16:24,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:16:24,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:16:24,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:16:24,718 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 14:16:24,718 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 14:16:24,718 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:16:24,719 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:16:24,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:16:24,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 14:16:24,722 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 [2022-07-19 14:16:24,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:16:24,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:16:25,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:16:25,001 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:16:25,002 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:16:25,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2022-07-19 14:16:25,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb06c087d/bc3ae0e8ff3741ffbf32efd82dcddfe7/FLAGde1629ac1 [2022-07-19 14:16:25,507 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:16:25,507 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2022-07-19 14:16:25,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb06c087d/bc3ae0e8ff3741ffbf32efd82dcddfe7/FLAGde1629ac1 [2022-07-19 14:16:25,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb06c087d/bc3ae0e8ff3741ffbf32efd82dcddfe7 [2022-07-19 14:16:25,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:16:25,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:16:25,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:16:25,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:16:25,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:16:25,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:16:25" (1/1) ... [2022-07-19 14:16:25,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d390cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:25, skipping insertion in model container [2022-07-19 14:16:25,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:16:25" (1/1) ... [2022-07-19 14:16:25,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:16:25,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:16:25,776 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_0670.c[5373,5386] [2022-07-19 14:16:25,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:16:25,795 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:16:25,837 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_0670.c[5373,5386] [2022-07-19 14:16:25,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:16:25,867 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:16:25,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:25 WrapperNode [2022-07-19 14:16:25,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:16:25,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:16:25,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:16:25,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:16:25,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:25" (1/1) ... [2022-07-19 14:16:25,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:25" (1/1) ... [2022-07-19 14:16:25,934 INFO L137 Inliner]: procedures = 23, calls = 82, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 234 [2022-07-19 14:16:25,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:16:25,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:16:25,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:16:25,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:16:25,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:25" (1/1) ... [2022-07-19 14:16:25,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:25" (1/1) ... [2022-07-19 14:16:25,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:25" (1/1) ... [2022-07-19 14:16:25,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:25" (1/1) ... [2022-07-19 14:16:25,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:25" (1/1) ... [2022-07-19 14:16:25,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:25" (1/1) ... [2022-07-19 14:16:25,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:25" (1/1) ... [2022-07-19 14:16:25,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:16:25,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:16:25,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:16:25,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:16:25,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:25" (1/1) ... [2022-07-19 14:16:25,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:16:25,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:16:26,025 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) [2022-07-19 14:16:26,068 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 [2022-07-19 14:16:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:16:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-07-19 14:16:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 14:16:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 14:16:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-19 14:16:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2022-07-19 14:16:26,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2022-07-19 14:16:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-07-19 14:16:26,086 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-07-19 14:16:26,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 14:16:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:16:26,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:16:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-19 14:16:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2022-07-19 14:16:26,087 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2022-07-19 14:16:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 14:16:26,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:16:26,187 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:16:26,189 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:16:37,249 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:16:37,254 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:16:37,255 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-07-19 14:16:37,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:16:37 BoogieIcfgContainer [2022-07-19 14:16:37,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:16:37,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:16:37,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:16:37,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:16:37,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:16:25" (1/3) ... [2022-07-19 14:16:37,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcf3a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:16:37, skipping insertion in model container [2022-07-19 14:16:37,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:16:25" (2/3) ... [2022-07-19 14:16:37,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcf3a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:16:37, skipping insertion in model container [2022-07-19 14:16:37,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:16:37" (3/3) ... [2022-07-19 14:16:37,265 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2022-07-19 14:16:37,277 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:16:37,279 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:16:37,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:16:37,325 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@61b5f2d5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@f5fdb97 [2022-07-19 14:16:37,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:16:37,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 89 states have (on average 1.6292134831460674) internal successors, (145), 90 states have internal predecessors, (145), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-19 14:16:37,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-19 14:16:37,343 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:16:37,343 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:16:37,344 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:16:37,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:16:37,350 INFO L85 PathProgramCache]: Analyzing trace with hash 187834432, now seen corresponding path program 1 times [2022-07-19 14:16:37,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:16:37,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384767798] [2022-07-19 14:16:37,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:16:37,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:16:37,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:16:37,366 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) [2022-07-19 14:16:37,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 14:16:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:16:38,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 14:16:38,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:16:38,144 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:16:38,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:16:38,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:16:38,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384767798] [2022-07-19 14:16:38,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [384767798] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:16:38,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:16:38,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:16:38,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749706024] [2022-07-19 14:16:38,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:16:38,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:16:38,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:16:38,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:16:38,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:16:38,198 INFO L87 Difference]: Start difference. First operand has 101 states, 89 states have (on average 1.6292134831460674) internal successors, (145), 90 states have internal predecessors, (145), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 14:16:38,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:16:38,232 INFO L93 Difference]: Finished difference Result 194 states and 310 transitions. [2022-07-19 14:16:38,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:16:38,233 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2022-07-19 14:16:38,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:16:38,247 INFO L225 Difference]: With dead ends: 194 [2022-07-19 14:16:38,247 INFO L226 Difference]: Without dead ends: 97 [2022-07-19 14:16:38,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:16:38,267 INFO L413 NwaCegarLoop]: 144 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, 144 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 [2022-07-19 14:16:38,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:16:38,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-07-19 14:16:38,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-07-19 14:16:38,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 86 states have (on average 1.4534883720930232) internal successors, (125), 86 states have internal predecessors, (125), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-19 14:16:38,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions. [2022-07-19 14:16:38,311 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 139 transitions. Word has length 21 [2022-07-19 14:16:38,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:16:38,313 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 139 transitions. [2022-07-19 14:16:38,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 14:16:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2022-07-19 14:16:38,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-19 14:16:38,315 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:16:38,315 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:16:38,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 14:16:38,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:16:38,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:16:38,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:16:38,521 INFO L85 PathProgramCache]: Analyzing trace with hash 769881417, now seen corresponding path program 1 times [2022-07-19 14:16:38,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:16:38,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558646138] [2022-07-19 14:16:38,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:16:38,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:16:38,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:16:38,524 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) [2022-07-19 14:16:38,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 14:16:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:16:39,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-19 14:16:39,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:16:42,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:16:42,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:16:53,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-19 14:16:53,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:16:53,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558646138] [2022-07-19 14:16:53,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1558646138] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:16:53,518 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 14:16:53,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2022-07-19 14:16:53,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727714767] [2022-07-19 14:16:53,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 14:16:53,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-19 14:16:53,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:16:53,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-19 14:16:53,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-07-19 14:16:53,520 INFO L87 Difference]: Start difference. First operand 97 states and 139 transitions. Second operand has 21 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 17 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-19 14:17:01,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:07,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:09,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:10,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:12,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:17,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:19,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:21,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:23,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:24,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:24,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:17:24,925 INFO L93 Difference]: Finished difference Result 161 states and 235 transitions. [2022-07-19 14:17:24,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 14:17:24,926 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 17 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 23 [2022-07-19 14:17:24,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:17:24,929 INFO L225 Difference]: With dead ends: 161 [2022-07-19 14:17:24,929 INFO L226 Difference]: Without dead ends: 156 [2022-07-19 14:17:24,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2022-07-19 14:17:24,930 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 340 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 19 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 324 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2022-07-19 14:17:24,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1370 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 366 Invalid, 3 Unknown, 324 Unchecked, 28.6s Time] [2022-07-19 14:17:24,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-07-19 14:17:24,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 108. [2022-07-19 14:17:24,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 96 states have (on average 1.40625) internal successors, (135), 96 states have internal predecessors, (135), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-19 14:17:24,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 149 transitions. [2022-07-19 14:17:24,951 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 149 transitions. Word has length 23 [2022-07-19 14:17:24,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:17:24,952 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 149 transitions. [2022-07-19 14:17:24,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 17 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-19 14:17:24,952 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 149 transitions. [2022-07-19 14:17:24,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-19 14:17:24,953 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:17:24,953 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:17:24,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 14:17:25,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:17:25,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:17:25,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:17:25,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1728789200, now seen corresponding path program 1 times [2022-07-19 14:17:25,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:17:25,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009548356] [2022-07-19 14:17:25,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:17:25,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:17:25,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:17:25,166 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) [2022-07-19 14:17:25,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 14:17:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:17:26,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-19 14:17:26,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:17:29,690 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-19 14:17:29,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 14:17:40,520 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 14:17:40,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:17:40,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009548356] [2022-07-19 14:17:40,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009548356] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 14:17:40,521 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 14:17:40,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2022-07-19 14:17:40,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109377516] [2022-07-19 14:17:40,521 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 14:17:40,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-19 14:17:40,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:17:40,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-19 14:17:40,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-07-19 14:17:40,522 INFO L87 Difference]: Start difference. First operand 108 states and 149 transitions. Second operand has 19 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 15 states have internal predecessors, (43), 4 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-19 14:17:45,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:51,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:54,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:56,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 14:17:57,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:18:06,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:18:11,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:18:13,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:18:15,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:18:19,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:18:20,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:18:20,279 INFO L93 Difference]: Finished difference Result 158 states and 229 transitions. [2022-07-19 14:18:20,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 14:18:20,280 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 15 states have internal predecessors, (43), 4 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 28 [2022-07-19 14:18:20,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:18:20,281 INFO L225 Difference]: With dead ends: 158 [2022-07-19 14:18:20,281 INFO L226 Difference]: Without dead ends: 153 [2022-07-19 14:18:20,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2022-07-19 14:18:20,282 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 260 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 329 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2022-07-19 14:18:20,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1906 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 468 Invalid, 6 Unknown, 329 Unchecked, 34.9s Time] [2022-07-19 14:18:20,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-07-19 14:18:20,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 113. [2022-07-19 14:18:20,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 101 states have (on average 1.4059405940594059) internal successors, (142), 101 states have internal predecessors, (142), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-19 14:18:20,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 156 transitions. [2022-07-19 14:18:20,289 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 156 transitions. Word has length 28 [2022-07-19 14:18:20,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:18:20,290 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 156 transitions. [2022-07-19 14:18:20,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 15 states have internal predecessors, (43), 4 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-19 14:18:20,290 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 156 transitions. [2022-07-19 14:18:20,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-19 14:18:20,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:18:20,291 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:18:20,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 14:18:20,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:18:20,499 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:18:20,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:18:20,500 INFO L85 PathProgramCache]: Analyzing trace with hash -682677152, now seen corresponding path program 1 times [2022-07-19 14:18:20,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:18:20,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369866553] [2022-07-19 14:18:20,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:18:20,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:18:20,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:18:20,502 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:18:20,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 14:18:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:18:21,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-19 14:18:21,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:18:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:18:22,883 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:18:22,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:18:22,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369866553] [2022-07-19 14:18:22,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369866553] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:18:22,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:18:22,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 14:18:22,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483078434] [2022-07-19 14:18:22,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:18:22,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 14:18:22,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:18:22,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 14:18:22,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 14:18:22,884 INFO L87 Difference]: Start difference. First operand 113 states and 156 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 14:18:25,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:18:25,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:18:25,911 INFO L93 Difference]: Finished difference Result 190 states and 267 transitions. [2022-07-19 14:18:25,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 14:18:25,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2022-07-19 14:18:25,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:18:25,913 INFO L225 Difference]: With dead ends: 190 [2022-07-19 14:18:25,913 INFO L226 Difference]: Without dead ends: 100 [2022-07-19 14:18:25,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-07-19 14:18:25,914 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 22 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-19 14:18:25,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1004 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 15 Unchecked, 1.9s Time] [2022-07-19 14:18:25,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-07-19 14:18:25,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-07-19 14:18:25,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 88 states have internal predecessors, (124), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-19 14:18:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 138 transitions. [2022-07-19 14:18:25,920 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 138 transitions. Word has length 28 [2022-07-19 14:18:25,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:18:25,921 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 138 transitions. [2022-07-19 14:18:25,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 14:18:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 138 transitions. [2022-07-19 14:18:25,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 14:18:25,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:18:25,922 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:18:25,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-19 14:18:26,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:18:26,131 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:18:26,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:18:26,131 INFO L85 PathProgramCache]: Analyzing trace with hash -292369321, now seen corresponding path program 1 times [2022-07-19 14:18:26,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:18:26,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477305774] [2022-07-19 14:18:26,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:18:26,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:18:26,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:18:26,133 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:18:26,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 14:18:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:18:26,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-19 14:18:26,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:18:28,222 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-19 14:18:28,222 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:18:28,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:18:28,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477305774] [2022-07-19 14:18:28,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477305774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:18:28,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:18:28,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 14:18:28,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900035126] [2022-07-19 14:18:28,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:18:28,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 14:18:28,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:18:28,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 14:18:28,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 14:18:28,224 INFO L87 Difference]: Start difference. First operand 100 states and 138 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 14:18:29,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:18:29,341 INFO L93 Difference]: Finished difference Result 100 states and 138 transitions. [2022-07-19 14:18:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 14:18:29,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2022-07-19 14:18:29,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:18:29,342 INFO L225 Difference]: With dead ends: 100 [2022-07-19 14:18:29,342 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 14:18:29,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-19 14:18:29,345 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 5 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 14:18:29,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 69 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 5 Unchecked, 0.5s Time] [2022-07-19 14:18:29,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 14:18:29,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 14:18:29,346 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) [2022-07-19 14:18:29,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 14:18:29,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-07-19 14:18:29,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:18:29,346 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 14:18:29,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 14:18:29,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 14:18:29,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 14:18:29,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:18:29,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-19 14:18:29,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:18:29,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 14:18:31,777 INFO L899 garLoopResultBuilder]: For program point isnan_floatFINAL(line 15) no Hoare annotation was computed. [2022-07-19 14:18:31,777 INFO L902 garLoopResultBuilder]: At program point isnan_floatENTRY(line 15) the Hoare annotation is: true [2022-07-19 14:18:31,777 INFO L899 garLoopResultBuilder]: For program point isnan_floatEXIT(line 15) no Hoare annotation was computed. [2022-07-19 14:18:31,778 INFO L899 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 17 30) no Hoare annotation was computed. [2022-07-19 14:18:31,778 INFO L899 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 17 30) no Hoare annotation was computed. [2022-07-19 14:18:31,778 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 28) no Hoare annotation was computed. [2022-07-19 14:18:31,778 INFO L899 garLoopResultBuilder]: For program point L24-1(lines 17 30) no Hoare annotation was computed. [2022-07-19 14:18:31,778 INFO L902 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 17 30) the Hoare annotation is: true [2022-07-19 14:18:31,778 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2022-07-19 14:18:31,778 INFO L899 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2022-07-19 14:18:31,778 INFO L902 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: true [2022-07-19 14:18:31,778 INFO L899 garLoopResultBuilder]: For program point L201-1(lines 201 205) no Hoare annotation was computed. [2022-07-19 14:18:31,779 INFO L895 garLoopResultBuilder]: At program point L201-2(lines 201 205) the Hoare annotation is: false [2022-07-19 14:18:31,779 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 14:18:31,779 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-07-19 14:18:31,779 INFO L895 garLoopResultBuilder]: At program point L235(line 235) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_main_~res~0#1| |ULTIMATE.start_main_~res~0#1|)) [2022-07-19 14:18:31,779 INFO L899 garLoopResultBuilder]: For program point L235-1(lines 235 238) no Hoare annotation was computed. [2022-07-19 14:18:31,779 INFO L899 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2022-07-19 14:18:31,779 INFO L899 garLoopResultBuilder]: For program point L236(line 236) no Hoare annotation was computed. [2022-07-19 14:18:31,779 INFO L899 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2022-07-19 14:18:31,779 INFO L899 garLoopResultBuilder]: For program point L187-2(line 187) no Hoare annotation was computed. [2022-07-19 14:18:31,780 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 140) no Hoare annotation was computed. [2022-07-19 14:18:31,780 INFO L895 garLoopResultBuilder]: At program point L123(lines 123 218) the Hoare annotation is: (let ((.cse0 (= currentRoundingMode roundNearestTiesToEven))) (or (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)) (exists ((|ULTIMATE.start___ieee754_atan2f_~x#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start___ieee754_atan2f_~y#1| (_ FloatingPoint 8 24))) (and (= |ULTIMATE.start___ieee754_atan2f_#res#1| (fp.add roundNearestTiesToEven |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)) (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)))) .cse0) (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) (exists ((|ULTIMATE.start___ieee754_atan2f_~x#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start___ieee754_atan2f_~y#1| (_ FloatingPoint 8 24))) (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) (= |ULTIMATE.start___ieee754_atan2f_#res#1| (fp.add roundNearestTiesToEven |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)))) (not (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|)) .cse0))) [2022-07-19 14:18:31,780 INFO L899 garLoopResultBuilder]: For program point L206(lines 206 210) no Hoare annotation was computed. [2022-07-19 14:18:31,780 INFO L899 garLoopResultBuilder]: For program point L173(lines 173 182) no Hoare annotation was computed. [2022-07-19 14:18:31,780 INFO L899 garLoopResultBuilder]: For program point L206-1(lines 199 211) no Hoare annotation was computed. [2022-07-19 14:18:31,780 INFO L899 garLoopResultBuilder]: For program point L206-2(lines 206 210) no Hoare annotation was computed. [2022-07-19 14:18:31,780 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 14:18:31,780 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 195) no Hoare annotation was computed. [2022-07-19 14:18:31,781 INFO L899 garLoopResultBuilder]: For program point L174(line 174) no Hoare annotation was computed. [2022-07-19 14:18:31,781 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 142) no Hoare annotation was computed. [2022-07-19 14:18:31,781 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-07-19 14:18:31,781 INFO L899 garLoopResultBuilder]: For program point L158-2(line 158) no Hoare annotation was computed. [2022-07-19 14:18:31,781 INFO L902 garLoopResultBuilder]: At program point L241(lines 220 242) the Hoare annotation is: true [2022-07-19 14:18:31,781 INFO L895 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: false [2022-07-19 14:18:31,781 INFO L899 garLoopResultBuilder]: For program point L142-1(line 142) no Hoare annotation was computed. [2022-07-19 14:18:31,781 INFO L899 garLoopResultBuilder]: For program point L192(lines 192 195) no Hoare annotation was computed. [2022-07-19 14:18:31,781 INFO L899 garLoopResultBuilder]: For program point L192-2(lines 190 195) no Hoare annotation was computed. [2022-07-19 14:18:31,782 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-07-19 14:18:31,782 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 184) no Hoare annotation was computed. [2022-07-19 14:18:31,782 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 123 218) no Hoare annotation was computed. [2022-07-19 14:18:31,782 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2022-07-19 14:18:31,782 INFO L895 garLoopResultBuilder]: At program point L127-2(lines 127 131) the Hoare annotation is: (let ((.cse0 (= currentRoundingMode roundNearestTiesToEven))) (or (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)) .cse0) (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) (not (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|)) .cse0))) [2022-07-19 14:18:31,782 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 14:18:31,782 INFO L899 garLoopResultBuilder]: For program point L127-3(lines 127 131) no Hoare annotation was computed. [2022-07-19 14:18:31,782 INFO L899 garLoopResultBuilder]: For program point L161(lines 161 183) no Hoare annotation was computed. [2022-07-19 14:18:31,782 INFO L899 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2022-07-19 14:18:31,783 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 155) no Hoare annotation was computed. [2022-07-19 14:18:31,783 INFO L899 garLoopResultBuilder]: For program point L145-2(lines 123 218) no Hoare annotation was computed. [2022-07-19 14:18:31,783 INFO L895 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: false [2022-07-19 14:18:31,783 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 171) no Hoare annotation was computed. [2022-07-19 14:18:31,783 INFO L895 garLoopResultBuilder]: At program point L195-1(line 195) the Hoare annotation is: false [2022-07-19 14:18:31,783 INFO L899 garLoopResultBuilder]: For program point L195-2(line 195) no Hoare annotation was computed. [2022-07-19 14:18:31,783 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 154) no Hoare annotation was computed. [2022-07-19 14:18:31,783 INFO L895 garLoopResultBuilder]: At program point L229(line 229) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2022-07-19 14:18:31,784 INFO L899 garLoopResultBuilder]: For program point L229-1(line 229) no Hoare annotation was computed. [2022-07-19 14:18:31,784 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 217) no Hoare annotation was computed. [2022-07-19 14:18:31,784 INFO L899 garLoopResultBuilder]: For program point L229-2(line 229) no Hoare annotation was computed. [2022-07-19 14:18:31,784 INFO L899 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2022-07-19 14:18:31,784 INFO L895 garLoopResultBuilder]: At program point L229-4(line 229) the Hoare annotation is: (let ((.cse0 (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse1 (not .cse0))) (and (or (and (= |ULTIMATE.start_main_#t~ret41#1| (_ bv0 32)) .cse0) (and (= |ULTIMATE.start_main_#t~ret41#1| (_ bv1 32)) .cse1)) (or (and |ULTIMATE.start_main_#t~short43#1| .cse1) (and .cse0 (not |ULTIMATE.start_main_#t~short43#1|))) (= currentRoundingMode roundNearestTiesToEven)))) [2022-07-19 14:18:31,784 INFO L899 garLoopResultBuilder]: For program point L229-5(line 229) no Hoare annotation was computed. [2022-07-19 14:18:31,784 INFO L899 garLoopResultBuilder]: For program point L229-6(lines 229 239) no Hoare annotation was computed. [2022-07-19 14:18:31,784 INFO L899 garLoopResultBuilder]: For program point L229-8(lines 229 239) no Hoare annotation was computed. [2022-07-19 14:18:31,784 INFO L899 garLoopResultBuilder]: For program point L213(line 213) no Hoare annotation was computed. [2022-07-19 14:18:31,785 INFO L899 garLoopResultBuilder]: For program point L180(line 180) no Hoare annotation was computed. [2022-07-19 14:18:31,785 INFO L899 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2022-07-19 14:18:31,785 INFO L899 garLoopResultBuilder]: For program point L147-2(line 147) no Hoare annotation was computed. [2022-07-19 14:18:31,785 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-07-19 14:18:31,785 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 14:18:31,785 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 236) no Hoare annotation was computed. [2022-07-19 14:18:31,785 INFO L899 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2022-07-19 14:18:31,785 INFO L899 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2022-07-19 14:18:31,785 INFO L899 garLoopResultBuilder]: For program point L215(line 215) no Hoare annotation was computed. [2022-07-19 14:18:31,786 INFO L899 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2022-07-19 14:18:31,786 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 133 137) no Hoare annotation was computed. [2022-07-19 14:18:31,786 INFO L895 garLoopResultBuilder]: At program point L133-2(lines 133 137) the Hoare annotation is: (let ((.cse0 (= currentRoundingMode roundNearestTiesToEven))) (or (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)) .cse0) (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) (exists ((|ULTIMATE.start___ieee754_atan2f_~hx~1#1| (_ BitVec 32))) (and (= |ULTIMATE.start___ieee754_atan2f_~ix~2#1| (bvand (_ bv2147483647 32) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)) (not (let ((.cse1 (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)))) (fp.eq .cse1 .cse1))))) (not (let ((.cse2 (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)))) (fp.eq .cse2 .cse2))) (not (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|)) .cse0))) [2022-07-19 14:18:31,786 INFO L899 garLoopResultBuilder]: For program point L133-3(lines 133 137) no Hoare annotation was computed. [2022-07-19 14:18:31,786 INFO L899 garLoopResultBuilder]: For program point L150(line 150) no Hoare annotation was computed. [2022-07-19 14:18:31,786 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-07-19 14:18:31,786 INFO L902 garLoopResultBuilder]: At program point atan_floatENTRY(lines 56 118) the Hoare annotation is: true [2022-07-19 14:18:31,786 INFO L899 garLoopResultBuilder]: For program point atan_floatFINAL(lines 56 118) no Hoare annotation was computed. [2022-07-19 14:18:31,787 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2022-07-19 14:18:31,787 INFO L902 garLoopResultBuilder]: At program point L60-2(lines 60 64) the Hoare annotation is: true [2022-07-19 14:18:31,787 INFO L899 garLoopResultBuilder]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2022-07-19 14:18:31,787 INFO L902 garLoopResultBuilder]: At program point L81(line 81) the Hoare annotation is: true [2022-07-19 14:18:31,787 INFO L899 garLoopResultBuilder]: For program point L81-1(line 81) no Hoare annotation was computed. [2022-07-19 14:18:31,787 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 72) no Hoare annotation was computed. [2022-07-19 14:18:31,787 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 98) no Hoare annotation was computed. [2022-07-19 14:18:31,787 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 99) no Hoare annotation was computed. [2022-07-19 14:18:31,787 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 73) no Hoare annotation was computed. [2022-07-19 14:18:31,788 INFO L899 garLoopResultBuilder]: For program point L91(lines 91 97) no Hoare annotation was computed. [2022-07-19 14:18:31,788 INFO L899 garLoopResultBuilder]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2022-07-19 14:18:31,788 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-07-19 14:18:31,788 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 89) no Hoare annotation was computed. [2022-07-19 14:18:31,788 INFO L899 garLoopResultBuilder]: For program point L116-2(line 116) no Hoare annotation was computed. [2022-07-19 14:18:31,788 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 117) no Hoare annotation was computed. [2022-07-19 14:18:31,788 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 78) no Hoare annotation was computed. [2022-07-19 14:18:31,788 INFO L899 garLoopResultBuilder]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2022-07-19 14:18:31,788 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 68) no Hoare annotation was computed. [2022-07-19 14:18:31,789 INFO L899 garLoopResultBuilder]: For program point atan_floatEXIT(lines 56 118) no Hoare annotation was computed. [2022-07-19 14:18:31,789 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 77) no Hoare annotation was computed. [2022-07-19 14:18:31,791 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-19 14:18:31,792 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:18:31,800 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,800 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,807 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,808 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,810 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,811 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,811 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,812 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,812 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,812 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,812 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,812 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,812 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,813 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,813 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,813 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,813 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,813 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,813 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,813 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,813 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,814 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,814 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,814 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,814 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,814 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,815 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,815 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,816 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,816 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,816 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,816 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,816 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,816 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:18:31 BoogieIcfgContainer [2022-07-19 14:18:31,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:18:31,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:18:31,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:18:31,818 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:18:31,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:16:37" (3/4) ... [2022-07-19 14:18:31,820 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 14:18:31,830 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2022-07-19 14:18:31,830 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2022-07-19 14:18:31,830 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2022-07-19 14:18:31,846 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-07-19 14:18:31,846 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-07-19 14:18:31,847 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-19 14:18:31,847 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 14:18:31,880 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~FLOAT(y, y) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) || ((((!~fp.eq~FLOAT(x, x) && (\exists ULTIMATE.start___ieee754_atan2f_~hx~1#1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_atan2f_~hx~1#1) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0]), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0])))) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && !~fp.eq~FLOAT(x, x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) [2022-07-19 14:18:31,880 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!~fp.eq~FLOAT(y, y) && (\exists ULTIMATE.start___ieee754_atan2f_~x#1 : C_FLOAT, ULTIMATE.start___ieee754_atan2f_~y#1 : C_FLOAT :: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_atan2f_~x#1, ULTIMATE.start___ieee754_atan2f_~y#1) && !~fp.eq~FLOAT(ULTIMATE.start___ieee754_atan2f_~y#1, ULTIMATE.start___ieee754_atan2f_~y#1))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) || (((!~fp.eq~FLOAT(x, x) && (\exists ULTIMATE.start___ieee754_atan2f_~x#1 : C_FLOAT, ULTIMATE.start___ieee754_atan2f_~y#1 : C_FLOAT :: !~fp.eq~FLOAT(ULTIMATE.start___ieee754_atan2f_~x#1, ULTIMATE.start___ieee754_atan2f_~x#1) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_atan2f_~x#1, ULTIMATE.start___ieee754_atan2f_~y#1))) && !~fp.eq~FLOAT(x, x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) [2022-07-19 14:18:31,898 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 14:18:31,898 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:18:31,899 INFO L158 Benchmark]: Toolchain (without parser) took 126357.90ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 43.0MB in the beginning and 35.2MB in the end (delta: 7.8MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2022-07-19 14:18:31,899 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.8MB in the end (delta: 33.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:18:31,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.53ms. Allocated memory is still 62.9MB. Free memory was 42.7MB in the beginning and 40.9MB in the end (delta: 1.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 14:18:31,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.30ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 38.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:18:31,900 INFO L158 Benchmark]: Boogie Preprocessor took 48.38ms. Allocated memory is still 62.9MB. Free memory was 38.6MB in the beginning and 35.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:18:31,900 INFO L158 Benchmark]: RCFGBuilder took 11274.05ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 35.8MB in the beginning and 46.3MB in the end (delta: -10.5MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-07-19 14:18:31,900 INFO L158 Benchmark]: TraceAbstraction took 114557.16ms. Allocated memory is still 79.7MB. Free memory was 45.9MB in the beginning and 41.5MB in the end (delta: 4.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2022-07-19 14:18:31,901 INFO L158 Benchmark]: Witness Printer took 81.24ms. Allocated memory is still 79.7MB. Free memory was 40.8MB in the beginning and 35.2MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 14:18:31,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.8MB in the end (delta: 33.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.53ms. Allocated memory is still 62.9MB. Free memory was 42.7MB in the beginning and 40.9MB in the end (delta: 1.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.30ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 38.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.38ms. Allocated memory is still 62.9MB. Free memory was 38.6MB in the beginning and 35.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 11274.05ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 35.8MB in the beginning and 46.3MB in the end (delta: -10.5MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * TraceAbstraction took 114557.16ms. Allocated memory is still 79.7MB. Free memory was 45.9MB in the beginning and 41.5MB in the end (delta: 4.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Witness Printer took 81.24ms. Allocated memory is still 79.7MB. Free memory was 40.8MB in the beginning and 35.2MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,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[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,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[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,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[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,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[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 236]: 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 4 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 114.5s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 75.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 634 SdHoareTripleChecker+Valid, 65.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 627 mSDsluCounter, 4493 SdHoareTripleChecker+Invalid, 63.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 673 IncrementalHoareTripleChecker+Unchecked, 3941 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 935 IncrementalHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 552 mSDtfsCounter, 935 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 4 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 30.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=3, InterpolantAutomatonStates: 41, 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, 5 MinimizatonAttempts, 88 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 48 PreInvPairs, 57 NumberOfFragments, 177 HoareAnnotationTreeSize, 48 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 33 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 32.0s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 177 ConstructedInterpolants, 32 QuantifiedInterpolants, 1168 SizeOfPredicates, 42 NumberOfNonLiveVariables, 647 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 26/39 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: 201]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant [2022-07-19 14:18:31,910 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,911 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,911 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,911 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!~fp.eq~FLOAT(y, y) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) || ((!~fp.eq~FLOAT(x, x) && !~fp.eq~FLOAT(x, x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant [2022-07-19 14:18:31,912 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,912 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,913 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,913 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,913 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,913 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,913 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,913 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,913 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,914 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,914 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~x#1,QUANTIFIED] [2022-07-19 14:18:31,914 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~y#1,QUANTIFIED] [2022-07-19 14:18:31,915 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((!~fp.eq~FLOAT(y, y) && (\exists ULTIMATE.start___ieee754_atan2f_~x#1 : C_FLOAT, ULTIMATE.start___ieee754_atan2f_~y#1 : C_FLOAT :: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_atan2f_~x#1, ULTIMATE.start___ieee754_atan2f_~y#1) && !~fp.eq~FLOAT(ULTIMATE.start___ieee754_atan2f_~y#1, ULTIMATE.start___ieee754_atan2f_~y#1))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) || (((!~fp.eq~FLOAT(x, x) && (\exists ULTIMATE.start___ieee754_atan2f_~x#1 : C_FLOAT, ULTIMATE.start___ieee754_atan2f_~y#1 : C_FLOAT :: !~fp.eq~FLOAT(ULTIMATE.start___ieee754_atan2f_~x#1, ULTIMATE.start___ieee754_atan2f_~x#1) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_atan2f_~x#1, ULTIMATE.start___ieee754_atan2f_~y#1))) && !~fp.eq~FLOAT(x, x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant [2022-07-19 14:18:31,915 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,915 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,916 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,916 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,916 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,916 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,916 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,916 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-19 14:18:31,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,917 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2022-07-19 14:18:31,917 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!~fp.eq~FLOAT(y, y) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) || ((((!~fp.eq~FLOAT(x, x) && (\exists ULTIMATE.start___ieee754_atan2f_~hx~1#1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_atan2f_~hx~1#1) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0]), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0])))) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && !~fp.eq~FLOAT(x, x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-19 14:18:32,134 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-07-19 14:18:32,174 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 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE