./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1010.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1010.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 b589368e94c5bf428f982c3f177e2b11fa3048a410e00e940a504ad7d373847b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:45:31,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:45:31,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:45:31,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:45:31,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:45:31,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:45:31,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:45:31,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:45:31,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:45:31,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:45:31,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:45:31,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:45:31,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:45:31,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:45:31,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:45:31,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:45:31,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:45:31,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:45:31,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:45:31,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:45:31,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:45:31,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:45:31,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:45:31,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:45:31,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:45:31,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:45:31,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:45:31,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:45:31,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:45:31,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:45:31,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:45:31,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:45:31,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:45:31,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:45:31,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:45:31,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:45:31,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:45:31,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:45:31,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:45:31,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:45:31,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:45:31,433 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:45:31,463 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:45:31,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:45:31,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:45:31,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:45:31,465 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:45:31,466 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:45:31,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:45:31,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:45:31,466 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:45:31,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:45:31,468 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:45:31,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:45:31,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:45:31,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:45:31,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:45:31,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:45:31,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:45:31,469 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:45:31,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:45:31,469 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:45:31,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:45:31,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:45:31,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:45:31,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:45:31,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:45:31,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:45:31,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:45:31,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:45:31,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:45:31,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:45:31,471 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:45:31,472 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:45:31,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:45:31,472 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b589368e94c5bf428f982c3f177e2b11fa3048a410e00e940a504ad7d373847b [2022-02-20 16:45:31,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:45:31,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:45:31,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:45:31,756 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:45:31,757 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:45:31,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2022-02-20 16:45:31,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a80c8422f/20c5bcb6134f46549535d917c1f008e9/FLAG8fc8ae868 [2022-02-20 16:45:32,250 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:45:32,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2022-02-20 16:45:32,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a80c8422f/20c5bcb6134f46549535d917c1f008e9/FLAG8fc8ae868 [2022-02-20 16:45:32,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a80c8422f/20c5bcb6134f46549535d917c1f008e9 [2022-02-20 16:45:32,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:45:32,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:45:32,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:45:32,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:45:32,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:45:32,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:45:32" (1/1) ... [2022-02-20 16:45:32,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72bfec5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:32, skipping insertion in model container [2022-02-20 16:45:32,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:45:32" (1/1) ... [2022-02-20 16:45:32,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:45:32,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:45:32,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1010.c[999,1012] [2022-02-20 16:45:32,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:45:32,922 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:45:32,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1010.c[999,1012] [2022-02-20 16:45:32,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:45:32,958 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:45:32,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:32 WrapperNode [2022-02-20 16:45:32,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:45:32,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:45:32,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:45:32,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:45:32,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:32" (1/1) ... [2022-02-20 16:45:32,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:32" (1/1) ... [2022-02-20 16:45:32,999 INFO L137 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2022-02-20 16:45:32,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:45:33,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:45:33,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:45:33,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:45:33,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:32" (1/1) ... [2022-02-20 16:45:33,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:32" (1/1) ... [2022-02-20 16:45:33,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:32" (1/1) ... [2022-02-20 16:45:33,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:32" (1/1) ... [2022-02-20 16:45:33,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:32" (1/1) ... [2022-02-20 16:45:33,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:32" (1/1) ... [2022-02-20 16:45:33,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:32" (1/1) ... [2022-02-20 16:45:33,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:45:33,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:45:33,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:45:33,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:45:33,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:32" (1/1) ... [2022-02-20 16:45:33,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:45:33,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:45:33,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:45:33,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:45:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:45:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:45:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:45:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-20 16:45:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 16:45:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-20 16:45:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:45:33,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:45:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 16:45:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:45:33,207 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:45:33,208 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:45:33,404 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:45:33,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:45:33,409 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-20 16:45:33,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:33 BoogieIcfgContainer [2022-02-20 16:45:33,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:45:33,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:45:33,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:45:33,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:45:33,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:45:32" (1/3) ... [2022-02-20 16:45:33,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e5d7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:33, skipping insertion in model container [2022-02-20 16:45:33,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:32" (2/3) ... [2022-02-20 16:45:33,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e5d7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:33, skipping insertion in model container [2022-02-20 16:45:33,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:33" (3/3) ... [2022-02-20 16:45:33,422 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2022-02-20 16:45:33,428 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:45:33,429 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:45:33,476 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:45:33,486 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:45:33,486 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:45:33,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 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) [2022-02-20 16:45:33,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 16:45:33,505 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:45:33,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:45:33,507 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:45:33,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:45:33,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times [2022-02-20 16:45:33,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:45:33,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135884451] [2022-02-20 16:45:33,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:45:33,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:45:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:33,644 INFO L290 TraceCheckUtils]: 0: Hoare triple {18#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); {18#true} is VALID [2022-02-20 16:45:33,645 INFO L290 TraceCheckUtils]: 1: Hoare triple {18#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_#t~ret7#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0);assume { :begin_inline_fabs_float } true;fabs_float_#in~x#1 := main_~x~0#1;havoc fabs_float_#res#1;havoc fabs_float_#t~mem4#1, fabs_float_~#gf_u~0#1.base, fabs_float_~#gf_u~0#1.offset, fabs_float_#t~mem5#1, fabs_float_~#sf_u~0#1.base, fabs_float_~#sf_u~0#1.offset, fabs_float_~x#1, fabs_float_~ix~0#1;fabs_float_~x#1 := fabs_float_#in~x#1;havoc fabs_float_~ix~0#1; {18#true} is VALID [2022-02-20 16:45:33,649 INFO L290 TraceCheckUtils]: 2: Hoare triple {18#true} assume !true; {19#false} is VALID [2022-02-20 16:45:33,649 INFO L290 TraceCheckUtils]: 3: Hoare triple {19#false} assume !true; {19#false} is VALID [2022-02-20 16:45:33,650 INFO L290 TraceCheckUtils]: 4: Hoare triple {19#false} fabs_float_#res#1 := fabs_float_~x#1; {19#false} is VALID [2022-02-20 16:45:33,650 INFO L290 TraceCheckUtils]: 5: Hoare triple {19#false} main_#t~ret6#1 := fabs_float_#res#1;assume { :end_inline_fabs_float } true;main_~res~0#1 := main_#t~ret6#1;havoc main_#t~ret6#1;assume { :begin_inline_isnan_float } true;isnan_float_#in~x#1 := main_~res~0#1;havoc isnan_float_#res#1;havoc isnan_float_~x#1;isnan_float_~x#1 := isnan_float_#in~x#1;isnan_float_#res#1 := (if ~someBinaryFLOATComparisonOperation(isnan_float_~x#1, isnan_float_~x#1) then 1 else 0); {19#false} is VALID [2022-02-20 16:45:33,650 INFO L290 TraceCheckUtils]: 6: Hoare triple {19#false} main_#t~ret7#1 := isnan_float_#res#1;assume { :end_inline_isnan_float } true;assume -2147483648 <= main_#t~ret7#1 && main_#t~ret7#1 <= 2147483647; {19#false} is VALID [2022-02-20 16:45:33,651 INFO L290 TraceCheckUtils]: 7: Hoare triple {19#false} assume 0 == main_#t~ret7#1;havoc main_#t~ret7#1; {19#false} is VALID [2022-02-20 16:45:33,651 INFO L290 TraceCheckUtils]: 8: Hoare triple {19#false} assume !false; {19#false} is VALID [2022-02-20 16:45:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:45:33,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:45:33,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135884451] [2022-02-20 16:45:33,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135884451] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:45:33,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:45:33,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:45:33,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247658814] [2022-02-20 16:45:33,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:45:33,671 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 16:45:33,672 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:45:33,674 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:33,692 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:33,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:45:33,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:45:33,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:45:33,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:33,713 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:33,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:33,756 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2022-02-20 16:45:33,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:45:33,757 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 16:45:33,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:45:33,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:33,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 36 transitions. [2022-02-20 16:45:33,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:33,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 36 transitions. [2022-02-20 16:45:33,771 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 36 transitions. [2022-02-20 16:45:33,826 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:33,833 INFO L225 Difference]: With dead ends: 28 [2022-02-20 16:45:33,834 INFO L226 Difference]: Without dead ends: 12 [2022-02-20 16:45:33,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:33,842 INFO L933 BasicCegarLoop]: 14 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, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:45:33,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:45:33,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-02-20 16:45:33,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-02-20 16:45:33,868 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:45:33,869 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states. Second operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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) [2022-02-20 16:45:33,869 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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) [2022-02-20 16:45:33,870 INFO L87 Difference]: Start difference. First operand 12 states. Second operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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) [2022-02-20 16:45:33,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:33,875 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2022-02-20 16:45:33,876 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-02-20 16:45:33,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:33,877 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:33,877 INFO L74 IsIncluded]: Start isIncluded. First operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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) Second operand 12 states. [2022-02-20 16:45:33,878 INFO L87 Difference]: Start difference. First operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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) Second operand 12 states. [2022-02-20 16:45:33,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:33,885 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2022-02-20 16:45:33,885 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-02-20 16:45:33,886 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:33,886 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:33,887 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:45:33,887 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:45:33,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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) [2022-02-20 16:45:33,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2022-02-20 16:45:33,890 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2022-02-20 16:45:33,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:45:33,891 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2022-02-20 16:45:33,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:33,892 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-02-20 16:45:33,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-20 16:45:33,893 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:45:33,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:45:33,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:45:33,895 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:45:33,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:45:33,898 INFO L85 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times [2022-02-20 16:45:33,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:45:33,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602697994] [2022-02-20 16:45:33,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:45:33,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:45:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:45:33,992 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:45:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:45:34,045 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:45:34,048 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:45:34,050 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:45:34,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 16:45:34,056 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 16:45:34,059 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:45:34,087 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:45:34,087 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:45:34,087 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2022-02-20 16:45:34,087 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2022-02-20 16:45:34,087 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2022-02-20 16:45:34,088 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2022-02-20 16:45:34,088 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2022-02-20 16:45:34,088 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2022-02-20 16:45:34,088 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-02-20 16:45:34,088 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-02-20 16:45:34,088 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2022-02-20 16:45:34,089 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-02-20 16:45:34,089 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2022-02-20 16:45:34,089 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2022-02-20 16:45:34,089 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2022-02-20 16:45:34,089 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2022-02-20 16:45:34,089 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2022-02-20 16:45:34,089 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2022-02-20 16:45:34,090 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:45:34,090 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:45:34,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:45:34 BoogieIcfgContainer [2022-02-20 16:45:34,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:45:34,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:45:34,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:45:34,092 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:45:34,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:33" (3/4) ... [2022-02-20 16:45:34,095 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:45:34,095 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:45:34,097 INFO L158 Benchmark]: Toolchain (without parser) took 1438.81ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 54.8MB in the beginning and 67.8MB in the end (delta: -13.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-02-20 16:45:34,098 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory was 57.6MB in the beginning and 57.6MB in the end (delta: 26.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:45:34,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.35ms. Allocated memory is still 88.1MB. Free memory was 54.7MB in the beginning and 64.5MB in the end (delta: -9.9MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-02-20 16:45:34,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.22ms. Allocated memory is still 88.1MB. Free memory was 64.5MB in the beginning and 62.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:45:34,103 INFO L158 Benchmark]: Boogie Preprocessor took 43.93ms. Allocated memory is still 88.1MB. Free memory was 62.8MB in the beginning and 61.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:45:34,104 INFO L158 Benchmark]: RCFGBuilder took 365.51ms. Allocated memory is still 88.1MB. Free memory was 61.4MB in the beginning and 50.6MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-20 16:45:34,104 INFO L158 Benchmark]: TraceAbstraction took 678.92ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 50.0MB in the beginning and 67.8MB in the end (delta: -17.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-20 16:45:34,104 INFO L158 Benchmark]: Witness Printer took 3.73ms. Allocated memory is still 109.1MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:45:34,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory was 57.6MB in the beginning and 57.6MB in the end (delta: 26.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.35ms. Allocated memory is still 88.1MB. Free memory was 54.7MB in the beginning and 64.5MB in the end (delta: -9.9MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.22ms. Allocated memory is still 88.1MB. Free memory was 64.5MB in the beginning and 62.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.93ms. Allocated memory is still 88.1MB. Free memory was 62.8MB in the beginning and 61.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 365.51ms. Allocated memory is still 88.1MB. Free memory was 61.4MB in the beginning and 50.6MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 678.92ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 50.0MB in the beginning and 67.8MB in the end (delta: -17.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 3.73ms. Allocated memory is still 109.1MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 42]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseAnd at line 25. Possible FailurePath: [L37] float x = 0.0f / 0.0f; [L38] CALL, EXPR fabs_float(x) [L17] __uint32_t ix; VAL [\old(x)=51, x=51] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (ix) = gf_u.word [L24] ieee_float_shape_type sf_u; [L25] sf_u.word = (ix & 0x7fffffff) [L26] EXPR sf_u.value [L26] (x) = sf_u.value [L28] return x; VAL [\old(x)=51, \result=49, ix=50, x=49] [L38] RET, EXPR fabs_float(x) [L38] float res = fabs_float(x); [L41] CALL, EXPR isnan_float(res) [L14] return x != x; VAL [\old(x)=49, \result=0, x=49] [L41] RET, EXPR isnan_float(res) [L41] COND TRUE !isnan_float(res) [L42] reach_error() VAL [res=49, x=51] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 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, 14 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=15occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-20 16:45:34,158 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 -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1010.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 b589368e94c5bf428f982c3f177e2b11fa3048a410e00e940a504ad7d373847b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:45:36,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:45:36,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:45:36,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:45:36,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:45:36,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:45:36,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:45:36,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:45:36,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:45:36,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:45:36,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:45:36,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:45:36,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:45:36,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:45:36,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:45:36,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:45:36,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:45:36,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:45:36,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:45:36,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:45:36,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:45:36,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:45:36,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:45:36,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:45:36,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:45:36,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:45:36,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:45:36,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:45:36,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:45:36,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:45:36,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:45:36,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:45:36,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:45:36,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:45:36,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:45:36,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:45:36,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:45:36,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:45:36,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:45:36,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:45:36,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:45:36,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:45:36,281 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:45:36,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:45:36,283 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:45:36,283 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:45:36,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:45:36,284 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:45:36,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:45:36,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:45:36,285 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:45:36,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:45:36,286 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:45:36,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:45:36,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:45:36,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:45:36,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:45:36,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:45:36,288 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:45:36,288 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:45:36,288 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:45:36,288 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:45:36,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:45:36,288 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:45:36,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:45:36,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:45:36,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:45:36,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:45:36,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:45:36,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:45:36,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:45:36,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:45:36,290 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:45:36,290 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:45:36,291 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:45:36,291 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:45:36,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:45:36,291 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:45:36,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b589368e94c5bf428f982c3f177e2b11fa3048a410e00e940a504ad7d373847b [2022-02-20 16:45:36,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:45:36,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:45:36,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:45:36,605 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:45:36,607 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:45:36,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2022-02-20 16:45:36,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee895154e/53fa54e34a2d4d4897fdafa213c9b21c/FLAG37af69ad8 [2022-02-20 16:45:37,089 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:45:37,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2022-02-20 16:45:37,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee895154e/53fa54e34a2d4d4897fdafa213c9b21c/FLAG37af69ad8 [2022-02-20 16:45:37,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee895154e/53fa54e34a2d4d4897fdafa213c9b21c [2022-02-20 16:45:37,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:45:37,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:45:37,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:45:37,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:45:37,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:45:37,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:45:37" (1/1) ... [2022-02-20 16:45:37,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48366a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:37, skipping insertion in model container [2022-02-20 16:45:37,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:45:37" (1/1) ... [2022-02-20 16:45:37,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:45:37,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:45:37,684 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1010.c[999,1012] [2022-02-20 16:45:37,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:45:37,698 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:45:37,750 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1010.c[999,1012] [2022-02-20 16:45:37,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:45:37,775 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:45:37,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:37 WrapperNode [2022-02-20 16:45:37,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:45:37,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:45:37,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:45:37,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:45:37,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:37" (1/1) ... [2022-02-20 16:45:37,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:37" (1/1) ... [2022-02-20 16:45:37,814 INFO L137 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2022-02-20 16:45:37,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:45:37,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:45:37,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:45:37,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:45:37,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:37" (1/1) ... [2022-02-20 16:45:37,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:37" (1/1) ... [2022-02-20 16:45:37,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:37" (1/1) ... [2022-02-20 16:45:37,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:37" (1/1) ... [2022-02-20 16:45:37,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:37" (1/1) ... [2022-02-20 16:45:37,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:37" (1/1) ... [2022-02-20 16:45:37,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:37" (1/1) ... [2022-02-20 16:45:37,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:45:37,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:45:37,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:45:37,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:45:37,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:37" (1/1) ... [2022-02-20 16:45:37,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:45:37,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:45:37,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:45:37,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:45:37,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:45:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:45:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:45:37,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-02-20 16:45:37,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-02-20 16:45:37,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:45:37,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:45:37,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-02-20 16:45:37,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-02-20 16:45:37,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:45:38,032 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:45:38,034 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:45:38,223 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:45:38,229 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:45:38,229 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-20 16:45:38,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:38 BoogieIcfgContainer [2022-02-20 16:45:38,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:45:38,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:45:38,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:45:38,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:45:38,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:45:37" (1/3) ... [2022-02-20 16:45:38,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba9730b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:38, skipping insertion in model container [2022-02-20 16:45:38,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:45:37" (2/3) ... [2022-02-20 16:45:38,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba9730b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:45:38, skipping insertion in model container [2022-02-20 16:45:38,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:38" (3/3) ... [2022-02-20 16:45:38,268 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2022-02-20 16:45:38,285 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:45:38,286 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:45:38,343 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:45:38,361 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:45:38,362 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:45:38,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 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) [2022-02-20 16:45:38,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 16:45:38,384 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:45:38,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:45:38,386 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:45:38,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:45:38,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times [2022-02-20 16:45:38,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:45:38,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850417405] [2022-02-20 16:45:38,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:45:38,405 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:45:38,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:45:38,408 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 16:45:38,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:45:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:38,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 16:45:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:38,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:45:38,583 INFO L290 TraceCheckUtils]: 0: Hoare triple {18#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(20bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {18#true} is VALID [2022-02-20 16:45:38,584 INFO L290 TraceCheckUtils]: 1: Hoare triple {18#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_#t~ret7#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~FLOAT(), ~Pluszero~FLOAT());assume { :begin_inline_fabs_float } true;fabs_float_#in~x#1 := main_~x~0#1;havoc fabs_float_#res#1;havoc fabs_float_#t~mem4#1, fabs_float_~#gf_u~0#1.base, fabs_float_~#gf_u~0#1.offset, fabs_float_#t~mem5#1, fabs_float_~#sf_u~0#1.base, fabs_float_~#sf_u~0#1.offset, fabs_float_~x#1, fabs_float_~ix~0#1;fabs_float_~x#1 := fabs_float_#in~x#1;havoc fabs_float_~ix~0#1; {18#true} is VALID [2022-02-20 16:45:38,585 INFO L290 TraceCheckUtils]: 2: Hoare triple {18#true} assume !true; {19#false} is VALID [2022-02-20 16:45:38,586 INFO L290 TraceCheckUtils]: 3: Hoare triple {19#false} assume !true; {19#false} is VALID [2022-02-20 16:45:38,586 INFO L290 TraceCheckUtils]: 4: Hoare triple {19#false} fabs_float_#res#1 := fabs_float_~x#1; {19#false} is VALID [2022-02-20 16:45:38,586 INFO L290 TraceCheckUtils]: 5: Hoare triple {19#false} main_#t~ret6#1 := fabs_float_#res#1;assume { :end_inline_fabs_float } true;main_~res~0#1 := main_#t~ret6#1;havoc main_#t~ret6#1;assume { :begin_inline_isnan_float } true;isnan_float_#in~x#1 := main_~res~0#1;havoc isnan_float_#res#1;havoc isnan_float_~x#1;isnan_float_~x#1 := isnan_float_#in~x#1;isnan_float_#res#1 := (if !~fp.eq~FLOAT(isnan_float_~x#1, isnan_float_~x#1) then 1bv32 else 0bv32); {19#false} is VALID [2022-02-20 16:45:38,587 INFO L290 TraceCheckUtils]: 6: Hoare triple {19#false} main_#t~ret7#1 := isnan_float_#res#1;assume { :end_inline_isnan_float } true; {19#false} is VALID [2022-02-20 16:45:38,588 INFO L290 TraceCheckUtils]: 7: Hoare triple {19#false} assume 0bv32 == main_#t~ret7#1;havoc main_#t~ret7#1; {19#false} is VALID [2022-02-20 16:45:38,588 INFO L290 TraceCheckUtils]: 8: Hoare triple {19#false} assume !false; {19#false} is VALID [2022-02-20 16:45:38,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:45:38,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:45:38,590 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:45:38,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850417405] [2022-02-20 16:45:38,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850417405] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:45:38,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:45:38,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:45:38,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270543002] [2022-02-20 16:45:38,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:45:38,600 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 16:45:38,603 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:45:38,606 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:38,629 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:38,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:45:38,631 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:45:38,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:45:38,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:38,655 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:38,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:38,698 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2022-02-20 16:45:38,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:45:38,699 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 16:45:38,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:45:38,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:38,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 36 transitions. [2022-02-20 16:45:38,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:38,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 36 transitions. [2022-02-20 16:45:38,712 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 36 transitions. [2022-02-20 16:45:38,758 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:38,767 INFO L225 Difference]: With dead ends: 28 [2022-02-20 16:45:38,768 INFO L226 Difference]: Without dead ends: 12 [2022-02-20 16:45:38,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:45:38,774 INFO L933 BasicCegarLoop]: 14 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, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:45:38,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:45:38,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-02-20 16:45:38,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-02-20 16:45:38,803 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:45:38,804 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states. Second operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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) [2022-02-20 16:45:38,804 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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) [2022-02-20 16:45:38,804 INFO L87 Difference]: Start difference. First operand 12 states. Second operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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) [2022-02-20 16:45:38,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:38,814 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2022-02-20 16:45:38,814 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-02-20 16:45:38,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:38,815 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:38,816 INFO L74 IsIncluded]: Start isIncluded. First operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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) Second operand 12 states. [2022-02-20 16:45:38,816 INFO L87 Difference]: Start difference. First operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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) Second operand 12 states. [2022-02-20 16:45:38,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:38,823 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2022-02-20 16:45:38,823 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-02-20 16:45:38,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:38,824 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:38,824 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:45:38,824 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:45:38,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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) [2022-02-20 16:45:38,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2022-02-20 16:45:38,830 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2022-02-20 16:45:38,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:45:38,830 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2022-02-20 16:45:38,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:45:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-02-20 16:45:38,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-02-20 16:45:38,832 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:45:38,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:45:38,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 16:45:39,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:45:39,044 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:45:39,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:45:39,045 INFO L85 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times [2022-02-20 16:45:39,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:45:39,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526900352] [2022-02-20 16:45:39,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:45:39,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:45:39,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:45:39,051 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) [2022-02-20 16:45:39,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-02-20 16:45:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:39,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-20 16:45:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:45:39,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:45:39,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-20 16:45:39,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2022-02-20 16:45:39,512 INFO L290 TraceCheckUtils]: 0: Hoare triple {121#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(20bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {121#true} is VALID [2022-02-20 16:45:39,514 INFO L290 TraceCheckUtils]: 1: Hoare triple {121#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_#t~ret7#1, main_~x~0#1, main_~res~0#1;main_~x~0#1 := ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~FLOAT(), ~Pluszero~FLOAT());assume { :begin_inline_fabs_float } true;fabs_float_#in~x#1 := main_~x~0#1;havoc fabs_float_#res#1;havoc fabs_float_#t~mem4#1, fabs_float_~#gf_u~0#1.base, fabs_float_~#gf_u~0#1.offset, fabs_float_#t~mem5#1, fabs_float_~#sf_u~0#1.base, fabs_float_~#sf_u~0#1.offset, fabs_float_~x#1, fabs_float_~ix~0#1;fabs_float_~x#1 := fabs_float_#in~x#1;havoc fabs_float_~ix~0#1; {129#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fabs_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:45:39,522 INFO L290 TraceCheckUtils]: 2: Hoare triple {129#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fabs_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} call fabs_float_~#gf_u~0#1.base, fabs_float_~#gf_u~0#1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(fabs_float_~x#1, fabs_float_~#gf_u~0#1.base, fabs_float_~#gf_u~0#1.offset, 4bv32);call fabs_float_#t~mem4#1 := read~intINTTYPE4(fabs_float_~#gf_u~0#1.base, fabs_float_~#gf_u~0#1.offset, 4bv32);fabs_float_~ix~0#1 := fabs_float_#t~mem4#1;havoc fabs_float_#t~mem4#1;call ULTIMATE.dealloc(fabs_float_~#gf_u~0#1.base, fabs_float_~#gf_u~0#1.offset);havoc fabs_float_~#gf_u~0#1.base, fabs_float_~#gf_u~0#1.offset; {133#(exists ((|v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 31 31) (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32))) ((_ extract 30 23) (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32))) ((_ extract 22 0) (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32)))) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32)) |ULTIMATE.start_fabs_float_~ix~0#1|)))} is VALID [2022-02-20 16:45:39,523 INFO L290 TraceCheckUtils]: 3: Hoare triple {133#(exists ((|v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 31 31) (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32))) ((_ extract 30 23) (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32))) ((_ extract 22 0) (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32)))) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32)) |ULTIMATE.start_fabs_float_~ix~0#1|)))} goto; {133#(exists ((|v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 31 31) (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32))) ((_ extract 30 23) (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32))) ((_ extract 22 0) (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32)))) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32)) |ULTIMATE.start_fabs_float_~ix~0#1|)))} is VALID [2022-02-20 16:45:39,527 INFO L290 TraceCheckUtils]: 4: Hoare triple {133#(exists ((|v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 31 31) (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32))) ((_ extract 30 23) (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32))) ((_ extract 22 0) (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32)))) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_6|) (_ bv0 32)) |ULTIMATE.start_fabs_float_~ix~0#1|)))} call fabs_float_~#sf_u~0#1.base, fabs_float_~#sf_u~0#1.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(~bvand32(2147483647bv32, fabs_float_~ix~0#1), fabs_float_~#sf_u~0#1.base, fabs_float_~#sf_u~0#1.offset, 4bv32);call fabs_float_#t~mem5#1 := read~intFLOATTYPE4(fabs_float_~#sf_u~0#1.base, fabs_float_~#sf_u~0#1.offset, 4bv32);fabs_float_~x#1 := fabs_float_#t~mem5#1;havoc fabs_float_#t~mem5#1;call ULTIMATE.dealloc(fabs_float_~#sf_u~0#1.base, fabs_float_~#sf_u~0#1.offset);havoc fabs_float_~#sf_u~0#1.base, fabs_float_~#sf_u~0#1.offset; {129#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fabs_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:45:39,528 INFO L290 TraceCheckUtils]: 5: Hoare triple {129#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fabs_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} goto; {129#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fabs_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:45:39,529 INFO L290 TraceCheckUtils]: 6: Hoare triple {129#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fabs_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} fabs_float_#res#1 := fabs_float_~x#1; {146#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fabs_float_#res#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:45:39,531 INFO L290 TraceCheckUtils]: 7: Hoare triple {146#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fabs_float_#res#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} main_#t~ret6#1 := fabs_float_#res#1;assume { :end_inline_fabs_float } true;main_~res~0#1 := main_#t~ret6#1;havoc main_#t~ret6#1;assume { :begin_inline_isnan_float } true;isnan_float_#in~x#1 := main_~res~0#1;havoc isnan_float_#res#1;havoc isnan_float_~x#1;isnan_float_~x#1 := isnan_float_#in~x#1;isnan_float_#res#1 := (if !~fp.eq~FLOAT(isnan_float_~x#1, isnan_float_~x#1) then 1bv32 else 0bv32); {150#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)} is VALID [2022-02-20 16:45:39,532 INFO L290 TraceCheckUtils]: 8: Hoare triple {150#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)} main_#t~ret7#1 := isnan_float_#res#1;assume { :end_inline_isnan_float } true; {154#(= (_ bv1 32) |ULTIMATE.start_main_#t~ret7#1|)} is VALID [2022-02-20 16:45:39,532 INFO L290 TraceCheckUtils]: 9: Hoare triple {154#(= (_ bv1 32) |ULTIMATE.start_main_#t~ret7#1|)} assume 0bv32 == main_#t~ret7#1;havoc main_#t~ret7#1; {122#false} is VALID [2022-02-20 16:45:39,533 INFO L290 TraceCheckUtils]: 10: Hoare triple {122#false} assume !false; {122#false} is VALID [2022-02-20 16:45:39,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:45:39,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:45:39,533 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:45:39,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526900352] [2022-02-20 16:45:39,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526900352] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:45:39,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:45:39,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-20 16:45:39,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956474008] [2022-02-20 16:45:39,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:45:39,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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 [2022-02-20 16:45:39,536 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:45:39,536 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2022-02-20 16:45:39,559 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:39,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-20 16:45:39,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:45:39,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-20 16:45:39,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-20 16:45:39,561 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2022-02-20 16:45:39,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:39,620 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2022-02-20 16:45:39,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-20 16:45:39,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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 [2022-02-20 16:45:39,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:45:39,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2022-02-20 16:45:39,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 11 transitions. [2022-02-20 16:45:39,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2022-02-20 16:45:39,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 11 transitions. [2022-02-20 16:45:39,622 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 11 transitions. [2022-02-20 16:45:39,647 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:45:39,647 INFO L225 Difference]: With dead ends: 12 [2022-02-20 16:45:39,647 INFO L226 Difference]: Without dead ends: 0 [2022-02-20 16:45:39,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-20 16:45:39,649 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:45:39,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 17 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 10 Unchecked, 0.0s Time] [2022-02-20 16:45:39,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-20 16:45:39,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-20 16:45:39,650 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:45:39,650 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second 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) [2022-02-20 16:45:39,650 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second 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) [2022-02-20 16:45:39,650 INFO L87 Difference]: Start difference. First operand 0 states. Second 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) [2022-02-20 16:45:39,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:39,651 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:45:39,651 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:45:39,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:39,651 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:39,651 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 0 states. [2022-02-20 16:45:39,651 INFO L87 Difference]: Start difference. First 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) Second operand 0 states. [2022-02-20 16:45:39,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:45:39,652 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:45:39,652 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:45:39,652 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:39,652 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:45:39,652 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:45:39,652 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:45:39,652 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) [2022-02-20 16:45:39,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-20 16:45:39,653 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-02-20 16:45:39,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:45:39,653 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-20 16:45:39,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2022-02-20 16:45:39,653 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:45:39,653 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:45:39,655 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:45:39,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-02-20 16:45:39,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:45:39,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-02-20 16:45:39,874 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-02-20 16:45:39,874 INFO L858 garLoopResultBuilder]: For program point L23(lines 23 27) no Hoare annotation was computed. [2022-02-20 16:45:39,874 INFO L858 garLoopResultBuilder]: For program point L23-1(lines 16 29) no Hoare annotation was computed. [2022-02-20 16:45:39,874 INFO L858 garLoopResultBuilder]: For program point L23-2(lines 23 27) no Hoare annotation was computed. [2022-02-20 16:45:39,874 INFO L861 garLoopResultBuilder]: At program point L46(lines 31 47) the Hoare annotation is: true [2022-02-20 16:45:39,875 INFO L858 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2022-02-20 16:45:39,875 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-02-20 16:45:39,875 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-02-20 16:45:39,875 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-02-20 16:45:39,875 INFO L854 garLoopResultBuilder]: At program point L28(lines 16 29) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fabs_float_#res#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) [2022-02-20 16:45:39,875 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2022-02-20 16:45:39,875 INFO L858 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2022-02-20 16:45:39,875 INFO L854 garLoopResultBuilder]: At program point L18-2(lines 18 22) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fabs_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) [2022-02-20 16:45:39,876 INFO L854 garLoopResultBuilder]: At program point L14(line 14) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|) [2022-02-20 16:45:39,876 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 44) no Hoare annotation was computed. [2022-02-20 16:45:39,881 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 16:45:39,883 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:45:39,888 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:45:39,888 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:45:39,888 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2022-02-20 16:45:39,888 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2022-02-20 16:45:39,888 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2022-02-20 16:45:39,889 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2022-02-20 16:45:39,890 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2022-02-20 16:45:39,893 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2022-02-20 16:45:39,893 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-02-20 16:45:39,893 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2022-02-20 16:45:39,893 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2022-02-20 16:45:39,896 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2022-02-20 16:45:39,896 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2022-02-20 16:45:39,896 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2022-02-20 16:45:39,896 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2022-02-20 16:45:39,896 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2022-02-20 16:45:39,896 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:45:39,896 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:45:39,897 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:45:39,900 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-02-20 16:45:39,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-02-20 16:45:39,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-02-20 16:45:39,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-02-20 16:45:39,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:45:39 BoogieIcfgContainer [2022-02-20 16:45:39,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:45:39,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:45:39,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:45:39,907 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:45:39,912 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:45:38" (3/4) ... [2022-02-20 16:45:39,914 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-02-20 16:45:39,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-02-20 16:45:39,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-02-20 16:45:39,923 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-02-20 16:45:39,924 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-02-20 16:45:39,947 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2022-02-20 16:45:39,958 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-20 16:45:39,958 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:45:39,959 INFO L158 Benchmark]: Toolchain (without parser) took 2437.84ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.3MB in the beginning and 34.0MB in the end (delta: -1.7MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-02-20 16:45:39,959 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 54.5MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:45:39,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.44ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 36.3MB in the end (delta: -4.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 16:45:39,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.81ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 34.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:45:39,960 INFO L158 Benchmark]: Boogie Preprocessor took 38.64ms. Allocated memory is still 54.5MB. Free memory was 34.6MB in the beginning and 33.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:45:39,960 INFO L158 Benchmark]: RCFGBuilder took 375.71ms. Allocated memory is still 54.5MB. Free memory was 32.9MB in the beginning and 22.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-20 16:45:39,960 INFO L158 Benchmark]: TraceAbstraction took 1674.57ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 21.9MB in the beginning and 36.1MB in the end (delta: -14.3MB). Peak memory consumption was 728.3kB. Max. memory is 16.1GB. [2022-02-20 16:45:39,961 INFO L158 Benchmark]: Witness Printer took 51.25ms. Allocated memory is still 67.1MB. Free memory was 36.1MB in the beginning and 34.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:45:39,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 54.5MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.44ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 36.3MB in the end (delta: -4.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.81ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 34.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.64ms. Allocated memory is still 54.5MB. Free memory was 34.6MB in the beginning and 33.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 375.71ms. Allocated memory is still 54.5MB. Free memory was 32.9MB in the beginning and 22.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1674.57ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 21.9MB in the beginning and 36.1MB in the end (delta: -14.3MB). Peak memory consumption was 728.3kB. Max. memory is 16.1GB. * Witness Printer took 51.25ms. Allocated memory is still 67.1MB. Free memory was 36.1MB in the beginning and 34.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 42]: 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, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 10 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 18 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 6 QuantifiedInterpolants, 110 SizeOfPredicates, 12 NumberOfNonLiveVariables, 79 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2022-02-20 16:45:39,969 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-02-20 16:45:39,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 16]: Loop Invariant [2022-02-20 16:45:39,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-02-20 16:45:39,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1bv32 == \result RESULT: Ultimate proved your program to be correct! [2022-02-20 16:45:40,000 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