./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0740.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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_0740.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 755a3cc6a0c274616c745647082171c18148354d ................................................................................................................................................................................................................................................................................................ 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_0740.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 755a3cc6a0c274616c745647082171c18148354d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 21:50:32,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:50:32,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:50:32,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:50:32,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:50:32,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:50:32,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:50:32,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:50:32,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:50:32,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:50:32,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:50:32,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:50:32,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:50:32,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:50:32,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:50:32,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:50:32,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:50:32,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:50:32,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:50:32,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:50:32,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:50:32,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:50:32,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:50:32,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:50:32,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:50:32,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:50:32,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:50:32,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:50:32,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:50:32,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:50:32,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:50:32,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:50:32,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:50:32,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:50:32,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:50:32,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:50:32,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:50:32,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:50:32,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:50:32,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:50:32,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:50:32,377 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:50:32,432 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:50:32,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:50:32,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:50:32,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:50:32,437 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:50:32,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:50:32,438 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:50:32,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:50:32,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:50:32,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:50:32,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:50:32,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:50:32,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:50:32,441 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:50:32,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:50:32,442 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:50:32,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:50:32,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:50:32,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:50:32,443 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:50:32,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:50:32,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:50:32,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:50:32,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:50:32,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:50:32,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:50:32,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:50:32,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:50:32,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:50:32,445 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 755a3cc6a0c274616c745647082171c18148354d [2020-10-25 21:50:32,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:50:32,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:50:32,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:50:32,956 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:50:32,957 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:50:32,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0740.c [2020-10-25 21:50:33,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff78e29b/94bb2cdfbbf34630bf317c36622ca7cf/FLAGefe212539 [2020-10-25 21:50:33,751 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:50:33,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0740.c [2020-10-25 21:50:33,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff78e29b/94bb2cdfbbf34630bf317c36622ca7cf/FLAGefe212539 [2020-10-25 21:50:34,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff78e29b/94bb2cdfbbf34630bf317c36622ca7cf [2020-10-25 21:50:34,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:50:34,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:50:34,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:50:34,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:50:34,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:50:34,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:50:34" (1/1) ... [2020-10-25 21:50:34,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57947873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:34, skipping insertion in model container [2020-10-25 21:50:34,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:50:34" (1/1) ... [2020-10-25 21:50:34,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:50:34,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:50:34,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:50:34,488 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:50:34,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:50:34,589 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:50:34,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:34 WrapperNode [2020-10-25 21:50:34,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:50:34,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:50:34,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:50:34,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:50:34,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:34" (1/1) ... [2020-10-25 21:50:34,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:34" (1/1) ... [2020-10-25 21:50:34,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:50:34,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:50:34,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:50:34,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:50:34,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:34" (1/1) ... [2020-10-25 21:50:34,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:34" (1/1) ... [2020-10-25 21:50:34,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:34" (1/1) ... [2020-10-25 21:50:34,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:34" (1/1) ... [2020-10-25 21:50:34,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:34" (1/1) ... [2020-10-25 21:50:34,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:34" (1/1) ... [2020-10-25 21:50:34,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:34" (1/1) ... [2020-10-25 21:50:34,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:50:34,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:50:34,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:50:34,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:50:34,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:34" (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 [2020-10-25 21:50:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:50:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:50:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-25 21:50:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-25 21:50:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-25 21:50:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:50:34,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:50:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 21:50:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:50:35,449 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:50:35,449 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-25 21:50:35,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:50:35 BoogieIcfgContainer [2020-10-25 21:50:35,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:50:35,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:50:35,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:50:35,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:50:35,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:50:34" (1/3) ... [2020-10-25 21:50:35,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ba74c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:50:35, skipping insertion in model container [2020-10-25 21:50:35,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:34" (2/3) ... [2020-10-25 21:50:35,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ba74c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:50:35, skipping insertion in model container [2020-10-25 21:50:35,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:50:35" (3/3) ... [2020-10-25 21:50:35,463 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0740.c [2020-10-25 21:50:35,476 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:50:35,481 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:50:35,499 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:50:35,531 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:50:35,531 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:50:35,531 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:50:35,531 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:50:35,531 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:50:35,531 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:50:35,532 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:50:35,532 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:50:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-25 21:50:35,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-25 21:50:35,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:50:35,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:50:35,571 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:50:35,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:50:35,579 INFO L82 PathProgramCache]: Analyzing trace with hash 361067274, now seen corresponding path program 1 times [2020-10-25 21:50:35,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:50:35,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922751999] [2020-10-25 21:50:35,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:50:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:50:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:50:35,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922751999] [2020-10-25 21:50:35,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:50:35,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 21:50:35,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017663250] [2020-10-25 21:50:35,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:50:35,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 21:50:35,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:50:35,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:50:35,806 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-10-25 21:50:35,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:50:35,833 INFO L93 Difference]: Finished difference Result 97 states and 153 transitions. [2020-10-25 21:50:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:50:35,835 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-25 21:50:35,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:50:35,846 INFO L225 Difference]: With dead ends: 97 [2020-10-25 21:50:35,847 INFO L226 Difference]: Without dead ends: 46 [2020-10-25 21:50:35,850 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 [2020-10-25 21:50:35,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-25 21:50:35,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-25 21:50:35,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-25 21:50:35,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2020-10-25 21:50:35,894 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 8 [2020-10-25 21:50:35,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:50:35,895 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2020-10-25 21:50:35,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:50:35,895 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2020-10-25 21:50:35,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-25 21:50:35,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:50:35,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:50:35,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:50:35,897 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:50:35,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:50:35,898 INFO L82 PathProgramCache]: Analyzing trace with hash 331821581, now seen corresponding path program 1 times [2020-10-25 21:50:35,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:50:35,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725886560] [2020-10-25 21:50:35,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:50:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:50:35,949 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:50:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:50:35,981 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:50:36,011 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:50:36,011 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:50:36,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 21:50:36,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:50:36 BoogieIcfgContainer [2020-10-25 21:50:36,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:50:36,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:50:36,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:50:36,049 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:50:36,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:50:35" (3/4) ... [2020-10-25 21:50:36,054 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:50:36,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:50:36,057 INFO L168 Benchmark]: Toolchain (without parser) took 1919.66 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.2 MB in the beginning and 31.9 MB in the end (delta: -605.1 kB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-10-25 21:50:36,058 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 44.0 MB. Free memory was 24.0 MB in the beginning and 23.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:50:36,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.76 ms. Allocated memory is still 54.5 MB. Free memory was 30.6 MB in the beginning and 31.7 MB in the end (delta: -1.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:50:36,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.75 ms. Allocated memory is still 54.5 MB. Free memory was 31.7 MB in the beginning and 29.6 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:50:36,061 INFO L168 Benchmark]: Boogie Preprocessor took 79.02 ms. Allocated memory is still 54.5 MB. Free memory was 29.6 MB in the beginning and 27.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:50:36,061 INFO L168 Benchmark]: RCFGBuilder took 722.71 ms. Allocated memory is still 54.5 MB. Free memory was 27.7 MB in the beginning and 28.4 MB in the end (delta: -703.4 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:50:36,063 INFO L168 Benchmark]: TraceAbstraction took 593.43 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 27.9 MB in the beginning and 32.2 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-10-25 21:50:36,063 INFO L168 Benchmark]: Witness Printer took 6.01 ms. Allocated memory is still 67.1 MB. Free memory was 32.2 MB in the beginning and 31.9 MB in the end (delta: 363.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:50:36,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 44.0 MB. Free memory was 24.0 MB in the beginning and 23.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 443.76 ms. Allocated memory is still 54.5 MB. Free memory was 30.6 MB in the beginning and 31.7 MB in the end (delta: -1.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.75 ms. Allocated memory is still 54.5 MB. Free memory was 31.7 MB in the beginning and 29.6 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.02 ms. Allocated memory is still 54.5 MB. Free memory was 29.6 MB in the beginning and 27.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 722.71 ms. Allocated memory is still 54.5 MB. Free memory was 27.7 MB in the beginning and 28.4 MB in the end (delta: -703.4 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 593.43 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 27.9 MB in the beginning and 32.2 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * Witness Printer took 6.01 ms. Allocated memory is still 67.1 MB. Free memory was 32.2 MB in the beginning and 31.9 MB in the end (delta: 363.3 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 someBinaryDOUBLEComparisonOperation at line 132, overapproximation of someBinaryArithmeticDOUBLEoperation at line 35, overapproximation of bitwiseAnd at line 34. Possible FailurePath: [L19] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L141] double x = -1.0 / 0.0; [L22] double z; [L23] __int32_t sign = 0x80000000; [L24] __uint32_t r, t1, s1, ix1, q1; [L25] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (ix0) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (ix1) = ew_u.parts.lsw [L34] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L35] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L142] double res = __ieee754_sqrt(x); [L132] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L145] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_0740.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 68 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=50occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 0.2.0-5485861 [2020-10-25 21:50:38,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:50:38,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:50:38,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:50:38,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:50:38,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:50:38,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:50:38,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:50:38,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:50:38,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:50:38,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:50:38,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:50:38,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:50:38,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:50:38,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:50:38,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:50:38,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:50:38,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:50:38,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:50:38,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:50:38,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:50:38,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:50:38,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:50:38,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:50:38,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:50:38,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:50:38,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:50:38,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:50:38,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:50:38,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:50:38,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:50:38,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:50:38,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:50:38,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:50:38,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:50:38,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:50:38,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:50:38,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:50:38,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:50:38,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:50:38,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:50:38,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:50:38,841 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:50:38,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:50:38,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:50:38,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:50:38,845 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:50:38,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:50:38,846 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:50:38,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:50:38,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:50:38,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:50:38,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:50:38,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:50:38,849 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:50:38,849 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:50:38,849 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:50:38,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:50:38,850 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:50:38,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:50:38,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:50:38,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:50:38,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:50:38,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:50:38,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:50:38,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:50:38,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:50:38,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:50:38,852 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:50:38,852 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:50:38,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:50:38,853 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:50:38,853 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:50:38,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 755a3cc6a0c274616c745647082171c18148354d [2020-10-25 21:50:39,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:50:39,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:50:39,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:50:39,316 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:50:39,320 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:50:39,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0740.c [2020-10-25 21:50:39,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c90cad2e/ed8f2deb37864d2d96d8cc3282938f53/FLAGa5414697f [2020-10-25 21:50:40,011 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:50:40,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0740.c [2020-10-25 21:50:40,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c90cad2e/ed8f2deb37864d2d96d8cc3282938f53/FLAGa5414697f [2020-10-25 21:50:40,365 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c90cad2e/ed8f2deb37864d2d96d8cc3282938f53 [2020-10-25 21:50:40,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:50:40,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:50:40,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:50:40,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:50:40,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:50:40,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:50:40" (1/1) ... [2020-10-25 21:50:40,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14249396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:40, skipping insertion in model container [2020-10-25 21:50:40,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:50:40" (1/1) ... [2020-10-25 21:50:40,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:50:40,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:50:40,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:50:40,711 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:50:40,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:50:40,782 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:50:40,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:40 WrapperNode [2020-10-25 21:50:40,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:50:40,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:50:40,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:50:40,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:50:40,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:40" (1/1) ... [2020-10-25 21:50:40,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:40" (1/1) ... [2020-10-25 21:50:40,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:50:40,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:50:40,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:50:40,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:50:40,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:40" (1/1) ... [2020-10-25 21:50:40,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:40" (1/1) ... [2020-10-25 21:50:40,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:40" (1/1) ... [2020-10-25 21:50:40,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:40" (1/1) ... [2020-10-25 21:50:40,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:40" (1/1) ... [2020-10-25 21:50:40,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:40" (1/1) ... [2020-10-25 21:50:40,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:40" (1/1) ... [2020-10-25 21:50:40,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:50:40,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:50:40,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:50:40,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:50:40,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:40" (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 [2020-10-25 21:50:41,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-25 21:50:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-25 21:50:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:50:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:50:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-25 21:50:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:50:41,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:50:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-25 21:50:41,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:50:44,969 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:50:44,970 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-25 21:50:44,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:50:44 BoogieIcfgContainer [2020-10-25 21:50:44,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:50:44,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:50:44,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:50:44,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:50:44,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:50:40" (1/3) ... [2020-10-25 21:50:44,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54129eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:50:44, skipping insertion in model container [2020-10-25 21:50:44,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:50:40" (2/3) ... [2020-10-25 21:50:44,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54129eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:50:44, skipping insertion in model container [2020-10-25 21:50:44,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:50:44" (3/3) ... [2020-10-25 21:50:44,981 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0740.c [2020-10-25 21:50:44,993 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:50:45,003 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:50:45,017 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:50:45,047 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:50:45,047 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:50:45,048 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:50:45,048 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:50:45,048 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:50:45,048 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:50:45,048 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:50:45,049 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:50:45,064 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-25 21:50:45,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-25 21:50:45,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:50:45,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:50:45,072 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:50:45,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:50:45,078 INFO L82 PathProgramCache]: Analyzing trace with hash 361067274, now seen corresponding path program 1 times [2020-10-25 21:50:45,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:50:45,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173305397] [2020-10-25 21:50:45,091 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 [2020-10-25 21:50:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:50:45,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-25 21:50:45,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:50:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:50:45,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:50:45,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:50:45,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173305397] [2020-10-25 21:50:45,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:50:45,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-25 21:50:45,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451288460] [2020-10-25 21:50:45,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:50:45,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:50:45,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:50:45,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:50:45,645 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-10-25 21:50:45,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:50:45,670 INFO L93 Difference]: Finished difference Result 97 states and 153 transitions. [2020-10-25 21:50:45,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:50:45,672 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-25 21:50:45,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:50:45,684 INFO L225 Difference]: With dead ends: 97 [2020-10-25 21:50:45,684 INFO L226 Difference]: Without dead ends: 46 [2020-10-25 21:50:45,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:50:45,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-25 21:50:45,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-25 21:50:45,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-25 21:50:45,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2020-10-25 21:50:45,732 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 8 [2020-10-25 21:50:45,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:50:45,732 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2020-10-25 21:50:45,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:50:45,732 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2020-10-25 21:50:45,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-25 21:50:45,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:50:45,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:50:45,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:50:45,953 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:50:45,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:50:45,955 INFO L82 PathProgramCache]: Analyzing trace with hash 331821581, now seen corresponding path program 1 times [2020-10-25 21:50:45,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:50:45,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727963342] [2020-10-25 21:50:45,957 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 [2020-10-25 21:50:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:50:46,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-25 21:50:46,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:50:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:50:46,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:51:02,224 WARN L193 SmtUtils]: Spent 2.32 s on a formula simplification that was a NOOP. DAG size: 13 [2020-10-25 21:51:02,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:51:02,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727963342] [2020-10-25 21:51:02,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:51:02,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-25 21:51:02,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397299180] [2020-10-25 21:51:02,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-25 21:51:02,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:51:02,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-25 21:51:02,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=68, Unknown=1, NotChecked=0, Total=90 [2020-10-25 21:51:02,270 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand 10 states. [2020-10-25 21:51:08,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:51:08,907 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2020-10-25 21:51:08,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 21:51:08,908 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2020-10-25 21:51:08,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:51:08,909 INFO L225 Difference]: With dead ends: 51 [2020-10-25 21:51:08,910 INFO L226 Difference]: Without dead ends: 46 [2020-10-25 21:51:08,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=48, Invalid=107, Unknown=1, NotChecked=0, Total=156 [2020-10-25 21:51:08,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-25 21:51:08,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-25 21:51:08,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-25 21:51:08,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 63 transitions. [2020-10-25 21:51:08,919 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 63 transitions. Word has length 9 [2020-10-25 21:51:08,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:51:08,920 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 63 transitions. [2020-10-25 21:51:08,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-25 21:51:08,920 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 63 transitions. [2020-10-25 21:51:08,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 21:51:08,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:51:08,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:51:09,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 21:51:09,123 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:51:09,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:51:09,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1929236654, now seen corresponding path program 1 times [2020-10-25 21:51:09,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:51:09,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025470427] [2020-10-25 21:51:09,127 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 [2020-10-25 21:51:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:51:09,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-25 21:51:09,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:51:09,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:51:09,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:51:09,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:51:09,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025470427] [2020-10-25 21:51:09,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:51:09,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-25 21:51:09,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360863761] [2020-10-25 21:51:09,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 21:51:09,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:51:09,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 21:51:09,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 21:51:09,474 INFO L87 Difference]: Start difference. First operand 46 states and 63 transitions. Second operand 6 states. [2020-10-25 21:51:09,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:51:09,572 INFO L93 Difference]: Finished difference Result 46 states and 63 transitions. [2020-10-25 21:51:09,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 21:51:09,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-25 21:51:09,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:51:09,572 INFO L225 Difference]: With dead ends: 46 [2020-10-25 21:51:09,573 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 21:51:09,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-25 21:51:09,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 21:51:09,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 21:51:09,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 21:51:09,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 21:51:09,575 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-25 21:51:09,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:51:09,575 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 21:51:09,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 21:51:09,576 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 21:51:09,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 21:51:09,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-25 21:51:09,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 21:51:09,967 INFO L274 CegarLoopResult]: For program point L60(lines 60 63) no Hoare annotation was computed. [2020-10-25 21:51:09,967 INFO L274 CegarLoopResult]: For program point L27-1(lines 27 32) no Hoare annotation was computed. [2020-10-25 21:51:09,967 INFO L274 CegarLoopResult]: For program point L60-2(lines 60 63) no Hoare annotation was computed. [2020-10-25 21:51:09,967 INFO L270 CegarLoopResult]: At program point L27-2(lines 27 32) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrt_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2020-10-25 21:51:09,967 INFO L274 CegarLoopResult]: For program point L27-3(lines 21 129) no Hoare annotation was computed. [2020-10-25 21:51:09,967 INFO L274 CegarLoopResult]: For program point L52-2(lines 52 53) no Hoare annotation was computed. [2020-10-25 21:51:09,968 INFO L270 CegarLoopResult]: At program point L52-3(lines 52 53) the Hoare annotation is: false [2020-10-25 21:51:09,968 INFO L274 CegarLoopResult]: For program point L52-4(lines 52 53) no Hoare annotation was computed. [2020-10-25 21:51:09,968 INFO L274 CegarLoopResult]: For program point L110(lines 110 111) no Hoare annotation was computed. [2020-10-25 21:51:09,968 INFO L274 CegarLoopResult]: For program point L110-2(lines 110 111) no Hoare annotation was computed. [2020-10-25 21:51:09,968 INFO L274 CegarLoopResult]: For program point L102(lines 102 116) no Hoare annotation was computed. [2020-10-25 21:51:09,968 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 21:51:09,968 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 21:51:09,968 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 21:51:09,968 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 21:51:09,969 INFO L274 CegarLoopResult]: For program point L119(lines 119 120) no Hoare annotation was computed. [2020-10-25 21:51:09,969 INFO L274 CegarLoopResult]: For program point L119-2(lines 119 120) no Hoare annotation was computed. [2020-10-25 21:51:09,969 INFO L270 CegarLoopResult]: At program point L128(lines 21 129) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrt_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven) (= (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrt_#res|)) [2020-10-25 21:51:09,969 INFO L274 CegarLoopResult]: For program point L87(lines 87 96) no Hoare annotation was computed. [2020-10-25 21:51:09,969 INFO L274 CegarLoopResult]: For program point L87-2(lines 87 96) no Hoare annotation was computed. [2020-10-25 21:51:09,969 INFO L274 CegarLoopResult]: For program point L145(lines 145 148) no Hoare annotation was computed. [2020-10-25 21:51:09,970 INFO L274 CegarLoopResult]: For program point L46(lines 46 57) no Hoare annotation was computed. [2020-10-25 21:51:09,970 INFO L274 CegarLoopResult]: For program point L46-2(lines 46 57) no Hoare annotation was computed. [2020-10-25 21:51:09,970 INFO L274 CegarLoopResult]: For program point L104(lines 104 115) no Hoare annotation was computed. [2020-10-25 21:51:09,970 INFO L274 CegarLoopResult]: For program point L38(lines 38 43) no Hoare annotation was computed. [2020-10-25 21:51:09,970 INFO L270 CegarLoopResult]: At program point L71-2(lines 71 81) the Hoare annotation is: false [2020-10-25 21:51:09,970 INFO L274 CegarLoopResult]: For program point L38-2(lines 38 43) no Hoare annotation was computed. [2020-10-25 21:51:09,970 INFO L274 CegarLoopResult]: For program point L71-3(lines 71 81) no Hoare annotation was computed. [2020-10-25 21:51:09,970 INFO L270 CegarLoopResult]: At program point L47-2(lines 47 51) the Hoare annotation is: false [2020-10-25 21:51:09,970 INFO L274 CegarLoopResult]: For program point L47-3(lines 47 51) no Hoare annotation was computed. [2020-10-25 21:51:09,971 INFO L274 CegarLoopResult]: For program point L39(lines 39 42) no Hoare annotation was computed. [2020-10-25 21:51:09,971 INFO L274 CegarLoopResult]: For program point L89(lines 89 90) no Hoare annotation was computed. [2020-10-25 21:51:09,971 INFO L274 CegarLoopResult]: For program point L122-1(lines 122 127) no Hoare annotation was computed. [2020-10-25 21:51:09,971 INFO L270 CegarLoopResult]: At program point L122-2(lines 122 127) the Hoare annotation is: false [2020-10-25 21:51:09,971 INFO L274 CegarLoopResult]: For program point L89-2(lines 89 90) no Hoare annotation was computed. [2020-10-25 21:51:09,971 INFO L274 CegarLoopResult]: For program point L122-3(lines 122 127) no Hoare annotation was computed. [2020-10-25 21:51:09,971 INFO L274 CegarLoopResult]: For program point L106(lines 106 114) no Hoare annotation was computed. [2020-10-25 21:51:09,971 INFO L274 CegarLoopResult]: For program point L73(lines 73 77) no Hoare annotation was computed. [2020-10-25 21:51:09,972 INFO L274 CegarLoopResult]: For program point L73-2(lines 73 77) no Hoare annotation was computed. [2020-10-25 21:51:09,972 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 21:51:09,972 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:51:09,972 INFO L274 CegarLoopResult]: For program point L41(lines 41 42) no Hoare annotation was computed. [2020-10-25 21:51:09,972 INFO L270 CegarLoopResult]: At program point L132(line 132) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrt_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven) (= (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrt_#res|) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2020-10-25 21:51:09,972 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 21:51:09,972 INFO L274 CegarLoopResult]: For program point L92(lines 92 93) no Hoare annotation was computed. [2020-10-25 21:51:09,973 INFO L274 CegarLoopResult]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2020-10-25 21:51:09,973 INFO L277 CegarLoopResult]: At program point L150(lines 134 151) the Hoare annotation is: true [2020-10-25 21:51:09,973 INFO L270 CegarLoopResult]: At program point L84-2(lines 84 100) the Hoare annotation is: false [2020-10-25 21:51:09,973 INFO L274 CegarLoopResult]: For program point L84-3(lines 21 129) no Hoare annotation was computed. [2020-10-25 21:51:09,973 INFO L274 CegarLoopResult]: For program point L109(lines 109 114) no Hoare annotation was computed. [2020-10-25 21:51:09,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,989 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,989 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,989 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,989 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,989 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,991 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:09,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:09,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:09,993 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,995 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,995 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,995 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:09,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:09,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:09,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,997 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:09,997 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:09,997 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:09,998 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:09,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:09,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:09,999 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,999 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,999 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,999 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:09,999 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,000 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,000 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,000 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,000 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,003 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,003 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,003 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,003 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,003 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:51:10 BoogieIcfgContainer [2020-10-25 21:51:10,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:51:10,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:51:10,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:51:10,007 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:51:10,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:50:44" (3/4) ... [2020-10-25 21:51:10,012 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 21:51:10,026 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-10-25 21:51:10,026 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-25 21:51:10,027 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:51:10,027 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:51:10,059 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result [2020-10-25 21:51:10,060 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result) && 1bv32 == \result [2020-10-25 21:51:10,104 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:51:10,104 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:51:10,106 INFO L168 Benchmark]: Toolchain (without parser) took 29733.15 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.0 MB in the beginning and 27.7 MB in the end (delta: -1.7 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:51:10,106 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 37.7 MB. Free memory is still 18.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:51:10,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.64 ms. Allocated memory is still 48.2 MB. Free memory was 25.4 MB in the beginning and 23.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:51:10,107 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.51 ms. Allocated memory is still 48.2 MB. Free memory was 23.9 MB in the beginning and 33.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:51:10,108 INFO L168 Benchmark]: Boogie Preprocessor took 56.27 ms. Allocated memory is still 48.2 MB. Free memory was 33.1 MB in the beginning and 31.2 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:51:10,108 INFO L168 Benchmark]: RCFGBuilder took 4062.60 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 31.0 MB in the beginning and 27.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:51:10,109 INFO L168 Benchmark]: TraceAbstraction took 25032.90 ms. Allocated memory is still 58.7 MB. Free memory was 27.0 MB in the beginning and 31.9 MB in the end (delta: -4.8 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:51:10,109 INFO L168 Benchmark]: Witness Printer took 97.02 ms. Allocated memory is still 58.7 MB. Free memory was 31.9 MB in the beginning and 27.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:51:10,114 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 37.7 MB. Free memory is still 18.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 402.64 ms. Allocated memory is still 48.2 MB. Free memory was 25.4 MB in the beginning and 23.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.51 ms. Allocated memory is still 48.2 MB. Free memory was 23.9 MB in the beginning and 33.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.27 ms. Allocated memory is still 48.2 MB. Free memory was 33.1 MB in the beginning and 31.2 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 4062.60 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 31.0 MB in the beginning and 27.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 25032.90 ms. Allocated memory is still 58.7 MB. Free memory was 27.0 MB in the beginning and 31.9 MB in the end (delta: -4.8 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Witness Printer took 97.02 ms. Allocated memory is still 58.7 MB. Free memory was 31.9 MB in the beginning and 27.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 - 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: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant [2020-10-25 21:51:10,123 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,125 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,126 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,126 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,126 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,126 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,126 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,126 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,126 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,126 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,127 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant [2020-10-25 21:51:10,128 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,128 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,129 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 132]: Loop Invariant [2020-10-25 21:51:10,130 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,130 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,130 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,130 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,131 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,131 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,131 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,131 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,131 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,133 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,133 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,133 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,133 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,133 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,133 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,133 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:51:10,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:51:10,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result) && 1bv32 == \result - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 127 SDtfs, 71 SDslu, 281 SDs, 0 SdLazy, 58 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 16.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 102 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 16.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 4 QuantifiedInterpolants, 2774 SizeOfPredicates, 16 NumberOfNonLiveVariables, 142 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...