./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0970a.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 88d3648b8ee059de01de6f913fc316c297763bb6 ........................................................................................................................................................................................................................................................................................................................................................... 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_0970a.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 88d3648b8ee059de01de6f913fc316c297763bb6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:24:31,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:24:31,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:24:31,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:24:31,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:24:31,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:24:31,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:24:31,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:24:31,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:24:31,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:24:31,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:24:31,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:24:31,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:24:31,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:24:31,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:24:31,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:24:31,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:24:31,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:24:31,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:24:31,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:24:31,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:24:31,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:24:31,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:24:31,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:24:31,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:24:31,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:24:31,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:24:31,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:24:31,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:24:31,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:24:31,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:24:31,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:24:31,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:24:31,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:24:31,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:24:31,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:24:31,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:24:31,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:24:31,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:24:31,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:24:31,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:24:31,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:24:31,517 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:24:31,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:24:31,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:24:31,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:24:31,520 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:24:31,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:24:31,521 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:24:31,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:24:31,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:24:31,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:24:31,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:24:31,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:24:31,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:24:31,523 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:24:31,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:24:31,524 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:24:31,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:24:31,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:24:31,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:24:31,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:24:31,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:24:31,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:24:31,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:24:31,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:24:31,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:24:31,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:24:31,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:24:31,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:24:31,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:24:31,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2020-10-24 23:24:32,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:24:32,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:24:32,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:24:32,076 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:24:32,078 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:24:32,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-10-24 23:24:32,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4adbc27d9/71fef73599b24e36ad3e91b2656a2efe/FLAG0e4f874a2 [2020-10-24 23:24:32,838 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:24:32,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-10-24 23:24:32,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4adbc27d9/71fef73599b24e36ad3e91b2656a2efe/FLAG0e4f874a2 [2020-10-24 23:24:33,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4adbc27d9/71fef73599b24e36ad3e91b2656a2efe [2020-10-24 23:24:33,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:24:33,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:24:33,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:24:33,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:24:33,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:24:33,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:24:33" (1/1) ... [2020-10-24 23:24:33,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7d9b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:33, skipping insertion in model container [2020-10-24 23:24:33,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:24:33" (1/1) ... [2020-10-24 23:24:33,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:24:33,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:24:33,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:24:33,548 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:24:33,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:24:33,641 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:24:33,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:33 WrapperNode [2020-10-24 23:24:33,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:24:33,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:24:33,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:24:33,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:24:33,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:33" (1/1) ... [2020-10-24 23:24:33,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:33" (1/1) ... [2020-10-24 23:24:33,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:24:33,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:24:33,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:24:33,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:24:33,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:33" (1/1) ... [2020-10-24 23:24:33,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:33" (1/1) ... [2020-10-24 23:24:33,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:33" (1/1) ... [2020-10-24 23:24:33,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:33" (1/1) ... [2020-10-24 23:24:33,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:33" (1/1) ... [2020-10-24 23:24:33,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:33" (1/1) ... [2020-10-24 23:24:33,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:33" (1/1) ... [2020-10-24 23:24:33,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:24:33,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:24:33,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:24:33,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:24:33,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:24:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:24:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:24:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:24:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:24:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:24:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:24:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:24:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:24:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:24:34,759 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:24:34,759 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-10-24 23:24:34,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:24:34 BoogieIcfgContainer [2020-10-24 23:24:34,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:24:34,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:24:34,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:24:34,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:24:34,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:24:33" (1/3) ... [2020-10-24 23:24:34,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0fdbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:24:34, skipping insertion in model container [2020-10-24 23:24:34,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:33" (2/3) ... [2020-10-24 23:24:34,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0fdbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:24:34, skipping insertion in model container [2020-10-24 23:24:34,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:24:34" (3/3) ... [2020-10-24 23:24:34,773 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2020-10-24 23:24:34,786 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:24:34,792 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:24:34,805 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:24:34,835 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:24:34,836 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:24:34,836 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:24:34,836 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:24:34,836 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:24:34,837 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:24:34,837 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:24:34,837 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:24:34,854 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-10-24 23:24:34,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:24:34,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:24:34,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:24:34,862 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:24:34,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:24:34,869 INFO L82 PathProgramCache]: Analyzing trace with hash 629078660, now seen corresponding path program 1 times [2020-10-24 23:24:34,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:24:34,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570210589] [2020-10-24 23:24:34,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:24:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:24:35,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:24:35,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570210589] [2020-10-24 23:24:35,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:24:35,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:24:35,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619860167] [2020-10-24 23:24:35,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:24:35,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:24:35,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:24:35,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:24:35,069 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2020-10-24 23:24:35,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:24:35,097 INFO L93 Difference]: Finished difference Result 100 states and 161 transitions. [2020-10-24 23:24:35,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:24:35,099 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-24 23:24:35,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:24:35,110 INFO L225 Difference]: With dead ends: 100 [2020-10-24 23:24:35,110 INFO L226 Difference]: Without dead ends: 47 [2020-10-24 23:24:35,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:24:35,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-24 23:24:35,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-24 23:24:35,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-24 23:24:35,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2020-10-24 23:24:35,157 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 11 [2020-10-24 23:24:35,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:24:35,158 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-10-24 23:24:35,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:24:35,158 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2020-10-24 23:24:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 23:24:35,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:24:35,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:24:35,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:24:35,160 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:24:35,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:24:35,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1648732847, now seen corresponding path program 1 times [2020-10-24 23:24:35,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:24:35,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42293930] [2020-10-24 23:24:35,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:24:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:24:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:24:35,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42293930] [2020-10-24 23:24:35,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:24:35,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 23:24:35,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593531488] [2020-10-24 23:24:35,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 23:24:35,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:24:35,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 23:24:35,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 23:24:35,232 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 3 states. [2020-10-24 23:24:35,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:24:35,259 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2020-10-24 23:24:35,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 23:24:35,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-24 23:24:35,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:24:35,262 INFO L225 Difference]: With dead ends: 87 [2020-10-24 23:24:35,262 INFO L226 Difference]: Without dead ends: 47 [2020-10-24 23:24:35,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 23:24:35,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-24 23:24:35,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-24 23:24:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-24 23:24:35,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2020-10-24 23:24:35,271 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2020-10-24 23:24:35,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:24:35,271 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2020-10-24 23:24:35,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 23:24:35,271 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2020-10-24 23:24:35,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-24 23:24:35,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:24:35,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:24:35,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:24:35,273 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:24:35,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:24:35,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1229314972, now seen corresponding path program 1 times [2020-10-24 23:24:35,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:24:35,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269881028] [2020-10-24 23:24:35,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:24:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:24:35,354 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:24:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:24:35,414 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:24:35,473 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:24:35,474 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:24:35,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 23:24:35,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:24:35 BoogieIcfgContainer [2020-10-24 23:24:35,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:24:35,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:24:35,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:24:35,534 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:24:35,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:24:34" (3/4) ... [2020-10-24 23:24:35,539 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:24:35,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:24:35,549 INFO L168 Benchmark]: Toolchain (without parser) took 2346.94 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.5 MB in the beginning and 22.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:24:35,552 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 41.9 MB. Free memory was 21.9 MB in the beginning and 21.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:24:35,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.95 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 25.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:24:35,555 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.26 ms. Allocated memory is still 50.3 MB. Free memory was 25.1 MB in the beginning and 22.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:24:35,556 INFO L168 Benchmark]: Boogie Preprocessor took 60.38 ms. Allocated memory is still 50.3 MB. Free memory was 22.8 MB in the beginning and 34.0 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:24:35,559 INFO L168 Benchmark]: RCFGBuilder took 942.59 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 34.0 MB in the beginning and 39.9 MB in the end (delta: -5.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:24:35,560 INFO L168 Benchmark]: TraceAbstraction took 768.11 ms. Allocated memory is still 60.8 MB. Free memory was 39.6 MB in the beginning and 22.5 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:24:35,562 INFO L168 Benchmark]: Witness Printer took 9.08 ms. Allocated memory is still 60.8 MB. Free memory was 22.5 MB in the beginning and 22.1 MB in the end (delta: 377.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:24:35,576 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 41.9 MB. Free memory was 21.9 MB in the beginning and 21.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 440.95 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 25.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.26 ms. Allocated memory is still 50.3 MB. Free memory was 25.1 MB in the beginning and 22.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.38 ms. Allocated memory is still 50.3 MB. Free memory was 22.8 MB in the beginning and 34.0 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 942.59 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 34.0 MB in the beginning and 39.9 MB in the end (delta: -5.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 768.11 ms. Allocated memory is still 60.8 MB. Free memory was 39.6 MB in the beginning and 22.5 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * Witness Printer took 9.08 ms. Allocated memory is still 60.8 MB. Free memory was 22.5 MB in the beginning and 22.1 MB in the end (delta: 377.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 147, overapproximation of bitwiseAnd at line 118, overapproximation of someBinaryArithmeticFLOAToperation at line 119. Possible FailurePath: [L14-L18] 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; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L168] float x = __VERIFIER_nondet_float(); [L170] x < 0 && isfinite_float(x) [L151] __int32_t ix; VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L153] ieee_float_shape_type gf_u; [L154] gf_u.value = (x) [L155] EXPR gf_u.word [L155] (ix) = gf_u.word [L157] ix &= 0x7fffffff [L158] return (((ix) < 0x7f800000L)); VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L170] x < 0 && isfinite_float(x) VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L170] COND TRUE x < 0 && isfinite_float(x) [L108] float y, z; [L109] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L172] float res = __ieee754_log10f(x); [L147] return x != x; VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L175] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0970a.c", 3, "reach_error") VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 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: 129 SDtfs, 0 SDslu, 57 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=52occurred 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, 0.0s 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-a4ecdab [2020-10-24 23:24:38,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:24:38,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:24:38,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:24:38,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:24:38,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:24:38,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:24:38,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:24:38,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:24:38,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:24:38,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:24:38,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:24:38,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:24:38,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:24:38,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:24:38,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:24:38,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:24:38,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:24:38,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:24:38,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:24:38,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:24:38,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:24:38,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:24:38,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:24:38,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:24:38,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:24:38,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:24:38,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:24:38,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:24:38,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:24:38,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:24:38,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:24:38,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:24:38,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:24:38,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:24:38,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:24:38,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:24:38,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:24:38,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:24:38,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:24:38,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:24:38,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:24:38,564 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:24:38,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:24:38,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:24:38,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:24:38,570 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:24:38,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:24:38,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:24:38,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:24:38,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:24:38,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:24:38,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:24:38,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:24:38,573 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:24:38,573 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:24:38,574 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:24:38,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:24:38,574 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:24:38,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:24:38,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:24:38,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:24:38,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:24:38,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:24:38,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:24:38,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:24:38,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:24:38,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:24:38,577 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:24:38,577 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:24:38,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:24:38,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:24:38,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:24:38,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2020-10-24 23:24:38,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:24:39,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:24:39,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:24:39,040 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:24:39,041 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:24:39,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-10-24 23:24:39,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/facebcb69/8bcafca25ea84e7f9fa5162b4c6ad2df/FLAG1ea58ad7d [2020-10-24 23:24:39,857 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:24:39,859 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-10-24 23:24:39,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/facebcb69/8bcafca25ea84e7f9fa5162b4c6ad2df/FLAG1ea58ad7d [2020-10-24 23:24:40,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/facebcb69/8bcafca25ea84e7f9fa5162b4c6ad2df [2020-10-24 23:24:40,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:24:40,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:24:40,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:24:40,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:24:40,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:24:40,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:24:40" (1/1) ... [2020-10-24 23:24:40,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24453784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:40, skipping insertion in model container [2020-10-24 23:24:40,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:24:40" (1/1) ... [2020-10-24 23:24:40,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:24:40,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:24:40,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:24:40,593 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:24:40,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:24:40,668 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:24:40,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:40 WrapperNode [2020-10-24 23:24:40,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:24:40,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:24:40,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:24:40,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:24:40,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:40" (1/1) ... [2020-10-24 23:24:40,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:40" (1/1) ... [2020-10-24 23:24:40,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:24:40,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:24:40,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:24:40,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:24:40,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:40" (1/1) ... [2020-10-24 23:24:40,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:40" (1/1) ... [2020-10-24 23:24:40,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:40" (1/1) ... [2020-10-24 23:24:40,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:40" (1/1) ... [2020-10-24 23:24:40,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:40" (1/1) ... [2020-10-24 23:24:40,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:40" (1/1) ... [2020-10-24 23:24:40,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:40" (1/1) ... [2020-10-24 23:24:40,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:24:40,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:24:40,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:24:40,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:24:40,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:24:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:24:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:24:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:24:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:24:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:24:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:24:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:24:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:24:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:24:56,614 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:24:56,614 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-10-24 23:24:56,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:24:56 BoogieIcfgContainer [2020-10-24 23:24:56,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:24:56,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:24:56,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:24:56,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:24:56,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:24:40" (1/3) ... [2020-10-24 23:24:56,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e092e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:24:56, skipping insertion in model container [2020-10-24 23:24:56,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:40" (2/3) ... [2020-10-24 23:24:56,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e092e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:24:56, skipping insertion in model container [2020-10-24 23:24:56,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:24:56" (3/3) ... [2020-10-24 23:24:56,630 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2020-10-24 23:24:56,643 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:24:56,649 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:24:56,663 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:24:56,689 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:24:56,690 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:24:56,690 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:24:56,690 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:24:56,690 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:24:56,690 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:24:56,690 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:24:56,690 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:24:56,704 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-10-24 23:24:56,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:24:56,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:24:56,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:24:56,711 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:24:56,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:24:56,718 INFO L82 PathProgramCache]: Analyzing trace with hash 629078660, now seen corresponding path program 1 times [2020-10-24 23:24:56,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:24:56,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008536877] [2020-10-24 23:24:56,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 23:24:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:24:57,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:24:57,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:24:57,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:24:57,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:24:57,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:24:57,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008536877] [2020-10-24 23:24:57,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:24:57,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:24:57,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089213218] [2020-10-24 23:24:57,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:24:57,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:24:57,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:24:57,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:24:57,605 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2020-10-24 23:24:57,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:24:57,632 INFO L93 Difference]: Finished difference Result 100 states and 161 transitions. [2020-10-24 23:24:57,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:24:57,633 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-24 23:24:57,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:24:57,646 INFO L225 Difference]: With dead ends: 100 [2020-10-24 23:24:57,646 INFO L226 Difference]: Without dead ends: 47 [2020-10-24 23:24:57,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:24:57,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-24 23:24:57,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-24 23:24:57,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-24 23:24:57,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2020-10-24 23:24:57,696 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 11 [2020-10-24 23:24:57,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:24:57,696 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-10-24 23:24:57,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:24:57,697 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2020-10-24 23:24:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 23:24:57,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:24:57,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:24:57,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:24:57,912 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:24:57,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:24:57,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1648732847, now seen corresponding path program 1 times [2020-10-24 23:24:57,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:24:57,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833144113] [2020-10-24 23:24:57,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 23:24:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:24:58,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 23:24:58,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:24:58,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:24:58,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:24:58,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:24:58,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833144113] [2020-10-24 23:24:58,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:24:58,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-24 23:24:58,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833224321] [2020-10-24 23:24:58,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 23:24:58,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:24:58,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 23:24:58,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 23:24:58,708 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 3 states. [2020-10-24 23:24:58,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:24:58,779 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2020-10-24 23:24:58,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 23:24:58,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-24 23:24:58,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:24:58,783 INFO L225 Difference]: With dead ends: 87 [2020-10-24 23:24:58,784 INFO L226 Difference]: Without dead ends: 47 [2020-10-24 23:24:58,785 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 [2020-10-24 23:24:58,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-24 23:24:58,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-24 23:24:58,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-24 23:24:58,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2020-10-24 23:24:58,799 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2020-10-24 23:24:58,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:24:58,799 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2020-10-24 23:24:58,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 23:24:58,799 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2020-10-24 23:24:58,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-24 23:24:58,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:24:58,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:24:59,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:24:59,014 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:24:59,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:24:59,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1229314972, now seen corresponding path program 1 times [2020-10-24 23:24:59,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:24:59,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428870653] [2020-10-24 23:24:59,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 23:24:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:24:59,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:24:59,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:24:59,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:24:59,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:00,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:00,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428870653] [2020-10-24 23:25:00,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:00,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-24 23:25:00,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218644326] [2020-10-24 23:25:00,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 23:25:00,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:00,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 23:25:00,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:25:00,181 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand 10 states. [2020-10-24 23:25:00,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:00,980 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2020-10-24 23:25:01,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 23:25:01,042 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-24 23:25:01,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:01,043 INFO L225 Difference]: With dead ends: 52 [2020-10-24 23:25:01,043 INFO L226 Difference]: Without dead ends: 18 [2020-10-24 23:25:01,044 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 [2020-10-24 23:25:01,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-24 23:25:01,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-24 23:25:01,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-24 23:25:01,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-10-24 23:25:01,049 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-10-24 23:25:01,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:01,049 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-10-24 23:25:01,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 23:25:01,049 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-10-24 23:25:01,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-24 23:25:01,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:01,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:01,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:25:01,260 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:01,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:01,261 INFO L82 PathProgramCache]: Analyzing trace with hash -616191433, now seen corresponding path program 1 times [2020-10-24 23:25:01,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:01,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855267794] [2020-10-24 23:25:01,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 23:25:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:02,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-24 23:25:02,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:02,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:02,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:04,695 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-10-24 23:25:04,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:04,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855267794] [2020-10-24 23:25:04,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:04,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-24 23:25:04,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115205893] [2020-10-24 23:25:04,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 23:25:04,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:04,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 23:25:04,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:25:04,714 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 10 states. [2020-10-24 23:25:05,928 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2020-10-24 23:25:05,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:05,929 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-10-24 23:25:05,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 23:25:05,930 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-24 23:25:05,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:05,930 INFO L225 Difference]: With dead ends: 18 [2020-10-24 23:25:05,930 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:25:05,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-24 23:25:05,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:25:05,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:25:05,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:25:05,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:25:05,933 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-24 23:25:05,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:05,933 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:25:05,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 23:25:05,933 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:25:05,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:25:06,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 23:25:06,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:25:06,457 INFO L274 CegarLoopResult]: For program point L93(lines 93 96) no Hoare annotation was computed. [2020-10-24 23:25:06,457 INFO L274 CegarLoopResult]: For program point L60(lines 60 65) no Hoare annotation was computed. [2020-10-24 23:25:06,458 INFO L274 CegarLoopResult]: For program point L118(lines 118 119) no Hoare annotation was computed. [2020-10-24 23:25:06,458 INFO L274 CegarLoopResult]: For program point L85(lines 85 97) no Hoare annotation was computed. [2020-10-24 23:25:06,458 INFO L270 CegarLoopResult]: At program point L143(lines 107 144) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)) ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (not (fp.eq |ULTIMATE.start___ieee754_log10f_#res| |ULTIMATE.start___ieee754_log10f_#res|)) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-10-24 23:25:06,458 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:25:06,458 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:25:06,458 INFO L274 CegarLoopResult]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2020-10-24 23:25:06,459 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:25:06,459 INFO L270 CegarLoopResult]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2020-10-24 23:25:06,459 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:25:06,459 INFO L274 CegarLoopResult]: For program point L152-1(lines 152 156) no Hoare annotation was computed. [2020-10-24 23:25:06,459 INFO L270 CegarLoopResult]: At program point L152-2(lines 152 156) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) |ULTIMATE.start_main_#t~short24| (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-10-24 23:25:06,459 INFO L274 CegarLoopResult]: For program point L152-3(lines 152 156) no Hoare annotation was computed. [2020-10-24 23:25:06,459 INFO L274 CegarLoopResult]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2020-10-24 23:25:06,460 INFO L270 CegarLoopResult]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-10-24 23:25:06,460 INFO L274 CegarLoopResult]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2020-10-24 23:25:06,460 INFO L274 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-10-24 23:25:06,460 INFO L274 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-10-24 23:25:06,460 INFO L274 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-10-24 23:25:06,460 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-10-24 23:25:06,460 INFO L274 CegarLoopResult]: For program point L170-2(lines 170 179) no Hoare annotation was computed. [2020-10-24 23:25:06,460 INFO L274 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2020-10-24 23:25:06,460 INFO L270 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2020-10-24 23:25:06,461 INFO L274 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2020-10-24 23:25:06,461 INFO L274 CegarLoopResult]: For program point L170-4(lines 170 179) no Hoare annotation was computed. [2020-10-24 23:25:06,461 INFO L270 CegarLoopResult]: At program point L96(lines 22 98) the Hoare annotation is: false [2020-10-24 23:25:06,461 INFO L274 CegarLoopResult]: For program point L39(lines 39 47) no Hoare annotation was computed. [2020-10-24 23:25:06,461 INFO L274 CegarLoopResult]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2020-10-24 23:25:06,461 INFO L274 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-10-24 23:25:06,461 INFO L270 CegarLoopResult]: At program point L147(line 147) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)) ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (not (fp.eq |ULTIMATE.start___ieee754_log10f_#res| |ULTIMATE.start___ieee754_log10f_#res|)) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-10-24 23:25:06,462 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:25:06,462 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:25:06,462 INFO L277 CegarLoopResult]: At program point L181(lines 161 182) the Hoare annotation is: true [2020-10-24 23:25:06,462 INFO L274 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-10-24 23:25:06,462 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:25:06,462 INFO L274 CegarLoopResult]: For program point L124(lines 124 132) no Hoare annotation was computed. [2020-10-24 23:25:06,462 INFO L274 CegarLoopResult]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2020-10-24 23:25:06,463 INFO L274 CegarLoopResult]: For program point L58(lines 58 74) no Hoare annotation was computed. [2020-10-24 23:25:06,463 INFO L274 CegarLoopResult]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2020-10-24 23:25:06,463 INFO L270 CegarLoopResult]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2020-10-24 23:25:06,463 INFO L270 CegarLoopResult]: At program point L158(lines 150 159) the Hoare annotation is: (and (exists ((v_prenex_6 RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) v_prenex_6 (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) |ULTIMATE.start_main_#t~short24| (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-10-24 23:25:06,463 INFO L274 CegarLoopResult]: For program point L59(lines 59 66) no Hoare annotation was computed. [2020-10-24 23:25:06,463 INFO L274 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2020-10-24 23:25:06,463 INFO L270 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2020-10-24 23:25:06,463 INFO L274 CegarLoopResult]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2020-10-24 23:25:06,464 INFO L274 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-10-24 23:25:06,464 INFO L270 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2020-10-24 23:25:06,464 INFO L274 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-10-24 23:25:06,464 INFO L274 CegarLoopResult]: For program point L175(lines 175 178) no Hoare annotation was computed. [2020-10-24 23:25:06,464 INFO L274 CegarLoopResult]: For program point L68(lines 68 73) no Hoare annotation was computed. [2020-10-24 23:25:06,464 INFO L274 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-10-24 23:25:06,473 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,474 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,477 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,477 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,484 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,484 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,485 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,485 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,485 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,487 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,487 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,487 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,488 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,488 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,488 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,488 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,489 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,490 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,490 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,490 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,491 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,491 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,492 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,493 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,493 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,494 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,495 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,495 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,495 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,496 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,496 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,497 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,497 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,497 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,497 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,498 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,498 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:25:06 BoogieIcfgContainer [2020-10-24 23:25:06,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:25:06,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:25:06,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:25:06,501 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:25:06,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:24:56" (3/4) ... [2020-10-24 23:25:06,505 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:25:06,523 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2020-10-24 23:25:06,524 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-10-24 23:25:06,524 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:25:06,525 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:25:06,556 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && aux-x < 0 && isfinite_float(x)-aux) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-10-24 23:25:06,556 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-10-24 23:25:06,557 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && aux-x < 0 && isfinite_float(x)-aux) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-10-24 23:25:06,557 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-10-24 23:25:06,558 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-10-24 23:25:06,631 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:25:06,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:25:06,633 INFO L168 Benchmark]: Toolchain (without parser) took 26454.51 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.7 MB in the beginning and 39.0 MB in the end (delta: -11.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:06,634 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 50.3 MB. Free memory was 35.2 MB in the beginning and 35.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:06,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.72 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 26.3 MB in the end (delta: 777.0 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:06,636 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.48 ms. Allocated memory is still 50.3 MB. Free memory was 26.1 MB in the beginning and 23.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:06,636 INFO L168 Benchmark]: Boogie Preprocessor took 96.40 ms. Allocated memory is still 50.3 MB. Free memory was 23.8 MB in the beginning and 21.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:06,637 INFO L168 Benchmark]: RCFGBuilder took 15766.48 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 34.5 MB in the beginning and 27.1 MB in the end (delta: 7.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:06,639 INFO L168 Benchmark]: TraceAbstraction took 9877.62 ms. Allocated memory is still 60.8 MB. Free memory was 43.2 MB in the beginning and 24.4 MB in the end (delta: 18.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:06,640 INFO L168 Benchmark]: Witness Printer took 130.70 ms. Allocated memory is still 60.8 MB. Free memory was 24.4 MB in the beginning and 39.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:06,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 50.3 MB. Free memory was 35.2 MB in the beginning and 35.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 481.72 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 26.3 MB in the end (delta: 777.0 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.48 ms. Allocated memory is still 50.3 MB. Free memory was 26.1 MB in the beginning and 23.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.40 ms. Allocated memory is still 50.3 MB. Free memory was 23.8 MB in the beginning and 21.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 15766.48 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 34.5 MB in the beginning and 27.1 MB in the end (delta: 7.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9877.62 ms. Allocated memory is still 60.8 MB. Free memory was 43.2 MB in the beginning and 24.4 MB in the end (delta: 18.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * Witness Printer took 130.70 ms. Allocated memory is still 60.8 MB. Free memory was 24.4 MB in the beginning and 39.0 MB in the end (delta: -14.6 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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_6,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_6,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_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,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_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - 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: 107]: Loop Invariant [2020-10-24 23:25:06,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,656 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 152]: Loop Invariant [2020-10-24 23:25:06,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,659 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,659 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && aux-x < 0 && isfinite_float(x)-aux) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant [2020-10-24 23:25:06,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,660 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,661 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,661 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,661 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant [2020-10-24 23:25:06,662 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,662 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,663 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,663 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,663 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,663 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,664 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,664 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,664 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,664 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,665 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,665 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && (\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 150]: Loop Invariant [2020-10-24 23:25:06,665 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,666 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,666 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,666 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,666 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-10-24 23:25:06,667 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:06,667 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:06,667 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\exists v_prenex_6 : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(v_prenex_6, 0bv32))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && aux-x < 0 && isfinite_float(x)-aux) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 152 SDtfs, 39 SDslu, 132 SDs, 0 SdLazy, 35 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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, 12 LocationsWithAnnotation, 12 PreInvPairs, 18 NumberOfFragments, 137 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 104 ConstructedInterpolants, 30 QuantifiedInterpolants, 9688 SizeOfPredicates, 17 NumberOfNonLiveVariables, 285 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...