./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1091.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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_1091.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 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:46:31,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:46:31,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:46:31,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:46:31,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:46:31,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:46:32,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:46:32,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:46:32,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:46:32,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:46:32,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:46:32,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:46:32,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:46:32,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:46:32,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:46:32,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:46:32,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:46:32,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:46:32,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:46:32,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:46:32,024 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:46:32,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:46:32,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:46:32,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:46:32,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:46:32,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:46:32,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:46:32,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:46:32,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:46:32,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:46:32,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:46:32,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:46:32,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:46:32,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:46:32,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:46:32,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:46:32,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:46:32,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:46:32,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:46:32,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:46:32,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:46:32,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:46:32,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 14:46:32,065 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:46:32,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:46:32,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:46:32,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:46:32,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:46:32,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:46:32,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:46:32,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:46:32,067 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:46:32,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:46:32,068 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:46:32,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 14:46:32,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:46:32,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:46:32,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:46:32,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:46:32,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:46:32,069 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:46:32,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:46:32,069 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:46:32,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:46:32,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:46:32,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:46:32,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:46:32,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:46:32,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:46:32,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:46:32,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:46:32,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 14:46:32,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 14:46:32,072 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:46:32,072 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:46:32,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:46:32,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 [2022-07-13 14:46:32,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:46:32,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:46:32,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:46:32,335 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:46:32,336 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:46:32,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2022-07-13 14:46:32,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/939fd52f3/40eb0f9aeb5e40b79eb410070acab415/FLAGa93922aaa [2022-07-13 14:46:32,717 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:46:32,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2022-07-13 14:46:32,724 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/939fd52f3/40eb0f9aeb5e40b79eb410070acab415/FLAGa93922aaa [2022-07-13 14:46:33,133 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/939fd52f3/40eb0f9aeb5e40b79eb410070acab415 [2022-07-13 14:46:33,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:46:33,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:46:33,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:46:33,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:46:33,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:46:33,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:46:33" (1/1) ... [2022-07-13 14:46:33,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f184342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:33, skipping insertion in model container [2022-07-13 14:46:33,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:46:33" (1/1) ... [2022-07-13 14:46:33,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:46:33,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:46:33,284 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_1091.c[2108,2121] [2022-07-13 14:46:33,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:46:33,292 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:46:33,311 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_1091.c[2108,2121] [2022-07-13 14:46:33,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:46:33,321 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:46:33,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:33 WrapperNode [2022-07-13 14:46:33,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:46:33,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:46:33,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:46:33,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:46:33,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:33" (1/1) ... [2022-07-13 14:46:33,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:33" (1/1) ... [2022-07-13 14:46:33,376 INFO L137 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2022-07-13 14:46:33,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:46:33,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:46:33,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:46:33,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:46:33,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:33" (1/1) ... [2022-07-13 14:46:33,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:33" (1/1) ... [2022-07-13 14:46:33,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:33" (1/1) ... [2022-07-13 14:46:33,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:33" (1/1) ... [2022-07-13 14:46:33,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:33" (1/1) ... [2022-07-13 14:46:33,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:33" (1/1) ... [2022-07-13 14:46:33,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:33" (1/1) ... [2022-07-13 14:46:33,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:46:33,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:46:33,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:46:33,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:46:33,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:33" (1/1) ... [2022-07-13 14:46:33,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:46:33,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:46:33,493 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) [2022-07-13 14:46:33,510 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 [2022-07-13 14:46:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:46:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 14:46:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 14:46:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-13 14:46:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 14:46:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-13 14:46:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:46:33,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:46:33,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 14:46:33,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 14:46:33,590 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:46:33,591 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:46:33,871 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:46:33,876 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:46:33,876 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-13 14:46:33,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:46:33 BoogieIcfgContainer [2022-07-13 14:46:33,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:46:33,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:46:33,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:46:33,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:46:33,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:46:33" (1/3) ... [2022-07-13 14:46:33,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db4d405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:46:33, skipping insertion in model container [2022-07-13 14:46:33,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:33" (2/3) ... [2022-07-13 14:46:33,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db4d405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:46:33, skipping insertion in model container [2022-07-13 14:46:33,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:46:33" (3/3) ... [2022-07-13 14:46:33,888 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2022-07-13 14:46:33,902 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:46:33,902 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:46:33,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:46:33,950 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@25b4df58, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5502c7a1 [2022-07-13 14:46:33,951 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:46:33,954 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 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) [2022-07-13 14:46:33,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 14:46:33,959 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:46:33,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:46:33,960 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:46:33,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:46:33,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2022-07-13 14:46:33,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:46:33,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301953832] [2022-07-13 14:46:33,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:46:33,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:46:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:46:34,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:46:34,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:46:34,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301953832] [2022-07-13 14:46:34,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301953832] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:46:34,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:46:34,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:46:34,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600025269] [2022-07-13 14:46:34,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:46:34,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:46:34,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:46:34,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:46:34,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:46:34,101 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 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) [2022-07-13 14:46:34,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:46:34,121 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2022-07-13 14:46:34,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:46:34,123 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 [2022-07-13 14:46:34,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:46:34,129 INFO L225 Difference]: With dead ends: 66 [2022-07-13 14:46:34,130 INFO L226 Difference]: Without dead ends: 31 [2022-07-13 14:46:34,132 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 [2022-07-13 14:46:34,134 INFO L413 NwaCegarLoop]: 48 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, 48 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 [2022-07-13 14:46:34,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:46:34,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-13 14:46:34,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-07-13 14:46:34,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 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) [2022-07-13 14:46:34,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2022-07-13 14:46:34,160 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2022-07-13 14:46:34,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:46:34,161 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2022-07-13 14:46:34,161 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) [2022-07-13 14:46:34,161 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2022-07-13 14:46:34,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 14:46:34,161 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:46:34,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:46:34,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 14:46:34,162 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:46:34,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:46:34,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2022-07-13 14:46:34,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:46:34,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485294889] [2022-07-13 14:46:34,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:46:34,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:46:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:46:34,299 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 14:46:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:46:34,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 14:46:34,416 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 14:46:34,419 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:46:34,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 14:46:34,429 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 14:46:34,433 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:46:34,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:46:34 BoogieIcfgContainer [2022-07-13 14:46:34,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:46:34,468 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:46:34,468 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:46:34,469 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:46:34,469 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:46:33" (3/4) ... [2022-07-13 14:46:34,472 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 14:46:34,473 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:46:34,474 INFO L158 Benchmark]: Toolchain (without parser) took 1337.54ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 85.3MB in the beginning and 111.8MB in the end (delta: -26.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-07-13 14:46:34,475 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:46:34,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.96ms. Allocated memory is still 113.2MB. Free memory was 85.3MB in the beginning and 86.8MB in the end (delta: -1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:46:34,479 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.85ms. Allocated memory is still 113.2MB. Free memory was 86.8MB in the beginning and 84.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:46:34,482 INFO L158 Benchmark]: Boogie Preprocessor took 66.45ms. Allocated memory is still 113.2MB. Free memory was 84.4MB in the beginning and 82.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:46:34,482 INFO L158 Benchmark]: RCFGBuilder took 434.13ms. Allocated memory is still 113.2MB. Free memory was 82.3MB in the beginning and 65.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-13 14:46:34,483 INFO L158 Benchmark]: TraceAbstraction took 588.20ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 65.2MB in the beginning and 111.8MB in the end (delta: -46.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:46:34,483 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 144.7MB. Free memory is still 111.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:46:34,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.96ms. Allocated memory is still 113.2MB. Free memory was 85.3MB in the beginning and 86.8MB in the end (delta: -1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.85ms. Allocated memory is still 113.2MB. Free memory was 86.8MB in the beginning and 84.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.45ms. Allocated memory is still 113.2MB. Free memory was 84.4MB in the beginning and 82.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.13ms. Allocated memory is still 113.2MB. Free memory was 82.3MB in the beginning and 65.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 588.20ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 65.2MB in the beginning and 111.8MB in the end (delta: -46.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 144.7MB. Free memory is still 111.8MB. 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: 97]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 43, overapproximation of bitwiseOr at line 44, overapproximation of someBinaryArithmeticDOUBLEoperation at line 92, overapproximation of bitwiseAnd at line 44, overapproximation of someBinaryDOUBLEComparisonOperation at line 17. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] double x = 0.0 / 0.0; [L93] CALL, EXPR ceil_double(x) [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=6291456, i1=0, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L31] COND TRUE j0 < 20 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=6291456, i1=0, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L32] COND FALSE !(j0 < 0) [L43] i = (0x000fffff) >> j0 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i=6291456, i0=6291456, i1=0, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L44] COND TRUE ((i0 & i) | i1) == 0 [L45] return x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, \result=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i=6291456, i0=6291456, i1=0, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L93] RET, EXPR ceil_double(x) [L93] double res = ceil_double(x); [L96] CALL, EXPR isnan_double(res) [L17] return x != x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L96] RET, EXPR isnan_double(res) [L96] COND TRUE !isnan_double(res) [L97] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 48 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-13 14:46:34,531 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_1091.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 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:46:36,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:46:36,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:46:36,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:46:36,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:46:36,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:46:36,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:46:36,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:46:36,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:46:36,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:46:36,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:46:36,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:46:36,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:46:36,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:46:36,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:46:36,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:46:36,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:46:36,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:46:36,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:46:36,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:46:36,402 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:46:36,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:46:36,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:46:36,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:46:36,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:46:36,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:46:36,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:46:36,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:46:36,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:46:36,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:46:36,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:46:36,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:46:36,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:46:36,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:46:36,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:46:36,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:46:36,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:46:36,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:46:36,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:46:36,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:46:36,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:46:36,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:46:36,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 14:46:36,451 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:46:36,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:46:36,453 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:46:36,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:46:36,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:46:36,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:46:36,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:46:36,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:46:36,455 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:46:36,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:46:36,456 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:46:36,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:46:36,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:46:36,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:46:36,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:46:36,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:46:36,457 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 14:46:36,457 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 14:46:36,458 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 14:46:36,458 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:46:36,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:46:36,458 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:46:36,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:46:36,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:46:36,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:46:36,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:46:36,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:46:36,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:46:36,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:46:36,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:46:36,460 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 14:46:36,460 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 14:46:36,460 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:46:36,460 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:46:36,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:46:36,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 14:46:36,461 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 [2022-07-13 14:46:36,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:46:36,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:46:36,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:46:36,760 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:46:36,761 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:46:36,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2022-07-13 14:46:36,803 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65838231a/440437ff89bd40f299ab47df92b73f34/FLAG1905f7064 [2022-07-13 14:46:37,137 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:46:37,138 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2022-07-13 14:46:37,142 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65838231a/440437ff89bd40f299ab47df92b73f34/FLAG1905f7064 [2022-07-13 14:46:37,566 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65838231a/440437ff89bd40f299ab47df92b73f34 [2022-07-13 14:46:37,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:46:37,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:46:37,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:46:37,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:46:37,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:46:37,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:46:37" (1/1) ... [2022-07-13 14:46:37,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bd6612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:37, skipping insertion in model container [2022-07-13 14:46:37,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:46:37" (1/1) ... [2022-07-13 14:46:37,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:46:37,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:46:37,740 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_1091.c[2108,2121] [2022-07-13 14:46:37,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:46:37,749 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:46:37,818 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_1091.c[2108,2121] [2022-07-13 14:46:37,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:46:37,831 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:46:37,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:37 WrapperNode [2022-07-13 14:46:37,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:46:37,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:46:37,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:46:37,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:46:37,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:37" (1/1) ... [2022-07-13 14:46:37,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:37" (1/1) ... [2022-07-13 14:46:37,873 INFO L137 Inliner]: procedures = 19, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2022-07-13 14:46:37,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:46:37,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:46:37,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:46:37,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:46:37,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:37" (1/1) ... [2022-07-13 14:46:37,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:37" (1/1) ... [2022-07-13 14:46:37,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:37" (1/1) ... [2022-07-13 14:46:37,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:37" (1/1) ... [2022-07-13 14:46:37,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:37" (1/1) ... [2022-07-13 14:46:37,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:37" (1/1) ... [2022-07-13 14:46:37,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:37" (1/1) ... [2022-07-13 14:46:37,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:46:37,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:46:37,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:46:37,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:46:37,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:37" (1/1) ... [2022-07-13 14:46:37,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:46:37,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:46:37,964 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) [2022-07-13 14:46:37,975 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 [2022-07-13 14:46:37,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:46:38,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-07-13 14:46:38,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-07-13 14:46:38,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 14:46:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 14:46:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-13 14:46:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:46:38,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:46:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-13 14:46:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 14:46:38,072 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:46:38,073 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:46:39,571 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:46:39,575 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:46:39,575 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-13 14:46:39,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:46:39 BoogieIcfgContainer [2022-07-13 14:46:39,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:46:39,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:46:39,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:46:39,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:46:39,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:46:37" (1/3) ... [2022-07-13 14:46:39,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5fd254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:46:39, skipping insertion in model container [2022-07-13 14:46:39,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:46:37" (2/3) ... [2022-07-13 14:46:39,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5fd254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:46:39, skipping insertion in model container [2022-07-13 14:46:39,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:46:39" (3/3) ... [2022-07-13 14:46:39,583 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2022-07-13 14:46:39,594 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:46:39,594 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:46:39,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:46:39,647 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@7b5a5c80, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1da731c7 [2022-07-13 14:46:39,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:46:39,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 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) [2022-07-13 14:46:39,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 14:46:39,657 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:46:39,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:46:39,659 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:46:39,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:46:39,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2022-07-13 14:46:39,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:46:39,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524748629] [2022-07-13 14:46:39,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:46:39,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:46:39,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:46:39,685 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) [2022-07-13 14:46:39,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 14:46:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:46:39,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 14:46:39,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:46:39,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:46:39,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:46:39,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:46:39,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524748629] [2022-07-13 14:46:39,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524748629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:46:39,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:46:39,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:46:39,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646577877] [2022-07-13 14:46:39,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:46:39,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:46:39,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:46:39,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:46:39,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:46:39,857 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 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) [2022-07-13 14:46:39,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:46:39,873 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2022-07-13 14:46:39,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:46:39,875 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 [2022-07-13 14:46:39,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:46:39,881 INFO L225 Difference]: With dead ends: 66 [2022-07-13 14:46:39,886 INFO L226 Difference]: Without dead ends: 31 [2022-07-13 14:46:39,889 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 [2022-07-13 14:46:39,894 INFO L413 NwaCegarLoop]: 48 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, 48 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 [2022-07-13 14:46:39,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:46:39,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-13 14:46:39,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-07-13 14:46:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 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) [2022-07-13 14:46:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2022-07-13 14:46:39,933 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2022-07-13 14:46:39,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:46:39,934 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2022-07-13 14:46:39,934 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) [2022-07-13 14:46:39,934 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2022-07-13 14:46:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 14:46:39,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:46:39,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:46:39,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-13 14:46:40,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:46:40,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:46:40,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:46:40,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2022-07-13 14:46:40,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:46:40,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909764114] [2022-07-13 14:46:40,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:46:40,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:46:40,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:46:40,149 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) [2022-07-13 14:46:40,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 14:46:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:46:40,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 14:46:40,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:46:40,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:46:40,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:46:40,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:46:40,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909764114] [2022-07-13 14:46:40,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909764114] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:46:40,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:46:40,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 14:46:40,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919882476] [2022-07-13 14:46:40,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:46:40,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 14:46:40,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:46:40,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 14:46:40,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 14:46:40,398 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-07-13 14:46:40,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:46:40,427 INFO L93 Difference]: Finished difference Result 36 states and 49 transitions. [2022-07-13 14:46:40,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 14:46:40,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2022-07-13 14:46:40,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:46:40,428 INFO L225 Difference]: With dead ends: 36 [2022-07-13 14:46:40,428 INFO L226 Difference]: Without dead ends: 31 [2022-07-13 14:46:40,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:46:40,429 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:46:40,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 145 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-07-13 14:46:40,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-13 14:46:40,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-07-13 14:46:40,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 30 states have internal predecessors, (44), 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) [2022-07-13 14:46:40,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2022-07-13 14:46:40,436 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 44 transitions. Word has length 12 [2022-07-13 14:46:40,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:46:40,436 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 44 transitions. [2022-07-13 14:46:40,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-07-13 14:46:40,436 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2022-07-13 14:46:40,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 14:46:40,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:46:40,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:46:40,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-13 14:46:40,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:46:40,638 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:46:40,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:46:40,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1803097798, now seen corresponding path program 1 times [2022-07-13 14:46:40,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:46:40,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316335141] [2022-07-13 14:46:40,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:46:40,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:46:40,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:46:40,641 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) [2022-07-13 14:46:40,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-13 14:46:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:46:40,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 14:46:40,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:46:40,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:46:40,854 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:46:40,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:46:40,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316335141] [2022-07-13 14:46:40,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316335141] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:46:40,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:46:40,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 14:46:40,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851007359] [2022-07-13 14:46:40,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:46:40,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 14:46:40,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:46:40,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 14:46:40,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 14:46:40,857 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-07-13 14:46:40,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:46:40,890 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2022-07-13 14:46:40,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 14:46:40,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2022-07-13 14:46:40,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:46:40,891 INFO L225 Difference]: With dead ends: 36 [2022-07-13 14:46:40,892 INFO L226 Difference]: Without dead ends: 31 [2022-07-13 14:46:40,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:46:40,893 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:46:40,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 145 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2022-07-13 14:46:40,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-13 14:46:40,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-07-13 14:46:40,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 30 states have internal predecessors, (43), 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) [2022-07-13 14:46:40,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2022-07-13 14:46:40,896 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 12 [2022-07-13 14:46:40,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:46:40,896 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2022-07-13 14:46:40,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-07-13 14:46:40,896 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2022-07-13 14:46:40,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 14:46:40,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:46:40,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:46:40,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-13 14:46:41,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:46:41,097 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:46:41,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:46:41,098 INFO L85 PathProgramCache]: Analyzing trace with hash -2009966502, now seen corresponding path program 1 times [2022-07-13 14:46:41,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:46:41,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260610829] [2022-07-13 14:46:41,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:46:41,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:46:41,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:46:41,100 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) [2022-07-13 14:46:41,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-13 14:46:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:46:41,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 14:46:41,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:46:41,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:46:41,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:46:41,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:46:41,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260610829] [2022-07-13 14:46:41,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260610829] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:46:41,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:46:41,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 14:46:41,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608822818] [2022-07-13 14:46:41,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:46:41,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 14:46:41,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:46:41,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 14:46:41,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:46:41,279 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-07-13 14:46:41,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:46:41,749 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2022-07-13 14:46:41,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 14:46:41,750 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2022-07-13 14:46:41,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:46:41,750 INFO L225 Difference]: With dead ends: 42 [2022-07-13 14:46:41,750 INFO L226 Difference]: Without dead ends: 21 [2022-07-13 14:46:41,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-13 14:46:41,752 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 14:46:41,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 68 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 14:46:41,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-07-13 14:46:41,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-07-13 14:46:41,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:46:41,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-07-13 14:46:41,754 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2022-07-13 14:46:41,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:46:41,754 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-07-13 14:46:41,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-07-13 14:46:41,755 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-07-13 14:46:41,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-13 14:46:41,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:46:41,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:46:41,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-13 14:46:41,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:46:41,973 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:46:41,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:46:41,974 INFO L85 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2022-07-13 14:46:41,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:46:41,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567879943] [2022-07-13 14:46:41,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:46:41,975 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:46:41,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:46:41,976 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) [2022-07-13 14:46:41,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-13 14:46:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:46:42,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 14:46:42,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:46:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:46:42,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:46:42,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:46:42,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567879943] [2022-07-13 14:46:42,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567879943] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:46:42,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:46:42,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 14:46:42,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721816331] [2022-07-13 14:46:42,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:46:42,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 14:46:42,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:46:42,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 14:46:42,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:46:42,246 INFO L87 Difference]: Start difference. First operand 21 states and 22 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) [2022-07-13 14:46:42,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:46:42,247 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2022-07-13 14:46:42,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 14:46:42,247 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 [2022-07-13 14:46:42,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:46:42,247 INFO L225 Difference]: With dead ends: 29 [2022-07-13 14:46:42,247 INFO L226 Difference]: Without dead ends: 17 [2022-07-13 14:46:42,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:46:42,248 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:46:42,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 10 Unchecked, 0.0s Time] [2022-07-13 14:46:42,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-13 14:46:42,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-13 14:46:42,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0) internal successors, (16), 16 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) [2022-07-13 14:46:42,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2022-07-13 14:46:42,250 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 15 [2022-07-13 14:46:42,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:46:42,250 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2022-07-13 14:46:42,251 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) [2022-07-13 14:46:42,251 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2022-07-13 14:46:42,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-13 14:46:42,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:46:42,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:46:42,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-13 14:46:42,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:46:42,467 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:46:42,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:46:42,467 INFO L85 PathProgramCache]: Analyzing trace with hash 101523525, now seen corresponding path program 1 times [2022-07-13 14:46:42,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:46:42,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454154036] [2022-07-13 14:46:42,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:46:42,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:46:42,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:46:42,470 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) [2022-07-13 14:46:42,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-13 14:46:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:46:42,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 14:46:42,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:46:42,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:46:42,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:46:42,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:46:42,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454154036] [2022-07-13 14:46:42,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454154036] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:46:42,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:46:42,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 14:46:42,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591634339] [2022-07-13 14:46:42,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:46:42,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 14:46:42,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:46:42,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 14:46:42,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:46:42,738 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2022-07-13 14:46:42,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:46:42,739 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2022-07-13 14:46:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 14:46:42,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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 [2022-07-13 14:46:42,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:46:42,740 INFO L225 Difference]: With dead ends: 17 [2022-07-13 14:46:42,740 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 14:46:42,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:46:42,741 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:46:42,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-07-13 14:46:42,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 14:46:42,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 14:46:42,742 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) [2022-07-13 14:46:42,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 14:46:42,742 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-07-13 14:46:42,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:46:42,743 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 14:46:42,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2022-07-13 14:46:42,743 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 14:46:42,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 14:46:42,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:46:42,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-13 14:46:42,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:46:42,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 14:46:43,007 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 61) no Hoare annotation was computed. [2022-07-13 14:46:43,007 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 75) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 74) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 51) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 99) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 71) no Hoare annotation was computed. [2022-07-13 14:46:43,008 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 75) no Hoare annotation was computed. [2022-07-13 14:46:43,009 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 52) no Hoare annotation was computed. [2022-07-13 14:46:43,009 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 14:46:43,009 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2022-07-13 14:46:43,009 INFO L899 garLoopResultBuilder]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2022-07-13 14:46:43,009 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 29) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_ceil_double_~x#1| (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-13 14:46:43,009 INFO L899 garLoopResultBuilder]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2022-07-13 14:46:43,009 INFO L895 garLoopResultBuilder]: At program point L82(lines 21 83) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start_ceil_double_#res#1|)) [2022-07-13 14:46:43,009 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 41) no Hoare annotation was computed. [2022-07-13 14:46:43,009 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 14:46:43,009 INFO L895 garLoopResultBuilder]: At program point L17(line 17) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res#1|) [2022-07-13 14:46:43,009 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 40) no Hoare annotation was computed. [2022-07-13 14:46:43,010 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 81) no Hoare annotation was computed. [2022-07-13 14:46:43,010 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2022-07-13 14:46:43,010 INFO L899 garLoopResultBuilder]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2022-07-13 14:46:43,010 INFO L902 garLoopResultBuilder]: At program point L101(lines 85 102) the Hoare annotation is: true [2022-07-13 14:46:43,010 INFO L899 garLoopResultBuilder]: For program point L68(lines 68 69) no Hoare annotation was computed. [2022-07-13 14:46:43,010 INFO L899 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2022-07-13 14:46:43,012 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-13 14:46:43,014 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:46:43,022 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:46:43,022 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:46:43,023 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:46:43,023 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:46:43,023 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:46:43,023 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:46:43,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:46:43 BoogieIcfgContainer [2022-07-13 14:46:43,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:46:43,024 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:46:43,024 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:46:43,024 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:46:43,025 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:46:39" (3/4) ... [2022-07-13 14:46:43,027 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 14:46:43,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-07-13 14:46:43,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-07-13 14:46:43,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 14:46:43,034 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 14:46:43,050 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-07-13 14:46:43,051 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) [2022-07-13 14:46:43,051 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == \result [2022-07-13 14:46:43,058 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 14:46:43,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:46:43,059 INFO L158 Benchmark]: Toolchain (without parser) took 5488.54ms. Allocated memory was 50.3MB in the beginning and 65.0MB in the end (delta: 14.7MB). Free memory was 28.1MB in the beginning and 32.0MB in the end (delta: -3.9MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2022-07-13 14:46:43,059 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 50.3MB. Free memory was 33.3MB in the beginning and 33.2MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:46:43,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.00ms. Allocated memory was 50.3MB in the beginning and 65.0MB in the end (delta: 14.7MB). Free memory was 27.9MB in the beginning and 47.8MB in the end (delta: -19.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-07-13 14:46:43,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.74ms. Allocated memory is still 65.0MB. Free memory was 47.8MB in the beginning and 46.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:46:43,059 INFO L158 Benchmark]: Boogie Preprocessor took 48.24ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 44.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:46:43,060 INFO L158 Benchmark]: RCFGBuilder took 1653.13ms. Allocated memory is still 65.0MB. Free memory was 44.5MB in the beginning and 46.8MB in the end (delta: -2.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-13 14:46:43,060 INFO L158 Benchmark]: TraceAbstraction took 3446.06ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 35.1MB in the end (delta: 11.1MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-07-13 14:46:43,060 INFO L158 Benchmark]: Witness Printer took 34.13ms. Allocated memory is still 65.0MB. Free memory was 35.1MB in the beginning and 32.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 14:46:43,063 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 50.3MB. Free memory was 33.3MB in the beginning and 33.2MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.00ms. Allocated memory was 50.3MB in the beginning and 65.0MB in the end (delta: 14.7MB). Free memory was 27.9MB in the beginning and 47.8MB in the end (delta: -19.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.74ms. Allocated memory is still 65.0MB. Free memory was 47.8MB in the beginning and 46.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.24ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 44.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1653.13ms. Allocated memory is still 65.0MB. Free memory was 44.5MB in the beginning and 46.8MB in the end (delta: -2.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3446.06ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 35.1MB in the end (delta: 11.1MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Witness Printer took 34.13ms. Allocated memory is still 65.0MB. Free memory was 35.1MB in the beginning and 32.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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: 97]: 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, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 457 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 50 IncrementalHoareTripleChecker+Unchecked, 313 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 144 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 31, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 22 HoareAnnotationTreeSize, 4 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 72 ConstructedInterpolants, 23 QuantifiedInterpolants, 384 SizeOfPredicates, 41 NumberOfNonLiveVariables, 293 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 17]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2022-07-13 14:46:43,079 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:46:43,079 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-13 14:46:43,079 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:46:43,079 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 21]: Loop Invariant [2022-07-13 14:46:43,080 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-13 14:46:43,080 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) RESULT: Ultimate proved your program to be correct! [2022-07-13 14:46:43,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE