./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1211b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1211b.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 46a654e5cd481c0250a48d4dd25ca48ac714310d .......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1211b.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 46a654e5cd481c0250a48d4dd25ca48ac714310d ........................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 15:11:23,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:11:23,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:11:23,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:11:23,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:11:23,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:11:23,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:11:23,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:11:23,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:11:23,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:11:23,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:11:23,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:11:23,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:11:23,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:11:23,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:11:23,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:11:23,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:11:23,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:11:23,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:11:23,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:11:23,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:11:23,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:11:23,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:11:23,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:11:23,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:11:23,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:11:23,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:11:23,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:11:23,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:11:23,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:11:23,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:11:23,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:11:23,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:11:23,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:11:23,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:11:23,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:11:23,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:11:23,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:11:23,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:11:23,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:11:23,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:11:23,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 15:11:23,518 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:11:23,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:11:23,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:11:23,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:11:23,522 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:11:23,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:11:23,523 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:11:23,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 15:11:23,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:11:23,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:11:23,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:11:23,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:11:23,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:11:23,526 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:11:23,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:11:23,526 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:11:23,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:11:23,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:11:23,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:11:23,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:11:23,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:11:23,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:11:23,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:11:23,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:11:23,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:11:23,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 15:11:23,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 15:11:23,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:11:23,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:11:23,530 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46a654e5cd481c0250a48d4dd25ca48ac714310d [2020-10-24 15:11:23,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:11:23,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:11:23,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:11:23,953 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:11:23,955 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:11:23,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1211b.c [2020-10-24 15:11:24,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/864abd4cc/adacd71b4e954b9196b9b1261237d01b/FLAG171cf13b7 [2020-10-24 15:11:24,584 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:11:24,585 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c [2020-10-24 15:11:24,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/864abd4cc/adacd71b4e954b9196b9b1261237d01b/FLAG171cf13b7 [2020-10-24 15:11:24,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/864abd4cc/adacd71b4e954b9196b9b1261237d01b [2020-10-24 15:11:24,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:11:24,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:11:24,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:11:24,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:11:24,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:11:24,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:24" (1/1) ... [2020-10-24 15:11:24,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4922ca1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:24, skipping insertion in model container [2020-10-24 15:11:24,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:24" (1/1) ... [2020-10-24 15:11:24,980 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:11:25,013 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:11:25,243 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:11:25,255 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:11:25,290 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:11:25,308 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:11:25,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25 WrapperNode [2020-10-24 15:11:25,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:11:25,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:11:25,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:11:25,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:11:25,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25" (1/1) ... [2020-10-24 15:11:25,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25" (1/1) ... [2020-10-24 15:11:25,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 15:11:25,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 15:11:25,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 15:11:25,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 15:11:25,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25" (1/1) ... [2020-10-24 15:11:25,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25" (1/1) ... [2020-10-24 15:11:25,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25" (1/1) ... [2020-10-24 15:11:25,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25" (1/1) ... [2020-10-24 15:11:25,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25" (1/1) ... [2020-10-24 15:11:25,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25" (1/1) ... [2020-10-24 15:11:25,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25" (1/1) ... [2020-10-24 15:11:25,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 15:11:25,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 15:11:25,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 15:11:25,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 15:11:25,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:11:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 15:11:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 15:11:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 15:11:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 15:11:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 15:11:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 15:11:25,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 15:11:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 15:11:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 15:11:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 15:11:26,061 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 15:11:26,061 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-24 15:11:26,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:11:26 BoogieIcfgContainer [2020-10-24 15:11:26,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 15:11:26,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 15:11:26,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 15:11:26,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 15:11:26,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:11:24" (1/3) ... [2020-10-24 15:11:26,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e32fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:11:26, skipping insertion in model container [2020-10-24 15:11:26,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:25" (2/3) ... [2020-10-24 15:11:26,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e32fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:11:26, skipping insertion in model container [2020-10-24 15:11:26,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:11:26" (3/3) ... [2020-10-24 15:11:26,081 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211b.c [2020-10-24 15:11:26,105 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 15:11:26,111 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 15:11:26,123 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 15:11:26,149 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 15:11:26,149 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 15:11:26,149 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 15:11:26,149 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 15:11:26,149 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 15:11:26,149 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 15:11:26,150 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 15:11:26,150 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 15:11:26,164 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-10-24 15:11:26,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 15:11:26,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:11:26,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:11:26,172 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:11:26,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:11:26,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1888439402, now seen corresponding path program 1 times [2020-10-24 15:11:26,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:11:26,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245253036] [2020-10-24 15:11:26,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:11:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:11:26,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:11:26,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245253036] [2020-10-24 15:11:26,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:11:26,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 15:11:26,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7960864] [2020-10-24 15:11:26,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 15:11:26,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 15:11:26,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 15:11:26,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:11:26,492 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-10-24 15:11:26,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:11:26,535 INFO L93 Difference]: Finished difference Result 83 states and 129 transitions. [2020-10-24 15:11:26,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 15:11:26,537 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-10-24 15:11:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:11:26,561 INFO L225 Difference]: With dead ends: 83 [2020-10-24 15:11:26,565 INFO L226 Difference]: Without dead ends: 39 [2020-10-24 15:11:26,571 INFO L677 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 [2020-10-24 15:11:26,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-24 15:11:26,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-24 15:11:26,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-24 15:11:26,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-10-24 15:11:26,623 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 15 [2020-10-24 15:11:26,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:11:26,624 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-10-24 15:11:26,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 15:11:26,624 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-10-24 15:11:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-24 15:11:26,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:11:26,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:11:26,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 15:11:26,630 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:11:26,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:11:26,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1291452088, now seen corresponding path program 1 times [2020-10-24 15:11:26,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:11:26,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671980180] [2020-10-24 15:11:26,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:11:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:11:26,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:11:26,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671980180] [2020-10-24 15:11:26,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:11:26,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 15:11:26,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216685347] [2020-10-24 15:11:26,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 15:11:26,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 15:11:26,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 15:11:26,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 15:11:26,786 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 3 states. [2020-10-24 15:11:26,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:11:26,807 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2020-10-24 15:11:26,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 15:11:26,808 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-10-24 15:11:26,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:11:26,809 INFO L225 Difference]: With dead ends: 42 [2020-10-24 15:11:26,809 INFO L226 Difference]: Without dead ends: 39 [2020-10-24 15:11:26,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 15:11:26,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-24 15:11:26,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-24 15:11:26,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-24 15:11:26,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2020-10-24 15:11:26,817 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 18 [2020-10-24 15:11:26,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:11:26,817 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2020-10-24 15:11:26,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 15:11:26,818 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2020-10-24 15:11:26,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-24 15:11:26,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:11:26,819 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:11:26,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 15:11:26,820 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:11:26,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:11:26,820 INFO L82 PathProgramCache]: Analyzing trace with hash -182496670, now seen corresponding path program 1 times [2020-10-24 15:11:26,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:11:26,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543616370] [2020-10-24 15:11:26,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:11:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:11:26,912 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:11:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:11:27,007 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:11:27,072 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 15:11:27,072 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 15:11:27,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 15:11:27,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:11:27 BoogieIcfgContainer [2020-10-24 15:11:27,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 15:11:27,118 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 15:11:27,118 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 15:11:27,118 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 15:11:27,118 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:11:26" (3/4) ... [2020-10-24 15:11:27,122 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 15:11:27,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 15:11:27,125 INFO L168 Benchmark]: Toolchain (without parser) took 2174.58 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.5 MB in the beginning and 35.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:27,128 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 46.1 MB. Free memory was 28.6 MB in the beginning and 28.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:27,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.98 ms. Allocated memory is still 46.1 MB. Free memory was 22.9 MB in the beginning and 23.0 MB in the end (delta: -120.6 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:27,129 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.32 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 21.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:27,130 INFO L168 Benchmark]: Boogie Preprocessor took 47.14 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 40.9 MB in the end (delta: -19.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:27,131 INFO L168 Benchmark]: RCFGBuilder took 652.45 ms. Allocated memory is still 56.6 MB. Free memory was 40.9 MB in the beginning and 28.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:27,132 INFO L168 Benchmark]: TraceAbstraction took 1047.79 ms. Allocated memory is still 56.6 MB. Free memory was 28.4 MB in the beginning and 35.7 MB in the end (delta: -7.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:27,133 INFO L168 Benchmark]: Witness Printer took 4.67 ms. Allocated memory is still 56.6 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:27,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 46.1 MB. Free memory was 28.6 MB in the beginning and 28.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 351.98 ms. Allocated memory is still 46.1 MB. Free memory was 22.9 MB in the beginning and 23.0 MB in the end (delta: -120.6 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.32 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 21.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.14 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 40.9 MB in the end (delta: -19.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 652.45 ms. Allocated memory is still 56.6 MB. Free memory was 40.9 MB in the beginning and 28.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1047.79 ms. Allocated memory is still 56.6 MB. Free memory was 28.4 MB in the beginning and 35.7 MB in the end (delta: -7.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.67 ms. Allocated memory is still 56.6 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 106, overapproximation of bitwiseAnd at line 95, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 111. Possible FailurePath: [L14] static const float one_modf = 1.0; VAL [one_modf=1] [L106] float x = -1.0f / 0.0f; [L107] float iptr = __VERIFIER_nondet_float(); [L17] __int32_t i0, j0; [L18] __uint32_t i; VAL [one_modf=1] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (i0) = gf_u.word [L24] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [one_modf=1] [L25] COND TRUE j0 < 23 VAL [one_modf=1] [L26] COND TRUE j0 < 0 VAL [one_modf=1] [L28] ieee_float_shape_type sf_u; [L29] sf_u.word = (i0 & 0x80000000) [L30] EXPR sf_u.value [L30] (*iptr) = sf_u.value [L32] return x; VAL [one_modf=1] [L108] float res = modf_float(x, &iptr); [L111] EXPR \read(iptr) [L89] __int32_t ix; VAL [one_modf=1] [L91] ieee_float_shape_type gf_u; [L92] gf_u.value = (x) [L93] EXPR gf_u.word [L93] (ix) = gf_u.word [L95] ix &= 0x7fffffff [L96] return ((ix) == 0x7f800000L); VAL [one_modf=1] [L111] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) [L111] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_modf=1] [L111] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) VAL [one_modf=1] [L111] COND TRUE isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_1211b.c", 3, "reach_error") VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 89 SDtfs, 0 SDslu, 37 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 502 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-ee8e70e [2020-10-24 15:11:29,618 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-10-24 15:11:29,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:11:29,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:11:29,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:11:29,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:11:29,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:11:29,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:11:29,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:11:29,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:11:29,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:11:29,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:11:29,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:11:29,764 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 15:11:29,821 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:11:29,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:11:29,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:11:29,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:11:29,825 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:11:29,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:11:29,825 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:11:29,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:11:29,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:11:29,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:11:29,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:11:29,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:11:29,827 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 15:11:29,828 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 15:11:29,828 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:11:29,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:11:29,828 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:11:29,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:11:29,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:11:29,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:11:29,830 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:11:29,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:11:29,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:11:29,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:11:29,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:11:29,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:11:29,831 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 15:11:29,832 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 15:11:29,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:11:29,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:11:29,832 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 15:11:29,833 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46a654e5cd481c0250a48d4dd25ca48ac714310d [2020-10-24 15:11:30,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:11:30,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:11:30,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:11:30,335 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:11:30,336 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:11:30,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1211b.c [2020-10-24 15:11:30,428 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a739d0d21/d7988074fe714032a5d0ce67ffd5c07f/FLAG863115077 [2020-10-24 15:11:31,151 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:11:31,151 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211b.c [2020-10-24 15:11:31,163 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a739d0d21/d7988074fe714032a5d0ce67ffd5c07f/FLAG863115077 [2020-10-24 15:11:31,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a739d0d21/d7988074fe714032a5d0ce67ffd5c07f [2020-10-24 15:11:31,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:11:31,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:11:31,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:11:31,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:11:31,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:11:31,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:31" (1/1) ... [2020-10-24 15:11:31,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df8dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:31, skipping insertion in model container [2020-10-24 15:11:31,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:31" (1/1) ... [2020-10-24 15:11:31,536 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:11:31,556 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:11:31,751 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:11:31,774 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:11:31,814 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:11:31,838 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:11:31,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:31 WrapperNode [2020-10-24 15:11:31,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:11:31,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:11:31,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:11:31,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:11:31,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:31" (1/1) ... [2020-10-24 15:11:31,860 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:11:31,862 ERROR L1131 TypeChecker]: : Modifies clause contains #t~nondet7 which is not a global variable [2020-10-24 15:11:31,864 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner has thrown an exception: java.lang.AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.internalError(TypeCheckHelper.java:297) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.checkExistingDeclarationInformation(TypeChecker.java:340) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckLeftHandSide(TypeChecker.java:360) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckStatement(TypeChecker.java:781) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.typecheckBlock(TypeChecker.java:846) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.processBody(TypeChecker.java:957) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.processImplementation(TypeChecker.java:1033) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.TypeChecker.process(TypeChecker.java:1120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:156) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-24 15:11:31,869 INFO L168 Benchmark]: Toolchain (without parser) took 375.25 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.4 MB in the beginning and 29.8 MB in the end (delta: -11.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:31,870 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 41.9 MB. Free memory was 27.9 MB in the beginning and 27.9 MB in the end (delta: 37.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:31,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.91 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 26.7 MB in the beginning and 30.8 MB in the end (delta: -4.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-10-24 15:11:31,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.97 ms. Allocated memory is still 50.3 MB. Free memory was 30.8 MB in the beginning and 29.8 MB in the end (delta: 980.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:11:31,876 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 41.9 MB. Free memory was 27.9 MB in the beginning and 27.9 MB in the end (delta: 37.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 325.91 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 26.7 MB in the beginning and 30.8 MB in the end (delta: -4.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.97 ms. Allocated memory is still 50.3 MB. Free memory was 30.8 MB in the beginning and 29.8 MB in the end (delta: 980.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet7 which is not a global variable - TypeErrorResult [Line: -1]: Type Error Modifies clause contains #t~nondet7 which is not a global variable * Results from de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: - ExceptionOrErrorResult: AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: AssertionError: Incorrect DeclarationInformation of "#t~nondet7". Expected: Found: GLOBAL: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.internalError(TypeCheckHelper.java:297) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...