./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1052d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e1a00cf 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1052d.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 ce759125498379becdf6ed11008c618e3f1de4d5 ................................................................................................................................................................................................................................................................................................. 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1052d.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 ce759125498379becdf6ed11008c618e3f1de4d5 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-0e1a00c [2020-11-29 15:39:09,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 15:39:09,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 15:39:09,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 15:39:09,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 15:39:09,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 15:39:09,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 15:39:09,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 15:39:09,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 15:39:09,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 15:39:09,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 15:39:09,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 15:39:09,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 15:39:09,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 15:39:09,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 15:39:09,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 15:39:09,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 15:39:09,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 15:39:09,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 15:39:09,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 15:39:09,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 15:39:09,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 15:39:09,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 15:39:09,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 15:39:09,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 15:39:09,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 15:39:09,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 15:39:09,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 15:39:09,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 15:39:09,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 15:39:09,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 15:39:09,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 15:39:09,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 15:39:09,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 15:39:09,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 15:39:09,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 15:39:09,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 15:39:09,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 15:39:09,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 15:39:09,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 15:39:09,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 15:39:09,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 15:39:09,619 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 15:39:09,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 15:39:09,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 15:39:09,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 15:39:09,622 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 15:39:09,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 15:39:09,623 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 15:39:09,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 15:39:09,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 15:39:09,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 15:39:09,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 15:39:09,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 15:39:09,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 15:39:09,624 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 15:39:09,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 15:39:09,625 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 15:39:09,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 15:39:09,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 15:39:09,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 15:39:09,626 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 15:39:09,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 15:39:09,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 15:39:09,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 15:39:09,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 15:39:09,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 15:39:09,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 15:39:09,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 15:39:09,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 15:39:09,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 15:39:09,629 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce759125498379becdf6ed11008c618e3f1de4d5 [2020-11-29 15:39:10,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 15:39:10,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 15:39:10,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 15:39:10,130 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 15:39:10,131 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 15:39:10,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1052d.c [2020-11-29 15:39:10,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86bb22a45/2feae24cfd05407eab6f396c488486fd/FLAG9b840af15 [2020-11-29 15:39:10,755 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 15:39:10,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1052d.c [2020-11-29 15:39:10,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86bb22a45/2feae24cfd05407eab6f396c488486fd/FLAG9b840af15 [2020-11-29 15:39:11,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86bb22a45/2feae24cfd05407eab6f396c488486fd [2020-11-29 15:39:11,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 15:39:11,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 15:39:11,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 15:39:11,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 15:39:11,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 15:39:11,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:39:11" (1/1) ... [2020-11-29 15:39:11,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@372d37ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:11, skipping insertion in model container [2020-11-29 15:39:11,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:39:11" (1/1) ... [2020-11-29 15:39:11,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 15:39:11,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 15:39:11,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:39:11,399 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 15:39:11,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:39:11,451 INFO L208 MainTranslator]: Completed translation [2020-11-29 15:39:11,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:11 WrapperNode [2020-11-29 15:39:11,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 15:39:11,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 15:39:11,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 15:39:11,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 15:39:11,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:11" (1/1) ... [2020-11-29 15:39:11,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:11" (1/1) ... [2020-11-29 15:39:11,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 15:39:11,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 15:39:11,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 15:39:11,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 15:39:11,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:11" (1/1) ... [2020-11-29 15:39:11,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:11" (1/1) ... [2020-11-29 15:39:11,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:11" (1/1) ... [2020-11-29 15:39:11,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:11" (1/1) ... [2020-11-29 15:39:11,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:11" (1/1) ... [2020-11-29 15:39:11,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:11" (1/1) ... [2020-11-29 15:39:11,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:11" (1/1) ... [2020-11-29 15:39:11,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 15:39:11,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 15:39:11,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 15:39:11,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 15:39:11,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:11" (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 [2020-11-29 15:39:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 15:39:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 15:39:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 15:39:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 15:39:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 15:39:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 15:39:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 15:39:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 15:39:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 15:39:12,201 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 15:39:12,202 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 15:39:12,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:39:12 BoogieIcfgContainer [2020-11-29 15:39:12,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 15:39:12,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 15:39:12,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 15:39:12,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 15:39:12,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:39:11" (1/3) ... [2020-11-29 15:39:12,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bad50e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:39:12, skipping insertion in model container [2020-11-29 15:39:12,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:11" (2/3) ... [2020-11-29 15:39:12,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bad50e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:39:12, skipping insertion in model container [2020-11-29 15:39:12,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:39:12" (3/3) ... [2020-11-29 15:39:12,214 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d.c [2020-11-29 15:39:12,230 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 15:39:12,235 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 15:39:12,248 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 15:39:12,306 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 15:39:12,306 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 15:39:12,307 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 15:39:12,307 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 15:39:12,308 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 15:39:12,308 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 15:39:12,309 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 15:39:12,309 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 15:39:12,329 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-29 15:39:12,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 15:39:12,336 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:39:12,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:39:12,338 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:39:12,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:39:12,347 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-11-29 15:39:12,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 15:39:12,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758965449] [2020-11-29 15:39:12,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 15:39:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:39:12,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:39:12,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758965449] [2020-11-29 15:39:12,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:39:12,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 15:39:12,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52300803] [2020-11-29 15:39:12,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 15:39:12,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 15:39:12,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 15:39:12,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:39:12,596 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-29 15:39:12,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:39:12,622 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-11-29 15:39:12,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 15:39:12,624 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 15:39:12,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:39:12,645 INFO L225 Difference]: With dead ends: 59 [2020-11-29 15:39:12,649 INFO L226 Difference]: Without dead ends: 27 [2020-11-29 15:39:12,654 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 [2020-11-29 15:39:12,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-29 15:39:12,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-29 15:39:12,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 15:39:12,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-29 15:39:12,714 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-11-29 15:39:12,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:39:12,715 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-29 15:39:12,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 15:39:12,715 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-29 15:39:12,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 15:39:12,717 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:39:12,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:39:12,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 15:39:12,718 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:39:12,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:39:12,720 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-11-29 15:39:12,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 15:39:12,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592109002] [2020-11-29 15:39:12,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 15:39:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 15:39:12,857 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 15:39:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 15:39:12,895 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 15:39:12,922 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 15:39:12,923 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 15:39:12,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 15:39:12,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:39:12 BoogieIcfgContainer [2020-11-29 15:39:12,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 15:39:12,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 15:39:12,961 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 15:39:12,961 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 15:39:12,962 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:39:12" (3/4) ... [2020-11-29 15:39:12,966 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 15:39:12,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 15:39:12,969 INFO L168 Benchmark]: Toolchain (without parser) took 1846.18 ms. Allocated memory was 35.7 MB in the beginning and 56.6 MB in the end (delta: 21.0 MB). Free memory was 15.6 MB in the beginning and 31.0 MB in the end (delta: -15.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-11-29 15:39:12,970 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 35.7 MB. Free memory was 22.4 MB in the beginning and 22.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:39:12,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.95 ms. Allocated memory was 35.7 MB in the beginning and 46.1 MB in the end (delta: 10.5 MB). Free memory was 15.0 MB in the beginning and 22.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-11-29 15:39:12,972 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.69 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 31.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-11-29 15:39:12,973 INFO L168 Benchmark]: Boogie Preprocessor took 33.83 ms. Allocated memory is still 46.1 MB. Free memory was 31.0 MB in the beginning and 29.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:39:12,974 INFO L168 Benchmark]: RCFGBuilder took 660.71 ms. Allocated memory is still 46.1 MB. Free memory was 29.6 MB in the beginning and 20.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-11-29 15:39:12,975 INFO L168 Benchmark]: TraceAbstraction took 754.12 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 20.2 MB in the beginning and 31.5 MB in the end (delta: -11.3 MB). Peak memory consumption was 958.5 kB. Max. memory is 16.1 GB. [2020-11-29 15:39:12,976 INFO L168 Benchmark]: Witness Printer took 5.80 ms. Allocated memory is still 56.6 MB. Free memory was 31.2 MB in the beginning and 31.0 MB in the end (delta: 277.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:39:12,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 35.7 MB. Free memory was 22.4 MB in the beginning and 22.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 321.95 ms. Allocated memory was 35.7 MB in the beginning and 46.1 MB in the end (delta: 10.5 MB). Free memory was 15.0 MB in the beginning and 22.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.69 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 31.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.83 ms. Allocated memory is still 46.1 MB. Free memory was 31.0 MB in the beginning and 29.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 660.71 ms. Allocated memory is still 46.1 MB. Free memory was 29.6 MB in the beginning and 20.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 754.12 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 20.2 MB in the beginning and 31.5 MB in the end (delta: -11.3 MB). Peak memory consumption was 958.5 kB. Max. memory is 16.1 GB. * Witness Printer took 5.80 ms. Allocated memory is still 56.6 MB. Free memory was 31.2 MB in the beginning and 31.0 MB in the end (delta: 277.3 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 someBinaryFLOATComparisonOperation at line 81, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L77] float x = 0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [huge_floor=1000000000000000000000000000000] [L78] float res = floor_float(x); [L81] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_floor=1000000000000000000000000000000] [L81] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_1052d.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 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=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 0.2.0-0e1a00c [2020-11-29 15:39:15,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 15:39:15,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 15:39:15,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 15:39:15,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 15:39:15,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 15:39:15,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 15:39:15,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 15:39:15,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 15:39:15,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 15:39:15,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 15:39:15,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 15:39:15,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 15:39:15,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 15:39:15,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 15:39:15,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 15:39:15,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 15:39:15,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 15:39:15,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 15:39:15,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 15:39:15,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 15:39:15,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 15:39:15,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 15:39:15,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 15:39:15,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 15:39:15,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 15:39:15,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 15:39:15,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 15:39:15,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 15:39:15,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 15:39:15,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 15:39:15,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 15:39:15,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 15:39:15,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 15:39:15,781 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 15:39:15,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 15:39:15,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 15:39:15,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 15:39:15,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 15:39:15,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 15:39:15,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 15:39:15,791 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 15:39:15,859 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 15:39:15,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 15:39:15,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 15:39:15,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 15:39:15,862 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 15:39:15,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 15:39:15,862 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 15:39:15,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 15:39:15,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 15:39:15,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 15:39:15,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 15:39:15,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 15:39:15,863 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 15:39:15,864 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 15:39:15,864 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 15:39:15,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 15:39:15,864 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 15:39:15,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 15:39:15,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 15:39:15,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 15:39:15,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 15:39:15,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 15:39:15,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 15:39:15,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 15:39:15,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 15:39:15,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 15:39:15,866 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 15:39:15,866 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 15:39:15,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 15:39:15,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 15:39:15,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 15:39:15,867 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce759125498379becdf6ed11008c618e3f1de4d5 [2020-11-29 15:39:16,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 15:39:16,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 15:39:16,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 15:39:16,308 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 15:39:16,309 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 15:39:16,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1052d.c [2020-11-29 15:39:16,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/079982821/6fe03468534848c7b5df55b74e23c268/FLAG08a65c247 [2020-11-29 15:39:17,089 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 15:39:17,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1052d.c [2020-11-29 15:39:17,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/079982821/6fe03468534848c7b5df55b74e23c268/FLAG08a65c247 [2020-11-29 15:39:17,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/079982821/6fe03468534848c7b5df55b74e23c268 [2020-11-29 15:39:17,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 15:39:17,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 15:39:17,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 15:39:17,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 15:39:17,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 15:39:17,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:39:17" (1/1) ... [2020-11-29 15:39:17,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd5e790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:17, skipping insertion in model container [2020-11-29 15:39:17,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:39:17" (1/1) ... [2020-11-29 15:39:17,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 15:39:17,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 15:39:17,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:39:17,507 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 15:39:17,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:39:17,563 INFO L208 MainTranslator]: Completed translation [2020-11-29 15:39:17,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:17 WrapperNode [2020-11-29 15:39:17,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 15:39:17,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 15:39:17,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 15:39:17,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 15:39:17,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:17" (1/1) ... [2020-11-29 15:39:17,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:17" (1/1) ... [2020-11-29 15:39:17,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 15:39:17,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 15:39:17,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 15:39:17,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 15:39:17,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:17" (1/1) ... [2020-11-29 15:39:17,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:17" (1/1) ... [2020-11-29 15:39:17,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:17" (1/1) ... [2020-11-29 15:39:17,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:17" (1/1) ... [2020-11-29 15:39:17,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:17" (1/1) ... [2020-11-29 15:39:17,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:17" (1/1) ... [2020-11-29 15:39:17,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:17" (1/1) ... [2020-11-29 15:39:17,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 15:39:17,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 15:39:17,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 15:39:17,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 15:39:17,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:17" (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 [2020-11-29 15:39:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 15:39:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 15:39:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 15:39:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 15:39:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 15:39:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 15:39:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 15:39:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 15:39:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 15:39:18,838 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 15:39:18,839 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 15:39:18,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:39:18 BoogieIcfgContainer [2020-11-29 15:39:18,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 15:39:18,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 15:39:18,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 15:39:18,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 15:39:18,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:39:17" (1/3) ... [2020-11-29 15:39:18,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c1132a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:39:18, skipping insertion in model container [2020-11-29 15:39:18,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:39:17" (2/3) ... [2020-11-29 15:39:18,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c1132a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:39:18, skipping insertion in model container [2020-11-29 15:39:18,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:39:18" (3/3) ... [2020-11-29 15:39:18,853 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d.c [2020-11-29 15:39:18,868 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 15:39:18,873 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 15:39:18,887 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 15:39:18,917 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 15:39:18,917 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 15:39:18,918 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 15:39:18,918 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 15:39:18,918 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 15:39:18,918 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 15:39:18,918 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 15:39:18,919 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 15:39:18,932 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-29 15:39:18,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 15:39:18,939 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:39:18,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:39:18,940 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:39:18,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:39:18,948 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-11-29 15:39:18,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:39:18,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265732912] [2020-11-29 15:39:18,963 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 [2020-11-29 15:39:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:39:19,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 15:39:19,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:39:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:39:19,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:39:19,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:39:19,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265732912] [2020-11-29 15:39:19,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:39:19,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 15:39:19,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42511206] [2020-11-29 15:39:19,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 15:39:19,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:39:19,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 15:39:19,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:39:19,174 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-29 15:39:19,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:39:19,195 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-11-29 15:39:19,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 15:39:19,197 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 15:39:19,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:39:19,208 INFO L225 Difference]: With dead ends: 59 [2020-11-29 15:39:19,208 INFO L226 Difference]: Without dead ends: 27 [2020-11-29 15:39:19,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:39:19,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-29 15:39:19,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-29 15:39:19,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 15:39:19,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-29 15:39:19,252 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-11-29 15:39:19,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:39:19,253 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-29 15:39:19,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 15:39:19,253 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-29 15:39:19,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 15:39:19,254 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:39:19,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:39:19,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 15:39:19,471 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:39:19,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:39:19,473 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-11-29 15:39:19,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:39:19,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983323334] [2020-11-29 15:39:19,474 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 [2020-11-29 15:39:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:39:19,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 15:39:19,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:39:19,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:39:19,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:39:19,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:39:19,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983323334] [2020-11-29 15:39:19,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:39:19,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 15:39:19,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755727908] [2020-11-29 15:39:19,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 15:39:19,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:39:19,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 15:39:19,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 15:39:19,841 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2020-11-29 15:39:20,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:39:20,166 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-11-29 15:39:20,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 15:39:20,167 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-29 15:39:20,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:39:20,168 INFO L225 Difference]: With dead ends: 39 [2020-11-29 15:39:20,168 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 15:39:20,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 15:39:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 15:39:20,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-29 15:39:20,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-29 15:39:20,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-29 15:39:20,177 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2020-11-29 15:39:20,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:39:20,178 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-29 15:39:20,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 15:39:20,179 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-29 15:39:20,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 15:39:20,182 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:39:20,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:39:20,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 15:39:20,399 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:39:20,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:39:20,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2020-11-29 15:39:20,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:39:20,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754719062] [2020-11-29 15:39:20,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 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 [2020-11-29 15:39:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:39:20,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 15:39:20,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:39:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:39:20,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:39:21,280 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-29 15:39:21,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:39:21,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754719062] [2020-11-29 15:39:21,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:39:21,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-29 15:39:21,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266012400] [2020-11-29 15:39:21,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 15:39:21,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:39:21,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 15:39:21,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 15:39:21,558 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2020-11-29 15:39:21,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:39:21,880 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-29 15:39:21,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 15:39:21,885 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-29 15:39:21,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:39:21,886 INFO L225 Difference]: With dead ends: 33 [2020-11-29 15:39:21,886 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 15:39:21,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 15:39:21,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 15:39:21,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-29 15:39:21,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-29 15:39:21,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-11-29 15:39:21,892 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2020-11-29 15:39:21,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:39:21,893 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-11-29 15:39:21,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 15:39:21,893 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-11-29 15:39:21,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 15:39:21,894 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:39:21,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:39:22,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 15:39:22,108 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:39:22,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:39:22,110 INFO L82 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2020-11-29 15:39:22,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:39:22,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963599320] [2020-11-29 15:39:22,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 15:39:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:39:22,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 15:39:22,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:39:22,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:39:22,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:39:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:39:22,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963599320] [2020-11-29 15:39:22,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:39:22,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-29 15:39:22,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994062283] [2020-11-29 15:39:22,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 15:39:22,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:39:22,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 15:39:22,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-29 15:39:22,375 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 9 states. [2020-11-29 15:39:22,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:39:22,648 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-11-29 15:39:22,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 15:39:22,649 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-11-29 15:39:22,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:39:22,650 INFO L225 Difference]: With dead ends: 24 [2020-11-29 15:39:22,650 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 15:39:22,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-11-29 15:39:22,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 15:39:22,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-29 15:39:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-29 15:39:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-11-29 15:39:22,656 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2020-11-29 15:39:22,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:39:22,656 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-11-29 15:39:22,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 15:39:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-11-29 15:39:22,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 15:39:22,666 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:39:22,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:39:22,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 15:39:22,868 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:39:22,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:39:22,869 INFO L82 PathProgramCache]: Analyzing trace with hash -733783834, now seen corresponding path program 1 times [2020-11-29 15:39:22,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:39:22,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248661248] [2020-11-29 15:39:22,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-29 15:39:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:39:22,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 15:39:23,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:39:23,117 INFO L626 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 15:39:23,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:39:23,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:39:23,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:39:23,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248661248] [2020-11-29 15:39:23,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:39:23,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-11-29 15:39:23,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023697500] [2020-11-29 15:39:23,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-29 15:39:23,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:39:23,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-29 15:39:23,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-11-29 15:39:23,521 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 16 states. [2020-11-29 15:39:24,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:39:24,029 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-11-29 15:39:24,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 15:39:24,030 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2020-11-29 15:39:24,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:39:24,031 INFO L225 Difference]: With dead ends: 21 [2020-11-29 15:39:24,031 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 15:39:24,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-11-29 15:39:24,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 15:39:24,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 15:39:24,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 15:39:24,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 15:39:24,033 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-29 15:39:24,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:39:24,033 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 15:39:24,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-29 15:39:24,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 15:39:24,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 15:39:24,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 15:39:24,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 15:39:24,490 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-11-29 15:39:24,735 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-11-29 15:39:24,740 INFO L262 CegarLoopResult]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-11-29 15:39:24,740 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-29 15:39:24,743 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 15:39:24,744 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 15:39:24,744 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 15:39:24,744 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 15:39:24,744 INFO L262 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-11-29 15:39:24,744 INFO L262 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2020-11-29 15:39:24,745 INFO L258 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: (let ((.cse0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (= ULTIMATE.start_floor_float_~i0~0 (_ bv0 32)) (= .cse0 ULTIMATE.start___signbit_float_~x) (= currentRoundingMode roundNearestTiesToEven) (= .cse0 ULTIMATE.start_main_~res~0) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (_ +zero 8 24)) (= (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (bvadd ULTIMATE.start_floor_float_~j0~0 (_ bv127 32))))) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) |ULTIMATE.start_main_#t~short15| (= .cse0 ULTIMATE.start_floor_float_~x))) [2020-11-29 15:39:24,745 INFO L262 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2020-11-29 15:39:24,745 INFO L265 CegarLoopResult]: At program point L86(lines 70 87) the Hoare annotation is: true [2020-11-29 15:39:24,745 INFO L262 CegarLoopResult]: For program point L45(lines 45 48) no Hoare annotation was computed. [2020-11-29 15:39:24,746 INFO L262 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-11-29 15:39:24,746 INFO L262 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-11-29 15:39:24,748 INFO L258 CegarLoopResult]: At program point L55(lines 15 56) the Hoare annotation is: (let ((.cse0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (= ULTIMATE.start_floor_float_~i0~0 (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (_ +zero 8 24)) (= (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (bvadd ULTIMATE.start_floor_float_~j0~0 (_ bv127 32))))) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= .cse0 ULTIMATE.start_floor_float_~x))) [2020-11-29 15:39:24,749 INFO L262 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-11-29 15:39:24,749 INFO L262 CegarLoopResult]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2020-11-29 15:39:24,749 INFO L262 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-11-29 15:39:24,749 INFO L262 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-11-29 15:39:24,749 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 15:39:24,750 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 15:39:24,750 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 15:39:24,750 INFO L262 CegarLoopResult]: For program point L25(lines 25 49) no Hoare annotation was computed. [2020-11-29 15:39:24,750 INFO L262 CegarLoopResult]: For program point L50(lines 50 54) no Hoare annotation was computed. [2020-11-29 15:39:24,750 INFO L262 CegarLoopResult]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2020-11-29 15:39:24,751 INFO L262 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-11-29 15:39:24,751 INFO L258 CegarLoopResult]: At program point L67(lines 58 68) the Hoare annotation is: (let ((.cse0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (= .cse0 ULTIMATE.start___signbit_float_~x) (= ULTIMATE.start_floor_float_~i0~0 (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= .cse0 ULTIMATE.start_main_~res~0) (exists ((ULTIMATE.start_floor_float_~i0~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_floor_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_floor_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_floor_float_~i0~0)) (_ +zero 8 24)) (= (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_floor_float_~i0~0) (_ bv23 32)) (bvadd ULTIMATE.start_floor_float_~j0~0 (_ bv127 32))))) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short15| (= .cse0 ULTIMATE.start_floor_float_~x))) [2020-11-29 15:39:24,751 INFO L262 CegarLoopResult]: For program point L26(lines 26 43) no Hoare annotation was computed. [2020-11-29 15:39:24,752 INFO L262 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-11-29 15:39:24,752 INFO L258 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_floor_float_~x)) [2020-11-29 15:39:24,752 INFO L262 CegarLoopResult]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2020-11-29 15:39:24,762 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,766 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,766 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,766 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,769 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,772 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,773 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,773 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,773 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,773 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,774 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,774 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,775 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,776 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,776 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,778 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,779 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,779 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,779 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,779 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,781 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,783 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,783 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,784 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,784 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,784 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,786 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,786 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,786 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,787 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,787 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,787 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:39:24 BoogieIcfgContainer [2020-11-29 15:39:24,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 15:39:24,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 15:39:24,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 15:39:24,791 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 15:39:24,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:39:18" (3/4) ... [2020-11-29 15:39:24,796 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 15:39:24,809 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-29 15:39:24,811 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 15:39:24,811 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 15:39:24,812 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 15:39:24,840 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && i0 == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE() && ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32))) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x [2020-11-29 15:39:24,841 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && i0 == 0bv32) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == res) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE() && ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32))) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x [2020-11-29 15:39:24,842 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x) && i0 == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == res) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE() && ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32))) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x [2020-11-29 15:39:24,873 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-29 15:39:24,877 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 15:39:24,878 INFO L168 Benchmark]: Toolchain (without parser) took 7747.94 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 27.3 MB in the beginning and 25.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. [2020-11-29 15:39:24,879 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 50.3 MB. Free memory was 33.3 MB in the beginning and 33.2 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:39:24,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.18 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 28.9 MB in the end (delta: -2.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-11-29 15:39:24,882 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.78 ms. Allocated memory is still 50.3 MB. Free memory was 28.9 MB in the beginning and 27.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:39:24,883 INFO L168 Benchmark]: Boogie Preprocessor took 41.50 ms. Allocated memory is still 50.3 MB. Free memory was 27.2 MB in the beginning and 25.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:39:24,884 INFO L168 Benchmark]: RCFGBuilder took 1175.11 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.5 MB in the beginning and 43.9 MB in the end (delta: -18.4 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2020-11-29 15:39:24,885 INFO L168 Benchmark]: TraceAbstraction took 5946.60 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 43.4 MB in the beginning and 28.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2020-11-29 15:39:24,887 INFO L168 Benchmark]: Witness Printer took 86.07 ms. Allocated memory is still 73.4 MB. Free memory was 28.8 MB in the beginning and 25.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 15:39:24,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 50.3 MB. Free memory was 33.3 MB in the beginning and 33.2 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 424.18 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 28.9 MB in the end (delta: -2.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.78 ms. Allocated memory is still 50.3 MB. Free memory was 28.9 MB in the beginning and 27.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.50 ms. Allocated memory is still 50.3 MB. Free memory was 27.2 MB in the beginning and 25.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1175.11 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.5 MB in the beginning and 43.9 MB in the end (delta: -18.4 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5946.60 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 43.4 MB in the beginning and 28.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. * Witness Printer took 86.07 ms. Allocated memory is still 73.4 MB. Free memory was 28.8 MB in the beginning and 25.8 MB in the end (delta: 3.0 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] * 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 - 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: 18]: Loop Invariant [2020-11-29 15:39:24,917 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,918 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,918 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,918 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,919 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,919 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,923 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,923 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x - InvariantResult [Line: 61]: Loop Invariant [2020-11-29 15:39:24,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,924 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,925 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,925 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,926 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,931 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,931 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,932 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,932 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,933 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,933 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,933 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,934 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,934 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,934 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,936 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && i0 == 0bv32) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == res) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE() && ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32))) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant [2020-11-29 15:39:24,938 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,942 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,943 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,944 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,944 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,944 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,945 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,945 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,945 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,945 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,946 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,946 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && i0 == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE() && ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32))) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x - InvariantResult [Line: 58]: Loop Invariant [2020-11-29 15:39:24,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,947 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,947 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,947 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,947 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,948 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,948 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,948 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,949 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:39:24,949 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,949 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_floor_float_~i0~0,QUANTIFIED] [2020-11-29 15:39:24,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:39:24,952 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x) && i0 == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == res) && (\exists ULTIMATE.start_floor_float_~i0~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_floor_float_~i0~0[31:31], ULTIMATE.start_floor_float_~i0~0[30:23], ULTIMATE.start_floor_float_~i0~0[22:0]) == ~Pluszero~LONGDOUBLE() && ~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_floor_float_~i0~0), 23bv32) == ~bvadd64(j0, 127bv32))) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 197 SDslu, 80 SDs, 0 SdLazy, 113 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 197 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 134 ConstructedInterpolants, 8 QuantifiedInterpolants, 8156 SizeOfPredicates, 26 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...