./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0971.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0971.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 4b1687984206fd71420342d8c308fb8f0bb6aa8eb322759ead9cb78bc76e256a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:45:28,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:45:28,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:45:28,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:45:28,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:45:28,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:45:28,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:45:28,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:45:28,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:45:28,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:45:28,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:45:28,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:45:28,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:45:28,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:45:28,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:45:28,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:45:28,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:45:28,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:45:28,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:45:28,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:45:28,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:45:28,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:45:28,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:45:28,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:45:28,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:45:28,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:45:28,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:45:28,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:45:28,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:45:28,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:45:28,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:45:28,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:45:28,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:45:28,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:45:28,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:45:28,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:45:28,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:45:28,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:45:28,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:45:28,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:45:28,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:45:28,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:45:28,473 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:45:28,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:45:28,474 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:45:28,474 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:45:28,475 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:45:28,475 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:45:28,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:45:28,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:45:28,475 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:45:28,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:45:28,476 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:45:28,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:45:28,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:45:28,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:45:28,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:45:28,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:45:28,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:45:28,477 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:45:28,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:45:28,477 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:45:28,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:45:28,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:45:28,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:45:28,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:45:28,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:45:28,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:45:28,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:45:28,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:45:28,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:45:28,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:45:28,479 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:45:28,480 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:45:28,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:45:28,480 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b1687984206fd71420342d8c308fb8f0bb6aa8eb322759ead9cb78bc76e256a [2022-02-20 16:45:28,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:45:28,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:45:28,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:45:28,691 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:45:28,691 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:45:28,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2022-02-20 16:45:28,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee28ef3fb/7bac542d60fe4060a7e3719a2c92593c/FLAG15acfacfe [2022-02-20 16:45:29,035 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:45:29,036 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2022-02-20 16:45:29,040 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee28ef3fb/7bac542d60fe4060a7e3719a2c92593c/FLAG15acfacfe [2022-02-20 16:45:29,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee28ef3fb/7bac542d60fe4060a7e3719a2c92593c [2022-02-20 16:45:29,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:45:29,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:45:29,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:45:29,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:45:29,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:45:29,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:45:29" (1/1) ... [2022-02-20 16:45:29,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e240f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:29, skipping insertion in model container [2022-02-20 16:45:29,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:45:29" (1/1) ... [2022-02-20 16:45:29,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:45:29,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:45:29,646 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_0971.c[4045,4058] [2022-02-20 16:45:29,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:45:29,659 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:45:29,706 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_0971.c[4045,4058] [2022-02-20 16:45:29,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:45:29,730 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:45:29,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:29 WrapperNode [2022-02-20 16:45:29,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:45:29,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:45:29,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:45:29,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:45:29,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:29" (1/1) ... [2022-02-20 16:45:29,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:29" (1/1) ... [2022-02-20 16:45:29,780 INFO L137 Inliner]: procedures = 17, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 230 [2022-02-20 16:45:29,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:45:29,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:45:29,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:45:29,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:45:29,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:29" (1/1) ... [2022-02-20 16:45:29,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:29" (1/1) ... [2022-02-20 16:45:29,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:29" (1/1) ... [2022-02-20 16:45:29,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:29" (1/1) ... [2022-02-20 16:45:29,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:29" (1/1) ... [2022-02-20 16:45:29,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:29" (1/1) ... [2022-02-20 16:45:29,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:29" (1/1) ... [2022-02-20 16:45:29,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:45:29,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:45:29,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:45:29,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:45:29,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:29" (1/1) ... [2022-02-20 16:45:29,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:45:29,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:45:29,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:45:29,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:45:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:45:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:45:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:45:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-20 16:45:29,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 16:45:29,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-20 16:45:29,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:45:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:45:29,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 16:45:29,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:45:29,992 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:45:29,994 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:45:30,361 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:45:30,367 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:45:30,370 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-02-20 16:45:30,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:30 BoogieIcfgContainer [2022-02-20 16:45:30,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:45:30,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:45:30,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:45:30,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:45:30,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:45:29" (1/3) ... [2022-02-20 16:45:30,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70016d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:30, skipping insertion in model container [2022-02-20 16:45:30,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:29" (2/3) ... [2022-02-20 16:45:30,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70016d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:30, skipping insertion in model container [2022-02-20 16:45:30,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:30" (3/3) ... [2022-02-20 16:45:30,384 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2022-02-20 16:45:30,392 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:45:30,392 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:45:30,438 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:45:30,443 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:45:30,443 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:45:30,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 51 states have (on average 1.7254901960784315) internal successors, (88), 52 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:30,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 16:45:30,463 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:45:30,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:45:30,464 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:45:30,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:45:30,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1900902288, now seen corresponding path program 1 times [2022-02-20 16:45:30,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:45:30,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834504393] [2022-02-20 16:45:30,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:45:30,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:45:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:30,597 INFO L290 TraceCheckUtils]: 0: Hoare triple {56#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3);~ln2_hi_log~0 := 0.69313812256;~ln2_lo_log~0 := 9.0580006145E-6;~two25_log~0 := 3.3554432E7;~Lg1_log~0 := 0.66666668653;~Lg2_log~0 := 0.40000000596;~Lg3_log~0 := 0.28571429849;~Lg4_log~0 := 0.22222198546;~Lg5_log~0 := 0.1818357259;~Lg6_log~0 := 0.15313838422;~Lg7_log~0 := 0.1479819864;~zero_log~0 := 0.0;~two25_log10~0 := 3.3554432E7;~ivln10_log10~0 := 0.43429449201;~log10_2hi_log10~0 := 0.30102920532;~log10_2lo_log10~0 := 7.9034151668E-7;~zero~0 := 0.0; {56#true} is VALID [2022-02-20 16:45:30,598 INFO L290 TraceCheckUtils]: 1: Hoare triple {56#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret13#1, main_#t~ret14#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0);assume { :begin_inline___ieee754_log10f } true;__ieee754_log10f_#in~x#1 := main_~x~0#1;havoc __ieee754_log10f_#res#1;havoc __ieee754_log10f_#t~mem8#1, __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, __ieee754_log10f_#t~mem9#1, __ieee754_log10f_~#gf_u~3#1.base, __ieee754_log10f_~#gf_u~3#1.offset, __ieee754_log10f_#t~mem11#1, __ieee754_log10f_~#sf_u~1#1.base, __ieee754_log10f_~#sf_u~1#1.offset, __ieee754_log10f_#t~ret12#1, __ieee754_log10f_~x#1, __ieee754_log10f_~y~0#1, __ieee754_log10f_~z~1#1, __ieee754_log10f_~i~1#1, __ieee754_log10f_~k~1#1, __ieee754_log10f_~hx~0#1, __ieee754_log10f_#t~nondet10#1;__ieee754_log10f_~x#1 := __ieee754_log10f_#in~x#1;havoc __ieee754_log10f_~y~0#1;havoc __ieee754_log10f_~z~1#1;havoc __ieee754_log10f_~i~1#1;havoc __ieee754_log10f_~k~1#1;havoc __ieee754_log10f_~hx~0#1; {56#true} is VALID [2022-02-20 16:45:30,599 INFO L290 TraceCheckUtils]: 2: Hoare triple {56#true} assume !true; {57#false} is VALID [2022-02-20 16:45:30,599 INFO L290 TraceCheckUtils]: 3: Hoare triple {57#false} __ieee754_log10f_~k~1#1 := 0; {57#false} is VALID [2022-02-20 16:45:30,599 INFO L290 TraceCheckUtils]: 4: Hoare triple {57#false} assume 0 == (if 0 == __ieee754_log10f_~hx~0#1 then 0 else (if 1 == __ieee754_log10f_~hx~0#1 then 1 else ~bitwiseAnd(__ieee754_log10f_~hx~0#1, 2147483647)));__ieee754_log10f_#res#1 := ~someBinaryArithmeticFLOAToperation(~someUnaryFLOAToperation(~two25_log10~0), ~zero~0); {57#false} is VALID [2022-02-20 16:45:30,599 INFO L290 TraceCheckUtils]: 5: Hoare triple {57#false} main_#t~ret13#1 := __ieee754_log10f_#res#1;assume { :end_inline___ieee754_log10f } true;main_~res~0#1 := main_#t~ret13#1;havoc main_#t~ret13#1;assume { :begin_inline_isnan_float } true;isnan_float_#in~x#1 := main_~res~0#1;havoc isnan_float_#res#1;havoc isnan_float_~x#1;isnan_float_~x#1 := isnan_float_#in~x#1;isnan_float_#res#1 := (if ~someBinaryFLOATComparisonOperation(isnan_float_~x#1, isnan_float_~x#1) then 1 else 0); {57#false} is VALID [2022-02-20 16:45:30,600 INFO L290 TraceCheckUtils]: 6: Hoare triple {57#false} main_#t~ret14#1 := isnan_float_#res#1;assume { :end_inline_isnan_float } true;assume -2147483648 <= main_#t~ret14#1 && main_#t~ret14#1 <= 2147483647; {57#false} is VALID [2022-02-20 16:45:30,600 INFO L290 TraceCheckUtils]: 7: Hoare triple {57#false} assume 0 == main_#t~ret14#1;havoc main_#t~ret14#1; {57#false} is VALID [2022-02-20 16:45:30,600 INFO L290 TraceCheckUtils]: 8: Hoare triple {57#false} assume !false; {57#false} is VALID [2022-02-20 16:45:30,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:45:30,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:45:30,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834504393] [2022-02-20 16:45:30,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834504393] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:45:30,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:45:30,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:45:30,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700407626] [2022-02-20 16:45:30,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:45:30,607 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 16:45:30,608 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:45:30,611 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:30,619 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:30,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:45:30,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:45:30,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:45:30,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:30,636 INFO L87 Difference]: Start difference. First operand has 53 states, 51 states have (on average 1.7254901960784315) internal successors, (88), 52 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:30,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:30,688 INFO L93 Difference]: Finished difference Result 104 states and 174 transitions. [2022-02-20 16:45:30,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:45:30,688 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 16:45:30,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:45:30,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:30,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 174 transitions. [2022-02-20 16:45:30,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:30,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 174 transitions. [2022-02-20 16:45:30,702 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 174 transitions. [2022-02-20 16:45:30,860 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 174 edges. 174 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:30,874 INFO L225 Difference]: With dead ends: 104 [2022-02-20 16:45:30,875 INFO L226 Difference]: Without dead ends: 50 [2022-02-20 16:45:30,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:30,882 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:45:30,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:45:30,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-02-20 16:45:30,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-02-20 16:45:30,906 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:45:30,908 INFO L82 GeneralOperation]: Start isEquivalent. First operand 50 states. Second operand has 50 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:30,909 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand has 50 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:30,910 INFO L87 Difference]: Start difference. First operand 50 states. Second operand has 50 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:30,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:30,916 INFO L93 Difference]: Finished difference Result 50 states and 70 transitions. [2022-02-20 16:45:30,917 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2022-02-20 16:45:30,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:30,917 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:30,918 INFO L74 IsIncluded]: Start isIncluded. First operand has 50 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 50 states. [2022-02-20 16:45:30,918 INFO L87 Difference]: Start difference. First operand has 50 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 50 states. [2022-02-20 16:45:30,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:30,920 INFO L93 Difference]: Finished difference Result 50 states and 70 transitions. [2022-02-20 16:45:30,920 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2022-02-20 16:45:30,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:30,923 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:30,923 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:45:30,923 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:45:30,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:30,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2022-02-20 16:45:30,926 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 9 [2022-02-20 16:45:30,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:45:30,927 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2022-02-20 16:45:30,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:30,927 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2022-02-20 16:45:30,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-02-20 16:45:30,927 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:45:30,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:45:30,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:45:30,928 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:45:30,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:45:30,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1487448525, now seen corresponding path program 1 times [2022-02-20 16:45:30,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:45:30,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613507055] [2022-02-20 16:45:30,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:45:30,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:45:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:45:30,981 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:45:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:45:31,039 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:45:31,043 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:45:31,044 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:45:31,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 16:45:31,048 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 16:45:31,050 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:45:31,095 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:45:31,097 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:45:31,098 WARN L170 areAnnotationChecker]: L110-2 has no Hoare annotation [2022-02-20 16:45:31,098 WARN L170 areAnnotationChecker]: L110-2 has no Hoare annotation [2022-02-20 16:45:31,098 WARN L170 areAnnotationChecker]: L110-1 has no Hoare annotation [2022-02-20 16:45:31,098 WARN L170 areAnnotationChecker]: L110-1 has no Hoare annotation [2022-02-20 16:45:31,098 WARN L170 areAnnotationChecker]: L110-3 has no Hoare annotation [2022-02-20 16:45:31,098 WARN L170 areAnnotationChecker]: L117 has no Hoare annotation [2022-02-20 16:45:31,099 WARN L170 areAnnotationChecker]: L117 has no Hoare annotation [2022-02-20 16:45:31,099 WARN L170 areAnnotationChecker]: L142 has no Hoare annotation [2022-02-20 16:45:31,099 WARN L170 areAnnotationChecker]: L119 has no Hoare annotation [2022-02-20 16:45:31,099 WARN L170 areAnnotationChecker]: L119 has no Hoare annotation [2022-02-20 16:45:31,099 WARN L170 areAnnotationChecker]: L146 has no Hoare annotation [2022-02-20 16:45:31,099 WARN L170 areAnnotationChecker]: L121 has no Hoare annotation [2022-02-20 16:45:31,099 WARN L170 areAnnotationChecker]: L121 has no Hoare annotation [2022-02-20 16:45:31,099 WARN L170 areAnnotationChecker]: L159 has no Hoare annotation [2022-02-20 16:45:31,100 WARN L170 areAnnotationChecker]: L159 has no Hoare annotation [2022-02-20 16:45:31,100 WARN L170 areAnnotationChecker]: L123 has no Hoare annotation [2022-02-20 16:45:31,100 WARN L170 areAnnotationChecker]: L123 has no Hoare annotation [2022-02-20 16:45:31,100 WARN L170 areAnnotationChecker]: L160 has no Hoare annotation [2022-02-20 16:45:31,101 WARN L170 areAnnotationChecker]: L160 has no Hoare annotation [2022-02-20 16:45:31,101 WARN L170 areAnnotationChecker]: L164 has no Hoare annotation [2022-02-20 16:45:31,101 WARN L170 areAnnotationChecker]: L126-2 has no Hoare annotation [2022-02-20 16:45:31,101 WARN L170 areAnnotationChecker]: L126-2 has no Hoare annotation [2022-02-20 16:45:31,101 WARN L170 areAnnotationChecker]: L123-1 has no Hoare annotation [2022-02-20 16:45:31,101 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:45:31,101 WARN L170 areAnnotationChecker]: L126-1 has no Hoare annotation [2022-02-20 16:45:31,101 WARN L170 areAnnotationChecker]: L126-1 has no Hoare annotation [2022-02-20 16:45:31,101 WARN L170 areAnnotationChecker]: L134 has no Hoare annotation [2022-02-20 16:45:31,101 WARN L170 areAnnotationChecker]: L134 has no Hoare annotation [2022-02-20 16:45:31,102 WARN L170 areAnnotationChecker]: L134-8 has no Hoare annotation [2022-02-20 16:45:31,102 WARN L170 areAnnotationChecker]: L134-2 has no Hoare annotation [2022-02-20 16:45:31,102 WARN L170 areAnnotationChecker]: L134-2 has no Hoare annotation [2022-02-20 16:45:31,103 WARN L170 areAnnotationChecker]: L136-2 has no Hoare annotation [2022-02-20 16:45:31,103 WARN L170 areAnnotationChecker]: L136-2 has no Hoare annotation [2022-02-20 16:45:31,103 WARN L170 areAnnotationChecker]: L134-4 has no Hoare annotation [2022-02-20 16:45:31,103 WARN L170 areAnnotationChecker]: L134-4 has no Hoare annotation [2022-02-20 16:45:31,103 WARN L170 areAnnotationChecker]: L136-1 has no Hoare annotation [2022-02-20 16:45:31,103 WARN L170 areAnnotationChecker]: L136-1 has no Hoare annotation [2022-02-20 16:45:31,103 WARN L170 areAnnotationChecker]: L136-3 has no Hoare annotation [2022-02-20 16:45:31,103 WARN L170 areAnnotationChecker]: L134-6 has no Hoare annotation [2022-02-20 16:45:31,103 WARN L170 areAnnotationChecker]: L134-6 has no Hoare annotation [2022-02-20 16:45:31,104 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2022-02-20 16:45:31,104 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2022-02-20 16:45:31,104 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-20 16:45:31,104 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-20 16:45:31,104 WARN L170 areAnnotationChecker]: L25-3 has no Hoare annotation [2022-02-20 16:45:31,104 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2022-02-20 16:45:31,104 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2022-02-20 16:45:31,104 WARN L170 areAnnotationChecker]: L95 has no Hoare annotation [2022-02-20 16:45:31,104 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 16:45:31,104 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 16:45:31,105 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-02-20 16:45:31,105 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-02-20 16:45:31,105 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2022-02-20 16:45:31,105 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2022-02-20 16:45:31,105 WARN L170 areAnnotationChecker]: L41-2 has no Hoare annotation [2022-02-20 16:45:31,105 WARN L170 areAnnotationChecker]: L41-2 has no Hoare annotation [2022-02-20 16:45:31,106 WARN L170 areAnnotationChecker]: L38-1 has no Hoare annotation [2022-02-20 16:45:31,106 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2022-02-20 16:45:31,107 WARN L170 areAnnotationChecker]: L41-1 has no Hoare annotation [2022-02-20 16:45:31,107 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2022-02-20 16:45:31,107 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2022-02-20 16:45:31,107 WARN L170 areAnnotationChecker]: L50-1 has no Hoare annotation [2022-02-20 16:45:31,107 WARN L170 areAnnotationChecker]: L50-1 has no Hoare annotation [2022-02-20 16:45:31,107 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2022-02-20 16:45:31,107 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2022-02-20 16:45:31,107 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 16:45:31,107 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 16:45:31,107 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2022-02-20 16:45:31,108 WARN L170 areAnnotationChecker]: L49-4 has no Hoare annotation [2022-02-20 16:45:31,108 WARN L170 areAnnotationChecker]: L49-4 has no Hoare annotation [2022-02-20 16:45:31,108 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2022-02-20 16:45:31,108 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2022-02-20 16:45:31,108 WARN L170 areAnnotationChecker]: L49-6 has no Hoare annotation [2022-02-20 16:45:31,108 WARN L170 areAnnotationChecker]: L49-6 has no Hoare annotation [2022-02-20 16:45:31,108 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2022-02-20 16:45:31,108 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2022-02-20 16:45:31,108 WARN L170 areAnnotationChecker]: L84 has no Hoare annotation [2022-02-20 16:45:31,108 WARN L170 areAnnotationChecker]: L84 has no Hoare annotation [2022-02-20 16:45:31,109 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 16:45:31,109 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 16:45:31,109 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2022-02-20 16:45:31,109 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2022-02-20 16:45:31,109 WARN L170 areAnnotationChecker]: L86 has no Hoare annotation [2022-02-20 16:45:31,109 WARN L170 areAnnotationChecker]: L86 has no Hoare annotation [2022-02-20 16:45:31,109 WARN L170 areAnnotationChecker]: L92 has no Hoare annotation [2022-02-20 16:45:31,109 WARN L170 areAnnotationChecker]: L92 has no Hoare annotation [2022-02-20 16:45:31,109 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:45:31,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:45:31 BoogieIcfgContainer [2022-02-20 16:45:31,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:45:31,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:45:31,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:45:31,112 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:45:31,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:30" (3/4) ... [2022-02-20 16:45:31,114 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:45:31,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:45:31,116 INFO L158 Benchmark]: Toolchain (without parser) took 1649.59ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 55.3MB in the beginning and 77.5MB in the end (delta: -22.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:45:31,116 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:45:31,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.27ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 65.2MB in the end (delta: -10.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-02-20 16:45:31,117 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.04ms. Allocated memory is still 92.3MB. Free memory was 65.2MB in the beginning and 61.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-20 16:45:31,117 INFO L158 Benchmark]: Boogie Preprocessor took 39.45ms. Allocated memory is still 92.3MB. Free memory was 61.7MB in the beginning and 59.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:45:31,118 INFO L158 Benchmark]: RCFGBuilder took 551.10ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 55.3MB in the end (delta: 4.0MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2022-02-20 16:45:31,118 INFO L158 Benchmark]: TraceAbstraction took 737.18ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 54.7MB in the beginning and 78.0MB in the end (delta: -23.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:45:31,118 INFO L158 Benchmark]: Witness Printer took 3.17ms. Allocated memory is still 111.1MB. Free memory was 78.0MB in the beginning and 77.5MB in the end (delta: 570.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:45:31,120 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.27ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 65.2MB in the end (delta: -10.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.04ms. Allocated memory is still 92.3MB. Free memory was 65.2MB in the beginning and 61.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.45ms. Allocated memory is still 92.3MB. Free memory was 61.7MB in the beginning and 59.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 551.10ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 55.3MB in the end (delta: 4.0MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 737.18ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 54.7MB in the beginning and 78.0MB in the end (delta: -23.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.17ms. Allocated memory is still 111.1MB. Free memory was 78.0MB in the beginning and 77.5MB in the end (delta: 570.9kB). 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: 160]: 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 146, overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 117. Possible FailurePath: [L13-L17] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L19] static const float zero_log = 0.0; [L99-L102] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L104] static const float zero = 0.0; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L155] float x = 0.0f / 0.0f; [L156] CALL, EXPR __ieee754_log10f(x) [L107] float y, z; [L108] __int32_t i, k, hx; VAL [\old(x)=4294967297, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967297, zero=0, zero_log=0] [L111] ieee_float_shape_type gf_u; [L112] gf_u.value = (x) [L113] EXPR gf_u.word [L113] (hx) = gf_u.word [L116] k = 0 VAL [\old(x)=4294967297, hx=-1, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967297, zero=0, zero_log=0] [L117] COND TRUE ((hx & 0x7fffffff) == 0) [L118] return -two25_log10 / zero; VAL [\old(x)=4294967297, hx=-1, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967297, zero=0, zero_log=0] [L156] RET, EXPR __ieee754_log10f(x) [L156] float res = __ieee754_log10f(x); [L159] CALL, EXPR isnan_float(res) [L146] return x != x; VAL [\old(x)=4294967296, \result=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967296, zero=0, zero_log=0] [L159] RET, EXPR isnan_float(res) [L159] COND TRUE !isnan_float(res) [L160] reach_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=4294967296, two25_log=33554432, two25_log10=33554432, x=4294967297, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 73 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-20 16:45:31,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0971.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 4b1687984206fd71420342d8c308fb8f0bb6aa8eb322759ead9cb78bc76e256a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:45:32,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:45:32,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:45:32,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:45:32,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:45:32,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:45:32,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:45:32,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:45:32,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:45:32,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:45:32,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:45:32,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:45:32,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:45:32,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:45:32,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:45:32,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:45:32,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:45:32,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:45:32,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:45:32,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:45:32,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:45:32,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:45:32,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:45:32,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:45:32,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:45:32,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:45:32,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:45:32,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:45:32,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:45:32,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:45:32,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:45:32,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:45:32,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:45:32,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:45:32,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:45:32,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:45:32,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:45:32,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:45:32,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:45:32,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:45:32,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:45:32,876 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:45:32,902 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:45:32,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:45:32,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:45:32,905 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:45:32,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:45:32,906 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:45:32,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:45:32,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:45:32,907 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:45:32,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:45:32,908 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:45:32,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:45:32,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:45:32,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:45:32,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:45:32,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:45:32,909 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:45:32,909 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:45:32,909 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:45:32,909 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:45:32,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:45:32,910 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:45:32,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:45:32,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:45:32,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:45:32,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:45:32,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:45:32,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:45:32,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:45:32,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:45:32,911 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:45:32,911 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:45:32,912 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:45:32,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:45:32,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:45:32,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:45:32,912 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b1687984206fd71420342d8c308fb8f0bb6aa8eb322759ead9cb78bc76e256a [2022-02-20 16:45:33,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:45:33,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:45:33,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:45:33,212 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:45:33,212 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:45:33,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2022-02-20 16:45:33,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdf5aae33/1009771a9f094cf2aab21af9844ac35e/FLAG6c10c2861 [2022-02-20 16:45:33,609 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:45:33,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2022-02-20 16:45:33,617 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdf5aae33/1009771a9f094cf2aab21af9844ac35e/FLAG6c10c2861 [2022-02-20 16:45:33,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdf5aae33/1009771a9f094cf2aab21af9844ac35e [2022-02-20 16:45:33,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:45:33,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:45:33,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:45:33,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:45:33,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:45:33,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:45:33" (1/1) ... [2022-02-20 16:45:33,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6e5b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:33, skipping insertion in model container [2022-02-20 16:45:33,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:45:33" (1/1) ... [2022-02-20 16:45:33,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:45:33,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:45:33,859 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_0971.c[4045,4058] [2022-02-20 16:45:33,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:45:33,880 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:45:33,917 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_0971.c[4045,4058] [2022-02-20 16:45:33,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:45:33,939 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:45:33,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:33 WrapperNode [2022-02-20 16:45:33,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:45:33,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:45:33,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:45:33,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:45:33,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:33" (1/1) ... [2022-02-20 16:45:33,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:33" (1/1) ... [2022-02-20 16:45:34,003 INFO L137 Inliner]: procedures = 20, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 206 [2022-02-20 16:45:34,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:45:34,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:45:34,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:45:34,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:45:34,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:33" (1/1) ... [2022-02-20 16:45:34,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:33" (1/1) ... [2022-02-20 16:45:34,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:33" (1/1) ... [2022-02-20 16:45:34,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:33" (1/1) ... [2022-02-20 16:45:34,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:33" (1/1) ... [2022-02-20 16:45:34,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:33" (1/1) ... [2022-02-20 16:45:34,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:33" (1/1) ... [2022-02-20 16:45:34,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:45:34,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:45:34,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:45:34,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:45:34,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:33" (1/1) ... [2022-02-20 16:45:34,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:45:34,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:45:34,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:45:34,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:45:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:45:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:45:34,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:45:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-02-20 16:45:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-02-20 16:45:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:45:34,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:45:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-02-20 16:45:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-02-20 16:45:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:45:34,227 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:45:34,229 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:45:52,108 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:45:52,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:45:52,113 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-02-20 16:45:52,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:52 BoogieIcfgContainer [2022-02-20 16:45:52,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:45:52,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:45:52,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:45:52,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:45:52,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:45:33" (1/3) ... [2022-02-20 16:45:52,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d92d9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:52, skipping insertion in model container [2022-02-20 16:45:52,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:33" (2/3) ... [2022-02-20 16:45:52,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d92d9bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:52, skipping insertion in model container [2022-02-20 16:45:52,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:52" (3/3) ... [2022-02-20 16:45:52,119 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2022-02-20 16:45:52,122 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:45:52,123 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:45:52,159 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:45:52,164 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:45:52,164 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:45:52,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:52,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 16:45:52,178 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:45:52,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:45:52,178 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:45:52,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:45:52,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2022-02-20 16:45:52,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:45:52,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949693389] [2022-02-20 16:45:52,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:45:52,191 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:45:52,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:45:52,193 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 16:45:52,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:45:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:52,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 16:45:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:52,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:45:52,790 INFO L290 TraceCheckUtils]: 0: Hoare triple {47#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(20bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32);~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE());~two25_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~ivln10_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.43429449201));~log10_2hi_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.30102920532));~log10_2lo_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 7.9034151668E-7));~zero~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {47#true} is VALID [2022-02-20 16:45:52,790 INFO L290 TraceCheckUtils]: 1: Hoare triple {47#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret11#1, main_#t~ret12#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~FLOAT(), ~Pluszero~FLOAT());assume { :begin_inline___ieee754_log10f } true;__ieee754_log10f_#in~x#1 := main_~x~0#1;havoc __ieee754_log10f_#res#1;havoc __ieee754_log10f_#t~mem7#1, __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, __ieee754_log10f_#t~mem8#1, __ieee754_log10f_~#gf_u~3#1.base, __ieee754_log10f_~#gf_u~3#1.offset, __ieee754_log10f_#t~mem9#1, __ieee754_log10f_~#sf_u~1#1.base, __ieee754_log10f_~#sf_u~1#1.offset, __ieee754_log10f_#t~ret10#1, __ieee754_log10f_~x#1, __ieee754_log10f_~y~0#1, __ieee754_log10f_~z~1#1, __ieee754_log10f_~i~1#1, __ieee754_log10f_~k~1#1, __ieee754_log10f_~hx~0#1;__ieee754_log10f_~x#1 := __ieee754_log10f_#in~x#1;havoc __ieee754_log10f_~y~0#1;havoc __ieee754_log10f_~z~1#1;havoc __ieee754_log10f_~i~1#1;havoc __ieee754_log10f_~k~1#1;havoc __ieee754_log10f_~hx~0#1; {47#true} is VALID [2022-02-20 16:45:52,792 INFO L290 TraceCheckUtils]: 2: Hoare triple {47#true} assume !true; {48#false} is VALID [2022-02-20 16:45:52,792 INFO L290 TraceCheckUtils]: 3: Hoare triple {48#false} __ieee754_log10f_~k~1#1 := 0bv32; {48#false} is VALID [2022-02-20 16:45:52,792 INFO L290 TraceCheckUtils]: 4: Hoare triple {48#false} assume 0bv32 == ~bvand32(2147483647bv32, __ieee754_log10f_~hx~0#1);__ieee754_log10f_#res#1 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~two25_log10~0), ~zero~0); {48#false} is VALID [2022-02-20 16:45:52,792 INFO L290 TraceCheckUtils]: 5: Hoare triple {48#false} main_#t~ret11#1 := __ieee754_log10f_#res#1;assume { :end_inline___ieee754_log10f } true;main_~res~0#1 := main_#t~ret11#1;havoc main_#t~ret11#1;assume { :begin_inline_isnan_float } true;isnan_float_#in~x#1 := main_~res~0#1;havoc isnan_float_#res#1;havoc isnan_float_~x#1;isnan_float_~x#1 := isnan_float_#in~x#1;isnan_float_#res#1 := (if !~fp.eq~FLOAT(isnan_float_~x#1, isnan_float_~x#1) then 1bv32 else 0bv32); {48#false} is VALID [2022-02-20 16:45:52,793 INFO L290 TraceCheckUtils]: 6: Hoare triple {48#false} main_#t~ret12#1 := isnan_float_#res#1;assume { :end_inline_isnan_float } true; {48#false} is VALID [2022-02-20 16:45:52,793 INFO L290 TraceCheckUtils]: 7: Hoare triple {48#false} assume 0bv32 == main_#t~ret12#1;havoc main_#t~ret12#1; {48#false} is VALID [2022-02-20 16:45:52,793 INFO L290 TraceCheckUtils]: 8: Hoare triple {48#false} assume !false; {48#false} is VALID [2022-02-20 16:45:52,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:45:52,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:45:52,794 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:45:52,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949693389] [2022-02-20 16:45:52,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949693389] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:45:52,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:45:52,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:45:52,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121876276] [2022-02-20 16:45:52,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:45:52,801 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 16:45:52,802 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:45:52,804 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:52,930 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:52,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:45:52,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:45:52,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:45:52,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:52,946 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:12,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:46:12,931 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2022-02-20 16:46:12,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:46:12,931 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 16:46:12,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:46:12,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:12,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 140 transitions. [2022-02-20 16:46:12,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:12,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 140 transitions. [2022-02-20 16:46:12,942 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 140 transitions. [2022-02-20 16:46:16,669 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 140 edges. 140 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:46:16,676 INFO L225 Difference]: With dead ends: 86 [2022-02-20 16:46:16,676 INFO L226 Difference]: Without dead ends: 41 [2022-02-20 16:46:16,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:46:16,680 INFO L933 BasicCegarLoop]: 58 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, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:46:16,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:46:16,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-02-20 16:46:16,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-02-20 16:46:16,701 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:46:16,701 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:16,702 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:16,703 INFO L87 Difference]: Start difference. First operand 41 states. Second operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:16,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:46:16,705 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions. [2022-02-20 16:46:16,705 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2022-02-20 16:46:16,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:46:16,706 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:46:16,706 INFO L74 IsIncluded]: Start isIncluded. First operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 41 states. [2022-02-20 16:46:16,707 INFO L87 Difference]: Start difference. First operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 41 states. [2022-02-20 16:46:16,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:46:16,709 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions. [2022-02-20 16:46:16,709 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2022-02-20 16:46:16,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:46:16,710 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:46:16,710 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:46:16,710 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:46:16,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:16,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2022-02-20 16:46:16,714 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2022-02-20 16:46:16,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:46:16,714 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2022-02-20 16:46:16,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:16,714 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2022-02-20 16:46:16,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-02-20 16:46:16,715 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:46:16,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:46:16,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 16:46:16,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:46:16,926 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:46:16,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:46:16,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2022-02-20 16:46:16,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:46:16,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108831414] [2022-02-20 16:46:16,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:46:16,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:46:16,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:46:16,929 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 16:46:16,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-02-20 16:46:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:46:17,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-20 16:46:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:46:17,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:46:17,642 INFO L290 TraceCheckUtils]: 0: Hoare triple {313#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(20bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32);~ln2_hi_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.69313812256));~ln2_lo_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 9.0580006145E-6));~two25_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~Lg1_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.66666668653));~Lg2_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.40000000596));~Lg3_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.28571429849));~Lg4_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.22222198546));~Lg5_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1818357259));~Lg6_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.15313838422));~Lg7_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.1479819864));~zero_log~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE());~two25_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 3.3554432E7));~ivln10_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.43429449201));~log10_2hi_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 0.30102920532));~log10_2lo_log10~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 7.9034151668E-7));~zero~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE()); {313#true} is VALID [2022-02-20 16:46:17,644 INFO L290 TraceCheckUtils]: 1: Hoare triple {313#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret11#1, main_#t~ret12#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~FLOAT(), ~Pluszero~FLOAT());assume { :begin_inline___ieee754_log10f } true;__ieee754_log10f_#in~x#1 := main_~x~0#1;havoc __ieee754_log10f_#res#1;havoc __ieee754_log10f_#t~mem7#1, __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, __ieee754_log10f_#t~mem8#1, __ieee754_log10f_~#gf_u~3#1.base, __ieee754_log10f_~#gf_u~3#1.offset, __ieee754_log10f_#t~mem9#1, __ieee754_log10f_~#sf_u~1#1.base, __ieee754_log10f_~#sf_u~1#1.offset, __ieee754_log10f_#t~ret10#1, __ieee754_log10f_~x#1, __ieee754_log10f_~y~0#1, __ieee754_log10f_~z~1#1, __ieee754_log10f_~i~1#1, __ieee754_log10f_~k~1#1, __ieee754_log10f_~hx~0#1;__ieee754_log10f_~x#1 := __ieee754_log10f_#in~x#1;havoc __ieee754_log10f_~y~0#1;havoc __ieee754_log10f_~z~1#1;havoc __ieee754_log10f_~i~1#1;havoc __ieee754_log10f_~k~1#1;havoc __ieee754_log10f_~hx~0#1; {321#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_log10f_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:46:17,647 INFO L290 TraceCheckUtils]: 2: Hoare triple {321#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_log10f_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} call __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_log10f_~x#1, __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, 4bv32);call __ieee754_log10f_#t~mem7#1 := read~intINTTYPE4(__ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset, 4bv32);__ieee754_log10f_~hx~0#1 := __ieee754_log10f_#t~mem7#1;havoc __ieee754_log10f_#t~mem7#1;call ULTIMATE.dealloc(__ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset);havoc __ieee754_log10f_~#gf_u~2#1.base, __ieee754_log10f_~#gf_u~2#1.offset; {325#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_log10f_~hx~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:46:17,648 INFO L290 TraceCheckUtils]: 3: Hoare triple {325#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_log10f_~hx~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} goto; {325#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_log10f_~hx~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:46:17,648 INFO L290 TraceCheckUtils]: 4: Hoare triple {325#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_log10f_~hx~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} __ieee754_log10f_~k~1#1 := 0bv32; {325#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_log10f_~hx~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:46:17,797 INFO L290 TraceCheckUtils]: 5: Hoare triple {325#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_log10f_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_log10f_~hx~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} assume 0bv32 == ~bvand32(2147483647bv32, __ieee754_log10f_~hx~0#1);__ieee754_log10f_#res#1 := ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~two25_log10~0), ~zero~0); {314#false} is VALID [2022-02-20 16:46:17,798 INFO L290 TraceCheckUtils]: 6: Hoare triple {314#false} main_#t~ret11#1 := __ieee754_log10f_#res#1;assume { :end_inline___ieee754_log10f } true;main_~res~0#1 := main_#t~ret11#1;havoc main_#t~ret11#1;assume { :begin_inline_isnan_float } true;isnan_float_#in~x#1 := main_~res~0#1;havoc isnan_float_#res#1;havoc isnan_float_~x#1;isnan_float_~x#1 := isnan_float_#in~x#1;isnan_float_#res#1 := (if !~fp.eq~FLOAT(isnan_float_~x#1, isnan_float_~x#1) then 1bv32 else 0bv32); {314#false} is VALID [2022-02-20 16:46:17,798 INFO L290 TraceCheckUtils]: 7: Hoare triple {314#false} main_#t~ret12#1 := isnan_float_#res#1;assume { :end_inline_isnan_float } true; {314#false} is VALID [2022-02-20 16:46:17,798 INFO L290 TraceCheckUtils]: 8: Hoare triple {314#false} assume 0bv32 == main_#t~ret12#1;havoc main_#t~ret12#1; {314#false} is VALID [2022-02-20 16:46:17,798 INFO L290 TraceCheckUtils]: 9: Hoare triple {314#false} assume !false; {314#false} is VALID [2022-02-20 16:46:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:46:17,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:46:17,799 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:46:17,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108831414] [2022-02-20 16:46:17,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108831414] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:46:17,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:46:17,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-20 16:46:17,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178277296] [2022-02-20 16:46:17,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:46:17,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-02-20 16:46:17,800 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:46:17,800 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:46:17,937 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:46:17,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:46:17,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:46:17,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:46:17,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:46:17,938 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)