./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0620b.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 a2c42a61f78a6f1a62fbe64821c08eae311814302de1dfe9812261f1f96648c5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 14:12:41,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 14:12:41,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 14:12:41,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 14:12:41,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 14:12:41,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 14:12:41,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 14:12:41,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 14:12:41,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 14:12:41,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 14:12:41,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 14:12:41,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 14:12:41,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 14:12:41,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 14:12:41,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 14:12:41,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 14:12:41,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 14:12:41,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 14:12:41,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 14:12:41,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 14:12:41,293 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 14:12:41,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 14:12:41,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 14:12:41,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 14:12:41,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 14:12:41,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 14:12:41,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 14:12:41,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 14:12:41,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 14:12:41,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 14:12:41,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 14:12:41,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 14:12:41,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 14:12:41,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 14:12:41,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 14:12:41,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 14:12:41,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 14:12:41,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 14:12:41,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 14:12:41,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 14:12:41,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 14:12:41,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 14:12:41,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 14:12:41,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 14:12:41,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 14:12:41,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 14:12:41,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 14:12:41,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 14:12:41,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 14:12:41,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 14:12:41,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 14:12:41,332 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 14:12:41,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 14:12:41,333 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 14:12:41,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 14:12:41,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 14:12:41,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 14:12:41,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 14:12:41,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 14:12:41,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 14:12:41,334 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 14:12:41,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 14:12:41,335 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 14:12:41,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 14:12:41,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 14:12:41,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 14:12:41,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 14:12:41,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:12:41,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 14:12:41,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 14:12:41,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 14:12:41,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 14:12:41,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 14:12:41,337 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 14:12:41,337 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 14:12:41,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 14:12:41,338 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2c42a61f78a6f1a62fbe64821c08eae311814302de1dfe9812261f1f96648c5 [2022-07-22 14:12:41,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 14:12:41,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 14:12:41,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 14:12:41,549 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 14:12:41,549 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 14:12:41,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2022-07-22 14:12:41,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faadbc05b/e57027394022423fb65870957129240d/FLAG34aeedac7 [2022-07-22 14:12:41,970 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 14:12:41,970 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2022-07-22 14:12:41,975 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faadbc05b/e57027394022423fb65870957129240d/FLAG34aeedac7 [2022-07-22 14:12:41,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faadbc05b/e57027394022423fb65870957129240d [2022-07-22 14:12:41,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 14:12:41,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 14:12:41,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 14:12:41,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 14:12:41,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 14:12:41,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:12:41" (1/1) ... [2022-07-22 14:12:41,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ad964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:41, skipping insertion in model container [2022-07-22 14:12:41,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:12:41" (1/1) ... [2022-07-22 14:12:41,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 14:12:42,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 14:12:42,162 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_0620b.c[3928,3941] [2022-07-22 14:12:42,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:12:42,171 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 14:12:42,198 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_0620b.c[3928,3941] [2022-07-22 14:12:42,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:12:42,222 INFO L208 MainTranslator]: Completed translation [2022-07-22 14:12:42,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:42 WrapperNode [2022-07-22 14:12:42,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 14:12:42,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 14:12:42,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 14:12:42,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 14:12:42,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:42" (1/1) ... [2022-07-22 14:12:42,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:42" (1/1) ... [2022-07-22 14:12:42,253 INFO L137 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 222 [2022-07-22 14:12:42,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 14:12:42,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 14:12:42,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 14:12:42,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 14:12:42,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:42" (1/1) ... [2022-07-22 14:12:42,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:42" (1/1) ... [2022-07-22 14:12:42,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:42" (1/1) ... [2022-07-22 14:12:42,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:42" (1/1) ... [2022-07-22 14:12:42,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:42" (1/1) ... [2022-07-22 14:12:42,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:42" (1/1) ... [2022-07-22 14:12:42,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:42" (1/1) ... [2022-07-22 14:12:42,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 14:12:42,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 14:12:42,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 14:12:42,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 14:12:42,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:42" (1/1) ... [2022-07-22 14:12:42,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:12:42,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 14:12:42,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 14:12:42,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 14:12:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 14:12:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 14:12:42,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 14:12:42,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-22 14:12:42,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 14:12:42,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-22 14:12:42,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 14:12:42,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 14:12:42,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 14:12:42,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-22 14:12:42,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 14:12:42,390 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 14:12:42,392 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 14:12:42,540 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 14:12:42,544 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 14:12:42,544 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-07-22 14:12:42,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:12:42 BoogieIcfgContainer [2022-07-22 14:12:42,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 14:12:42,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 14:12:42,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 14:12:42,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 14:12:42,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:12:41" (1/3) ... [2022-07-22 14:12:42,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6ae1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:12:42, skipping insertion in model container [2022-07-22 14:12:42,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:42" (2/3) ... [2022-07-22 14:12:42,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6ae1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:12:42, skipping insertion in model container [2022-07-22 14:12:42,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:12:42" (3/3) ... [2022-07-22 14:12:42,552 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2022-07-22 14:12:42,561 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 14:12:42,561 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 14:12:42,599 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 14:12:42,603 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@57feb31d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6354dba6 [2022-07-22 14:12:42,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 14:12:42,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.7) internal successors, (68), 41 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) [2022-07-22 14:12:42,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 14:12:42,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:12:42,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:12:42,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:12:42,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:12:42,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1901597288, now seen corresponding path program 1 times [2022-07-22 14:12:42,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:12:42,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026969372] [2022-07-22 14:12:42,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:12:42,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:12:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:12:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:12:42,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 14:12:42,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026969372] [2022-07-22 14:12:42,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026969372] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:12:42,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:12:42,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 14:12:42,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534411732] [2022-07-22 14:12:42,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:12:42,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 14:12:42,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 14:12:42,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 14:12:42,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:12:42,765 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.7) internal successors, (68), 41 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 has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:12:42,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:12:42,777 INFO L93 Difference]: Finished difference Result 82 states and 134 transitions. [2022-07-22 14:12:42,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 14:12:42,779 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-22 14:12:42,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:12:42,785 INFO L225 Difference]: With dead ends: 82 [2022-07-22 14:12:42,785 INFO L226 Difference]: Without dead ends: 39 [2022-07-22 14:12:42,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:12:42,789 INFO L413 NwaCegarLoop]: 55 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, 55 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:12:42,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:12:42,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-22 14:12:42,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-07-22 14:12:42,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.368421052631579) internal successors, (52), 38 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:12:42,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2022-07-22 14:12:42,813 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 11 [2022-07-22 14:12:42,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:12:42,814 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2022-07-22 14:12:42,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:12:42,814 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2022-07-22 14:12:42,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 14:12:42,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:12:42,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:12:42,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 14:12:42,815 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:12:42,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:12:42,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1021567882, now seen corresponding path program 1 times [2022-07-22 14:12:42,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:12:42,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441714637] [2022-07-22 14:12:42,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:12:42,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:12:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:12:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:12:42,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 14:12:42,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441714637] [2022-07-22 14:12:42,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441714637] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:12:42,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:12:42,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 14:12:42,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379978318] [2022-07-22 14:12:42,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:12:42,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 14:12:42,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 14:12:42,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 14:12:42,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 14:12:42,882 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:12:42,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:12:42,910 INFO L93 Difference]: Finished difference Result 84 states and 110 transitions. [2022-07-22 14:12:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 14:12:42,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-22 14:12:42,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:12:42,912 INFO L225 Difference]: With dead ends: 84 [2022-07-22 14:12:42,912 INFO L226 Difference]: Without dead ends: 57 [2022-07-22 14:12:42,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 14:12:42,913 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 21 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:12:42,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 83 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:12:42,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-07-22 14:12:42,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 42. [2022-07-22 14:12:42,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 41 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:12:42,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2022-07-22 14:12:42,918 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 13 [2022-07-22 14:12:42,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:12:42,919 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions. [2022-07-22 14:12:42,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:12:42,919 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2022-07-22 14:12:42,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 14:12:42,919 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:12:42,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:12:42,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 14:12:42,920 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:12:42,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:12:42,921 INFO L85 PathProgramCache]: Analyzing trace with hash -516444155, now seen corresponding path program 1 times [2022-07-22 14:12:42,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:12:42,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954270896] [2022-07-22 14:12:42,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:12:42,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:12:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 14:12:42,953 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 14:12:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 14:12:43,006 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 14:12:43,006 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 14:12:43,007 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 14:12:43,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 14:12:43,011 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-22 14:12:43,013 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 14:12:43,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:12:43 BoogieIcfgContainer [2022-07-22 14:12:43,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 14:12:43,038 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 14:12:43,038 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 14:12:43,038 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 14:12:43,039 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:12:42" (3/4) ... [2022-07-22 14:12:43,041 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 14:12:43,042 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 14:12:43,042 INFO L158 Benchmark]: Toolchain (without parser) took 1056.34ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 67.5MB in the beginning and 62.0MB in the end (delta: 5.5MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-07-22 14:12:43,043 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 54.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:12:43,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.73ms. Allocated memory is still 98.6MB. Free memory was 67.3MB in the beginning and 70.6MB in the end (delta: -3.3MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-07-22 14:12:43,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.83ms. Allocated memory is still 98.6MB. Free memory was 70.3MB in the beginning and 68.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:12:43,044 INFO L158 Benchmark]: Boogie Preprocessor took 24.26ms. Allocated memory is still 98.6MB. Free memory was 68.2MB in the beginning and 66.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:12:43,044 INFO L158 Benchmark]: RCFGBuilder took 266.59ms. Allocated memory is still 98.6MB. Free memory was 66.1MB in the beginning and 50.7MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-22 14:12:43,045 INFO L158 Benchmark]: TraceAbstraction took 490.32ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 50.4MB in the beginning and 62.0MB in the end (delta: -11.6MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-07-22 14:12:43,045 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 119.5MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:12:43,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 54.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.73ms. Allocated memory is still 98.6MB. Free memory was 67.3MB in the beginning and 70.6MB in the end (delta: -3.3MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.83ms. Allocated memory is still 98.6MB. Free memory was 70.3MB in the beginning and 68.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.26ms. Allocated memory is still 98.6MB. Free memory was 68.2MB in the beginning and 66.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 266.59ms. Allocated memory is still 98.6MB. Free memory was 66.1MB in the beginning and 50.7MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 490.32ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 50.4MB in the beginning and 62.0MB in the end (delta: -11.6MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 119.5MB. Free memory is still 62.0MB. 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: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 160, overapproximation of someUnaryDOUBLEoperation at line 54. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L156] double x = 0.0; [L157] CALL, EXPR atan_double(x) [L67] double w, s1, s2, z; [L68] __int32_t ix, hx, id; VAL [\old(x)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L71] ieee_double_shape_type gh_u; [L72] gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] (hx) = gh_u.parts.msw [L75] ix = hx & 0x7fffffff VAL [\old(x)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L76] COND FALSE !(ix >= 0x44100000) VAL [\old(x)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L90] COND TRUE ix < 0x3fdc0000 VAL [\old(x)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L91] COND TRUE ix < 0x3e200000 VAL [\old(x)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L92] COND TRUE huge_atan + x > one_atan [L93] return x; VAL [\old(x)=0, \result=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L157] RET, EXPR atan_double(x) [L157] double res = atan_double(x); [L160] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=0, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L160] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L161] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 138 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 104 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-22 14:12:43,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0620b.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 a2c42a61f78a6f1a62fbe64821c08eae311814302de1dfe9812261f1f96648c5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 14:12:45,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 14:12:45,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 14:12:45,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 14:12:45,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 14:12:45,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 14:12:45,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 14:12:45,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 14:12:45,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 14:12:45,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 14:12:45,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 14:12:45,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 14:12:45,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 14:12:45,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 14:12:45,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 14:12:45,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 14:12:45,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 14:12:45,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 14:12:45,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 14:12:45,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 14:12:45,065 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 14:12:45,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 14:12:45,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 14:12:45,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 14:12:45,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 14:12:45,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 14:12:45,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 14:12:45,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 14:12:45,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 14:12:45,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 14:12:45,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 14:12:45,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 14:12:45,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 14:12:45,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 14:12:45,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 14:12:45,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 14:12:45,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 14:12:45,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 14:12:45,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 14:12:45,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 14:12:45,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 14:12:45,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 14:12:45,086 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-22 14:12:45,110 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 14:12:45,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 14:12:45,111 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 14:12:45,111 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 14:12:45,111 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 14:12:45,112 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 14:12:45,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 14:12:45,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 14:12:45,112 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 14:12:45,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 14:12:45,113 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 14:12:45,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 14:12:45,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 14:12:45,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 14:12:45,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 14:12:45,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 14:12:45,119 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 14:12:45,119 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 14:12:45,120 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 14:12:45,120 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 14:12:45,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 14:12:45,120 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 14:12:45,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 14:12:45,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 14:12:45,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 14:12:45,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 14:12:45,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:12:45,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 14:12:45,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 14:12:45,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 14:12:45,122 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 14:12:45,122 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 14:12:45,122 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 14:12:45,122 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 14:12:45,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 14:12:45,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 14:12:45,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2c42a61f78a6f1a62fbe64821c08eae311814302de1dfe9812261f1f96648c5 [2022-07-22 14:12:45,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 14:12:45,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 14:12:45,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 14:12:45,474 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 14:12:45,475 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 14:12:45,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2022-07-22 14:12:45,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb893974/2c9d2773040b4936986b6ec06a76e4e8/FLAGcecf71300 [2022-07-22 14:12:45,923 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 14:12:45,923 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2022-07-22 14:12:45,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb893974/2c9d2773040b4936986b6ec06a76e4e8/FLAGcecf71300 [2022-07-22 14:12:45,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbb893974/2c9d2773040b4936986b6ec06a76e4e8 [2022-07-22 14:12:45,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 14:12:45,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 14:12:45,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 14:12:45,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 14:12:45,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 14:12:45,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:12:45" (1/1) ... [2022-07-22 14:12:45,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71678f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:45, skipping insertion in model container [2022-07-22 14:12:45,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:12:45" (1/1) ... [2022-07-22 14:12:45,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 14:12:45,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 14:12:46,169 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_0620b.c[3928,3941] [2022-07-22 14:12:46,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:12:46,188 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 14:12:46,231 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_0620b.c[3928,3941] [2022-07-22 14:12:46,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:12:46,255 INFO L208 MainTranslator]: Completed translation [2022-07-22 14:12:46,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:46 WrapperNode [2022-07-22 14:12:46,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 14:12:46,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 14:12:46,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 14:12:46,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 14:12:46,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:46" (1/1) ... [2022-07-22 14:12:46,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:46" (1/1) ... [2022-07-22 14:12:46,316 INFO L137 Inliner]: procedures = 22, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 210 [2022-07-22 14:12:46,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 14:12:46,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 14:12:46,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 14:12:46,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 14:12:46,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:46" (1/1) ... [2022-07-22 14:12:46,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:46" (1/1) ... [2022-07-22 14:12:46,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:46" (1/1) ... [2022-07-22 14:12:46,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:46" (1/1) ... [2022-07-22 14:12:46,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:46" (1/1) ... [2022-07-22 14:12:46,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:46" (1/1) ... [2022-07-22 14:12:46,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:46" (1/1) ... [2022-07-22 14:12:46,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 14:12:46,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 14:12:46,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 14:12:46,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 14:12:46,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:46" (1/1) ... [2022-07-22 14:12:46,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:12:46,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 14:12:46,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 14:12:46,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 14:12:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 14:12:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-07-22 14:12:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-07-22 14:12:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 14:12:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 14:12:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-07-22 14:12:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-22 14:12:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 14:12:46,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 14:12:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-22 14:12:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 14:12:46,502 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 14:12:46,504 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 14:13:01,859 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 14:13:01,863 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 14:13:01,863 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-07-22 14:13:01,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:13:01 BoogieIcfgContainer [2022-07-22 14:13:01,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 14:13:01,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 14:13:01,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 14:13:01,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 14:13:01,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:12:45" (1/3) ... [2022-07-22 14:13:01,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387530ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:13:01, skipping insertion in model container [2022-07-22 14:13:01,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:12:46" (2/3) ... [2022-07-22 14:13:01,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387530ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:13:01, skipping insertion in model container [2022-07-22 14:13:01,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:13:01" (3/3) ... [2022-07-22 14:13:01,869 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2022-07-22 14:13:01,878 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 14:13:01,879 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 14:13:01,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 14:13:01,947 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7fc49fdf, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@f999ee4 [2022-07-22 14:13:01,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 14:13:01,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 38 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:13:01,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 14:13:01,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:13:01,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:13:01,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:13:01,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:13:01,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2022-07-22 14:13:01,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:13:01,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632469424] [2022-07-22 14:13:01,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:13:01,975 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:13:01,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:13:01,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:13:02,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 14:13:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:13:02,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-22 14:13:02,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:13:02,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:13:02,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:13:02,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:13:02,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632469424] [2022-07-22 14:13:02,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632469424] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:13:02,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:13:02,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 14:13:02,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414136975] [2022-07-22 14:13:02,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:13:02,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 14:13:02,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:13:02,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 14:13:02,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:13:02,361 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 38 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:13:02,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:13:02,373 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2022-07-22 14:13:02,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 14:13:02,375 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-22 14:13:02,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:13:02,381 INFO L225 Difference]: With dead ends: 76 [2022-07-22 14:13:02,382 INFO L226 Difference]: Without dead ends: 36 [2022-07-22 14:13:02,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:13:02,389 INFO L413 NwaCegarLoop]: 50 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, 50 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:13:02,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:13:02,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-07-22 14:13:02,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-07-22 14:13:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 35 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:13:02,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2022-07-22 14:13:02,413 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2022-07-22 14:13:02,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:13:02,413 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2022-07-22 14:13:02,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:13:02,414 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2022-07-22 14:13:02,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 14:13:02,414 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:13:02,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:13:02,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-22 14:13:02,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:13:02,617 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:13:02,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:13:02,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2022-07-22 14:13:02,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:13:02,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833099795] [2022-07-22 14:13:02,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:13:02,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:13:02,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:13:02,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:13:02,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 14:13:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:13:02,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 14:13:02,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:13:03,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:13:03,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:13:03,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:13:03,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833099795] [2022-07-22 14:13:03,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833099795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:13:03,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:13:03,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 14:13:03,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603727394] [2022-07-22 14:13:03,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:13:03,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 14:13:03,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:13:03,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 14:13:03,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:13:03,961 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:13:08,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:10,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:13,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:15,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:18,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:21,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:24,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:24,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:13:24,523 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2022-07-22 14:13:24,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 14:13:24,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-22 14:13:24,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:13:24,752 INFO L225 Difference]: With dead ends: 45 [2022-07-22 14:13:24,752 INFO L226 Difference]: Without dead ends: 32 [2022-07-22 14:13:24,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 14:13:24,754 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2022-07-22 14:13:24,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 120 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 7 Unknown, 17 Unchecked, 20.3s Time] [2022-07-22 14:13:24,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-22 14:13:24,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-07-22 14:13:24,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:13:24,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2022-07-22 14:13:24,758 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 13 [2022-07-22 14:13:24,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:13:24,759 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2022-07-22 14:13:24,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:13:24,759 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2022-07-22 14:13:24,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 14:13:24,759 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:13:24,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:13:24,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 14:13:24,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:13:24,968 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:13:24,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:13:24,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1440122883, now seen corresponding path program 1 times [2022-07-22 14:13:24,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:13:24,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137781325] [2022-07-22 14:13:24,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:13:24,969 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:13:24,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:13:24,976 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:13:24,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 14:13:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:13:25,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 14:13:25,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:13:26,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:13:26,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:13:26,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:13:26,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137781325] [2022-07-22 14:13:26,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137781325] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:13:26,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:13:26,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 14:13:26,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382323321] [2022-07-22 14:13:26,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:13:26,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 14:13:26,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:13:26,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 14:13:26,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:13:26,400 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:13:31,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:33,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:35,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:38,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:41,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:44,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:47,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:49,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:13:50,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:13:50,188 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2022-07-22 14:13:50,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 14:13:50,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-22 14:13:50,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:13:50,189 INFO L225 Difference]: With dead ends: 45 [2022-07-22 14:13:50,189 INFO L226 Difference]: Without dead ends: 42 [2022-07-22 14:13:50,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 14:13:50,190 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 33 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2022-07-22 14:13:50,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 108 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 8 Unknown, 0 Unchecked, 23.2s Time] [2022-07-22 14:13:50,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-07-22 14:13:50,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2022-07-22 14:13:50,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:13:50,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2022-07-22 14:13:50,194 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 13 [2022-07-22 14:13:50,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:13:50,195 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2022-07-22 14:13:50,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:13:50,195 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2022-07-22 14:13:50,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-22 14:13:50,195 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:13:50,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:13:50,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-22 14:13:50,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:13:50,405 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:13:50,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:13:50,405 INFO L85 PathProgramCache]: Analyzing trace with hash 893293957, now seen corresponding path program 1 times [2022-07-22 14:13:50,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:13:50,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922285028] [2022-07-22 14:13:50,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:13:50,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:13:50,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:13:50,410 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:13:50,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-22 14:13:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:13:54,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 14:13:54,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:13:55,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:13:55,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:13:55,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:13:55,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922285028] [2022-07-22 14:13:55,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1922285028] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:13:55,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:13:55,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 14:13:55,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448849215] [2022-07-22 14:13:55,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:13:55,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 14:13:55,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:13:55,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 14:13:55,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:13:55,860 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:14:00,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:03,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:05,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:08,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:11,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:14,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:16,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:16,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:14:16,907 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2022-07-22 14:14:17,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 14:14:17,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2022-07-22 14:14:17,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:14:17,172 INFO L225 Difference]: With dead ends: 48 [2022-07-22 14:14:17,172 INFO L226 Difference]: Without dead ends: 34 [2022-07-22 14:14:17,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 14:14:17,173 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 2 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2022-07-22 14:14:17,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 109 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 7 Unknown, 16 Unchecked, 20.7s Time] [2022-07-22 14:14:17,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-07-22 14:14:17,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-07-22 14:14:17,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:14:17,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2022-07-22 14:14:17,176 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 15 [2022-07-22 14:14:17,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:14:17,176 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2022-07-22 14:14:17,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:14:17,176 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2022-07-22 14:14:17,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 14:14:17,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:14:17,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:14:17,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-22 14:14:17,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:14:17,378 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:14:17,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:14:17,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1041172097, now seen corresponding path program 1 times [2022-07-22 14:14:17,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:14:17,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274169595] [2022-07-22 14:14:17,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:14:17,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:14:17,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:14:17,380 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:14:17,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-22 14:14:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:14:21,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 14:14:21,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:14:24,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:14:24,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:14:24,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:14:24,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274169595] [2022-07-22 14:14:24,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274169595] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:14:24,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:14:24,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 14:14:24,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962726492] [2022-07-22 14:14:24,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:14:24,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 14:14:24,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:14:24,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 14:14:24,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 14:14:24,138 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:14:27,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:30,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:33,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:35,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:39,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.85s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:42,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:44,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:44,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:14:44,958 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2022-07-22 14:14:45,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 14:14:45,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2022-07-22 14:14:45,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:14:45,061 INFO L225 Difference]: With dead ends: 54 [2022-07-22 14:14:45,061 INFO L226 Difference]: Without dead ends: 40 [2022-07-22 14:14:45,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 14:14:45,062 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 40 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2022-07-22 14:14:45,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 44 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 7 Unknown, 0 Unchecked, 20.8s Time] [2022-07-22 14:14:45,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-07-22 14:14:45,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2022-07-22 14:14:45,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:14:45,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2022-07-22 14:14:45,066 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 16 [2022-07-22 14:14:45,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:14:45,066 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2022-07-22 14:14:45,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:14:45,066 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2022-07-22 14:14:45,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-22 14:14:45,066 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:14:45,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:14:45,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-22 14:14:45,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:14:45,269 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:14:45,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:14:45,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1453962584, now seen corresponding path program 1 times [2022-07-22 14:14:45,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:14:45,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298200204] [2022-07-22 14:14:45,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:14:45,270 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:14:45,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:14:45,272 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:14:45,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-22 14:14:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:14:45,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-22 14:14:45,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:14:49,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:14:49,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:14:49,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:14:49,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298200204] [2022-07-22 14:14:49,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298200204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:14:49,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:14:49,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 14:14:49,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434705680] [2022-07-22 14:14:49,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:14:49,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 14:14:49,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:14:49,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 14:14:49,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 14:14:49,507 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:14:55,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:14:58,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:15:01,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:15:04,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:15:08,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 14:15:11,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:15:13,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-22 14:15:15,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 14:15:16,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:15:16,050 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2022-07-22 14:15:16,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 14:15:16,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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 17 [2022-07-22 14:15:16,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:15:16,051 INFO L225 Difference]: With dead ends: 40 [2022-07-22 14:15:16,051 INFO L226 Difference]: Without dead ends: 29 [2022-07-22 14:15:16,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-07-22 14:15:16,052 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 26 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2022-07-22 14:15:16,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 211 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 8 Unknown, 8 Unchecked, 23.9s Time] [2022-07-22 14:15:16,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-22 14:15:16,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-07-22 14:15:16,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:15:16,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-07-22 14:15:16,055 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 17 [2022-07-22 14:15:16,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:15:16,055 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-07-22 14:15:16,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:15:16,056 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-07-22 14:15:16,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-22 14:15:16,056 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:15:16,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:15:16,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-22 14:15:16,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:15:16,259 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:15:16,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:15:16,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1839755198, now seen corresponding path program 1 times [2022-07-22 14:15:16,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:15:16,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094914753] [2022-07-22 14:15:16,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:15:16,260 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:15:16,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:15:16,261 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:15:16,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-22 14:15:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:15:20,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 14:15:20,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:15:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:15:22,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:15:22,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:15:22,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094914753] [2022-07-22 14:15:22,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094914753] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:15:22,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:15:22,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 14:15:22,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408716191] [2022-07-22 14:15:22,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:15:22,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 14:15:22,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:15:22,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 14:15:22,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:15:22,051 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:15:22,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:15:22,418 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-07-22 14:15:22,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 14:15:22,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2022-07-22 14:15:22,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:15:22,418 INFO L225 Difference]: With dead ends: 29 [2022-07-22 14:15:22,418 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 14:15:22,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 14:15:22,419 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:15:22,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-07-22 14:15:22,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 14:15:22,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 14:15:22,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:15:22,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 14:15:22,420 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-07-22 14:15:22,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:15:22,420 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 14:15:22,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:15:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 14:15:22,420 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 14:15:22,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 14:15:22,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-22 14:15:22,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:15:22,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 14:15:24,187 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 88) no Hoare annotation was computed. [2022-07-22 14:15:24,188 INFO L899 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2022-07-22 14:15:24,188 INFO L899 garLoopResultBuilder]: For program point L160-2(lines 160 163) no Hoare annotation was computed. [2022-07-22 14:15:24,188 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 14:15:24,188 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 14:15:24,188 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2022-07-22 14:15:24,188 INFO L895 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2022-07-22 14:15:24,188 INFO L899 garLoopResultBuilder]: For program point L78-3(lines 76 89) no Hoare annotation was computed. [2022-07-22 14:15:24,188 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 70 74) no Hoare annotation was computed. [2022-07-22 14:15:24,188 INFO L895 garLoopResultBuilder]: At program point L70-2(lines 70 74) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= |ULTIMATE.start_atan_double_~x#1| (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-22 14:15:24,188 INFO L899 garLoopResultBuilder]: For program point L70-3(lines 70 74) no Hoare annotation was computed. [2022-07-22 14:15:24,188 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-07-22 14:15:24,188 INFO L899 garLoopResultBuilder]: For program point L128(lines 128 133) no Hoare annotation was computed. [2022-07-22 14:15:24,188 INFO L899 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2022-07-22 14:15:24,188 INFO L895 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2022-07-22 14:15:24,188 INFO L895 garLoopResultBuilder]: At program point L145(lines 136 146) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short30#1| (= (_ bv0 32) |ULTIMATE.start___signbit_double_#res#1|)) [2022-07-22 14:15:24,188 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2022-07-22 14:15:24,189 INFO L895 garLoopResultBuilder]: At program point L139-2(lines 139 143) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_atan_double_#res#1|) (= |ULTIMATE.start_atan_double_~x#1| (_ +zero 11 53)) |ULTIMATE.start_main_#t~short30#1| (= |ULTIMATE.start_main_~res~0#1| (_ +zero 11 53)) (= (_ +zero 11 53) |ULTIMATE.start___signbit_double_~x#1|)) [2022-07-22 14:15:24,189 INFO L899 garLoopResultBuilder]: For program point L139-3(lines 139 143) no Hoare annotation was computed. [2022-07-22 14:15:24,189 INFO L899 garLoopResultBuilder]: For program point L98(lines 98 114) no Hoare annotation was computed. [2022-07-22 14:15:24,189 INFO L895 garLoopResultBuilder]: At program point L32(lines 19 33) the Hoare annotation is: false [2022-07-22 14:15:24,189 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 14:15:24,189 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 115) no Hoare annotation was computed. [2022-07-22 14:15:24,189 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 161) no Hoare annotation was computed. [2022-07-22 14:15:24,189 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 113) no Hoare annotation was computed. [2022-07-22 14:15:24,189 INFO L899 garLoopResultBuilder]: For program point L107-2(lines 90 115) no Hoare annotation was computed. [2022-07-22 14:15:24,189 INFO L902 garLoopResultBuilder]: At program point L165(lines 148 166) the Hoare annotation is: true [2022-07-22 14:15:24,189 INFO L899 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2022-07-22 14:15:24,189 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 105) no Hoare annotation was computed. [2022-07-22 14:15:24,189 INFO L899 garLoopResultBuilder]: For program point L132-2(line 132) no Hoare annotation was computed. [2022-07-22 14:15:24,189 INFO L895 garLoopResultBuilder]: At program point L132-3(lines 66 134) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= (_ +zero 11 53) |ULTIMATE.start_atan_double_#res#1|) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= |ULTIMATE.start_atan_double_~x#1| (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-22 14:15:24,193 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 14:15:24,193 INFO L899 garLoopResultBuilder]: For program point L91(lines 91 94) no Hoare annotation was computed. [2022-07-22 14:15:24,193 INFO L899 garLoopResultBuilder]: For program point L91-2(lines 91 94) no Hoare annotation was computed. [2022-07-22 14:15:24,193 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2022-07-22 14:15:24,193 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 31) no Hoare annotation was computed. [2022-07-22 14:15:24,193 INFO L899 garLoopResultBuilder]: For program point L26-1(lines 19 33) no Hoare annotation was computed. [2022-07-22 14:15:24,193 INFO L899 garLoopResultBuilder]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2022-07-22 14:15:24,193 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 89) no Hoare annotation was computed. [2022-07-22 14:15:24,196 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:15:24,197 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 14:15:24,202 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:15:24,206 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:15:24,207 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:15:24,208 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:15:24,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:15:24 BoogieIcfgContainer [2022-07-22 14:15:24,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 14:15:24,209 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 14:15:24,209 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 14:15:24,210 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 14:15:24,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:13:01" (3/4) ... [2022-07-22 14:15:24,212 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 14:15:24,220 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-22 14:15:24,220 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-22 14:15:24,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 14:15:24,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 14:15:24,237 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-22 14:15:24,238 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~Pluszero~LONGDOUBLE() == \result && x == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x [2022-07-22 14:15:24,239 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: aux-res == 0.0 && __signbit_double(res) == 0-aux && 0bv32 == \result [2022-07-22 14:15:24,250 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 14:15:24,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 14:15:24,251 INFO L158 Benchmark]: Toolchain (without parser) took 158302.40ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 37.3MB in the beginning and 46.2MB in the end (delta: -8.9MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2022-07-22 14:15:24,251 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 58.7MB. Free memory is still 40.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:15:24,251 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.31ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 38.3MB in the end (delta: -1.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 14:15:24,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.47ms. Allocated memory is still 58.7MB. Free memory was 38.1MB in the beginning and 35.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:15:24,252 INFO L158 Benchmark]: Boogie Preprocessor took 39.65ms. Allocated memory is still 58.7MB. Free memory was 35.7MB in the beginning and 33.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:15:24,252 INFO L158 Benchmark]: RCFGBuilder took 15507.23ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 33.4MB in the beginning and 38.7MB in the end (delta: -5.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2022-07-22 14:15:24,252 INFO L158 Benchmark]: TraceAbstraction took 142343.38ms. Allocated memory is still 71.3MB. Free memory was 38.3MB in the beginning and 50.5MB in the end (delta: -12.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-07-22 14:15:24,253 INFO L158 Benchmark]: Witness Printer took 41.29ms. Allocated memory is still 71.3MB. Free memory was 50.5MB in the beginning and 46.2MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 14:15:24,254 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 58.7MB. Free memory is still 40.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.31ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 38.3MB in the end (delta: -1.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.47ms. Allocated memory is still 58.7MB. Free memory was 38.1MB in the beginning and 35.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.65ms. Allocated memory is still 58.7MB. Free memory was 35.7MB in the beginning and 33.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 15507.23ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 33.4MB in the beginning and 38.7MB in the end (delta: -5.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * TraceAbstraction took 142343.38ms. Allocated memory is still 71.3MB. Free memory was 38.3MB in the beginning and 50.5MB in the end (delta: -12.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Witness Printer took 41.29ms. Allocated memory is still 71.3MB. Free memory was 50.5MB in the beginning and 46.2MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 161]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 142.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 113.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 37 mSolverCounterUnknown, 105 SdHoareTripleChecker+Valid, 109.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 649 SdHoareTripleChecker+Invalid, 100.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 46 IncrementalHoareTripleChecker+Unchecked, 432 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 217 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 10.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 37, 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, 7 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 60 HoareAnnotationTreeSize, 8 FomulaSimplifications, 73 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 11.5s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 14 QuantifiedInterpolants, 476 SizeOfPredicates, 40 NumberOfNonLiveVariables, 889 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 70]: Loop Invariant [2022-07-22 14:15:24,259 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:15:24,259 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant [2022-07-22 14:15:24,260 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:15:24,260 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && ~Pluszero~LONGDOUBLE() == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: aux-res == 0.0 && __signbit_double(res) == 0-aux && 0bv32 == \result - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: (((~Pluszero~LONGDOUBLE() == \result && x == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x RESULT: Ultimate proved your program to be correct! [2022-07-22 14:15:24,481 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-07-22 14:15:24,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE