./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0920a.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 8aa1a92a1779a20f74a516c833d3b843eed96e54 ...................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0920a.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 8aa1a92a1779a20f74a516c833d3b843eed96e54 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 21:58:55,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:58:55,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:58:55,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:58:55,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:58:55,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:58:55,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:58:55,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:58:55,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:58:55,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:58:55,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:58:55,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:58:55,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:58:55,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:58:55,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:58:55,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:58:55,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:58:55,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:58:55,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:58:55,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:58:55,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:58:55,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:58:55,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:58:55,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:58:55,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:58:55,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:58:55,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:58:55,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:58:55,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:58:55,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:58:55,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:58:55,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:58:55,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:58:55,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:58:55,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:58:55,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:58:55,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:58:55,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:58:55,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:58:55,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:58:55,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:58:55,558 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:58:55,621 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:58:55,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:58:55,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:58:55,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:58:55,627 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:58:55,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:58:55,627 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:58:55,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:58:55,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:58:55,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:58:55,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:58:55,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:58:55,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:58:55,630 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:58:55,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:58:55,631 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:58:55,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:58:55,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:58:55,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:58:55,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:58:55,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:58:55,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:58:55,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:58:55,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:58:55,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:58:55,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:58:55,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:58:55,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:58:55,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:58:55,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8aa1a92a1779a20f74a516c833d3b843eed96e54 [2020-10-25 21:58:56,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:58:56,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:58:56,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:58:56,098 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:58:56,100 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:58:56,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2020-10-25 21:58:56,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8d69ee2/a8b937c302ec4214a69c435b8ab93125/FLAG887adf640 [2020-10-25 21:58:56,924 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:58:56,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2020-10-25 21:58:56,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8d69ee2/a8b937c302ec4214a69c435b8ab93125/FLAG887adf640 [2020-10-25 21:58:57,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8d69ee2/a8b937c302ec4214a69c435b8ab93125 [2020-10-25 21:58:57,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:58:57,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:58:57,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:58:57,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:58:57,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:58:57,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:58:57" (1/1) ... [2020-10-25 21:58:57,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5527af2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:57, skipping insertion in model container [2020-10-25 21:58:57,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:58:57" (1/1) ... [2020-10-25 21:58:57,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:58:57,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:58:57,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:58:57,597 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:58:57,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:58:57,685 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:58:57,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:57 WrapperNode [2020-10-25 21:58:57,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:58:57,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:58:57,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:58:57,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:58:57,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:57" (1/1) ... [2020-10-25 21:58:57,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:57" (1/1) ... [2020-10-25 21:58:57,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:58:57,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:58:57,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:58:57,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:58:57,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:57" (1/1) ... [2020-10-25 21:58:57,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:57" (1/1) ... [2020-10-25 21:58:57,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:57" (1/1) ... [2020-10-25 21:58:57,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:57" (1/1) ... [2020-10-25 21:58:57,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:57" (1/1) ... [2020-10-25 21:58:57,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:57" (1/1) ... [2020-10-25 21:58:57,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:57" (1/1) ... [2020-10-25 21:58:57,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:58:57,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:58:57,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:58:57,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:58:57,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:58:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:58:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:58:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-25 21:58:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-25 21:58:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-25 21:58:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:58:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:58:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 21:58:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:58:58,568 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:58:58,569 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-25 21:58:58,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:58:58 BoogieIcfgContainer [2020-10-25 21:58:58,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:58:58,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:58:58,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:58:58,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:58:58,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:58:57" (1/3) ... [2020-10-25 21:58:58,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5adc6bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:58:58, skipping insertion in model container [2020-10-25 21:58:58,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:57" (2/3) ... [2020-10-25 21:58:58,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5adc6bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:58:58, skipping insertion in model container [2020-10-25 21:58:58,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:58:58" (3/3) ... [2020-10-25 21:58:58,584 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2020-10-25 21:58:58,598 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:58:58,605 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:58:58,626 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:58:58,676 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:58:58,677 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:58:58,677 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:58:58,677 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:58:58,678 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:58:58,678 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:58:58,678 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:58:58,678 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:58:58,698 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-25 21:58:58,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 21:58:58,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:58:58,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:58:58,708 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:58:58,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:58:58,716 INFO L82 PathProgramCache]: Analyzing trace with hash 627170052, now seen corresponding path program 1 times [2020-10-25 21:58:58,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:58:58,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969109793] [2020-10-25 21:58:58,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:58:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:58:58,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:58:58,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969109793] [2020-10-25 21:58:58,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:58:58,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 21:58:58,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804232222] [2020-10-25 21:58:58,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:58:58,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 21:58:58,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:58:58,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:58:58,994 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-10-25 21:58:59,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:58:59,017 INFO L93 Difference]: Finished difference Result 72 states and 113 transitions. [2020-10-25 21:58:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:58:59,018 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-25 21:58:59,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:58:59,029 INFO L225 Difference]: With dead ends: 72 [2020-10-25 21:58:59,029 INFO L226 Difference]: Without dead ends: 33 [2020-10-25 21:58:59,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:58:59,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-25 21:58:59,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-25 21:58:59,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-25 21:58:59,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2020-10-25 21:58:59,075 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11 [2020-10-25 21:58:59,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:58:59,076 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2020-10-25 21:58:59,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:58:59,076 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2020-10-25 21:58:59,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-25 21:58:59,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:58:59,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:58:59,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:58:59,078 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:58:59,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:58:59,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1650641455, now seen corresponding path program 1 times [2020-10-25 21:58:59,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:58:59,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043805498] [2020-10-25 21:58:59,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:58:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:58:59,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:58:59,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043805498] [2020-10-25 21:58:59,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:58:59,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 21:58:59,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7561143] [2020-10-25 21:58:59,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 21:58:59,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 21:58:59,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 21:58:59,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 21:58:59,148 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 3 states. [2020-10-25 21:58:59,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:58:59,171 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2020-10-25 21:58:59,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 21:58:59,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-25 21:58:59,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:58:59,173 INFO L225 Difference]: With dead ends: 59 [2020-10-25 21:58:59,173 INFO L226 Difference]: Without dead ends: 33 [2020-10-25 21:58:59,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 21:58:59,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-25 21:58:59,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-25 21:58:59,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-25 21:58:59,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2020-10-25 21:58:59,180 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12 [2020-10-25 21:58:59,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:58:59,181 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2020-10-25 21:58:59,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 21:58:59,181 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2020-10-25 21:58:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-25 21:58:59,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:58:59,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:58:59,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 21:58:59,182 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:58:59,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:58:59,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1227406364, now seen corresponding path program 1 times [2020-10-25 21:58:59,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:58:59,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840398960] [2020-10-25 21:58:59,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:58:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:58:59,254 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:58:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:58:59,323 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:58:59,360 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:58:59,361 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:58:59,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 21:58:59,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:58:59 BoogieIcfgContainer [2020-10-25 21:58:59,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:58:59,414 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:58:59,414 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:58:59,419 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:58:59,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:58:58" (3/4) ... [2020-10-25 21:58:59,424 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:58:59,425 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:58:59,429 INFO L168 Benchmark]: Toolchain (without parser) took 2177.23 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.1 MB in the beginning and 26.1 MB in the end (delta: -7.0 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:59,432 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 41.9 MB. Free memory was 26.6 MB in the beginning and 26.5 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:58:59,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.39 ms. Allocated memory is still 41.9 MB. Free memory was 18.5 MB in the beginning and 17.5 MB in the end (delta: 952.6 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:59,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.93 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.4 MB in the beginning and 33.6 MB in the end (delta: -16.2 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:59,439 INFO L168 Benchmark]: Boogie Preprocessor took 79.49 ms. Allocated memory is still 50.3 MB. Free memory was 33.6 MB in the beginning and 31.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:59,441 INFO L168 Benchmark]: RCFGBuilder took 731.35 ms. Allocated memory is still 50.3 MB. Free memory was 31.9 MB in the beginning and 33.2 MB in the end (delta: -1.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:59,443 INFO L168 Benchmark]: TraceAbstraction took 838.03 ms. Allocated memory is still 50.3 MB. Free memory was 32.8 MB in the beginning and 26.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:59,444 INFO L168 Benchmark]: Witness Printer took 11.18 ms. Allocated memory is still 50.3 MB. Free memory was 26.3 MB in the beginning and 26.1 MB in the end (delta: 272.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:58:59,451 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 41.9 MB. Free memory was 26.6 MB in the beginning and 26.5 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 429.39 ms. Allocated memory is still 41.9 MB. Free memory was 18.5 MB in the beginning and 17.5 MB in the end (delta: 952.6 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.93 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.4 MB in the beginning and 33.6 MB in the end (delta: -16.2 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.49 ms. Allocated memory is still 50.3 MB. Free memory was 33.6 MB in the beginning and 31.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 731.35 ms. Allocated memory is still 50.3 MB. Free memory was 31.9 MB in the beginning and 33.2 MB in the end (delta: -1.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 838.03 ms. Allocated memory is still 50.3 MB. Free memory was 32.8 MB in the beginning and 26.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Witness Printer took 11.18 ms. Allocated memory is still 50.3 MB. Free memory was 26.3 MB in the beginning and 26.1 MB in the end (delta: 272.8 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 113, overapproximation of bitwiseAnd at line 45, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L134] float x = __VERIFIER_nondet_float(); [L136] EXPR x < 0 && isfinite_float(x) [L117] __int32_t ix; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L119] ieee_float_shape_type gf_u; [L120] gf_u.value = (x) [L121] EXPR gf_u.word [L121] (ix) = gf_u.word [L123] ix &= 0x7fffffff [L124] return (((ix) < 0x7f800000L)); VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L136] EXPR x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L136] COND TRUE (x < 0 && isfinite_float(x)) [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (ix) = gf_u.word [L44] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L45] COND TRUE ((ix & 0x7fffffff) == 0) [L46] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L138] float res = __ieee754_logf(x); [L113] return x != x; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L141] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0920a.c", 3, "reach_error") VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 0 SDslu, 39 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-5485861 [2020-10-25 21:59:02,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:59:02,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:59:02,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:59:02,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:59:02,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:59:02,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:59:02,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:59:02,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:59:02,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:59:02,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:59:02,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:59:02,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:59:02,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:59:02,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:59:02,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:59:02,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:59:02,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:59:02,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:59:02,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:59:02,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:59:02,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:59:02,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:59:02,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:59:02,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:59:02,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:59:02,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:59:02,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:59:02,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:59:02,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:59:02,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:59:02,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:59:02,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:59:02,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:59:02,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:59:02,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:59:02,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:59:02,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:59:02,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:59:02,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:59:02,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:59:02,198 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:59:02,254 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:59:02,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:59:02,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:59:02,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:59:02,258 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:59:02,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:59:02,258 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:59:02,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:59:02,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:59:02,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:59:02,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:59:02,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:59:02,261 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:59:02,261 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:59:02,261 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:59:02,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:59:02,262 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:59:02,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:59:02,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:59:02,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:59:02,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:59:02,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:59:02,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:59:02,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:59:02,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:59:02,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:59:02,264 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:59:02,264 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:59:02,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:59:02,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:59:02,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:59:02,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8aa1a92a1779a20f74a516c833d3b843eed96e54 [2020-10-25 21:59:02,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:59:02,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:59:02,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:59:02,744 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:59:02,745 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:59:02,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2020-10-25 21:59:02,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/935ec1482/921cc8c858cd457c83ccd1a215cb388a/FLAG87790822b [2020-10-25 21:59:03,475 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:59:03,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2020-10-25 21:59:03,495 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/935ec1482/921cc8c858cd457c83ccd1a215cb388a/FLAG87790822b [2020-10-25 21:59:03,857 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/935ec1482/921cc8c858cd457c83ccd1a215cb388a [2020-10-25 21:59:03,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:59:03,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:59:03,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:59:03,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:59:03,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:59:03,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:59:03" (1/1) ... [2020-10-25 21:59:03,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b90c8f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:03, skipping insertion in model container [2020-10-25 21:59:03,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:59:03" (1/1) ... [2020-10-25 21:59:03,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:59:03,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:59:04,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:59:04,222 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:59:04,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:59:04,345 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:59:04,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:04 WrapperNode [2020-10-25 21:59:04,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:59:04,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:59:04,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:59:04,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:59:04,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:04" (1/1) ... [2020-10-25 21:59:04,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:04" (1/1) ... [2020-10-25 21:59:04,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:59:04,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:59:04,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:59:04,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:59:04,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:04" (1/1) ... [2020-10-25 21:59:04,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:04" (1/1) ... [2020-10-25 21:59:04,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:04" (1/1) ... [2020-10-25 21:59:04,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:04" (1/1) ... [2020-10-25 21:59:04,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:04" (1/1) ... [2020-10-25 21:59:04,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:04" (1/1) ... [2020-10-25 21:59:04,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:04" (1/1) ... [2020-10-25 21:59:04,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:59:04,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:59:04,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:59:04,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:59:04,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:59:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:59:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:59:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-25 21:59:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-25 21:59:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:59:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:59:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-25 21:59:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-25 21:59:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:59:18,334 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:59:18,335 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-25 21:59:18,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:59:18 BoogieIcfgContainer [2020-10-25 21:59:18,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:59:18,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:59:18,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:59:18,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:59:18,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:59:03" (1/3) ... [2020-10-25 21:59:18,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d909ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:59:18, skipping insertion in model container [2020-10-25 21:59:18,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:59:04" (2/3) ... [2020-10-25 21:59:18,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d909ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:59:18, skipping insertion in model container [2020-10-25 21:59:18,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:59:18" (3/3) ... [2020-10-25 21:59:18,347 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2020-10-25 21:59:18,360 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:59:18,368 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:59:18,381 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:59:18,411 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:59:18,411 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:59:18,411 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:59:18,411 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:59:18,411 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:59:18,411 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:59:18,411 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:59:18,412 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:59:18,427 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-25 21:59:18,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 21:59:18,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:59:18,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:59:18,435 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:59:18,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:59:18,442 INFO L82 PathProgramCache]: Analyzing trace with hash 627170052, now seen corresponding path program 1 times [2020-10-25 21:59:18,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:59:18,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173321376] [2020-10-25 21:59:18,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-25 21:59:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:59:19,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-25 21:59:19,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:59:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:19,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:59:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:19,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173321376] [2020-10-25 21:59:19,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:59:19,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-25 21:59:19,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041933012] [2020-10-25 21:59:19,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:59:19,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:59:19,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:59:19,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:59:19,164 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-10-25 21:59:19,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:59:19,190 INFO L93 Difference]: Finished difference Result 72 states and 113 transitions. [2020-10-25 21:59:19,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:59:19,192 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-25 21:59:19,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:59:19,203 INFO L225 Difference]: With dead ends: 72 [2020-10-25 21:59:19,204 INFO L226 Difference]: Without dead ends: 33 [2020-10-25 21:59:19,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:59:19,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-25 21:59:19,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-25 21:59:19,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-25 21:59:19,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2020-10-25 21:59:19,250 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11 [2020-10-25 21:59:19,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:59:19,250 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2020-10-25 21:59:19,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:59:19,251 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2020-10-25 21:59:19,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-25 21:59:19,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:59:19,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:59:19,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:59:19,467 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:59:19,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:59:19,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1650641455, now seen corresponding path program 1 times [2020-10-25 21:59:19,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:59:19,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133708995] [2020-10-25 21:59:19,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-25 21:59:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:59:20,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 21:59:20,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:59:20,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:20,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:59:20,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:20,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133708995] [2020-10-25 21:59:20,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:59:20,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-25 21:59:20,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680939578] [2020-10-25 21:59:20,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 21:59:20,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:59:20,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 21:59:20,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 21:59:20,083 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 3 states. [2020-10-25 21:59:20,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:59:20,119 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2020-10-25 21:59:20,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 21:59:20,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-25 21:59:20,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:59:20,122 INFO L225 Difference]: With dead ends: 59 [2020-10-25 21:59:20,124 INFO L226 Difference]: Without dead ends: 33 [2020-10-25 21:59:20,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 21:59:20,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-25 21:59:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-25 21:59:20,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-25 21:59:20,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2020-10-25 21:59:20,137 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12 [2020-10-25 21:59:20,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:59:20,138 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2020-10-25 21:59:20,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 21:59:20,139 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2020-10-25 21:59:20,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-25 21:59:20,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:59:20,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:59:20,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 21:59:20,358 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:59:20,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:59:20,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1227406364, now seen corresponding path program 1 times [2020-10-25 21:59:20,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:59:20,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853472914] [2020-10-25 21:59:20,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-25 21:59:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:59:20,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-25 21:59:20,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:59:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:21,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:59:21,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:21,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853472914] [2020-10-25 21:59:21,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:59:21,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-25 21:59:21,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679582210] [2020-10-25 21:59:21,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-25 21:59:21,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:59:21,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-25 21:59:21,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-25 21:59:21,481 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 10 states. [2020-10-25 21:59:22,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:59:22,088 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2020-10-25 21:59:22,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 21:59:22,142 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-25 21:59:22,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:59:22,143 INFO L225 Difference]: With dead ends: 38 [2020-10-25 21:59:22,143 INFO L226 Difference]: Without dead ends: 18 [2020-10-25 21:59:22,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-25 21:59:22,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-25 21:59:22,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-25 21:59:22,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-25 21:59:22,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-10-25 21:59:22,149 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-10-25 21:59:22,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:59:22,149 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-10-25 21:59:22,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-25 21:59:22,149 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-10-25 21:59:22,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-25 21:59:22,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:59:22,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:59:22,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-25 21:59:22,353 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:59:22,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:59:22,355 INFO L82 PathProgramCache]: Analyzing trace with hash -618100041, now seen corresponding path program 1 times [2020-10-25 21:59:22,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:59:22,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330370439] [2020-10-25 21:59:22,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-25 21:59:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:59:23,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-25 21:59:23,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:59:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:23,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:59:25,764 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-10-25 21:59:25,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:59:25,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330370439] [2020-10-25 21:59:25,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:59:25,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-25 21:59:25,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73562898] [2020-10-25 21:59:25,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-25 21:59:25,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:59:25,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-25 21:59:25,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-25 21:59:25,781 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 10 states. [2020-10-25 21:59:26,563 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 15 [2020-10-25 21:59:27,040 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2020-10-25 21:59:27,477 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2020-10-25 21:59:27,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:59:27,479 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-10-25 21:59:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 21:59:27,479 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-25 21:59:27,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:59:27,480 INFO L225 Difference]: With dead ends: 18 [2020-10-25 21:59:27,480 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 21:59:27,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-25 21:59:27,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 21:59:27,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 21:59:27,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 21:59:27,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 21:59:27,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-25 21:59:27,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:59:27,485 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 21:59:27,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-25 21:59:27,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 21:59:27,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 21:59:27,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-25 21:59:27,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 21:59:28,112 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-25 21:59:28,392 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-10-25 21:59:28,488 INFO L274 CegarLoopResult]: For program point L118-1(lines 118 122) no Hoare annotation was computed. [2020-10-25 21:59:28,488 INFO L270 CegarLoopResult]: At program point L118-2(lines 118 122) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19| (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_4 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_4 (_ bv0 32)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0)) [2020-10-25 21:59:28,489 INFO L274 CegarLoopResult]: For program point L118-3(lines 118 122) no Hoare annotation was computed. [2020-10-25 21:59:28,489 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 21:59:28,489 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 21:59:28,489 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 21:59:28,489 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 21:59:28,489 INFO L274 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2020-10-25 21:59:28,489 INFO L274 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-25 21:59:28,489 INFO L274 CegarLoopResult]: For program point L136-2(lines 136 145) no Hoare annotation was computed. [2020-10-25 21:59:28,489 INFO L274 CegarLoopResult]: For program point L70(lines 70 86) no Hoare annotation was computed. [2020-10-25 21:59:28,490 INFO L274 CegarLoopResult]: For program point L136-4(lines 136 145) no Hoare annotation was computed. [2020-10-25 21:59:28,490 INFO L274 CegarLoopResult]: For program point L54-1(lines 54 58) no Hoare annotation was computed. [2020-10-25 21:59:28,490 INFO L270 CegarLoopResult]: At program point L54-2(lines 54 58) the Hoare annotation is: false [2020-10-25 21:59:28,491 INFO L274 CegarLoopResult]: For program point L71(lines 71 78) no Hoare annotation was computed. [2020-10-25 21:59:28,491 INFO L274 CegarLoopResult]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2020-10-25 21:59:28,491 INFO L270 CegarLoopResult]: At program point L38-2(lines 38 42) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_4 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_4 (_ bv0 32)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (exists ((v_prenex_4 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_logf_~x ((_ to_fp 8 24) v_prenex_4 (_ bv0 32))))) [2020-10-25 21:59:28,491 INFO L274 CegarLoopResult]: For program point L38-3(lines 38 42) no Hoare annotation was computed. [2020-10-25 21:59:28,492 INFO L274 CegarLoopResult]: For program point L63-1(lines 63 67) no Hoare annotation was computed. [2020-10-25 21:59:28,492 INFO L270 CegarLoopResult]: At program point L63-2(lines 63 67) the Hoare annotation is: false [2020-10-25 21:59:28,492 INFO L274 CegarLoopResult]: For program point L63-3(lines 63 67) no Hoare annotation was computed. [2020-10-25 21:59:28,492 INFO L270 CegarLoopResult]: At program point L113(line 113) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_4 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_4 (_ bv0 32)))) (exists ((ULTIMATE.start___ieee754_logf_~x (_ FloatingPoint 8 24))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (exists ((v_prenex_4 RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)) ((_ to_fp 8 24) v_prenex_4 (_ bv0 32)))) (exists ((v_prenex_4 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_logf_~x ((_ to_fp 8 24) v_prenex_4 (_ bv0 32))))) [2020-10-25 21:59:28,493 INFO L274 CegarLoopResult]: For program point L80(lines 80 85) no Hoare annotation was computed. [2020-10-25 21:59:28,493 INFO L274 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-10-25 21:59:28,493 INFO L274 CegarLoopResult]: For program point L105(lines 105 108) no Hoare annotation was computed. [2020-10-25 21:59:28,493 INFO L274 CegarLoopResult]: For program point L72(lines 72 77) no Hoare annotation was computed. [2020-10-25 21:59:28,493 INFO L274 CegarLoopResult]: For program point L97(lines 97 109) no Hoare annotation was computed. [2020-10-25 21:59:28,494 INFO L277 CegarLoopResult]: At program point L147(lines 127 148) the Hoare annotation is: true [2020-10-25 21:59:28,494 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 21:59:28,494 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:59:28,494 INFO L274 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2020-10-25 21:59:28,494 INFO L274 CegarLoopResult]: For program point L99(lines 99 103) no Hoare annotation was computed. [2020-10-25 21:59:28,495 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 21:59:28,495 INFO L270 CegarLoopResult]: At program point L124(lines 116 125) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19| (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_4 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_4 (_ bv0 32)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0)) [2020-10-25 21:59:28,495 INFO L274 CegarLoopResult]: For program point L141(lines 141 144) no Hoare annotation was computed. [2020-10-25 21:59:28,495 INFO L270 CegarLoopResult]: At program point L108(lines 34 110) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_4 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_4 (_ bv0 32)))) (exists ((ULTIMATE.start___ieee754_logf_~x (_ FloatingPoint 8 24))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_logf_~x ULTIMATE.start___ieee754_logf_~x) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (exists ((v_prenex_4 RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)) ((_ to_fp 8 24) v_prenex_4 (_ bv0 32)))) (exists ((v_prenex_4 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_logf_~x ((_ to_fp 8 24) v_prenex_4 (_ bv0 32))))) [2020-10-25 21:59:28,496 INFO L274 CegarLoopResult]: For program point L51(lines 51 59) no Hoare annotation was computed. [2020-10-25 21:59:28,496 INFO L274 CegarLoopResult]: For program point L51-1(lines 51 59) no Hoare annotation was computed. [2020-10-25 21:59:28,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,516 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,517 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,521 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,530 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,531 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,531 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,537 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,538 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,538 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,540 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,541 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,541 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,542 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,542 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,542 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,542 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,543 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,543 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,543 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,543 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,544 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,545 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,546 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,547 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,547 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,547 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,547 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,548 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,548 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,548 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,548 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,555 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,556 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,560 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,560 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,562 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,562 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,562 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,563 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,563 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:59:28 BoogieIcfgContainer [2020-10-25 21:59:28,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:59:28,566 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:59:28,566 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:59:28,567 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:59:28,567 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:59:18" (3/4) ... [2020-10-25 21:59:28,571 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 21:59:28,586 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-10-25 21:59:28,587 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-25 21:59:28,587 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:59:28,588 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:59:28,617 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_float(x)-aux && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log [2020-10-25 21:59:28,618 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_float(x)-aux && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log [2020-10-25 21:59:28,618 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32))) [2020-10-25 21:59:28,619 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && (\exists ULTIMATE.start___ieee754_logf_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_logf_~x, ULTIMATE.start___ieee754_logf_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32))) [2020-10-25 21:59:28,619 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && (\exists ULTIMATE.start___ieee754_logf_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_logf_~x, ULTIMATE.start___ieee754_logf_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32))) [2020-10-25 21:59:28,667 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:59:28,667 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:59:28,669 INFO L168 Benchmark]: Toolchain (without parser) took 24806.15 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.4 MB in the beginning and 29.5 MB in the end (delta: -6.1 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:28,670 INFO L168 Benchmark]: CDTParser took 1.24 ms. Allocated memory is still 46.1 MB. Free memory was 26.4 MB in the beginning and 26.4 MB in the end (delta: 35.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:59:28,671 INFO L168 Benchmark]: CACSL2BoogieTranslator took 476.04 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.8 MB in the beginning and 31.2 MB in the end (delta: -8.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:28,671 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.70 ms. Allocated memory is still 56.6 MB. Free memory was 31.2 MB in the beginning and 29.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:28,672 INFO L168 Benchmark]: Boogie Preprocessor took 108.47 ms. Allocated memory is still 56.6 MB. Free memory was 29.1 MB in the beginning and 27.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:28,672 INFO L168 Benchmark]: RCFGBuilder took 13763.42 ms. Allocated memory is still 56.6 MB. Free memory was 27.2 MB in the beginning and 32.7 MB in the end (delta: -5.5 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:28,673 INFO L168 Benchmark]: TraceAbstraction took 10226.65 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 34.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:28,674 INFO L168 Benchmark]: Witness Printer took 101.24 ms. Allocated memory is still 56.6 MB. Free memory was 34.5 MB in the beginning and 29.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:59:28,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.24 ms. Allocated memory is still 46.1 MB. Free memory was 26.4 MB in the beginning and 26.4 MB in the end (delta: 35.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 476.04 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.8 MB in the beginning and 31.2 MB in the end (delta: -8.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 113.70 ms. Allocated memory is still 56.6 MB. Free memory was 31.2 MB in the beginning and 29.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.47 ms. Allocated memory is still 56.6 MB. Free memory was 29.1 MB in the beginning and 27.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 13763.42 ms. Allocated memory is still 56.6 MB. Free memory was 27.2 MB in the beginning and 32.7 MB in the end (delta: -5.5 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10226.65 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 34.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Witness Printer took 101.24 ms. Allocated memory is still 56.6 MB. Free memory was 34.5 MB in the beginning and 29.5 MB in the end (delta: 5.0 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,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[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,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[v_prenex_4,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[v_prenex_4,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[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,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[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,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[v_prenex_4,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[v_prenex_4,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[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,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[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,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 * 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: 113]: Loop Invariant [2020-10-25 21:59:28,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,696 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,696 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,697 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,697 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,698 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,700 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,700 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,701 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,701 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,704 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,704 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && (\exists ULTIMATE.start___ieee754_logf_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_logf_~x, ULTIMATE.start___ieee754_logf_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32))) - InvariantResult [Line: 116]: Loop Invariant [2020-10-25 21:59:28,705 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,707 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,707 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,707 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,708 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,708 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((aux-x < 0 && isfinite_float(x)-aux && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log - InvariantResult [Line: 34]: Loop Invariant [2020-10-25 21:59:28,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,715 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,715 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x,QUANTIFIED] [2020-10-25 21:59:28,716 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,717 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,717 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && (\exists ULTIMATE.start___ieee754_logf_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_logf_~x, ULTIMATE.start___ieee754_logf_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32))) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 118]: Loop Invariant [2020-10-25 21:59:28,719 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,719 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,720 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,720 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((aux-x < 0 && isfinite_float(x)-aux && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log - InvariantResult [Line: 38]: Loop Invariant [2020-10-25 21:59:28,722 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,722 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,723 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:59:28,724 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-10-25 21:59:28,725 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:59:28,725 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32)))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists v_prenex_4 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_4, 0bv32))) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 116 SDtfs, 35 SDslu, 115 SDs, 0 SdLazy, 35 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 14 NumberOfFragments, 149 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 104 ConstructedInterpolants, 30 QuantifiedInterpolants, 9688 SizeOfPredicates, 17 NumberOfNonLiveVariables, 265 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...