./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0832.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0832.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 e3677de697f2e465cd606b8f0d05818e7deafda1 .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0832.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 e3677de697f2e465cd606b8f0d05818e7deafda1 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:11:44,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:11:44,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:11:44,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:11:44,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:11:44,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:11:44,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:11:44,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:11:44,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:11:44,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:11:44,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:11:44,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:11:44,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:11:44,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:11:44,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:11:44,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:11:44,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:11:44,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:11:44,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:11:44,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:11:44,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:11:44,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:11:44,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:11:44,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:11:44,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:11:44,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:11:44,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:11:44,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:11:44,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:11:44,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:11:44,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:11:44,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:11:44,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:11:44,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:11:44,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:11:44,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:11:44,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:11:44,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:11:44,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:11:44,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:11:44,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:11:44,396 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:11:44,425 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:11:44,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:11:44,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:11:44,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:11:44,427 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:11:44,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:11:44,428 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:11:44,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:11:44,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:11:44,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:11:44,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:11:44,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:11:44,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:11:44,430 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:11:44,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:11:44,431 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:11:44,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:11:44,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:11:44,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:11:44,432 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:11:44,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:11:44,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:11:44,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:11:44,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:11:44,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:11:44,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:11:44,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:11:44,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:11:44,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:11:44,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3677de697f2e465cd606b8f0d05818e7deafda1 [2020-10-24 23:11:44,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:11:44,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:11:44,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:11:44,970 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:11:44,972 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:11:44,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2020-10-24 23:11:45,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34b57ef2d/248876eab92c49cda570186905006632/FLAGb05620049 [2020-10-24 23:11:45,657 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:11:45,663 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2020-10-24 23:11:45,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34b57ef2d/248876eab92c49cda570186905006632/FLAGb05620049 [2020-10-24 23:11:46,024 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34b57ef2d/248876eab92c49cda570186905006632 [2020-10-24 23:11:46,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:11:46,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:11:46,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:11:46,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:11:46,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:11:46,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:11:46" (1/1) ... [2020-10-24 23:11:46,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c330de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:46, skipping insertion in model container [2020-10-24 23:11:46,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:11:46" (1/1) ... [2020-10-24 23:11:46,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:11:46,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:11:46,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:11:46,338 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:11:46,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:11:46,407 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:11:46,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:46 WrapperNode [2020-10-24 23:11:46,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:11:46,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:11:46,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:11:46,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:11:46,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:46" (1/1) ... [2020-10-24 23:11:46,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:46" (1/1) ... [2020-10-24 23:11:46,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:11:46,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:11:46,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:11:46,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:11:46,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:46" (1/1) ... [2020-10-24 23:11:46,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:46" (1/1) ... [2020-10-24 23:11:46,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:46" (1/1) ... [2020-10-24 23:11:46,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:46" (1/1) ... [2020-10-24 23:11:46,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:46" (1/1) ... [2020-10-24 23:11:46,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:46" (1/1) ... [2020-10-24 23:11:46,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:46" (1/1) ... [2020-10-24 23:11:46,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:11:46,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:11:46,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:11:46,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:11:46,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 23:11:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:11:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:11:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:11:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:11:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:11:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:11:46,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:11:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:11:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 23:11:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:11:47,294 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:11:47,294 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-24 23:11:47,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:11:47 BoogieIcfgContainer [2020-10-24 23:11:47,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:11:47,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:11:47,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:11:47,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:11:47,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:11:46" (1/3) ... [2020-10-24 23:11:47,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1a697e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:11:47, skipping insertion in model container [2020-10-24 23:11:47,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:46" (2/3) ... [2020-10-24 23:11:47,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1a697e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:11:47, skipping insertion in model container [2020-10-24 23:11:47,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:11:47" (3/3) ... [2020-10-24 23:11:47,305 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2020-10-24 23:11:47,320 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:11:47,326 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:11:47,341 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:11:47,376 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:11:47,376 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:11:47,377 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:11:47,377 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:11:47,377 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:11:47,377 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:11:47,377 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:11:47,377 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:11:47,393 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-10-24 23:11:47,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:11:47,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:11:47,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:11:47,401 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:11:47,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:11:47,408 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2020-10-24 23:11:47,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:11:47,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861372331] [2020-10-24 23:11:47,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:11:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:11:47,598 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 23:11:47,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861372331] [2020-10-24 23:11:47,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:11:47,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:11:47,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2409387] [2020-10-24 23:11:47,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:11:47,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:11:47,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:11:47,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:11:47,620 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-10-24 23:11:47,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:11:47,640 INFO L93 Difference]: Finished difference Result 80 states and 129 transitions. [2020-10-24 23:11:47,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:11:47,642 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-24 23:11:47,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:11:47,652 INFO L225 Difference]: With dead ends: 80 [2020-10-24 23:11:47,653 INFO L226 Difference]: Without dead ends: 37 [2020-10-24 23:11:47,662 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 23:11:47,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-24 23:11:47,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-24 23:11:47,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-24 23:11:47,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2020-10-24 23:11:47,699 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2020-10-24 23:11:47,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:11:47,700 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2020-10-24 23:11:47,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:11:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2020-10-24 23:11:47,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 23:11:47,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:11:47,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:11:47,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:11:47,701 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:11:47,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:11:47,702 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2020-10-24 23:11:47,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:11:47,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64127045] [2020-10-24 23:11:47,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:11:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:11:47,784 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:11:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:11:47,841 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:11:47,879 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:11:47,879 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:11:47,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:11:47,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:11:47 BoogieIcfgContainer [2020-10-24 23:11:47,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:11:47,964 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:11:47,964 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:11:47,964 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:11:47,965 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:11:47" (3/4) ... [2020-10-24 23:11:47,971 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:11:47,971 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:11:47,976 INFO L168 Benchmark]: Toolchain (without parser) took 1940.91 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.7 MB in the beginning and 28.9 MB in the end (delta: -6.2 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:47,977 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 46.1 MB. Free memory was 27.8 MB in the beginning and 27.7 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:11:47,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.70 ms. Allocated memory is still 46.1 MB. Free memory was 22.1 MB in the beginning and 21.3 MB in the end (delta: 728.7 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:47,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.61 ms. Allocated memory is still 46.1 MB. Free memory was 21.3 MB in the beginning and 19.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:47,983 INFO L168 Benchmark]: Boogie Preprocessor took 58.13 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 19.3 MB in the beginning and 39.3 MB in the end (delta: -20.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:47,985 INFO L168 Benchmark]: RCFGBuilder took 771.39 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 26.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:47,986 INFO L168 Benchmark]: TraceAbstraction took 665.52 ms. Allocated memory is still 56.6 MB. Free memory was 25.8 MB in the beginning and 29.2 MB in the end (delta: -3.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:11:47,987 INFO L168 Benchmark]: Witness Printer took 7.48 ms. Allocated memory is still 56.6 MB. Free memory was 29.2 MB in the beginning and 28.9 MB in the end (delta: 306.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:11:47,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 46.1 MB. Free memory was 27.8 MB in the beginning and 27.7 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 364.70 ms. Allocated memory is still 46.1 MB. Free memory was 22.1 MB in the beginning and 21.3 MB in the end (delta: 728.7 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.61 ms. Allocated memory is still 46.1 MB. Free memory was 21.3 MB in the beginning and 19.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.13 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 19.3 MB in the beginning and 39.3 MB in the end (delta: -20.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 771.39 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 26.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 665.52 ms. Allocated memory is still 56.6 MB. Free memory was 25.8 MB in the beginning and 29.2 MB in the end (delta: -3.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.48 ms. Allocated memory is still 56.6 MB. Free memory was 29.2 MB in the beginning and 28.9 MB in the end (delta: 306.4 kB). 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 someUnaryDOUBLEoperation at line 23, overapproximation of bitwiseAnd at line 56, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 146. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L139] double x = __VERIFIER_nondet_double(); [L141] COND TRUE x == 0.0 || x == -0.0 [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L143] double res = __ieee754_exp(x); [L146] COND TRUE res != 1.0 VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_0832.c", 3, "reach_error") VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, 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=42occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:11:50,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:11:50,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:11:50,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 23:11:50,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:11:50,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:11:50,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:11:50,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:11:50,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:11:50,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:11:50,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:11:50,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:11:50,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:11:50,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:11:50,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:11:50,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:11:50,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 23:11:50,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:11:50,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:11:50,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:11:50,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:11:50,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:11:50,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:11:50,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:11:50,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:11:50,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:11:50,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:11:50,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:11:50,866 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:11:50,908 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:11:50,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:11:50,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:11:50,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:11:50,914 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:11:50,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:11:50,915 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:11:50,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:11:50,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:11:50,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:11:50,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:11:50,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:11:50,918 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:11:50,918 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:11:50,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:11:50,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:11:50,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:11:50,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:11:50,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:11:50,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:11:50,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:11:50,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:11:50,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:11:50,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:11:50,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:11:50,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:11:50,922 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:11:50,922 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:11:50,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:11:50,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:11:50,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:11:50,923 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3677de697f2e465cd606b8f0d05818e7deafda1 [2020-10-24 23:11:51,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:11:51,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:11:51,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:11:51,431 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:11:51,432 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:11:51,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2020-10-24 23:11:51,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff5a2115a/9beb3e33ebce49ce91b711ee8bf8d5df/FLAG4823e840a [2020-10-24 23:11:52,214 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:11:52,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2020-10-24 23:11:52,229 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff5a2115a/9beb3e33ebce49ce91b711ee8bf8d5df/FLAG4823e840a [2020-10-24 23:11:52,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff5a2115a/9beb3e33ebce49ce91b711ee8bf8d5df [2020-10-24 23:11:52,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:11:52,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:11:52,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:11:52,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:11:52,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:11:52,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:11:52" (1/1) ... [2020-10-24 23:11:52,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a78110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:52, skipping insertion in model container [2020-10-24 23:11:52,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:11:52" (1/1) ... [2020-10-24 23:11:52,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:11:52,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:11:52,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:11:52,855 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:11:52,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:11:52,994 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:11:52,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:52 WrapperNode [2020-10-24 23:11:52,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:11:52,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:11:52,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:11:52,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:11:53,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:52" (1/1) ... [2020-10-24 23:11:53,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:52" (1/1) ... [2020-10-24 23:11:53,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:11:53,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:11:53,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:11:53,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:11:53,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:52" (1/1) ... [2020-10-24 23:11:53,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:52" (1/1) ... [2020-10-24 23:11:53,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:52" (1/1) ... [2020-10-24 23:11:53,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:52" (1/1) ... [2020-10-24 23:11:53,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:52" (1/1) ... [2020-10-24 23:11:53,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:52" (1/1) ... [2020-10-24 23:11:53,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:52" (1/1) ... [2020-10-24 23:11:53,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:11:53,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:11:53,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:11:53,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:11:53,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 23:11:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-24 23:11:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-24 23:11:53,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:11:53,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:11:53,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-10-24 23:11:53,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:11:53,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:11:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:11:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:11:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:12:06,448 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:12:06,448 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-24 23:12:06,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:06 BoogieIcfgContainer [2020-10-24 23:12:06,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:12:06,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:12:06,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:12:06,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:12:06,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:11:52" (1/3) ... [2020-10-24 23:12:06,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498c9dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:12:06, skipping insertion in model container [2020-10-24 23:12:06,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:11:52" (2/3) ... [2020-10-24 23:12:06,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498c9dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:12:06, skipping insertion in model container [2020-10-24 23:12:06,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:06" (3/3) ... [2020-10-24 23:12:06,461 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2020-10-24 23:12:06,473 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:12:06,479 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:12:06,492 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:12:06,521 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:12:06,521 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:12:06,521 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:12:06,522 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:12:06,522 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:12:06,522 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:12:06,522 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:12:06,522 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:12:06,538 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-10-24 23:12:06,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:12:06,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:12:06,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:12:06,547 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:12:06,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:12:06,554 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2020-10-24 23:12:06,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:12:06,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135882392] [2020-10-24 23:12:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 23:12:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:12:07,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:12:07,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:12:07,072 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 23:12:07,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:12:07,081 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 23:12:07,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135882392] [2020-10-24 23:12:07,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:12:07,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:12:07,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753357374] [2020-10-24 23:12:07,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:12:07,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:12:07,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:12:07,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:12:07,121 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-10-24 23:12:07,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:12:07,167 INFO L93 Difference]: Finished difference Result 80 states and 129 transitions. [2020-10-24 23:12:07,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:12:07,168 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-24 23:12:07,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:12:07,179 INFO L225 Difference]: With dead ends: 80 [2020-10-24 23:12:07,179 INFO L226 Difference]: Without dead ends: 37 [2020-10-24 23:12:07,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 23:12:07,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-24 23:12:07,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-24 23:12:07,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-24 23:12:07,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2020-10-24 23:12:07,231 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2020-10-24 23:12:07,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:12:07,232 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2020-10-24 23:12:07,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:12:07,232 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2020-10-24 23:12:07,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 23:12:07,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:12:07,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:12:07,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:12:07,449 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:12:07,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:12:07,451 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2020-10-24 23:12:07,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:12:07,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375512276] [2020-10-24 23:12:07,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 23:12:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:12:07,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:12:07,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:12:08,024 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 23:12:08,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:12:08,112 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 23:12:08,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375512276] [2020-10-24 23:12:08,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:12:08,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:12:08,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036444375] [2020-10-24 23:12:08,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:12:08,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:12:08,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:12:08,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:12:08,118 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 8 states. [2020-10-24 23:12:19,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:12:19,507 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2020-10-24 23:12:20,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:12:20,348 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-10-24 23:12:20,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:12:20,349 INFO L225 Difference]: With dead ends: 61 [2020-10-24 23:12:20,349 INFO L226 Difference]: Without dead ends: 31 [2020-10-24 23:12:20,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:12:20,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-24 23:12:20,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2020-10-24 23:12:20,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-24 23:12:20,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-10-24 23:12:20,356 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 12 [2020-10-24 23:12:20,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:12:20,356 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-10-24 23:12:20,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:12:20,357 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-10-24 23:12:20,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:12:20,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:12:20,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:12:20,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:12:20,560 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:12:20,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:12:20,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1714660040, now seen corresponding path program 1 times [2020-10-24 23:12:20,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:12:20,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326371225] [2020-10-24 23:12:20,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 23:12:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:12:20,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:12:20,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:12:21,509 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-10-24 23:12:22,113 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-10-24 23:12:22,153 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 23:12:22,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:12:24,280 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-10-24 23:12:24,290 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 23:12:27,580 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 13 [2020-10-24 23:12:27,584 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 23:12:27,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326371225] [2020-10-24 23:12:27,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:12:27,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-24 23:12:27,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090611578] [2020-10-24 23:12:27,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 23:12:27,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:12:27,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 23:12:27,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:12:27,588 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 10 states. [2020-10-24 23:12:28,717 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-10-24 23:12:30,096 WARN L193 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-10-24 23:13:04,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:13:04,175 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-24 23:13:04,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 23:13:04,176 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2020-10-24 23:13:04,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:13:04,177 INFO L225 Difference]: With dead ends: 31 [2020-10-24 23:13:04,177 INFO L226 Difference]: Without dead ends: 27 [2020-10-24 23:13:04,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-24 23:13:04,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-24 23:13:04,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-24 23:13:04,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-24 23:13:04,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-24 23:13:04,182 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 13 [2020-10-24 23:13:04,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:13:04,183 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-24 23:13:04,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 23:13:04,183 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-24 23:13:04,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 23:13:04,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:13:04,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:13:04,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:13:04,394 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:13:04,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:13:04,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1479203763, now seen corresponding path program 1 times [2020-10-24 23:13:04,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:13:04,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466986859] [2020-10-24 23:13:04,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 23:13:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:13:07,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 23:13:07,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:13:07,769 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 23:13:07,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:13:08,835 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-24 23:13:08,838 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 23:13:11,442 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2020-10-24 23:13:11,447 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 23:13:11,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466986859] [2020-10-24 23:13:11,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:13:11,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 23:13:11,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955008749] [2020-10-24 23:13:11,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 23:13:11,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:13:11,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 23:13:11,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 23:13:11,450 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 6 states. [2020-10-24 23:13:11,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:13:11,713 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-10-24 23:13:11,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 23:13:11,715 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-24 23:13:11,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:13:11,716 INFO L225 Difference]: With dead ends: 27 [2020-10-24 23:13:11,716 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:13:11,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 23:13:11,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:13:11,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:13:11,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:13:11,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:13:11,717 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-24 23:13:11,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:13:11,718 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:13:11,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 23:13:11,718 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:13:11,719 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:13:11,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 23:13:11,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:13:12,495 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-10-24 23:13:12,549 INFO L274 CegarLoopResult]: For program point L60(lines 60 71) no Hoare annotation was computed. [2020-10-24 23:13:12,549 INFO L274 CegarLoopResult]: For program point L118-1(lines 118 122) no Hoare annotation was computed. [2020-10-24 23:13:12,549 INFO L270 CegarLoopResult]: At program point L118-2(lines 118 122) the Hoare annotation is: false [2020-10-24 23:13:12,549 INFO L274 CegarLoopResult]: For program point L102(lines 102 130) no Hoare annotation was computed. [2020-10-24 23:13:12,550 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:13:12,550 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:13:12,550 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:13:12,550 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:13:12,550 INFO L277 CegarLoopResult]: At program point L152(lines 133 153) the Hoare annotation is: true [2020-10-24 23:13:12,550 INFO L274 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-24 23:13:12,550 INFO L274 CegarLoopResult]: For program point L70-2(line 70) no Hoare annotation was computed. [2020-10-24 23:13:12,550 INFO L274 CegarLoopResult]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2020-10-24 23:13:12,550 INFO L270 CegarLoopResult]: At program point L62-2(lines 62 66) the Hoare annotation is: false [2020-10-24 23:13:12,551 INFO L274 CegarLoopResult]: For program point L62-3(lines 60 71) no Hoare annotation was computed. [2020-10-24 23:13:12,551 INFO L274 CegarLoopResult]: For program point L79(lines 79 88) no Hoare annotation was computed. [2020-10-24 23:13:12,551 INFO L274 CegarLoopResult]: For program point L79-2(lines 79 88) no Hoare annotation was computed. [2020-10-24 23:13:12,551 INFO L274 CegarLoopResult]: For program point L104-1(lines 104 108) no Hoare annotation was computed. [2020-10-24 23:13:12,551 INFO L270 CegarLoopResult]: At program point L104-2(lines 104 108) the Hoare annotation is: false [2020-10-24 23:13:12,551 INFO L270 CegarLoopResult]: At program point L129(lines 46 131) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (exists ((ULTIMATE.start___ieee754_exp_~x (_ FloatingPoint 11 53))) (and (= (fp.add currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) ULTIMATE.start___ieee754_exp_~x) |ULTIMATE.start___ieee754_exp_#res|) (fp.eq ULTIMATE.start___ieee754_exp_~x (fp.neg (_ +zero 11 53))))) (fp.eq ULTIMATE.start___ieee754_exp_~x (fp.neg (_ +zero 11 53)))) [2020-10-24 23:13:12,552 INFO L274 CegarLoopResult]: For program point L146(lines 146 149) no Hoare annotation was computed. [2020-10-24 23:13:12,552 INFO L274 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2020-10-24 23:13:12,552 INFO L274 CegarLoopResult]: For program point L98(lines 98 101) no Hoare annotation was computed. [2020-10-24 23:13:12,552 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:13:12,552 INFO L274 CegarLoopResult]: For program point L123(lines 123 128) no Hoare annotation was computed. [2020-10-24 23:13:12,552 INFO L274 CegarLoopResult]: For program point L90(lines 90 93) no Hoare annotation was computed. [2020-10-24 23:13:12,553 INFO L274 CegarLoopResult]: For program point L123-1(lines 116 130) no Hoare annotation was computed. [2020-10-24 23:13:12,553 INFO L274 CegarLoopResult]: For program point L123-2(lines 123 128) no Hoare annotation was computed. [2020-10-24 23:13:12,553 INFO L274 CegarLoopResult]: For program point L90-2(lines 78 93) no Hoare annotation was computed. [2020-10-24 23:13:12,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:13:12,554 INFO L274 CegarLoopResult]: For program point L74(lines 74 75) no Hoare annotation was computed. [2020-10-24 23:13:12,554 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:13:12,554 INFO L274 CegarLoopResult]: For program point L91(lines 91 92) no Hoare annotation was computed. [2020-10-24 23:13:12,554 INFO L274 CegarLoopResult]: For program point L141(lines 141 150) no Hoare annotation was computed. [2020-10-24 23:13:12,554 INFO L274 CegarLoopResult]: For program point L141-2(lines 141 150) no Hoare annotation was computed. [2020-10-24 23:13:12,554 INFO L274 CegarLoopResult]: For program point L59(lines 59 76) no Hoare annotation was computed. [2020-10-24 23:13:12,555 INFO L274 CegarLoopResult]: For program point L59-2(lines 46 131) no Hoare annotation was computed. [2020-10-24 23:13:12,555 INFO L274 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-10-24 23:13:12,555 INFO L270 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: (and (= ~huge_exp~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (fp.eq ULTIMATE.start___ieee754_exp_~x (fp.neg (_ +zero 11 53)))) [2020-10-24 23:13:12,555 INFO L274 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-10-24 23:13:12,556 INFO L274 CegarLoopResult]: For program point L109(lines 109 114) no Hoare annotation was computed. [2020-10-24 23:13:12,556 INFO L274 CegarLoopResult]: For program point L109-1(lines 102 116) no Hoare annotation was computed. [2020-10-24 23:13:12,556 INFO L274 CegarLoopResult]: For program point L109-2(lines 109 114) no Hoare annotation was computed. [2020-10-24 23:13:12,574 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:13:12,575 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-24 23:13:12,575 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-24 23:13:12,577 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,578 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,588 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,592 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:13:12,594 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-24 23:13:12,595 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-24 23:13:12,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,596 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:13:12,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,598 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:13:12,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:13:12 BoogieIcfgContainer [2020-10-24 23:13:12,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:13:12,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:13:12,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:13:12,606 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:13:12,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:06" (3/4) ... [2020-10-24 23:13:12,611 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:13:12,630 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-24 23:13:12,631 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-24 23:13:12,632 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:13:12,632 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:13:12,672 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) && ~fp.eq~DOUBLE(x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) [2020-10-24 23:13:12,758 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:13:12,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:13:12,761 INFO L168 Benchmark]: Toolchain (without parser) took 80246.68 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.0 MB in the beginning and 34.4 MB in the end (delta: -12.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:13:12,761 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 46.1 MB. Free memory was 28.8 MB in the beginning and 28.8 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:13:12,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.53 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.4 MB in the beginning and 38.7 MB in the end (delta: -17.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:13:12,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.93 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 36.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:13:12,763 INFO L168 Benchmark]: Boogie Preprocessor took 70.94 ms. Allocated memory is still 56.6 MB. Free memory was 36.4 MB in the beginning and 34.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:13:12,763 INFO L168 Benchmark]: RCFGBuilder took 13321.23 ms. Allocated memory is still 56.6 MB. Free memory was 34.1 MB in the beginning and 32.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:13:12,764 INFO L168 Benchmark]: TraceAbstraction took 66152.93 ms. Allocated memory is still 56.6 MB. Free memory was 32.1 MB in the beginning and 23.5 MB in the end (delta: 8.5 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:13:12,765 INFO L168 Benchmark]: Witness Printer took 153.23 ms. Allocated memory is still 56.6 MB. Free memory was 23.5 MB in the beginning and 34.4 MB in the end (delta: -10.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:13:12,768 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 46.1 MB. Free memory was 28.8 MB in the beginning and 28.8 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 471.53 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.4 MB in the beginning and 38.7 MB in the end (delta: -17.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.93 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 36.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.94 ms. Allocated memory is still 56.6 MB. Free memory was 36.4 MB in the beginning and 34.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 13321.23 ms. Allocated memory is still 56.6 MB. Free memory was 34.1 MB in the beginning and 32.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 66152.93 ms. Allocated memory is still 56.6 MB. Free memory was 32.1 MB in the beginning and 23.5 MB in the end (delta: 8.5 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Witness Printer took 153.23 ms. Allocated memory is still 56.6 MB. Free memory was 23.5 MB in the beginning and 34.4 MB in the end (delta: -10.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant [2020-10-24 23:13:12,779 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:13:12,779 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-24 23:13:12,779 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-24 23:13:12,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,781 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:13:12,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-24 23:13:12,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-24 23:13:12,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) && ~fp.eq~DOUBLE(x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 51]: Loop Invariant [2020-10-24 23:13:12,783 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:13:12,783 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,783 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,784 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:13:12,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:13:12,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((huge_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && ~fp.eq~DOUBLE(x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 65.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 49.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 106 SDtfs, 61 SDslu, 171 SDs, 0 SdLazy, 49 SolverSat, 5 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 42.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 49 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 94 ConstructedInterpolants, 10 QuantifiedInterpolants, 7497 SizeOfPredicates, 21 NumberOfNonLiveVariables, 347 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...