./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0971.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_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-?-6c24879 [2022-07-12 03:12:08,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 03:12:08,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 03:12:08,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 03:12:08,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 03:12:08,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 03:12:08,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 03:12:08,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 03:12:08,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 03:12:08,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 03:12:08,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 03:12:08,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 03:12:08,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 03:12:08,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 03:12:08,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 03:12:08,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 03:12:08,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 03:12:08,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 03:12:08,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 03:12:08,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 03:12:08,341 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 03:12:08,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 03:12:08,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 03:12:08,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 03:12:08,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 03:12:08,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 03:12:08,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 03:12:08,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 03:12:08,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 03:12:08,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 03:12:08,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 03:12:08,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 03:12:08,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 03:12:08,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 03:12:08,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 03:12:08,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 03:12:08,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 03:12:08,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 03:12:08,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 03:12:08,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 03:12:08,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 03:12:08,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 03:12:08,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 03:12:08,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 03:12:08,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 03:12:08,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 03:12:08,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 03:12:08,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 03:12:08,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 03:12:08,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 03:12:08,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 03:12:08,376 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 03:12:08,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 03:12:08,376 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 03:12:08,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 03:12:08,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 03:12:08,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 03:12:08,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 03:12:08,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 03:12:08,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 03:12:08,377 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 03:12:08,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 03:12:08,378 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 03:12:08,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 03:12:08,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 03:12:08,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 03:12:08,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 03:12:08,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 03:12:08,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 03:12:08,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 03:12:08,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 03:12:08,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 03:12:08,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 03:12:08,380 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 03:12:08,381 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 03:12:08,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 03:12:08,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b1687984206fd71420342d8c308fb8f0bb6aa8eb322759ead9cb78bc76e256a [2022-07-12 03:12:08,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 03:12:08,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 03:12:08,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 03:12:08,576 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 03:12:08,577 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 03:12:08,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2022-07-12 03:12:08,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98d0358f/53d2ef51cde346da8ca5623cd4966eb8/FLAG73d9b8f81 [2022-07-12 03:12:09,005 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 03:12:09,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2022-07-12 03:12:09,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98d0358f/53d2ef51cde346da8ca5623cd4966eb8/FLAG73d9b8f81 [2022-07-12 03:12:09,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b98d0358f/53d2ef51cde346da8ca5623cd4966eb8 [2022-07-12 03:12:09,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 03:12:09,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 03:12:09,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 03:12:09,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 03:12:09,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 03:12:09,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:12:09" (1/1) ... [2022-07-12 03:12:09,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10154009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:09, skipping insertion in model container [2022-07-12 03:12:09,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:12:09" (1/1) ... [2022-07-12 03:12:09,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 03:12:09,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 03:12:09,616 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] [2022-07-12 03:12:09,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 03:12:09,630 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 03:12:09,656 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] [2022-07-12 03:12:09,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 03:12:09,666 INFO L208 MainTranslator]: Completed translation [2022-07-12 03:12:09,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:09 WrapperNode [2022-07-12 03:12:09,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 03:12:09,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 03:12:09,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 03:12:09,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 03:12:09,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:09" (1/1) ... [2022-07-12 03:12:09,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:09" (1/1) ... [2022-07-12 03:12:09,706 INFO L137 Inliner]: procedures = 17, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 230 [2022-07-12 03:12:09,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 03:12:09,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 03:12:09,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 03:12:09,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 03:12:09,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:09" (1/1) ... [2022-07-12 03:12:09,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:09" (1/1) ... [2022-07-12 03:12:09,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:09" (1/1) ... [2022-07-12 03:12:09,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:09" (1/1) ... [2022-07-12 03:12:09,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:09" (1/1) ... [2022-07-12 03:12:09,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:09" (1/1) ... [2022-07-12 03:12:09,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:09" (1/1) ... [2022-07-12 03:12:09,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 03:12:09,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 03:12:09,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 03:12:09,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 03:12:09,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:09" (1/1) ... [2022-07-12 03:12:09,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 03:12:09,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 03:12:09,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 03:12:09,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 03:12:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 03:12:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 03:12:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 03:12:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-12 03:12:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 03:12:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-12 03:12:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 03:12:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 03:12:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 03:12:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 03:12:09,899 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 03:12:09,900 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 03:12:10,184 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 03:12:10,189 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 03:12:10,190 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-07-12 03:12:10,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:12:10 BoogieIcfgContainer [2022-07-12 03:12:10,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 03:12:10,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 03:12:10,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 03:12:10,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 03:12:10,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:12:09" (1/3) ... [2022-07-12 03:12:10,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285c6e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:12:10, skipping insertion in model container [2022-07-12 03:12:10,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:09" (2/3) ... [2022-07-12 03:12:10,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285c6e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:12:10, skipping insertion in model container [2022-07-12 03:12:10,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:12:10" (3/3) ... [2022-07-12 03:12:10,198 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2022-07-12 03:12:10,208 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 03:12:10,208 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 03:12:10,256 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 03:12:10,261 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c99569b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5102c092 [2022-07-12 03:12:10,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 03:12:10,277 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) [2022-07-12 03:12:10,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-12 03:12:10,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 03:12:10,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 03:12:10,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 03:12:10,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 03:12:10,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1900902288, now seen corresponding path program 1 times [2022-07-12 03:12:10,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 03:12:10,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583643481] [2022-07-12 03:12:10,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 03:12:10,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 03:12:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 03:12:10,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 03:12:10,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 03:12:10,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583643481] [2022-07-12 03:12:10,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583643481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 03:12:10,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 03:12:10,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 03:12:10,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295221060] [2022-07-12 03:12:10,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 03:12:10,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 03:12:10,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 03:12:10,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 03:12:10,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 03:12:10,484 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) [2022-07-12 03:12:10,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 03:12:10,515 INFO L93 Difference]: Finished difference Result 104 states and 174 transitions. [2022-07-12 03:12:10,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 03:12:10,517 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 [2022-07-12 03:12:10,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 03:12:10,525 INFO L225 Difference]: With dead ends: 104 [2022-07-12 03:12:10,526 INFO L226 Difference]: Without dead ends: 50 [2022-07-12 03:12:10,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 03:12:10,533 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 03:12:10,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 03:12:10,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-07-12 03:12:10,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-07-12 03:12:10,564 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) [2022-07-12 03:12:10,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2022-07-12 03:12:10,568 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 9 [2022-07-12 03:12:10,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 03:12:10,569 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2022-07-12 03:12:10,569 INFO L496 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) [2022-07-12 03:12:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2022-07-12 03:12:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-12 03:12:10,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 03:12:10,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 03:12:10,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 03:12:10,571 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 03:12:10,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 03:12:10,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1487448525, now seen corresponding path program 1 times [2022-07-12 03:12:10,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 03:12:10,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203211115] [2022-07-12 03:12:10,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 03:12:10,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 03:12:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 03:12:10,638 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 03:12:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 03:12:10,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 03:12:10,722 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 03:12:10,725 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 03:12:10,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 03:12:10,734 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-12 03:12:10,738 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 03:12:10,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 03:12:10 BoogieIcfgContainer [2022-07-12 03:12:10,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 03:12:10,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 03:12:10,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 03:12:10,786 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 03:12:10,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:12:10" (3/4) ... [2022-07-12 03:12:10,789 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 03:12:10,789 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 03:12:10,790 INFO L158 Benchmark]: Toolchain (without parser) took 1346.97ms. Allocated memory is still 121.6MB. Free memory was 88.4MB in the beginning and 42.3MB in the end (delta: 46.1MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2022-07-12 03:12:10,791 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory was 46.3MB in the beginning and 46.2MB in the end (delta: 49.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 03:12:10,792 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.54ms. Allocated memory is still 121.6MB. Free memory was 88.0MB in the beginning and 94.3MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 03:12:10,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.02ms. Allocated memory is still 121.6MB. Free memory was 94.3MB in the beginning and 91.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 03:12:10,795 INFO L158 Benchmark]: Boogie Preprocessor took 48.09ms. Allocated memory is still 121.6MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 03:12:10,796 INFO L158 Benchmark]: RCFGBuilder took 435.42ms. Allocated memory is still 121.6MB. Free memory was 89.7MB in the beginning and 71.2MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-12 03:12:10,796 INFO L158 Benchmark]: TraceAbstraction took 592.54ms. Allocated memory is still 121.6MB. Free memory was 70.8MB in the beginning and 42.8MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-07-12 03:12:10,797 INFO L158 Benchmark]: Witness Printer took 3.41ms. Allocated memory is still 121.6MB. Free memory was 42.8MB in the beginning and 42.3MB in the end (delta: 411.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 03:12:10,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory was 46.3MB in the beginning and 46.2MB in the end (delta: 49.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.54ms. Allocated memory is still 121.6MB. Free memory was 88.0MB in the beginning and 94.3MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.02ms. Allocated memory is still 121.6MB. Free memory was 94.3MB in the beginning and 91.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.09ms. Allocated memory is still 121.6MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 435.42ms. Allocated memory is still 121.6MB. Free memory was 89.7MB in the beginning and 71.2MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 592.54ms. Allocated memory is still 121.6MB. Free memory was 70.8MB in the beginning and 42.8MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 3.41ms. Allocated memory is still 121.6MB. Free memory was 42.8MB in the beginning and 42.3MB in the end (delta: 411.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 73 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 0.1s 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 [2022-07-12 03:12:10,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_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-?-6c24879 [2022-07-12 03:12:12,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 03:12:12,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 03:12:12,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 03:12:12,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 03:12:12,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 03:12:12,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 03:12:12,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 03:12:12,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 03:12:12,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 03:12:12,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 03:12:12,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 03:12:12,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 03:12:12,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 03:12:12,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 03:12:12,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 03:12:12,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 03:12:12,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 03:12:12,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 03:12:12,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 03:12:12,577 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 03:12:12,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 03:12:12,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 03:12:12,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 03:12:12,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 03:12:12,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 03:12:12,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 03:12:12,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 03:12:12,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 03:12:12,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 03:12:12,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 03:12:12,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 03:12:12,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 03:12:12,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 03:12:12,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 03:12:12,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 03:12:12,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 03:12:12,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 03:12:12,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 03:12:12,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 03:12:12,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 03:12:12,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 03:12:12,599 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 03:12:12,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 03:12:12,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 03:12:12,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 03:12:12,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 03:12:12,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 03:12:12,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 03:12:12,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 03:12:12,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 03:12:12,629 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 03:12:12,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 03:12:12,630 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 03:12:12,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 03:12:12,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 03:12:12,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 03:12:12,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 03:12:12,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 03:12:12,631 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 03:12:12,632 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 03:12:12,632 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 03:12:12,632 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 03:12:12,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 03:12:12,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 03:12:12,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 03:12:12,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 03:12:12,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 03:12:12,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 03:12:12,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 03:12:12,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 03:12:12,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 03:12:12,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 03:12:12,634 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 03:12:12,634 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 03:12:12,634 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 03:12:12,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 03:12:12,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 03:12:12,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 03:12:12,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b1687984206fd71420342d8c308fb8f0bb6aa8eb322759ead9cb78bc76e256a [2022-07-12 03:12:12,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 03:12:12,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 03:12:12,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 03:12:12,937 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 03:12:12,938 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 03:12:12,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2022-07-12 03:12:13,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b46d6170/06bddccff37947d79fe32c021794863b/FLAG7e3020bef [2022-07-12 03:12:13,484 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 03:12:13,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2022-07-12 03:12:13,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b46d6170/06bddccff37947d79fe32c021794863b/FLAG7e3020bef [2022-07-12 03:12:13,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b46d6170/06bddccff37947d79fe32c021794863b [2022-07-12 03:12:13,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 03:12:13,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 03:12:13,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 03:12:13,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 03:12:13,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 03:12:13,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:12:13" (1/1) ... [2022-07-12 03:12:13,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9572c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:13, skipping insertion in model container [2022-07-12 03:12:13,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:12:13" (1/1) ... [2022-07-12 03:12:13,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 03:12:13,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 03:12:14,094 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] [2022-07-12 03:12:14,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 03:12:14,110 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 03:12:14,132 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] [2022-07-12 03:12:14,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 03:12:14,148 INFO L208 MainTranslator]: Completed translation [2022-07-12 03:12:14,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:14 WrapperNode [2022-07-12 03:12:14,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 03:12:14,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 03:12:14,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 03:12:14,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 03:12:14,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:14" (1/1) ... [2022-07-12 03:12:14,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:14" (1/1) ... [2022-07-12 03:12:14,197 INFO L137 Inliner]: procedures = 20, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 206 [2022-07-12 03:12:14,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 03:12:14,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 03:12:14,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 03:12:14,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 03:12:14,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:14" (1/1) ... [2022-07-12 03:12:14,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:14" (1/1) ... [2022-07-12 03:12:14,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:14" (1/1) ... [2022-07-12 03:12:14,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:14" (1/1) ... [2022-07-12 03:12:14,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:14" (1/1) ... [2022-07-12 03:12:14,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:14" (1/1) ... [2022-07-12 03:12:14,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:14" (1/1) ... [2022-07-12 03:12:14,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 03:12:14,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 03:12:14,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 03:12:14,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 03:12:14,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:14" (1/1) ... [2022-07-12 03:12:14,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 03:12:14,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 03:12:14,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 03:12:14,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 03:12:14,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 03:12:14,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 03:12:14,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 03:12:14,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-12 03:12:14,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 03:12:14,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 03:12:14,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 03:12:14,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-12 03:12:14,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 03:12:14,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 03:12:14,438 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 03:12:14,439 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 03:12:38,998 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 03:12:39,002 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 03:12:39,003 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-07-12 03:12:39,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:12:39 BoogieIcfgContainer [2022-07-12 03:12:39,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 03:12:39,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 03:12:39,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 03:12:39,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 03:12:39,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:12:13" (1/3) ... [2022-07-12 03:12:39,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e17e42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:12:39, skipping insertion in model container [2022-07-12 03:12:39,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:12:14" (2/3) ... [2022-07-12 03:12:39,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e17e42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:12:39, skipping insertion in model container [2022-07-12 03:12:39,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:12:39" (3/3) ... [2022-07-12 03:12:39,010 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2022-07-12 03:12:39,020 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 03:12:39,020 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 03:12:39,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 03:12:39,070 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2d20b9d0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@28d0182a [2022-07-12 03:12:39,070 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 03:12:39,073 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) [2022-07-12 03:12:39,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-12 03:12:39,077 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 03:12:39,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 03:12:39,078 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 03:12:39,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 03:12:39,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2022-07-12 03:12:39,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 03:12:39,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927090303] [2022-07-12 03:12:39,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 03:12:39,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 03:12:39,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 03:12:39,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 03:12:39,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 03:12:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 03:12:39,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 03:12:39,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 03:12:39,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 03:12:39,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 03:12:39,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 03:12:39,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927090303] [2022-07-12 03:12:39,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927090303] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 03:12:39,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 03:12:39,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 03:12:39,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96461815] [2022-07-12 03:12:39,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 03:12:39,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 03:12:39,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 03:12:39,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 03:12:39,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 03:12:39,654 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) [2022-07-12 03:12:39,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 03:12:39,669 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2022-07-12 03:12:39,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 03:12:39,671 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 [2022-07-12 03:12:39,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 03:12:39,678 INFO L225 Difference]: With dead ends: 86 [2022-07-12 03:12:39,678 INFO L226 Difference]: Without dead ends: 41 [2022-07-12 03:12:39,681 INFO L412 NwaCegarLoop]: 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 [2022-07-12 03:12:39,684 INFO L413 NwaCegarLoop]: 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 [2022-07-12 03:12:39,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 03:12:39,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-07-12 03:12:39,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-07-12 03:12:39,716 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) [2022-07-12 03:12:39,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2022-07-12 03:12:39,719 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2022-07-12 03:12:39,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 03:12:39,719 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2022-07-12 03:12:39,720 INFO L496 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) [2022-07-12 03:12:39,720 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2022-07-12 03:12:39,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-12 03:12:39,720 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 03:12:39,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 03:12:39,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 03:12:39,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 03:12:39,945 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 03:12:39,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 03:12:39,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2022-07-12 03:12:39,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 03:12:39,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047216473] [2022-07-12 03:12:39,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 03:12:39,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 03:12:39,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 03:12:39,952 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 03:12:39,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 03:12:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 03:12:40,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 03:12:40,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 03:12:40,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 03:12:40,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 03:12:40,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 03:12:40,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047216473] [2022-07-12 03:12:40,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047216473] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 03:12:40,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 03:12:40,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 03:12:40,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094713147] [2022-07-12 03:12:40,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 03:12:40,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 03:12:40,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 03:12:40,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 03:12:40,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 03:12:40,802 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) [2022-07-12 03:12:40,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 03:12:40,808 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2022-07-12 03:12:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 03:12:40,808 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 [2022-07-12 03:12:40,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 03:12:40,809 INFO L225 Difference]: With dead ends: 46 [2022-07-12 03:12:40,809 INFO L226 Difference]: Without dead ends: 41 [2022-07-12 03:12:40,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 03:12:40,810 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 03:12:40,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-07-12 03:12:40,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-07-12 03:12:40,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-07-12 03:12:40,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.35) internal successors, (54), 40 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 03:12:40,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2022-07-12 03:12:40,814 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 10 [2022-07-12 03:12:40,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 03:12:40,814 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2022-07-12 03:12:40,815 INFO L496 AbstractCegarLoop]: INTERPOLANT 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) [2022-07-12 03:12:40,815 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2022-07-12 03:12:40,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-12 03:12:40,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 03:12:40,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 03:12:40,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 03:12:41,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 03:12:41,016 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 03:12:41,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 03:12:41,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2022-07-12 03:12:41,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 03:12:41,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475564274] [2022-07-12 03:12:41,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 03:12:41,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 03:12:41,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 03:12:41,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 03:12:41,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 03:12:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 03:12:41,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-12 03:12:41,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 03:12:42,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 03:12:42,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 03:12:42,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 03:12:42,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475564274] [2022-07-12 03:12:42,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475564274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 03:12:42,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 03:12:42,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 03:12:42,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973038940] [2022-07-12 03:12:42,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 03:12:42,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 03:12:42,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 03:12:42,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 03:12:42,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 03:12:42,241 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 03:12:47,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-12 03:12:50,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-12 03:12:53,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-12 03:12:56,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-12 03:12:58,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-12 03:13:00,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-12 03:13:02,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-12 03:13:04,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-12 03:13:06,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-12 03:13:06,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 03:13:06,408 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2022-07-12 03:13:06,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 03:13:06,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-12 03:13:06,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 03:13:06,465 INFO L225 Difference]: With dead ends: 47 [2022-07-12 03:13:06,465 INFO L226 Difference]: Without dead ends: 42 [2022-07-12 03:13:06,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-12 03:13:06,466 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 41 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-07-12 03:13:06,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 170 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 7 Unknown, 0 Unchecked, 23.7s Time] [2022-07-12 03:13:06,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-07-12 03:13:06,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2022-07-12 03:13:06,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.3) internal successors, (52), 40 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 03:13:06,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2022-07-12 03:13:06,470 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 11 [2022-07-12 03:13:06,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 03:13:06,470 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2022-07-12 03:13:06,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 03:13:06,470 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2022-07-12 03:13:06,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-12 03:13:06,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 03:13:06,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 03:13:06,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 03:13:06,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 03:13:06,680 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 03:13:06,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 03:13:06,681 INFO L85 PathProgramCache]: Analyzing trace with hash -256490092, now seen corresponding path program 1 times [2022-07-12 03:13:06,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 03:13:06,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599184832] [2022-07-12 03:13:06,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 03:13:06,682 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 03:13:06,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 03:13:06,686 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 03:13:06,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 03:13:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 03:13:07,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 03:13:07,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 03:13:07,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 03:13:07,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 03:13:07,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 03:13:07,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599184832] [2022-07-12 03:13:07,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1599184832] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 03:13:07,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 03:13:07,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 03:13:07,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270426936] [2022-07-12 03:13:07,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 03:13:07,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 03:13:07,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 03:13:07,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 03:13:07,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 03:13:07,796 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 03:13:07,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 03:13:07,798 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2022-07-12 03:13:07,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 03:13:07,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2022-07-12 03:13:07,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 03:13:07,798 INFO L225 Difference]: With dead ends: 41 [2022-07-12 03:13:07,798 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 03:13:07,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 03:13:07,800 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 03:13:07,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-07-12 03:13:07,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 03:13:07,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 03:13:07,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 03:13:07,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 03:13:07,801 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-07-12 03:13:07,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 03:13:07,801 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 03:13:07,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 03:13:07,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 03:13:07,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 03:13:07,804 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 03:13:07,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 03:13:08,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 03:13:08,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 03:13:08,414 INFO L899 garLoopResultBuilder]: For program point L159(lines 159 162) no Hoare annotation was computed. [2022-07-12 03:13:08,414 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 126 130) no Hoare annotation was computed. [2022-07-12 03:13:08,414 INFO L895 garLoopResultBuilder]: At program point L126-2(lines 126 130) the Hoare annotation is: false [2022-07-12 03:13:08,414 INFO L899 garLoopResultBuilder]: For program point L110-1(lines 110 114) no Hoare annotation was computed. [2022-07-12 03:13:08,415 INFO L895 garLoopResultBuilder]: At program point L110-2(lines 110 114) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= |ULTIMATE.start___ieee754_log10f_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-12 03:13:08,415 INFO L899 garLoopResultBuilder]: For program point L110-3(lines 110 114) no Hoare annotation was computed. [2022-07-12 03:13:08,415 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2022-07-12 03:13:08,415 INFO L899 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2022-07-12 03:13:08,415 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 03:13:08,415 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 03:13:08,415 INFO L899 garLoopResultBuilder]: For program point L119(lines 119 120) no Hoare annotation was computed. [2022-07-12 03:13:08,415 INFO L899 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2022-07-12 03:13:08,416 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2022-07-12 03:13:08,416 INFO L895 garLoopResultBuilder]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2022-07-12 03:13:08,416 INFO L899 garLoopResultBuilder]: For program point L136-3(lines 136 140) no Hoare annotation was computed. [2022-07-12 03:13:08,416 INFO L895 garLoopResultBuilder]: At program point L95(lines 21 97) the Hoare annotation is: false [2022-07-12 03:13:08,416 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 46) no Hoare annotation was computed. [2022-07-12 03:13:08,416 INFO L899 garLoopResultBuilder]: For program point L38-1(lines 38 46) no Hoare annotation was computed. [2022-07-12 03:13:08,416 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 122) no Hoare annotation was computed. [2022-07-12 03:13:08,416 INFO L895 garLoopResultBuilder]: At program point L146(line 146) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res#1|) (= |ULTIMATE.start___ieee754_log10f_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)) [2022-07-12 03:13:08,417 INFO L902 garLoopResultBuilder]: At program point L164(lines 148 165) the Hoare annotation is: true [2022-07-12 03:13:08,417 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 33) no Hoare annotation was computed. [2022-07-12 03:13:08,417 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 03:13:08,417 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 131) no Hoare annotation was computed. [2022-07-12 03:13:08,417 INFO L899 garLoopResultBuilder]: For program point L123-1(lines 123 131) no Hoare annotation was computed. [2022-07-12 03:13:08,417 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 73) no Hoare annotation was computed. [2022-07-12 03:13:08,417 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2022-07-12 03:13:08,417 INFO L899 garLoopResultBuilder]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2022-07-12 03:13:08,418 INFO L895 garLoopResultBuilder]: At program point L41-2(lines 41 45) the Hoare annotation is: false [2022-07-12 03:13:08,418 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 03:13:08,418 INFO L899 garLoopResultBuilder]: For program point L58(lines 58 65) no Hoare annotation was computed. [2022-07-12 03:13:08,418 INFO L899 garLoopResultBuilder]: For program point L25-1(lines 25 29) no Hoare annotation was computed. [2022-07-12 03:13:08,418 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 29) the Hoare annotation is: false [2022-07-12 03:13:08,418 INFO L899 garLoopResultBuilder]: For program point L25-3(lines 25 29) no Hoare annotation was computed. [2022-07-12 03:13:08,418 INFO L899 garLoopResultBuilder]: For program point L50-1(lines 50 54) no Hoare annotation was computed. [2022-07-12 03:13:08,418 INFO L895 garLoopResultBuilder]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2022-07-12 03:13:08,419 INFO L899 garLoopResultBuilder]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2022-07-12 03:13:08,419 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 72) no Hoare annotation was computed. [2022-07-12 03:13:08,419 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 35) no Hoare annotation was computed. [2022-07-12 03:13:08,419 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 95) no Hoare annotation was computed. [2022-07-12 03:13:08,419 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 64) no Hoare annotation was computed. [2022-07-12 03:13:08,419 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 118) no Hoare annotation was computed. [2022-07-12 03:13:08,419 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 96) no Hoare annotation was computed. [2022-07-12 03:13:08,419 INFO L895 garLoopResultBuilder]: At program point L142(lines 106 143) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res#1|) (= |ULTIMATE.start___ieee754_log10f_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-12 03:13:08,422 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-12 03:13:08,423 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 03:13:08,432 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,433 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,433 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,433 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,433 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,433 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,435 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,436 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,436 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,439 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,439 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,439 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,440 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,440 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,441 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,441 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,441 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,441 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,442 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,442 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,442 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,442 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,442 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,442 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,442 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,443 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 03:13:08 BoogieIcfgContainer [2022-07-12 03:13:08,443 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 03:13:08,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 03:13:08,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 03:13:08,444 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 03:13:08,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:12:39" (3/4) ... [2022-07-12 03:13:08,447 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 03:13:08,461 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-07-12 03:13:08,463 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-12 03:13:08,463 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 03:13:08,463 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 03:13:08,480 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-12 03:13:08,480 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2022-07-12 03:13:08,500 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 03:13:08,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 03:13:08,501 INFO L158 Benchmark]: Toolchain (without parser) took 54638.49ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 43.6MB in the beginning and 59.6MB in the end (delta: -16.0MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-07-12 03:13:08,501 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 44.9MB in the beginning and 44.9MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 03:13:08,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.28ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 43.6MB in the end (delta: -194.7kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-12 03:13:08,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.12ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 41.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 03:13:08,502 INFO L158 Benchmark]: Boogie Preprocessor took 53.99ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 39.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 03:13:08,502 INFO L158 Benchmark]: RCFGBuilder took 24740.68ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 39.2MB in the beginning and 55.8MB in the end (delta: -16.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-07-12 03:13:08,502 INFO L158 Benchmark]: TraceAbstraction took 29437.76ms. Allocated memory is still 79.7MB. Free memory was 55.3MB in the beginning and 36.8MB in the end (delta: 18.5MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-07-12 03:13:08,503 INFO L158 Benchmark]: Witness Printer took 56.45ms. Allocated memory is still 79.7MB. Free memory was 36.8MB in the beginning and 59.6MB in the end (delta: -22.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-07-12 03:13:08,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 44.9MB in the beginning and 44.9MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.28ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 43.6MB in the end (delta: -194.7kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.12ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 41.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.99ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 39.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 24740.68ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 39.2MB in the beginning and 55.8MB in the end (delta: -16.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * TraceAbstraction took 29437.76ms. Allocated memory is still 79.7MB. Free memory was 55.3MB in the beginning and 36.8MB in the end (delta: 18.5MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Witness Printer took 56.45ms. Allocated memory is still 79.7MB. Free memory was 36.8MB in the beginning and 59.6MB in the end (delta: -22.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 160]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 23.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 376 SdHoareTripleChecker+Invalid, 23.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 23 IncrementalHoareTripleChecker+Unchecked, 226 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 150 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 89 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 10 QuantifiedInterpolants, 259 SizeOfPredicates, 22 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant [2022-07-12 03:13:08,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 106]: Loop Invariant [2022-07-12 03:13:08,515 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,515 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,515 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,515 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,516 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,516 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,516 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,516 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,516 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,516 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,516 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,517 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 110]: Loop Invariant [2022-07-12 03:13:08,517 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 03:13:08,517 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-07-12 03:13:08,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE