./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1092a.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 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 14:24:51,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 14:24:51,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 14:24:51,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 14:24:51,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 14:24:51,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 14:24:51,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 14:24:52,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 14:24:52,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 14:24:52,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 14:24:52,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 14:24:52,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 14:24:52,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 14:24:52,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 14:24:52,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 14:24:52,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 14:24:52,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 14:24:52,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 14:24:52,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 14:24:52,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 14:24:52,013 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 14:24:52,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 14:24:52,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 14:24:52,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 14:24:52,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 14:24:52,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 14:24:52,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 14:24:52,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 14:24:52,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 14:24:52,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 14:24:52,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 14:24:52,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 14:24:52,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 14:24:52,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 14:24:52,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 14:24:52,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 14:24:52,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 14:24:52,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 14:24:52,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 14:24:52,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 14:24:52,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 14:24:52,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 14:24:52,050 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 14:24:52,069 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 14:24:52,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 14:24:52,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 14:24:52,079 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 14:24:52,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 14:24:52,080 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 14:24:52,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 14:24:52,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 14:24:52,081 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 14:24:52,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 14:24:52,082 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 14:24:52,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 14:24:52,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 14:24:52,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 14:24:52,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 14:24:52,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 14:24:52,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 14:24:52,083 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 14:24:52,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 14:24:52,083 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 14:24:52,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 14:24:52,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 14:24:52,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 14:24:52,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 14:24:52,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:24:52,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 14:24:52,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 14:24:52,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 14:24:52,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 14:24:52,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 14:24:52,085 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 14:24:52,085 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 14:24:52,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 14:24:52,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 [2022-07-22 14:24:52,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 14:24:52,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 14:24:52,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 14:24:52,370 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 14:24:52,371 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 14:24:52,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2022-07-22 14:24:52,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff81c4d1/8e84d27bb5ff445ca4d22ee259f09488/FLAG52bb2fef4 [2022-07-22 14:24:52,841 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 14:24:52,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2022-07-22 14:24:52,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff81c4d1/8e84d27bb5ff445ca4d22ee259f09488/FLAG52bb2fef4 [2022-07-22 14:24:52,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff81c4d1/8e84d27bb5ff445ca4d22ee259f09488 [2022-07-22 14:24:52,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 14:24:52,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 14:24:52,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 14:24:52,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 14:24:52,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 14:24:52,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:24:52" (1/1) ... [2022-07-22 14:24:52,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552908dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:52, skipping insertion in model container [2022-07-22 14:24:52,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:24:52" (1/1) ... [2022-07-22 14:24:52,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 14:24:52,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 14:24:53,112 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_1092a.c[2110,2123] [2022-07-22 14:24:53,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:24:53,131 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 14:24:53,176 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_1092a.c[2110,2123] [2022-07-22 14:24:53,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:24:53,193 INFO L208 MainTranslator]: Completed translation [2022-07-22 14:24:53,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:53 WrapperNode [2022-07-22 14:24:53,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 14:24:53,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 14:24:53,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 14:24:53,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 14:24:53,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:53" (1/1) ... [2022-07-22 14:24:53,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:53" (1/1) ... [2022-07-22 14:24:53,258 INFO L137 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2022-07-22 14:24:53,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 14:24:53,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 14:24:53,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 14:24:53,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 14:24:53,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:53" (1/1) ... [2022-07-22 14:24:53,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:53" (1/1) ... [2022-07-22 14:24:53,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:53" (1/1) ... [2022-07-22 14:24:53,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:53" (1/1) ... [2022-07-22 14:24:53,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:53" (1/1) ... [2022-07-22 14:24:53,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:53" (1/1) ... [2022-07-22 14:24:53,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:53" (1/1) ... [2022-07-22 14:24:53,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 14:24:53,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 14:24:53,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 14:24:53,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 14:24:53,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:53" (1/1) ... [2022-07-22 14:24:53,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:24:53,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 14:24:53,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 14:24:53,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 14:24:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 14:24:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 14:24:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 14:24:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-22 14:24:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 14:24:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-22 14:24:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 14:24:53,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 14:24:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 14:24:53,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 14:24:53,415 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 14:24:53,417 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 14:24:53,690 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 14:24:53,696 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 14:24:53,696 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-22 14:24:53,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:24:53 BoogieIcfgContainer [2022-07-22 14:24:53,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 14:24:53,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 14:24:53,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 14:24:53,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 14:24:53,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:24:52" (1/3) ... [2022-07-22 14:24:53,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e9b506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:24:53, skipping insertion in model container [2022-07-22 14:24:53,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:53" (2/3) ... [2022-07-22 14:24:53,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e9b506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:24:53, skipping insertion in model container [2022-07-22 14:24:53,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:24:53" (3/3) ... [2022-07-22 14:24:53,706 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2022-07-22 14:24:53,719 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 14:24:53,720 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 14:24:53,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 14:24:53,768 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@410c0433, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5992a815 [2022-07-22 14:24:53,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 14:24:53,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:24:53,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-22 14:24:53,779 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:24:53,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:24:53,780 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:24:53,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:24:53,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2022-07-22 14:24:53,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:24:53,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464025880] [2022-07-22 14:24:53,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:24:53,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:24:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:24:53,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:24:53,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 14:24:53,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464025880] [2022-07-22 14:24:53,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464025880] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:24:53,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:24:53,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 14:24:53,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097013819] [2022-07-22 14:24:53,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:24:53,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 14:24:53,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 14:24:54,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 14:24:54,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:24:54,007 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:24:54,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:24:54,022 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2022-07-22 14:24:54,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 14:24:54,024 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-22 14:24:54,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:24:54,031 INFO L225 Difference]: With dead ends: 64 [2022-07-22 14:24:54,032 INFO L226 Difference]: Without dead ends: 30 [2022-07-22 14:24:54,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:24:54,038 INFO L413 NwaCegarLoop]: 47 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, 47 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:24:54,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:24:54,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-22 14:24:54,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-07-22 14:24:54,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 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) [2022-07-22 14:24:54,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2022-07-22 14:24:54,068 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2022-07-22 14:24:54,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:24:54,068 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2022-07-22 14:24:54,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:24:54,069 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2022-07-22 14:24:54,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 14:24:54,069 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:24:54,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:24:54,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 14:24:54,070 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:24:54,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:24:54,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2022-07-22 14:24:54,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:24:54,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394069927] [2022-07-22 14:24:54,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:24:54,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:24:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 14:24:54,196 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 14:24:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 14:24:54,271 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 14:24:54,271 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 14:24:54,273 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 14:24:54,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 14:24:54,279 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 14:24:54,282 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 14:24:54,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:24:54 BoogieIcfgContainer [2022-07-22 14:24:54,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 14:24:54,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 14:24:54,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 14:24:54,305 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 14:24:54,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:24:53" (3/4) ... [2022-07-22 14:24:54,308 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 14:24:54,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 14:24:54,310 INFO L158 Benchmark]: Toolchain (without parser) took 1438.11ms. Allocated memory was 83.9MB in the beginning and 111.1MB in the end (delta: 27.3MB). Free memory was 45.9MB in the beginning and 64.0MB in the end (delta: -18.0MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-07-22 14:24:54,310 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:24:54,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.53ms. Allocated memory was 83.9MB in the beginning and 111.1MB in the end (delta: 27.3MB). Free memory was 45.7MB in the beginning and 90.7MB in the end (delta: -45.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-22 14:24:54,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.91ms. Allocated memory is still 111.1MB. Free memory was 90.7MB in the beginning and 88.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:24:54,311 INFO L158 Benchmark]: Boogie Preprocessor took 30.83ms. Allocated memory is still 111.1MB. Free memory was 88.3MB in the beginning and 86.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:24:54,312 INFO L158 Benchmark]: RCFGBuilder took 407.25ms. Allocated memory is still 111.1MB. Free memory was 86.8MB in the beginning and 70.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-22 14:24:54,312 INFO L158 Benchmark]: TraceAbstraction took 604.08ms. Allocated memory is still 111.1MB. Free memory was 69.4MB in the beginning and 64.5MB in the end (delta: 4.8MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2022-07-22 14:24:54,313 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 111.1MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:24:54,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.53ms. Allocated memory was 83.9MB in the beginning and 111.1MB in the end (delta: 27.3MB). Free memory was 45.7MB in the beginning and 90.7MB in the end (delta: -45.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.91ms. Allocated memory is still 111.1MB. Free memory was 90.7MB in the beginning and 88.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.83ms. Allocated memory is still 111.1MB. Free memory was 88.3MB in the beginning and 86.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.25ms. Allocated memory is still 111.1MB. Free memory was 86.8MB in the beginning and 70.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 604.08ms. Allocated memory is still 111.1MB. Free memory was 69.4MB in the beginning and 64.5MB in the end (delta: 4.8MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 111.1MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 98]: 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 someUnaryDOUBLEoperation at line 93, overapproximation of bitwiseAnd at line 44, overapproximation of someBinaryDOUBLEComparisonOperation at line 97. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = -0.0; [L94] CALL, EXPR ceil_double(x) [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [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)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-3, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L31] COND TRUE j0 < 20 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-3, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L32] COND FALSE !(j0 < 0) [L43] i = (0x000fffff) >> j0 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i=0, i0=-2, i1=-3, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L44] COND TRUE ((i0 & i) | i1) == 0 [L45] return x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, \result=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i=0, i0=-2, i1=-3, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L94] RET, EXPR ceil_double(x) [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L98] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 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, 47 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, 47 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=33occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-22 14:24:54,355 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_1092a.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 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 14:24:56,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 14:24:56,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 14:24:56,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 14:24:56,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 14:24:56,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 14:24:56,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 14:24:56,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 14:24:56,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 14:24:56,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 14:24:56,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 14:24:56,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 14:24:56,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 14:24:56,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 14:24:56,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 14:24:56,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 14:24:56,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 14:24:56,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 14:24:56,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 14:24:56,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 14:24:56,499 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 14:24:56,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 14:24:56,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 14:24:56,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 14:24:56,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 14:24:56,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 14:24:56,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 14:24:56,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 14:24:56,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 14:24:56,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 14:24:56,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 14:24:56,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 14:24:56,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 14:24:56,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 14:24:56,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 14:24:56,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 14:24:56,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 14:24:56,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 14:24:56,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 14:24:56,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 14:24:56,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 14:24:56,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 14:24:56,543 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-22 14:24:56,575 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 14:24:56,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 14:24:56,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 14:24:56,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 14:24:56,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 14:24:56,578 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 14:24:56,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 14:24:56,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 14:24:56,579 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 14:24:56,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 14:24:56,580 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 14:24:56,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 14:24:56,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 14:24:56,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 14:24:56,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 14:24:56,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 14:24:56,582 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 14:24:56,582 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 14:24:56,582 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 14:24:56,582 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 14:24:56,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 14:24:56,583 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 14:24:56,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 14:24:56,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 14:24:56,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 14:24:56,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 14:24:56,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:24:56,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 14:24:56,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 14:24:56,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 14:24:56,585 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 14:24:56,585 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 14:24:56,585 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 14:24:56,586 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 14:24:56,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 14:24:56,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 14:24:56,587 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72455efc81eec5ddd76b20b40b527abca0a7be39904d76400cfd4c88dae80563 [2022-07-22 14:24:56,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 14:24:56,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 14:24:56,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 14:24:56,968 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 14:24:56,971 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 14:24:56,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2022-07-22 14:24:57,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e00edbc86/fb07141ca1864ae69ae6faf72a9e752f/FLAGa694db720 [2022-07-22 14:24:57,475 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 14:24:57,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2022-07-22 14:24:57,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e00edbc86/fb07141ca1864ae69ae6faf72a9e752f/FLAGa694db720 [2022-07-22 14:24:57,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e00edbc86/fb07141ca1864ae69ae6faf72a9e752f [2022-07-22 14:24:57,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 14:24:57,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 14:24:57,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 14:24:57,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 14:24:57,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 14:24:57,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:24:57" (1/1) ... [2022-07-22 14:24:57,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d067092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:57, skipping insertion in model container [2022-07-22 14:24:57,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:24:57" (1/1) ... [2022-07-22 14:24:57,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 14:24:57,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 14:24:58,082 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_1092a.c[2110,2123] [2022-07-22 14:24:58,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:24:58,121 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 14:24:58,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c[2110,2123] [2022-07-22 14:24:58,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:24:58,195 INFO L208 MainTranslator]: Completed translation [2022-07-22 14:24:58,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:58 WrapperNode [2022-07-22 14:24:58,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 14:24:58,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 14:24:58,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 14:24:58,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 14:24:58,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:58" (1/1) ... [2022-07-22 14:24:58,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:58" (1/1) ... [2022-07-22 14:24:58,249 INFO L137 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2022-07-22 14:24:58,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 14:24:58,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 14:24:58,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 14:24:58,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 14:24:58,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:58" (1/1) ... [2022-07-22 14:24:58,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:58" (1/1) ... [2022-07-22 14:24:58,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:58" (1/1) ... [2022-07-22 14:24:58,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:58" (1/1) ... [2022-07-22 14:24:58,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:58" (1/1) ... [2022-07-22 14:24:58,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:58" (1/1) ... [2022-07-22 14:24:58,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:58" (1/1) ... [2022-07-22 14:24:58,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 14:24:58,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 14:24:58,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 14:24:58,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 14:24:58,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:58" (1/1) ... [2022-07-22 14:24:58,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:24:58,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 14:24:58,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 14:24:58,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 14:24:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 14:24:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-07-22 14:24:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-07-22 14:24:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 14:24:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 14:24:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-22 14:24:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 14:24:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 14:24:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-22 14:24:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 14:24:58,466 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 14:24:58,467 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 14:24:59,682 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 14:24:59,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 14:24:59,687 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-22 14:24:59,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:24:59 BoogieIcfgContainer [2022-07-22 14:24:59,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 14:24:59,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 14:24:59,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 14:24:59,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 14:24:59,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:24:57" (1/3) ... [2022-07-22 14:24:59,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541d4dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:24:59, skipping insertion in model container [2022-07-22 14:24:59,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:24:58" (2/3) ... [2022-07-22 14:24:59,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541d4dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:24:59, skipping insertion in model container [2022-07-22 14:24:59,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:24:59" (3/3) ... [2022-07-22 14:24:59,695 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2022-07-22 14:24:59,707 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 14:24:59,707 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 14:24:59,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 14:24:59,767 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@3448b2b7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@be4c2df [2022-07-22 14:24:59,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 14:24:59,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:24:59,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-22 14:24:59,776 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:24:59,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:24:59,778 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:24:59,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:24:59,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2022-07-22 14:24:59,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:24:59,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107980210] [2022-07-22 14:24:59,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:24:59,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:24:59,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:24:59,799 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:24:59,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 14:24:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:24:59,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-22 14:24:59,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:24:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:24:59,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:24:59,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:24:59,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107980210] [2022-07-22 14:24:59,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107980210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:24:59,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:24:59,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 14:24:59,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988424362] [2022-07-22 14:24:59,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:24:59,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 14:24:59,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:24:59,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 14:24:59,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:24:59,945 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:24:59,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:24:59,965 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2022-07-22 14:24:59,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 14:24:59,970 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-22 14:24:59,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:24:59,978 INFO L225 Difference]: With dead ends: 64 [2022-07-22 14:24:59,978 INFO L226 Difference]: Without dead ends: 30 [2022-07-22 14:24:59,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:24:59,985 INFO L413 NwaCegarLoop]: 47 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, 47 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:24:59,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:25:00,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-22 14:25:00,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-07-22 14:25:00,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 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) [2022-07-22 14:25:00,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2022-07-22 14:25:00,022 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2022-07-22 14:25:00,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:25:00,023 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2022-07-22 14:25:00,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:25:00,023 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2022-07-22 14:25:00,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 14:25:00,024 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:25:00,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:25:00,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-22 14:25:00,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:25:00,245 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:25:00,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:25:00,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2022-07-22 14:25:00,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:25:00,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240323242] [2022-07-22 14:25:00,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:25:00,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:25:00,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:25:00,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:25:00,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 14:25:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:25:00,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 14:25:00,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:25:00,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:25:00,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:25:00,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:25:00,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240323242] [2022-07-22 14:25:00,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240323242] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:25:00,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:25:00,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 14:25:00,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385531912] [2022-07-22 14:25:00,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:25:00,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 14:25:00,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:25:00,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 14:25:00,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:25:00,462 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:25:01,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:25:01,214 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2022-07-22 14:25:01,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 14:25:01,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-22 14:25:01,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:25:01,218 INFO L225 Difference]: With dead ends: 37 [2022-07-22 14:25:01,218 INFO L226 Difference]: Without dead ends: 26 [2022-07-22 14:25:01,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 14:25:01,220 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-22 14:25:01,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 95 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 22 Unchecked, 0.7s Time] [2022-07-22 14:25:01,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-07-22 14:25:01,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-07-22 14:25:01,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:25:01,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2022-07-22 14:25:01,225 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 11 [2022-07-22 14:25:01,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:25:01,227 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2022-07-22 14:25:01,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:25:01,228 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2022-07-22 14:25:01,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 14:25:01,229 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:25:01,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:25:01,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 14:25:01,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:25:01,440 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:25:01,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:25:01,441 INFO L85 PathProgramCache]: Analyzing trace with hash -58164419, now seen corresponding path program 1 times [2022-07-22 14:25:01,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:25:01,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677160519] [2022-07-22 14:25:01,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:25:01,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:25:01,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:25:01,444 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:25:01,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 14:25:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:25:01,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 14:25:01,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:25:01,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:25:01,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:25:01,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:25:01,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677160519] [2022-07-22 14:25:01,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677160519] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:25:01,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:25:01,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 14:25:01,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371815572] [2022-07-22 14:25:01,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:25:01,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 14:25:01,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:25:01,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 14:25:01,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:25:01,637 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:25:01,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:25:01,851 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2022-07-22 14:25:01,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 14:25:01,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-22 14:25:01,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:25:01,853 INFO L225 Difference]: With dead ends: 33 [2022-07-22 14:25:01,853 INFO L226 Difference]: Without dead ends: 17 [2022-07-22 14:25:01,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 14:25:01,855 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 14:25:01,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 11 Unchecked, 0.2s Time] [2022-07-22 14:25:01,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-22 14:25:01,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-22 14:25:01,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:25:01,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-07-22 14:25:01,860 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2022-07-22 14:25:01,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:25:01,860 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-07-22 14:25:01,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:25:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-07-22 14:25:01,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-22 14:25:01,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:25:01,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:25:01,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-22 14:25:02,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:25:02,072 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:25:02,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:25:02,073 INFO L85 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2022-07-22 14:25:02,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:25:02,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506582094] [2022-07-22 14:25:02,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:25:02,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:25:02,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:25:02,076 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:25:02,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-22 14:25:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:25:02,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 14:25:02,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:25:02,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:25:02,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:25:02,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:25:02,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506582094] [2022-07-22 14:25:02,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506582094] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:25:02,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:25:02,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 14:25:02,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955575382] [2022-07-22 14:25:02,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:25:02,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 14:25:02,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:25:02,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 14:25:02,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 14:25:02,357 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:25:02,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:25:02,434 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-07-22 14:25:02,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 14:25:02,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-07-22 14:25:02,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:25:02,435 INFO L225 Difference]: With dead ends: 24 [2022-07-22 14:25:02,435 INFO L226 Difference]: Without dead ends: 17 [2022-07-22 14:25:02,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 14:25:02,437 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 14:25:02,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 14:25:02,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-22 14:25:02,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-22 14:25:02,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:25:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-07-22 14:25:02,440 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 14 [2022-07-22 14:25:02,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:25:02,440 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-07-22 14:25:02,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:25:02,440 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-07-22 14:25:02,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-22 14:25:02,440 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:25:02,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:25:02,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-22 14:25:02,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:25:02,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:25:02,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:25:02,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1568599403, now seen corresponding path program 1 times [2022-07-22 14:25:02,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:25:02,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200306303] [2022-07-22 14:25:02,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:25:02,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:25:02,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:25:02,647 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:25:02,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-22 14:25:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:25:02,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-22 14:25:02,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:25:02,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:25:02,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:25:02,878 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:25:02,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200306303] [2022-07-22 14:25:02,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200306303] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:25:02,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:25:02,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 14:25:02,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594031897] [2022-07-22 14:25:02,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:25:02,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 14:25:02,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:25:02,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 14:25:02,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 14:25:02,880 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:25:03,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:25:03,086 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-07-22 14:25:03,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 14:25:03,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-22 14:25:03,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:25:03,087 INFO L225 Difference]: With dead ends: 22 [2022-07-22 14:25:03,087 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 14:25:03,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-07-22 14:25:03,088 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 20 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 14:25:03,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 15 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 14:25:03,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 14:25:03,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 14:25:03,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:25:03,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 14:25:03,089 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2022-07-22 14:25:03,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:25:03,090 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 14:25:03,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:25:03,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 14:25:03,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 14:25:03,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 14:25:03,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-22 14:25:03,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:25:03,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 14:25:03,360 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 61) no Hoare annotation was computed. [2022-07-22 14:25:03,360 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2022-07-22 14:25:03,360 INFO L902 garLoopResultBuilder]: At program point L102(lines 85 103) the Hoare annotation is: true [2022-07-22 14:25:03,360 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 14:25:03,360 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 14:25:03,360 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 75) no Hoare annotation was computed. [2022-07-22 14:25:03,361 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2022-07-22 14:25:03,361 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 74) no Hoare annotation was computed. [2022-07-22 14:25:03,361 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2022-07-22 14:25:03,361 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 51) no Hoare annotation was computed. [2022-07-22 14:25:03,361 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2022-07-22 14:25:03,361 INFO L899 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2022-07-22 14:25:03,361 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2022-07-22 14:25:03,361 INFO L899 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2022-07-22 14:25:03,361 INFO L899 garLoopResultBuilder]: For program point L97(lines 97 100) no Hoare annotation was computed. [2022-07-22 14:25:03,362 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 71) no Hoare annotation was computed. [2022-07-22 14:25:03,362 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 75) no Hoare annotation was computed. [2022-07-22 14:25:03,362 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-07-22 14:25:03,362 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 52) no Hoare annotation was computed. [2022-07-22 14:25:03,362 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 14:25:03,362 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2022-07-22 14:25:03,362 INFO L899 garLoopResultBuilder]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2022-07-22 14:25:03,362 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 29) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= |ULTIMATE.start_ceil_double_~x#1| .cse0) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) (= .cse0 |ULTIMATE.start_main_~x~0#1|) (= currentRoundingMode roundNearestTiesToEven))) [2022-07-22 14:25:03,363 INFO L899 garLoopResultBuilder]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2022-07-22 14:25:03,363 INFO L895 garLoopResultBuilder]: At program point L82(lines 21 83) the Hoare annotation is: (let ((.cse0 (let ((.cse1 (concat (_ bv2147483648 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (and (= .cse0 |ULTIMATE.start_ceil_double_~x#1|) (= |ULTIMATE.start_ceil_double_~i1~0#1| (_ bv0 32)) (= .cse0 |ULTIMATE.start_ceil_double_#res#1|) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) (= (fp.neg (_ +zero 11 53)) |ULTIMATE.start_main_~x~0#1|) (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start_ceil_double_~i0~0#1| (_ bv2147483648 32)))) [2022-07-22 14:25:03,363 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 41) no Hoare annotation was computed. [2022-07-22 14:25:03,363 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 14:25:03,363 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 40) no Hoare annotation was computed. [2022-07-22 14:25:03,363 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 81) no Hoare annotation was computed. [2022-07-22 14:25:03,363 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2022-07-22 14:25:03,363 INFO L899 garLoopResultBuilder]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2022-07-22 14:25:03,363 INFO L899 garLoopResultBuilder]: For program point L68(lines 68 69) no Hoare annotation was computed. [2022-07-22 14:25:03,364 INFO L899 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2022-07-22 14:25:03,366 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-22 14:25:03,368 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 14:25:03,375 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:25:03,378 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:25:03,379 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:25:03,380 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:25:03,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:25:03 BoogieIcfgContainer [2022-07-22 14:25:03,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 14:25:03,381 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 14:25:03,381 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 14:25:03,382 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 14:25:03,382 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:24:59" (3/4) ... [2022-07-22 14:25:03,384 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 14:25:03,392 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-07-22 14:25:03,392 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-07-22 14:25:03,392 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 14:25:03,393 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 14:25:03,411 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~fp~LONGDOUBLE((2147483648bv32 ++ 0bv32)[63:63], (2147483648bv32 ++ 0bv32)[62:52], (2147483648bv32 ++ 0bv32)[51:0]) == x && i1 == 0bv32) && ~fp~LONGDOUBLE((2147483648bv32 ++ 0bv32)[63:63], (2147483648bv32 ++ 0bv32)[62:52], (2147483648bv32 ++ 0bv32)[51:0]) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_ceil) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && i0 == 2147483648bv32 [2022-07-22 14:25:03,420 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 14:25:03,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 14:25:03,421 INFO L158 Benchmark]: Toolchain (without parser) took 5541.82ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 46.9MB in the beginning and 42.5MB in the end (delta: 4.4MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2022-07-22 14:25:03,421 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 67.1MB. Free memory was 47.4MB in the beginning and 47.4MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:25:03,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.63ms. Allocated memory is still 67.1MB. Free memory was 46.7MB in the beginning and 48.6MB in the end (delta: -1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 14:25:03,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.90ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 46.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:25:03,422 INFO L158 Benchmark]: Boogie Preprocessor took 59.40ms. Allocated memory is still 67.1MB. Free memory was 46.7MB in the beginning and 45.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:25:03,422 INFO L158 Benchmark]: RCFGBuilder took 1378.30ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 32.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 14:25:03,422 INFO L158 Benchmark]: TraceAbstraction took 3690.66ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 32.3MB in the beginning and 45.5MB in the end (delta: -13.3MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-07-22 14:25:03,423 INFO L158 Benchmark]: Witness Printer took 39.07ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 42.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:25:03,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 67.1MB. Free memory was 47.4MB in the beginning and 47.4MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.63ms. Allocated memory is still 67.1MB. Free memory was 46.7MB in the beginning and 48.6MB in the end (delta: -1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.90ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 46.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.40ms. Allocated memory is still 67.1MB. Free memory was 46.7MB in the beginning and 45.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1378.30ms. Allocated memory is still 67.1MB. Free memory was 45.2MB in the beginning and 32.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3690.66ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 32.3MB in the beginning and 45.5MB in the end (delta: -13.3MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Witness Printer took 39.07ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 42.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 98]: 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, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 226 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 33 IncrementalHoareTripleChecker+Unchecked, 110 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 116 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 22, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 67 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 56 ConstructedInterpolants, 7 QuantifiedInterpolants, 372 SizeOfPredicates, 24 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 24]: Loop Invariant [2022-07-22 14:25:03,434 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:25:03,435 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_ceil) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant [2022-07-22 14:25:03,435 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-22 14:25:03,435 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((~fp~LONGDOUBLE((2147483648bv32 ++ 0bv32)[63:63], (2147483648bv32 ++ 0bv32)[62:52], (2147483648bv32 ++ 0bv32)[51:0]) == x && i1 == 0bv32) && ~fp~LONGDOUBLE((2147483648bv32 ++ 0bv32)[63:63], (2147483648bv32 ++ 0bv32)[62:52], (2147483648bv32 ++ 0bv32)[51:0]) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_ceil) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && i0 == 2147483648bv32 RESULT: Ultimate proved your program to be correct! [2022-07-22 14:25:03,478 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