./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=/tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer --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=/tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer --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 [2020-11-29 23:55:24,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:55:24,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:55:24,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:55:24,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:55:24,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:55:24,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:55:24,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:55:24,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:55:24,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:55:24,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:55:24,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:55:24,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:55:24,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:55:24,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:55:24,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:55:24,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:55:24,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:55:24,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:55:24,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:55:24,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:55:24,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:55:24,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:55:24,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:55:24,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:55:24,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:55:24,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:55:24,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:55:24,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:55:24,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:55:24,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:55:24,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:55:24,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:55:24,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:55:24,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:55:24,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:55:24,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:55:24,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:55:24,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:55:24,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:55:24,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:55:24,625 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:55:24,650 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:55:24,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:55:24,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:55:24,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:55:24,655 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:55:24,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:55:24,655 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:55:24,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:55:24,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:55:24,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:55:24,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:55:24,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:55:24,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:55:24,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:55:24,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:55:24,658 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:55:24,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:55:24,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:55:24,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:55:24,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:55:24,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:55:24,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:55:24,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:55:24,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:55:24,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:55:24,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:55:24,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:55:24,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:55:24,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:55:24,662 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:/tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2020-11-29 23:55:24,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:55:24,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:55:24,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:55:24,968 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:55:24,974 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:55:24,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-29 23:55:25,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/data/4f6c5a048/4c5a4eb04c044e2e80ea997e3edfefcc/FLAG83f731bfa [2020-11-29 23:55:25,466 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:55:25,467 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-29 23:55:25,488 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/data/4f6c5a048/4c5a4eb04c044e2e80ea997e3edfefcc/FLAG83f731bfa [2020-11-29 23:55:25,864 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/data/4f6c5a048/4c5a4eb04c044e2e80ea997e3edfefcc [2020-11-29 23:55:25,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:55:25,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:55:25,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:25,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:55:25,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:55:25,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:25" (1/1) ... [2020-11-29 23:55:25,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25513847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:25, skipping insertion in model container [2020-11-29 23:55:25,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:25" (1/1) ... [2020-11-29 23:55:25,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:55:25,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:55:26,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:26,177 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:55:26,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:26,248 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:55:26,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26 WrapperNode [2020-11-29 23:55:26,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:26,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:26,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:55:26,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:55:26,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:26,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:55:26,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:55:26,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:55:26,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... [2020-11-29 23:55:26,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:55:26,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:55:26,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:55:26,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:55:26,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:55:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:55:26,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:55:26,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 23:55:26,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:55:26,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 23:55:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:55:26,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:55:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:55:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:55:26,980 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:55:26,981 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-29 23:55:26,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:26 BoogieIcfgContainer [2020-11-29 23:55:26,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:55:26,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:55:26,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:55:26,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:55:26,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:55:25" (1/3) ... [2020-11-29 23:55:26,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60bce905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:55:26, skipping insertion in model container [2020-11-29 23:55:26,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:26" (2/3) ... [2020-11-29 23:55:26,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60bce905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:55:26, skipping insertion in model container [2020-11-29 23:55:26,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:26" (3/3) ... [2020-11-29 23:55:26,993 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2020-11-29 23:55:27,011 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:55:27,014 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:55:27,024 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:55:27,055 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:55:27,055 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:55:27,056 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:55:27,056 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:55:27,056 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:55:27,056 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:55:27,056 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:55:27,056 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:55:27,070 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-11-29 23:55:27,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 23:55:27,075 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:55:27,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:27,076 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:55:27,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:27,082 INFO L82 PathProgramCache]: Analyzing trace with hash 629078660, now seen corresponding path program 1 times [2020-11-29 23:55:27,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:27,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467241868] [2020-11-29 23:55:27,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:27,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:27,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467241868] [2020-11-29 23:55:27,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:55:27,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:55:27,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106496850] [2020-11-29 23:55:27,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:55:27,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:55:27,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:55:27,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:55:27,249 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2020-11-29 23:55:27,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:55:27,270 INFO L93 Difference]: Finished difference Result 100 states and 161 transitions. [2020-11-29 23:55:27,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:55:27,271 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-29 23:55:27,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:55:27,281 INFO L225 Difference]: With dead ends: 100 [2020-11-29 23:55:27,281 INFO L226 Difference]: Without dead ends: 47 [2020-11-29 23:55:27,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:55:27,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-29 23:55:27,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-29 23:55:27,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-29 23:55:27,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2020-11-29 23:55:27,318 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 11 [2020-11-29 23:55:27,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:55:27,318 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-11-29 23:55:27,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:55:27,318 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2020-11-29 23:55:27,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:55:27,319 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:55:27,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:27,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:55:27,319 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:55:27,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:27,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1648732847, now seen corresponding path program 1 times [2020-11-29 23:55:27,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:27,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985489970] [2020-11-29 23:55:27,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:27,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:27,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985489970] [2020-11-29 23:55:27,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:55:27,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:55:27,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181558382] [2020-11-29 23:55:27,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:55:27,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:55:27,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:55:27,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:55:27,386 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 3 states. [2020-11-29 23:55:27,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:55:27,439 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2020-11-29 23:55:27,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:55:27,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-29 23:55:27,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:55:27,441 INFO L225 Difference]: With dead ends: 87 [2020-11-29 23:55:27,442 INFO L226 Difference]: Without dead ends: 47 [2020-11-29 23:55:27,443 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 [2020-11-29 23:55:27,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-29 23:55:27,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-29 23:55:27,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-29 23:55:27,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2020-11-29 23:55:27,462 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2020-11-29 23:55:27,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:55:27,463 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2020-11-29 23:55:27,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:55:27,464 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2020-11-29 23:55:27,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 23:55:27,464 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:55:27,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:27,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:55:27,465 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:55:27,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:27,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1229314972, now seen corresponding path program 1 times [2020-11-29 23:55:27,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:27,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57884999] [2020-11-29 23:55:27,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:27,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:27,653 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:27,683 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:27,683 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 23:55:27,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 23:55:27,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:55:27 BoogieIcfgContainer [2020-11-29 23:55:27,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:55:27,757 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:55:27,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:55:27,758 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:55:27,758 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:26" (3/4) ... [2020-11-29 23:55:27,761 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:55:27,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:55:27,766 INFO L168 Benchmark]: Toolchain (without parser) took 1895.87 ms. Allocated memory is still 100.7 MB. Free memory was 69.6 MB in the beginning and 48.1 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:27,767 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 48.5 MB in the beginning and 48.5 MB in the end (delta: 24.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:27,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.18 ms. Allocated memory is still 100.7 MB. Free memory was 69.6 MB in the beginning and 75.5 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:27,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.93 ms. Allocated memory is still 100.7 MB. Free memory was 75.5 MB in the beginning and 73.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:27,778 INFO L168 Benchmark]: Boogie Preprocessor took 42.53 ms. Allocated memory is still 100.7 MB. Free memory was 73.4 MB in the beginning and 71.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:27,778 INFO L168 Benchmark]: RCFGBuilder took 625.81 ms. Allocated memory is still 100.7 MB. Free memory was 71.3 MB in the beginning and 42.8 MB in the end (delta: 28.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:27,780 INFO L168 Benchmark]: TraceAbstraction took 773.26 ms. Allocated memory is still 100.7 MB. Free memory was 42.4 MB in the beginning and 48.7 MB in the end (delta: -6.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:27,781 INFO L168 Benchmark]: Witness Printer took 4.73 ms. Allocated memory is still 100.7 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:27,788 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 48.5 MB in the beginning and 48.5 MB in the end (delta: 24.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 379.18 ms. Allocated memory is still 100.7 MB. Free memory was 69.6 MB in the beginning and 75.5 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.93 ms. Allocated memory is still 100.7 MB. Free memory was 75.5 MB in the beginning and 73.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.53 ms. Allocated memory is still 100.7 MB. Free memory was 73.4 MB in the beginning and 71.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 625.81 ms. Allocated memory is still 100.7 MB. Free memory was 71.3 MB in the beginning and 42.8 MB in the end (delta: 28.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 773.26 ms. Allocated memory is still 100.7 MB. Free memory was 42.4 MB in the beginning and 48.7 MB in the end (delta: -6.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.73 ms. Allocated memory is still 100.7 MB. Free memory is still 48.1 MB. 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: 0.1s, 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 [2020-11-29 23:55:30,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:55:30,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:55:30,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:55:30,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:55:30,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:55:30,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:55:30,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:55:30,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:55:30,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:55:30,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:55:30,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:55:30,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:55:30,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:55:30,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:55:30,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:55:30,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:55:30,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:55:30,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:55:30,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:55:30,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:55:30,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:55:30,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:55:30,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:55:30,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:55:30,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:55:30,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:55:30,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:55:30,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:55:30,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:55:30,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:55:30,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:55:30,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:55:30,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:55:30,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:55:30,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:55:30,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:55:30,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:55:30,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:55:30,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:55:30,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:55:30,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 23:55:30,362 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:55:30,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:55:30,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:55:30,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:55:30,364 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:55:30,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:55:30,364 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:55:30,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:55:30,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:55:30,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:55:30,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:55:30,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:55:30,365 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 23:55:30,365 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 23:55:30,366 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:55:30,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:55:30,366 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:55:30,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:55:30,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:55:30,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:55:30,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:55:30,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:55:30,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:55:30,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:55:30,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:55:30,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:55:30,368 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 23:55:30,368 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 23:55:30,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:55:30,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:55:30,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 23:55:30,369 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:/tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2020-11-29 23:55:30,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:55:30,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:55:30,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:55:30,838 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:55:30,839 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:55:30,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-29 23:55:30,926 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/data/2492b6e03/2384b739ce434708a62161d7bb17a855/FLAG3fc3a6701 [2020-11-29 23:55:31,471 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:55:31,471 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2020-11-29 23:55:31,489 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/data/2492b6e03/2384b739ce434708a62161d7bb17a855/FLAG3fc3a6701 [2020-11-29 23:55:31,825 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/data/2492b6e03/2384b739ce434708a62161d7bb17a855 [2020-11-29 23:55:31,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:55:31,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:55:31,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:31,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:55:31,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:55:31,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:31" (1/1) ... [2020-11-29 23:55:31,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6437e1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:31, skipping insertion in model container [2020-11-29 23:55:31,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:31" (1/1) ... [2020-11-29 23:55:31,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:55:31,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:55:32,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:32,158 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:55:32,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:32,271 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:55:32,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:32 WrapperNode [2020-11-29 23:55:32,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:32,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:32,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:55:32,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:55:32,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:32" (1/1) ... [2020-11-29 23:55:32,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:32" (1/1) ... [2020-11-29 23:55:32,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:32,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:55:32,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:55:32,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:55:32,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:32" (1/1) ... [2020-11-29 23:55:32,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:32" (1/1) ... [2020-11-29 23:55:32,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:32" (1/1) ... [2020-11-29 23:55:32,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:32" (1/1) ... [2020-11-29 23:55:32,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:32" (1/1) ... [2020-11-29 23:55:32,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:32" (1/1) ... [2020-11-29 23:55:32,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:32" (1/1) ... [2020-11-29 23:55:32,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:55:32,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:55:32,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:55:32,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:55:32,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:55:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 23:55:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:55:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 23:55:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 23:55:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:55:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:55:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 23:55:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 23:55:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:55:48,016 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:55:48,017 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-29 23:55:48,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:48 BoogieIcfgContainer [2020-11-29 23:55:48,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:55:48,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:55:48,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:55:48,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:55:48,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:55:31" (1/3) ... [2020-11-29 23:55:48,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e1cbe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:55:48, skipping insertion in model container [2020-11-29 23:55:48,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:32" (2/3) ... [2020-11-29 23:55:48,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e1cbe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:55:48, skipping insertion in model container [2020-11-29 23:55:48,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:48" (3/3) ... [2020-11-29 23:55:48,033 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2020-11-29 23:55:48,044 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:55:48,049 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:55:48,060 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:55:48,104 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:55:48,104 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:55:48,104 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:55:48,104 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:55:48,104 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:55:48,104 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:55:48,105 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:55:48,105 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:55:48,115 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-11-29 23:55:48,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 23:55:48,121 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:55:48,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:48,122 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:55:48,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:48,128 INFO L82 PathProgramCache]: Analyzing trace with hash 629078660, now seen corresponding path program 1 times [2020-11-29 23:55:48,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:55:48,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616396973] [2020-11-29 23:55:48,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 23:55:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:49,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 23:55:49,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:49,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:49,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:55:49,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:49,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616396973] [2020-11-29 23:55:49,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:55:49,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 23:55:49,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397568764] [2020-11-29 23:55:49,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:55:49,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:55:49,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:55:49,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:55:49,066 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2020-11-29 23:55:49,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:55:49,085 INFO L93 Difference]: Finished difference Result 100 states and 161 transitions. [2020-11-29 23:55:49,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:55:49,086 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-29 23:55:49,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:55:49,095 INFO L225 Difference]: With dead ends: 100 [2020-11-29 23:55:49,096 INFO L226 Difference]: Without dead ends: 47 [2020-11-29 23:55:49,098 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 [2020-11-29 23:55:49,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-29 23:55:49,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-29 23:55:49,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-29 23:55:49,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2020-11-29 23:55:49,140 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 11 [2020-11-29 23:55:49,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:55:49,140 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-11-29 23:55:49,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:55:49,141 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2020-11-29 23:55:49,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:55:49,141 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:55:49,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:49,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 23:55:49,365 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:55:49,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:49,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1648732847, now seen corresponding path program 1 times [2020-11-29 23:55:49,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:55:49,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056627560] [2020-11-29 23:55:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 23:55:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:50,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:55:50,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:50,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:50,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:55:50,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:50,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056627560] [2020-11-29 23:55:50,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:55:50,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-29 23:55:50,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103212602] [2020-11-29 23:55:50,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:55:50,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:55:50,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:55:50,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:55:50,118 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 3 states. [2020-11-29 23:55:50,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:55:50,156 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2020-11-29 23:55:50,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:55:50,157 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-29 23:55:50,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:55:50,158 INFO L225 Difference]: With dead ends: 87 [2020-11-29 23:55:50,159 INFO L226 Difference]: Without dead ends: 47 [2020-11-29 23:55:50,160 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 [2020-11-29 23:55:50,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-29 23:55:50,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-29 23:55:50,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-29 23:55:50,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2020-11-29 23:55:50,167 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2020-11-29 23:55:50,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:55:50,168 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2020-11-29 23:55:50,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:55:50,168 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2020-11-29 23:55:50,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 23:55:50,169 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:55:50,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:50,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 23:55:50,377 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:55:50,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:50,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1229314972, now seen corresponding path program 1 times [2020-11-29 23:55:50,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:55:50,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340363343] [2020-11-29 23:55:50,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 23:55:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:51,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:55:51,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:51,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:51,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:55:51,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:51,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340363343] [2020-11-29 23:55:51,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:55:51,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-29 23:55:51,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405151684] [2020-11-29 23:55:51,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 23:55:51,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:55:51,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 23:55:51,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-29 23:55:51,601 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand 10 states. [2020-11-29 23:55:52,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:55:52,496 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2020-11-29 23:55:52,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:55:52,557 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-11-29 23:55:52,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:55:52,557 INFO L225 Difference]: With dead ends: 52 [2020-11-29 23:55:52,557 INFO L226 Difference]: Without dead ends: 18 [2020-11-29 23:55:52,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-11-29 23:55:52,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-29 23:55:52,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-29 23:55:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-29 23:55:52,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-11-29 23:55:52,562 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-11-29 23:55:52,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:55:52,563 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-11-29 23:55:52,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 23:55:52,563 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-11-29 23:55:52,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 23:55:52,563 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:55:52,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:55:52,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 23:55:52,764 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:55:52,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:52,765 INFO L82 PathProgramCache]: Analyzing trace with hash -616191433, now seen corresponding path program 1 times [2020-11-29 23:55:52,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:55:52,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415673623] [2020-11-29 23:55:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 23:55:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:53,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 23:55:53,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:53,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:53,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:55:55,840 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-11-29 23:55:55,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:55,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415673623] [2020-11-29 23:55:55,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:55:55,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-29 23:55:55,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455490665] [2020-11-29 23:55:55,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 23:55:55,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:55:55,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 23:55:55,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-29 23:55:55,855 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 10 states. [2020-11-29 23:55:56,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:55:56,728 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-11-29 23:55:56,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:55:56,728 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-11-29 23:55:56,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:55:56,728 INFO L225 Difference]: With dead ends: 18 [2020-11-29 23:55:56,729 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:55:56,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-29 23:55:56,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:55:56,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:55:56,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:55:56,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:55:56,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-29 23:55:56,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:55:56,730 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:55:56,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 23:55:56,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:55:56,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:55:56,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 23:55:56,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 23:55:57,264 INFO L274 CegarLoopResult]: For program point L93(lines 93 96) no Hoare annotation was computed. [2020-11-29 23:55:57,264 INFO L274 CegarLoopResult]: For program point L60(lines 60 65) no Hoare annotation was computed. [2020-11-29 23:55:57,264 INFO L274 CegarLoopResult]: For program point L118(lines 118 119) no Hoare annotation was computed. [2020-11-29 23:55:57,264 INFO L274 CegarLoopResult]: For program point L85(lines 85 97) no Hoare annotation was computed. [2020-11-29 23:55:57,265 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)))) [2020-11-29 23:55:57,265 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 23:55:57,265 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 23:55:57,265 INFO L274 CegarLoopResult]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2020-11-29 23:55:57,265 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 23:55:57,265 INFO L270 CegarLoopResult]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2020-11-29 23:55:57,265 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 23:55:57,265 INFO L274 CegarLoopResult]: For program point L152-1(lines 152 156) no Hoare annotation was computed. [2020-11-29 23:55:57,266 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)))) [2020-11-29 23:55:57,266 INFO L274 CegarLoopResult]: For program point L152-3(lines 152 156) no Hoare annotation was computed. [2020-11-29 23:55:57,266 INFO L274 CegarLoopResult]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2020-11-29 23:55:57,266 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)))) [2020-11-29 23:55:57,266 INFO L274 CegarLoopResult]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2020-11-29 23:55:57,266 INFO L274 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-11-29 23:55:57,266 INFO L274 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-11-29 23:55:57,266 INFO L274 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-11-29 23:55:57,266 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-29 23:55:57,267 INFO L274 CegarLoopResult]: For program point L170-2(lines 170 179) no Hoare annotation was computed. [2020-11-29 23:55:57,267 INFO L274 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2020-11-29 23:55:57,268 INFO L270 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2020-11-29 23:55:57,268 INFO L274 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2020-11-29 23:55:57,269 INFO L274 CegarLoopResult]: For program point L170-4(lines 170 179) no Hoare annotation was computed. [2020-11-29 23:55:57,269 INFO L270 CegarLoopResult]: At program point L96(lines 22 98) the Hoare annotation is: false [2020-11-29 23:55:57,269 INFO L274 CegarLoopResult]: For program point L39(lines 39 47) no Hoare annotation was computed. [2020-11-29 23:55:57,271 INFO L274 CegarLoopResult]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2020-11-29 23:55:57,271 INFO L274 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-11-29 23:55:57,271 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)))) [2020-11-29 23:55:57,272 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 23:55:57,273 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 23:55:57,273 INFO L277 CegarLoopResult]: At program point L181(lines 161 182) the Hoare annotation is: true [2020-11-29 23:55:57,276 INFO L274 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-11-29 23:55:57,276 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 23:55:57,276 INFO L274 CegarLoopResult]: For program point L124(lines 124 132) no Hoare annotation was computed. [2020-11-29 23:55:57,276 INFO L274 CegarLoopResult]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2020-11-29 23:55:57,276 INFO L274 CegarLoopResult]: For program point L58(lines 58 74) no Hoare annotation was computed. [2020-11-29 23:55:57,277 INFO L274 CegarLoopResult]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2020-11-29 23:55:57,277 INFO L270 CegarLoopResult]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2020-11-29 23:55:57,277 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)))) [2020-11-29 23:55:57,277 INFO L274 CegarLoopResult]: For program point L59(lines 59 66) no Hoare annotation was computed. [2020-11-29 23:55:57,277 INFO L274 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2020-11-29 23:55:57,277 INFO L270 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2020-11-29 23:55:57,278 INFO L274 CegarLoopResult]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2020-11-29 23:55:57,278 INFO L274 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-11-29 23:55:57,278 INFO L270 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2020-11-29 23:55:57,278 INFO L274 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-11-29 23:55:57,279 INFO L274 CegarLoopResult]: For program point L175(lines 175 178) no Hoare annotation was computed. [2020-11-29 23:55:57,279 INFO L274 CegarLoopResult]: For program point L68(lines 68 73) no Hoare annotation was computed. [2020-11-29 23:55:57,279 INFO L274 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-11-29 23:55:57,289 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,290 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,293 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,294 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,297 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,308 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,309 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,313 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,314 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,316 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,317 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,318 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,319 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,322 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,322 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,327 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,334 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,334 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,336 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,337 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:55:57 BoogieIcfgContainer [2020-11-29 23:55:57,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:55:57,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:55:57,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:55:57,340 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:55:57,340 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:48" (3/4) ... [2020-11-29 23:55:57,344 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:55:57,360 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2020-11-29 23:55:57,361 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-29 23:55:57,361 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:55:57,362 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:55:57,390 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()) [2020-11-29 23:55:57,390 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()) [2020-11-29 23:55:57,391 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()) [2020-11-29 23:55:57,392 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()) [2020-11-29 23:55:57,392 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()) [2020-11-29 23:55:57,448 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7885a26f-5544-421d-8720-27db8fa12f2e/bin/uautomizer/witness.graphml [2020-11-29 23:55:57,448 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:55:57,449 INFO L168 Benchmark]: Toolchain (without parser) took 25617.32 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 40.5 MB in the beginning and 38.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:57,450 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 60.8 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:57,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.84 ms. Allocated memory is still 60.8 MB. Free memory was 40.3 MB in the beginning and 41.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:57,451 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.61 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 39.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:57,451 INFO L168 Benchmark]: Boogie Preprocessor took 83.50 ms. Allocated memory is still 60.8 MB. Free memory was 39.0 MB in the beginning and 36.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:57,452 INFO L168 Benchmark]: RCFGBuilder took 15607.10 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 36.7 MB in the beginning and 56.8 MB in the end (delta: -20.1 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:57,452 INFO L168 Benchmark]: TraceAbstraction took 9318.75 ms. Allocated memory is still 75.5 MB. Free memory was 56.4 MB in the beginning and 45.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 28.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:57,453 INFO L168 Benchmark]: Witness Printer took 109.09 ms. Allocated memory is still 75.5 MB. Free memory was 45.0 MB in the beginning and 38.7 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:57,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 60.8 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 437.84 ms. Allocated memory is still 60.8 MB. Free memory was 40.3 MB in the beginning and 41.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.61 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 39.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.50 ms. Allocated memory is still 60.8 MB. Free memory was 39.0 MB in the beginning and 36.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 15607.10 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 36.7 MB in the beginning and 56.8 MB in the end (delta: -20.1 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9318.75 ms. Allocated memory is still 75.5 MB. Free memory was 56.4 MB in the beginning and 45.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 28.1 MB. Max. memory is 16.1 GB. * Witness Printer took 109.09 ms. Allocated memory is still 75.5 MB. Free memory was 45.0 MB in the beginning and 38.7 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation 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 [2020-11-29 23:55:57,466 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,466 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,467 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,467 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,467 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,468 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,468 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,468 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,468 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,469 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,469 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 [2020-11-29 23:55:57,470 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,470 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,471 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,471 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,471 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,471 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,471 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 [2020-11-29 23:55:57,472 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,473 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,473 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,473 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,473 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,474 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,474 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,474 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,474 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 [2020-11-29 23:55:57,475 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,476 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,476 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,476 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,476 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,477 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,477 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,477 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,477 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,478 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,478 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 [2020-11-29 23:55:57,479 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,479 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,480 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_6,QUANTIFIED] [2020-11-29 23:55:57,480 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:55:57,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:55:57,480 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: 8.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.9s, 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, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.2s 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, 2.7s SatisfiabilityAnalysisTime, 2.9s 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...