./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0971.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_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 8f280d01eb562e8c8261ac147082d6e8f78ef66f3849ff492be6220e1f9f04ed --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:35:30,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:35:30,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:35:30,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:35:30,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:35:30,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:35:30,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:35:30,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:35:30,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:35:30,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:35:30,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:35:30,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:35:30,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:35:30,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:35:30,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:35:30,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:35:30,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:35:30,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:35:30,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:35:30,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:35:30,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:35:30,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:35:30,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:35:30,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:35:30,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:35:30,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:35:30,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:35:30,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:35:30,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:35:30,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:35:30,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:35:30,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:35:30,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:35:30,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:35:30,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:35:30,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:35:30,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:35:30,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:35:30,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:35:30,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:35:30,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:35:30,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:35:30,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:35:30,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:35:30,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:35:30,475 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:35:30,476 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:35:30,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:35:30,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:35:30,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:35:30,476 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:35:30,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:35:30,477 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:35:30,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:35:30,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:35:30,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:35:30,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:35:30,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:35:30,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:35:30,478 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:35:30,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:35:30,478 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:35:30,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:35:30,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:35:30,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:35:30,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:35:30,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:35:30,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:35:30,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:35:30,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:35:30,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:35:30,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:35:30,481 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:35:30,481 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:35:30,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:35:30,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f280d01eb562e8c8261ac147082d6e8f78ef66f3849ff492be6220e1f9f04ed [2022-02-20 16:35:30,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:35:30,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:35:30,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:35:30,706 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:35:30,706 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:35:30,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2022-02-20 16:35:30,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11efa8930/2f6a3b1dfa344bbf93d5fa20985d1f52/FLAG6f96b8a05 [2022-02-20 16:35:31,109 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:35:31,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2022-02-20 16:35:31,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11efa8930/2f6a3b1dfa344bbf93d5fa20985d1f52/FLAG6f96b8a05 [2022-02-20 16:35:31,504 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11efa8930/2f6a3b1dfa344bbf93d5fa20985d1f52 [2022-02-20 16:35:31,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:35:31,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:35:31,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:35:31,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:35:31,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:35:31,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:35:31" (1/1) ... [2022-02-20 16:35:31,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18033a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:31, skipping insertion in model container [2022-02-20 16:35:31,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:35:31" (1/1) ... [2022-02-20 16:35:31,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:35:31,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:35:31,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0971.c[4582,4595] [2022-02-20 16:35:31,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:35:31,784 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:35:31,834 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/double_req_bl_0971.c[4582,4595] [2022-02-20 16:35:31,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:35:31,850 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:35:31,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:31 WrapperNode [2022-02-20 16:35:31,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:35:31,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:35:31,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:35:31,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:35:31,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:31" (1/1) ... [2022-02-20 16:35:31,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:31" (1/1) ... [2022-02-20 16:35:31,919 INFO L137 Inliner]: procedures = 18, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 240 [2022-02-20 16:35:31,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:35:31,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:35:31,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:35:31,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:35:31,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:31" (1/1) ... [2022-02-20 16:35:31,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:31" (1/1) ... [2022-02-20 16:35:31,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:31" (1/1) ... [2022-02-20 16:35:31,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:31" (1/1) ... [2022-02-20 16:35:31,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:31" (1/1) ... [2022-02-20 16:35:31,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:31" (1/1) ... [2022-02-20 16:35:31,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:31" (1/1) ... [2022-02-20 16:35:31,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:35:31,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:35:31,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:35:31,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:35:31,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:31" (1/1) ... [2022-02-20 16:35:31,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:35:31,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:35:31,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:35:32,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:35:32,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:35:32,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:35:32,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:35:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-20 16:35:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 16:35:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-20 16:35:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:35:32,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:35:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 16:35:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:35:32,085 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:35:32,086 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:35:32,580 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:35:32,587 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:35:32,588 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-02-20 16:35:32,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:35:32 BoogieIcfgContainer [2022-02-20 16:35:32,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:35:32,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:35:32,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:35:32,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:35:32,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:35:31" (1/3) ... [2022-02-20 16:35:32,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cdb986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:35:32, skipping insertion in model container [2022-02-20 16:35:32,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:31" (2/3) ... [2022-02-20 16:35:32,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cdb986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:35:32, skipping insertion in model container [2022-02-20 16:35:32,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:35:32" (3/3) ... [2022-02-20 16:35:32,596 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0971.c [2022-02-20 16:35:32,603 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:35:32,604 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:35:32,655 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:35:32,662 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:35:32,662 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:35:32,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 49 states have (on average 1.7551020408163265) internal successors, (86), 50 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:35:32,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-02-20 16:35:32,677 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:35:32,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:35:32,678 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:35:32,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:35:32,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1033366539, now seen corresponding path program 1 times [2022-02-20 16:35:32,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:35:32,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272835658] [2022-02-20 16:35:32,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:35:32,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:35:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:35:32,800 INFO L290 TraceCheckUtils]: 0: Hoare triple {54#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(21, 2);call #Ultimate.allocInit(12, 3);~ln2_hi_log~0 := 0.6931471803691238;~ln2_lo_log~0 := 1.9082149292705877E-10;~two54_log~0 := 1.8014398509481984E16;~Lg1_log~0 := 0.6666666666666735;~Lg2_log~0 := 0.3999999999940942;~Lg3_log~0 := 0.2857142874366239;~Lg4_log~0 := 0.22222198432149784;~Lg5_log~0 := 0.1818357216161805;~Lg6_log~0 := 0.15313837699209373;~Lg7_log~0 := 0.14798198605116586;~zero~0 := 0.0;~two54_log10~0 := 1.8014398509481984E16;~ivln10_log10~0 := 0.4342944819032518;~log10_2hi_log10~0 := 0.30102999566361177;~log10_2lo_log10~0 := 3.694239077158931E-13;~zero_log10~0 := 0.0; {54#true} is VALID [2022-02-20 16:35:32,801 INFO L290 TraceCheckUtils]: 1: Hoare triple {54#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret15#1, main_#t~ret16#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~someBinaryArithmeticDOUBLEoperation(0.0, 0.0);assume { :begin_inline___ieee754_log10 } true;__ieee754_log10_#in~x#1 := main_~x~0#1;havoc __ieee754_log10_#res#1;havoc __ieee754_log10_#t~mem9#1, __ieee754_log10_#t~mem10#1, __ieee754_log10_~#ew_u~1#1.base, __ieee754_log10_~#ew_u~1#1.offset, __ieee754_log10_#t~mem11#1, __ieee754_log10_~#gh_u~1#1.base, __ieee754_log10_~#gh_u~1#1.offset, __ieee754_log10_#t~mem13#1, __ieee754_log10_~#sh_u~1#1.base, __ieee754_log10_~#sh_u~1#1.offset, __ieee754_log10_#t~ret14#1, __ieee754_log10_~x#1, __ieee754_log10_~y~0#1, __ieee754_log10_~z~1#1, __ieee754_log10_~i~1#1, __ieee754_log10_~k~1#1, __ieee754_log10_~hx~1#1, __ieee754_log10_~lx~1#1, __ieee754_log10_#t~nondet12#1;__ieee754_log10_~x#1 := __ieee754_log10_#in~x#1;havoc __ieee754_log10_~y~0#1;havoc __ieee754_log10_~z~1#1;havoc __ieee754_log10_~i~1#1;havoc __ieee754_log10_~k~1#1;havoc __ieee754_log10_~hx~1#1;havoc __ieee754_log10_~lx~1#1; {54#true} is VALID [2022-02-20 16:35:32,802 INFO L290 TraceCheckUtils]: 2: Hoare triple {54#true} assume !true; {55#false} is VALID [2022-02-20 16:35:32,802 INFO L290 TraceCheckUtils]: 3: Hoare triple {55#false} __ieee754_log10_~k~1#1 := 0; {55#false} is VALID [2022-02-20 16:35:32,802 INFO L290 TraceCheckUtils]: 4: Hoare triple {55#false} assume __ieee754_log10_~hx~1#1 < 1048576; {55#false} is VALID [2022-02-20 16:35:32,803 INFO L290 TraceCheckUtils]: 5: Hoare triple {55#false} assume 0 == (if (1 == (if 0 == __ieee754_log10_~hx~1#1 then 0 else (if 1 == __ieee754_log10_~hx~1#1 then 1 else ~bitwiseAnd(__ieee754_log10_~hx~1#1, 2147483647))) || 0 == (if 0 == __ieee754_log10_~hx~1#1 then 0 else (if 1 == __ieee754_log10_~hx~1#1 then 1 else ~bitwiseAnd(__ieee754_log10_~hx~1#1, 2147483647)))) && 0 == __ieee754_log10_~lx~1#1 then (if 0 == __ieee754_log10_~hx~1#1 then 0 else (if 1 == __ieee754_log10_~hx~1#1 then 1 else ~bitwiseAnd(__ieee754_log10_~hx~1#1, 2147483647))) else (if 0 == (if 0 == __ieee754_log10_~hx~1#1 then 0 else (if 1 == __ieee754_log10_~hx~1#1 then 1 else ~bitwiseAnd(__ieee754_log10_~hx~1#1, 2147483647))) && (1 == __ieee754_log10_~lx~1#1 || 0 == __ieee754_log10_~lx~1#1) then __ieee754_log10_~lx~1#1 else (if (1 == (if 0 == __ieee754_log10_~hx~1#1 then 0 else (if 1 == __ieee754_log10_~hx~1#1 then 1 else ~bitwiseAnd(__ieee754_log10_~hx~1#1, 2147483647))) && (1 == __ieee754_log10_~lx~1#1 || 0 == __ieee754_log10_~lx~1#1)) || ((1 == (if 0 == __ieee754_log10_~hx~1#1 then 0 else (if 1 == __ieee754_log10_~hx~1#1 then 1 else ~bitwiseAnd(__ieee754_log10_~hx~1#1, 2147483647))) || 0 == (if 0 == __ieee754_log10_~hx~1#1 then 0 else (if 1 == __ieee754_log10_~hx~1#1 then 1 else ~bitwiseAnd(__ieee754_log10_~hx~1#1, 2147483647)))) && 1 == __ieee754_log10_~lx~1#1) then 1 else ~bitwiseOr((if 0 == __ieee754_log10_~hx~1#1 then 0 else (if 1 == __ieee754_log10_~hx~1#1 then 1 else ~bitwiseAnd(__ieee754_log10_~hx~1#1, 2147483647))), __ieee754_log10_~lx~1#1)))) % 4294967296;__ieee754_log10_#res#1 := ~someBinaryArithmeticDOUBLEoperation(~someUnaryDOUBLEoperation(~two54_log10~0), ~zero_log10~0); {55#false} is VALID [2022-02-20 16:35:32,803 INFO L290 TraceCheckUtils]: 6: Hoare triple {55#false} main_#t~ret15#1 := __ieee754_log10_#res#1;assume { :end_inline___ieee754_log10 } true;main_~res~0#1 := main_#t~ret15#1;havoc main_#t~ret15#1;assume { :begin_inline_isnan_double } true;isnan_double_#in~x#1 := main_~res~0#1;havoc isnan_double_#res#1;havoc isnan_double_~x#1;isnan_double_~x#1 := isnan_double_#in~x#1;isnan_double_#res#1 := (if ~someBinaryDOUBLEComparisonOperation(isnan_double_~x#1, isnan_double_~x#1) then 1 else 0); {55#false} is VALID [2022-02-20 16:35:32,803 INFO L290 TraceCheckUtils]: 7: Hoare triple {55#false} main_#t~ret16#1 := isnan_double_#res#1;assume { :end_inline_isnan_double } true;assume -2147483648 <= main_#t~ret16#1 && main_#t~ret16#1 <= 2147483647; {55#false} is VALID [2022-02-20 16:35:32,804 INFO L290 TraceCheckUtils]: 8: Hoare triple {55#false} assume 0 == main_#t~ret16#1;havoc main_#t~ret16#1; {55#false} is VALID [2022-02-20 16:35:32,804 INFO L290 TraceCheckUtils]: 9: Hoare triple {55#false} assume !false; {55#false} is VALID [2022-02-20 16:35:32,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:35:32,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:35:32,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272835658] [2022-02-20 16:35:32,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272835658] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:35:32,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:35:32,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:35:32,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100559247] [2022-02-20 16:35:32,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:35:32,813 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-02-20 16:35:32,814 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:35:32,816 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:35:32,829 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:35:32,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:35:32,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:35:32,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:35:32,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:35:32,850 INFO L87 Difference]: Start difference. First operand has 51 states, 49 states have (on average 1.7551020408163265) internal successors, (86), 50 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:35:32,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:35:32,918 INFO L93 Difference]: Finished difference Result 100 states and 170 transitions. [2022-02-20 16:35:32,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:35:32,918 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-02-20 16:35:32,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:35:32,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:35:32,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 170 transitions. [2022-02-20 16:35:32,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:35:32,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 170 transitions. [2022-02-20 16:35:32,938 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 170 transitions. [2022-02-20 16:35:33,070 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 170 edges. 170 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:35:33,076 INFO L225 Difference]: With dead ends: 100 [2022-02-20 16:35:33,076 INFO L226 Difference]: Without dead ends: 48 [2022-02-20 16:35:33,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:35:33,092 INFO L933 BasicCegarLoop]: 71 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, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:35:33,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:35:33,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-02-20 16:35:33,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-02-20 16:35:33,109 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:35:33,110 INFO L82 GeneralOperation]: Start isEquivalent. First operand 48 states. Second operand has 48 states, 47 states have (on average 1.446808510638298) internal successors, (68), 47 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:35:33,111 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand has 48 states, 47 states have (on average 1.446808510638298) internal successors, (68), 47 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:35:33,111 INFO L87 Difference]: Start difference. First operand 48 states. Second operand has 48 states, 47 states have (on average 1.446808510638298) internal successors, (68), 47 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:35:33,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:35:33,129 INFO L93 Difference]: Finished difference Result 48 states and 68 transitions. [2022-02-20 16:35:33,129 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 68 transitions. [2022-02-20 16:35:33,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:35:33,129 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:35:33,130 INFO L74 IsIncluded]: Start isIncluded. First operand has 48 states, 47 states have (on average 1.446808510638298) internal successors, (68), 47 states have internal predecessors, (68), 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 48 states. [2022-02-20 16:35:33,130 INFO L87 Difference]: Start difference. First operand has 48 states, 47 states have (on average 1.446808510638298) internal successors, (68), 47 states have internal predecessors, (68), 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 48 states. [2022-02-20 16:35:33,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:35:33,132 INFO L93 Difference]: Finished difference Result 48 states and 68 transitions. [2022-02-20 16:35:33,132 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 68 transitions. [2022-02-20 16:35:33,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:35:33,132 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:35:33,132 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:35:33,133 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:35:33,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.446808510638298) internal successors, (68), 47 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:35:33,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2022-02-20 16:35:33,135 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 68 transitions. Word has length 10 [2022-02-20 16:35:33,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:35:33,135 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 68 transitions. [2022-02-20 16:35:33,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:35:33,136 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 68 transitions. [2022-02-20 16:35:33,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-20 16:35:33,136 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:35:33,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:35:33,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:35:33,137 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:35:33,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:35:33,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1301940658, now seen corresponding path program 1 times [2022-02-20 16:35:33,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:35:33,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537617189] [2022-02-20 16:35:33,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:35:33,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:35:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:35:33,176 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:35:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:35:33,233 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:35:33,234 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:35:33,235 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:35:33,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 16:35:33,238 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 16:35:33,240 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:35:33,277 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:35:33,278 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:35:33,278 WARN L170 areAnnotationChecker]: L125-2 has no Hoare annotation [2022-02-20 16:35:33,278 WARN L170 areAnnotationChecker]: L125-2 has no Hoare annotation [2022-02-20 16:35:33,278 WARN L170 areAnnotationChecker]: L125-1 has no Hoare annotation [2022-02-20 16:35:33,278 WARN L170 areAnnotationChecker]: L125-1 has no Hoare annotation [2022-02-20 16:35:33,278 WARN L170 areAnnotationChecker]: L125-3 has no Hoare annotation [2022-02-20 16:35:33,278 WARN L170 areAnnotationChecker]: L133 has no Hoare annotation [2022-02-20 16:35:33,278 WARN L170 areAnnotationChecker]: L133 has no Hoare annotation [2022-02-20 16:35:33,278 WARN L170 areAnnotationChecker]: L134 has no Hoare annotation [2022-02-20 16:35:33,279 WARN L170 areAnnotationChecker]: L134 has no Hoare annotation [2022-02-20 16:35:33,279 WARN L170 areAnnotationChecker]: L133-1 has no Hoare annotation [2022-02-20 16:35:33,279 WARN L170 areAnnotationChecker]: L133-1 has no Hoare annotation [2022-02-20 16:35:33,279 WARN L170 areAnnotationChecker]: L159 has no Hoare annotation [2022-02-20 16:35:33,279 WARN L170 areAnnotationChecker]: L136 has no Hoare annotation [2022-02-20 16:35:33,279 WARN L170 areAnnotationChecker]: L136 has no Hoare annotation [2022-02-20 16:35:33,279 WARN L170 areAnnotationChecker]: L150 has no Hoare annotation [2022-02-20 16:35:33,279 WARN L170 areAnnotationChecker]: L150 has no Hoare annotation [2022-02-20 16:35:33,279 WARN L170 areAnnotationChecker]: L163 has no Hoare annotation [2022-02-20 16:35:33,280 WARN L170 areAnnotationChecker]: L140-2 has no Hoare annotation [2022-02-20 16:35:33,280 WARN L170 areAnnotationChecker]: L140-2 has no Hoare annotation [2022-02-20 16:35:33,280 WARN L170 areAnnotationChecker]: L150-8 has no Hoare annotation [2022-02-20 16:35:33,280 WARN L170 areAnnotationChecker]: L150-2 has no Hoare annotation [2022-02-20 16:35:33,280 WARN L170 areAnnotationChecker]: L150-2 has no Hoare annotation [2022-02-20 16:35:33,280 WARN L170 areAnnotationChecker]: L176 has no Hoare annotation [2022-02-20 16:35:33,280 WARN L170 areAnnotationChecker]: L176 has no Hoare annotation [2022-02-20 16:35:33,280 WARN L170 areAnnotationChecker]: L140-1 has no Hoare annotation [2022-02-20 16:35:33,280 WARN L170 areAnnotationChecker]: L140-1 has no Hoare annotation [2022-02-20 16:35:33,281 WARN L170 areAnnotationChecker]: L152-2 has no Hoare annotation [2022-02-20 16:35:33,281 WARN L170 areAnnotationChecker]: L152-2 has no Hoare annotation [2022-02-20 16:35:33,281 WARN L170 areAnnotationChecker]: L150-4 has no Hoare annotation [2022-02-20 16:35:33,281 WARN L170 areAnnotationChecker]: L150-4 has no Hoare annotation [2022-02-20 16:35:33,281 WARN L170 areAnnotationChecker]: L177 has no Hoare annotation [2022-02-20 16:35:33,281 WARN L170 areAnnotationChecker]: L177 has no Hoare annotation [2022-02-20 16:35:33,281 WARN L170 areAnnotationChecker]: L181 has no Hoare annotation [2022-02-20 16:35:33,281 WARN L170 areAnnotationChecker]: L152-1 has no Hoare annotation [2022-02-20 16:35:33,281 WARN L170 areAnnotationChecker]: L152-1 has no Hoare annotation [2022-02-20 16:35:33,282 WARN L170 areAnnotationChecker]: L152-3 has no Hoare annotation [2022-02-20 16:35:33,282 WARN L170 areAnnotationChecker]: L150-6 has no Hoare annotation [2022-02-20 16:35:33,282 WARN L170 areAnnotationChecker]: L150-6 has no Hoare annotation [2022-02-20 16:35:33,282 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:35:33,282 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2022-02-20 16:35:33,282 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2022-02-20 16:35:33,282 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2022-02-20 16:35:33,282 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2022-02-20 16:35:33,282 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2022-02-20 16:35:33,283 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2022-02-20 16:35:33,283 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2022-02-20 16:35:33,283 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2022-02-20 16:35:33,283 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2022-02-20 16:35:33,283 WARN L170 areAnnotationChecker]: L45-1 has no Hoare annotation [2022-02-20 16:35:33,283 WARN L170 areAnnotationChecker]: L45-1 has no Hoare annotation [2022-02-20 16:35:33,283 WARN L170 areAnnotationChecker]: L109 has no Hoare annotation [2022-02-20 16:35:33,283 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 16:35:33,283 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 16:35:33,284 WARN L170 areAnnotationChecker]: L62 has no Hoare annotation [2022-02-20 16:35:33,284 WARN L170 areAnnotationChecker]: L62 has no Hoare annotation [2022-02-20 16:35:33,284 WARN L170 areAnnotationChecker]: L52-2 has no Hoare annotation [2022-02-20 16:35:33,284 WARN L170 areAnnotationChecker]: L52-2 has no Hoare annotation [2022-02-20 16:35:33,284 WARN L170 areAnnotationChecker]: L63-1 has no Hoare annotation [2022-02-20 16:35:33,284 WARN L170 areAnnotationChecker]: L63-1 has no Hoare annotation [2022-02-20 16:35:33,284 WARN L170 areAnnotationChecker]: L62-2 has no Hoare annotation [2022-02-20 16:35:33,284 WARN L170 areAnnotationChecker]: L62-2 has no Hoare annotation [2022-02-20 16:35:33,284 WARN L170 areAnnotationChecker]: L52-1 has no Hoare annotation [2022-02-20 16:35:33,285 WARN L170 areAnnotationChecker]: L52-1 has no Hoare annotation [2022-02-20 16:35:33,285 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2022-02-20 16:35:33,285 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2022-02-20 16:35:33,285 WARN L170 areAnnotationChecker]: L63-2 has no Hoare annotation [2022-02-20 16:35:33,285 WARN L170 areAnnotationChecker]: L62-4 has no Hoare annotation [2022-02-20 16:35:33,285 WARN L170 areAnnotationChecker]: L62-4 has no Hoare annotation [2022-02-20 16:35:33,285 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2022-02-20 16:35:33,285 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2022-02-20 16:35:33,285 WARN L170 areAnnotationChecker]: L62-6 has no Hoare annotation [2022-02-20 16:35:33,286 WARN L170 areAnnotationChecker]: L62-6 has no Hoare annotation [2022-02-20 16:35:33,286 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 16:35:33,286 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 16:35:33,286 WARN L170 areAnnotationChecker]: L98 has no Hoare annotation [2022-02-20 16:35:33,286 WARN L170 areAnnotationChecker]: L98 has no Hoare annotation [2022-02-20 16:35:33,286 WARN L170 areAnnotationChecker]: L73 has no Hoare annotation [2022-02-20 16:35:33,286 WARN L170 areAnnotationChecker]: L73 has no Hoare annotation [2022-02-20 16:35:33,286 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 16:35:33,286 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 16:35:33,287 WARN L170 areAnnotationChecker]: L100 has no Hoare annotation [2022-02-20 16:35:33,287 WARN L170 areAnnotationChecker]: L100 has no Hoare annotation [2022-02-20 16:35:33,287 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2022-02-20 16:35:33,287 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2022-02-20 16:35:33,287 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:35:33,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:35:33 BoogieIcfgContainer [2022-02-20 16:35:33,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:35:33,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:35:33,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:35:33,288 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:35:33,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:35:32" (3/4) ... [2022-02-20 16:35:33,291 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:35:33,291 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:35:33,292 INFO L158 Benchmark]: Toolchain (without parser) took 1783.76ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 98.3MB in the beginning and 140.6MB in the end (delta: -42.3MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2022-02-20 16:35:33,292 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 90.2MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:35:33,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.35ms. Allocated memory is still 127.9MB. Free memory was 98.3MB in the beginning and 97.7MB in the end (delta: 547.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:35:33,293 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.67ms. Allocated memory is still 127.9MB. Free memory was 97.7MB in the beginning and 94.1MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:35:33,293 INFO L158 Benchmark]: Boogie Preprocessor took 39.93ms. Allocated memory is still 127.9MB. Free memory was 94.1MB in the beginning and 91.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-20 16:35:33,293 INFO L158 Benchmark]: RCFGBuilder took 628.52ms. Allocated memory is still 127.9MB. Free memory was 91.4MB in the beginning and 64.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-02-20 16:35:33,294 INFO L158 Benchmark]: TraceAbstraction took 696.97ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 63.7MB in the beginning and 140.6MB in the end (delta: -76.8MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-02-20 16:35:33,294 INFO L158 Benchmark]: Witness Printer took 2.58ms. Allocated memory is still 174.1MB. Free memory is still 140.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:35:33,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 90.2MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.35ms. Allocated memory is still 127.9MB. Free memory was 98.3MB in the beginning and 97.7MB in the end (delta: 547.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.67ms. Allocated memory is still 127.9MB. Free memory was 97.7MB in the beginning and 94.1MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.93ms. Allocated memory is still 127.9MB. Free memory was 94.1MB in the beginning and 91.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 628.52ms. Allocated memory is still 127.9MB. Free memory was 91.4MB in the beginning and 64.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 696.97ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 63.7MB in the beginning and 140.6MB in the end (delta: -76.8MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Witness Printer took 2.58ms. Allocated memory is still 174.1MB. Free memory is still 140.6MB. 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: 177]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 134, overapproximation of someBinaryArithmeticDOUBLEoperation at line 135, overapproximation of bitwiseAnd at line 134, overapproximation of someBinaryDOUBLEComparisonOperation at line 163. Possible FailurePath: [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L118] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L172] double x = 0.0 / 0.0; [L173] CALL, EXPR __ieee754_log10(x) [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; VAL [\old(x)=18014398509481986, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481986, zero=0, zero_log10=0] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 VAL [\old(x)=18014398509481986, hx=-1, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=0, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481986, zero=0, zero_log10=0] [L133] COND TRUE hx < 0x00100000 VAL [\old(x)=18014398509481986, hx=-1, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=0, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481986, zero=0, zero_log10=0] [L134] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L135] return -two54_log10 / zero_log10; VAL [\old(x)=18014398509481986, hx=-1, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=0, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481986, zero=0, zero_log10=0] [L173] RET, EXPR __ieee754_log10(x) [L173] double res = __ieee754_log10(x); [L176] CALL, EXPR isnan_double(res) [L163] return x != x; VAL [\old(x)=18014398509481985, \result=0, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481985, zero=0, zero_log10=0] [L176] RET, EXPR isnan_double(res) [L176] COND TRUE !isnan_double(res) [L177] reach_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, res=18014398509481985, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481986, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 71 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, 71 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=51occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-20 16:35:33,328 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 -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_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 8f280d01eb562e8c8261ac147082d6e8f78ef66f3849ff492be6220e1f9f04ed --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:35:35,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:35:35,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:35:35,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:35:35,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:35:35,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:35:35,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:35:35,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:35:35,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:35:35,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:35:35,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:35:35,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:35:35,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:35:35,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:35:35,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:35:35,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:35:35,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:35:35,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:35:35,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:35:35,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:35:35,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:35:35,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:35:35,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:35:35,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:35:35,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:35:35,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:35:35,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:35:35,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:35:35,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:35:35,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:35:35,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:35:35,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:35:35,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:35:35,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:35:35,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:35:35,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:35:35,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:35:35,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:35:35,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:35:35,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:35:35,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:35:35,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:35:35,258 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:35:35,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:35:35,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:35:35,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:35:35,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:35:35,260 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:35:35,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:35:35,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:35:35,262 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:35:35,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:35:35,262 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:35:35,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:35:35,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:35:35,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:35:35,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:35:35,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:35:35,263 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:35:35,263 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:35:35,263 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:35:35,264 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:35:35,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:35:35,264 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:35:35,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:35:35,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:35:35,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:35:35,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:35:35,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:35:35,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:35:35,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:35:35,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:35:35,273 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:35:35,273 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:35:35,273 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:35:35,273 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:35:35,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:35:35,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:35:35,274 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f280d01eb562e8c8261ac147082d6e8f78ef66f3849ff492be6220e1f9f04ed [2022-02-20 16:35:35,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:35:35,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:35:35,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:35:35,563 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:35:35,563 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:35:35,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2022-02-20 16:35:35,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f706b6d28/8d9e9f5b3b614f9db2b9d12a101957f8/FLAG7059c0eda [2022-02-20 16:35:36,000 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:35:36,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0971.c [2022-02-20 16:35:36,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f706b6d28/8d9e9f5b3b614f9db2b9d12a101957f8/FLAG7059c0eda [2022-02-20 16:35:36,013 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f706b6d28/8d9e9f5b3b614f9db2b9d12a101957f8 [2022-02-20 16:35:36,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:35:36,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:35:36,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:35:36,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:35:36,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:35:36,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:35:36" (1/1) ... [2022-02-20 16:35:36,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791557e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:36, skipping insertion in model container [2022-02-20 16:35:36,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:35:36" (1/1) ... [2022-02-20 16:35:36,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:35:36,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:35:36,279 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/double_req_bl_0971.c[4582,4595] [2022-02-20 16:35:36,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:35:36,298 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:35:36,341 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/double_req_bl_0971.c[4582,4595] [2022-02-20 16:35:36,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:35:36,372 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:35:36,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:36 WrapperNode [2022-02-20 16:35:36,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:35:36,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:35:36,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:35:36,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:35:36,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:36" (1/1) ... [2022-02-20 16:35:36,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:36" (1/1) ... [2022-02-20 16:35:36,441 INFO L137 Inliner]: procedures = 21, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 216 [2022-02-20 16:35:36,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:35:36,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:35:36,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:35:36,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:35:36,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:36" (1/1) ... [2022-02-20 16:35:36,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:36" (1/1) ... [2022-02-20 16:35:36,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:36" (1/1) ... [2022-02-20 16:35:36,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:36" (1/1) ... [2022-02-20 16:35:36,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:36" (1/1) ... [2022-02-20 16:35:36,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:36" (1/1) ... [2022-02-20 16:35:36,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:36" (1/1) ... [2022-02-20 16:35:36,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:35:36,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:35:36,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:35:36,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:35:36,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:36" (1/1) ... [2022-02-20 16:35:36,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:35:36,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:35:36,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:35:36,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:35:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:35:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-02-20 16:35:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-02-20 16:35:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:35:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:35:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-02-20 16:35:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:35:36,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:35:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-02-20 16:35:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:35:36,611 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:35:36,612 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:36:07,796 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:36:07,801 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:36:07,801 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-02-20 16:36:07,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:36:07 BoogieIcfgContainer [2022-02-20 16:36:07,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:36:07,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:36:07,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:36:07,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:36:07,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:35:36" (1/3) ... [2022-02-20 16:36:07,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d69e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:36:07, skipping insertion in model container [2022-02-20 16:36:07,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:35:36" (2/3) ... [2022-02-20 16:36:07,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d69e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:36:07, skipping insertion in model container [2022-02-20 16:36:07,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:36:07" (3/3) ... [2022-02-20 16:36:07,808 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0971.c [2022-02-20 16:36:07,811 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:36:07,811 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:36:07,856 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:36:07,860 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:36:07,868 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:36:07,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.725) internal successors, (69), 41 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:36:07,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-02-20 16:36:07,886 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:36:07,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:36:07,886 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:36:07,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:36:07,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1032073611, now seen corresponding path program 1 times [2022-02-20 16:36:07,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:36:07,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400922810] [2022-02-20 16:36:07,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:36:07,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:36:07,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:36:07,917 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 16:36:07,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:36:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:36:08,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 16:36:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:36:08,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:36:08,837 INFO L290 TraceCheckUtils]: 0: Hoare triple {45#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(21bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32);~ln2_hi_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6931471803691238);~ln2_lo_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.9082149292705877E-10);~two54_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~Lg1_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6666666666666735);~Lg2_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.3999999999940942);~Lg3_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.2857142874366239);~Lg4_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.22222198432149784);~Lg5_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.1818357216161805);~Lg6_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.15313837699209373);~Lg7_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.14798198605116586);~zero~0 := ~Pluszero~DOUBLE();~two54_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~ivln10_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.4342944819032518);~log10_2hi_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.30102999566361177);~log10_2lo_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.694239077158931E-13);~zero_log10~0 := ~Pluszero~DOUBLE(); {45#true} is VALID [2022-02-20 16:36:08,838 INFO L290 TraceCheckUtils]: 1: Hoare triple {45#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret13#1, main_#t~ret14#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~DOUBLE(), ~Pluszero~DOUBLE());assume { :begin_inline___ieee754_log10 } true;__ieee754_log10_#in~x#1 := main_~x~0#1;havoc __ieee754_log10_#res#1;havoc __ieee754_log10_#t~mem8#1, __ieee754_log10_#t~mem9#1, __ieee754_log10_~#ew_u~1#1.base, __ieee754_log10_~#ew_u~1#1.offset, __ieee754_log10_#t~mem10#1, __ieee754_log10_~#gh_u~1#1.base, __ieee754_log10_~#gh_u~1#1.offset, __ieee754_log10_#t~mem11#1, __ieee754_log10_~#sh_u~1#1.base, __ieee754_log10_~#sh_u~1#1.offset, __ieee754_log10_#t~ret12#1, __ieee754_log10_~x#1, __ieee754_log10_~y~0#1, __ieee754_log10_~z~1#1, __ieee754_log10_~i~1#1, __ieee754_log10_~k~1#1, __ieee754_log10_~hx~1#1, __ieee754_log10_~lx~1#1;__ieee754_log10_~x#1 := __ieee754_log10_#in~x#1;havoc __ieee754_log10_~y~0#1;havoc __ieee754_log10_~z~1#1;havoc __ieee754_log10_~i~1#1;havoc __ieee754_log10_~k~1#1;havoc __ieee754_log10_~hx~1#1;havoc __ieee754_log10_~lx~1#1; {45#true} is VALID [2022-02-20 16:36:08,839 INFO L290 TraceCheckUtils]: 2: Hoare triple {45#true} assume !true; {46#false} is VALID [2022-02-20 16:36:08,839 INFO L290 TraceCheckUtils]: 3: Hoare triple {46#false} __ieee754_log10_~k~1#1 := 0bv32; {46#false} is VALID [2022-02-20 16:36:08,839 INFO L290 TraceCheckUtils]: 4: Hoare triple {46#false} assume ~bvslt32(__ieee754_log10_~hx~1#1, 1048576bv32); {46#false} is VALID [2022-02-20 16:36:08,839 INFO L290 TraceCheckUtils]: 5: Hoare triple {46#false} assume 0bv32 == ~bvor32(~bvand32(2147483647bv32, __ieee754_log10_~hx~1#1), __ieee754_log10_~lx~1#1);__ieee754_log10_#res#1 := ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~two54_log10~0), ~zero_log10~0); {46#false} is VALID [2022-02-20 16:36:08,839 INFO L290 TraceCheckUtils]: 6: Hoare triple {46#false} main_#t~ret13#1 := __ieee754_log10_#res#1;assume { :end_inline___ieee754_log10 } true;main_~res~0#1 := main_#t~ret13#1;havoc main_#t~ret13#1;assume { :begin_inline_isnan_double } true;isnan_double_#in~x#1 := main_~res~0#1;havoc isnan_double_#res#1;havoc isnan_double_~x#1;isnan_double_~x#1 := isnan_double_#in~x#1;isnan_double_#res#1 := (if !~fp.eq~DOUBLE(isnan_double_~x#1, isnan_double_~x#1) then 1bv32 else 0bv32); {46#false} is VALID [2022-02-20 16:36:08,840 INFO L290 TraceCheckUtils]: 7: Hoare triple {46#false} main_#t~ret14#1 := isnan_double_#res#1;assume { :end_inline_isnan_double } true; {46#false} is VALID [2022-02-20 16:36:08,840 INFO L290 TraceCheckUtils]: 8: Hoare triple {46#false} assume 0bv32 == main_#t~ret14#1;havoc main_#t~ret14#1; {46#false} is VALID [2022-02-20 16:36:08,840 INFO L290 TraceCheckUtils]: 9: Hoare triple {46#false} assume !false; {46#false} is VALID [2022-02-20 16:36:08,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:36:08,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:36:08,841 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:36:08,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400922810] [2022-02-20 16:36:08,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400922810] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:36:08,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:36:08,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:36:08,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192216545] [2022-02-20 16:36:08,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:36:08,847 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-02-20 16:36:08,847 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:36:08,849 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:36:09,580 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:36:09,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:36:09,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:36:09,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:36:09,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:36:09,601 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.725) internal successors, (69), 41 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:36:41,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:36:41,746 INFO L93 Difference]: Finished difference Result 82 states and 136 transitions. [2022-02-20 16:36:41,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:36:41,746 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-02-20 16:36:41,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:36:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:36:41,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 136 transitions. [2022-02-20 16:36:41,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:36:41,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 136 transitions. [2022-02-20 16:36:41,753 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 136 transitions.