./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.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_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/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 b63437a4b9cab392a78c715a8db6f3cff5d71cf5 ........................................................................................................................................................................................................................................................................................ 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_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/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 b63437a4b9cab392a78c715a8db6f3cff5d71cf5 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:18:50,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:18:50,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:18:50,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:18:50,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:18:50,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:18:50,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:18:50,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:18:50,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:18:50,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:18:50,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:18:50,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:18:50,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:18:50,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:18:50,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:18:50,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:18:50,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:18:50,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:18:50,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:18:50,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:18:50,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:18:50,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:18:50,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:18:50,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:18:50,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:18:50,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:18:50,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:18:50,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:18:50,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:18:50,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:18:50,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:18:50,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:18:50,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:18:50,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:18:50,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:18:50,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:18:50,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:18:50,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:18:50,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:18:50,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:18:50,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:18:50,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:18:50,867 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:18:50,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:18:50,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:18:50,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:18:50,870 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:18:50,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:18:50,871 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:18:50,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:18:50,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:18:50,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:18:50,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:18:50,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:18:50,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:18:50,875 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:18:50,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:18:50,875 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:18:50,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:18:50,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:18:50,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:18:50,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:18:50,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:18:50,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:18:50,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:18:50,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:18:50,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:18:50,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:18:50,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:18:50,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:18:50,879 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:18:50,879 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_5272c291-991a-40c9-924a-30547f3bfbb0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63437a4b9cab392a78c715a8db6f3cff5d71cf5 [2020-11-28 03:18:51,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:18:51,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:18:51,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:18:51,286 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:18:51,288 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:18:51,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-11-28 03:18:51,398 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/data/fbe2242c2/8880066be4a94a98be496b0f9943b983/FLAGb2b73072c [2020-11-28 03:18:52,069 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:18:52,072 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-11-28 03:18:52,084 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/data/fbe2242c2/8880066be4a94a98be496b0f9943b983/FLAGb2b73072c [2020-11-28 03:18:52,401 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/data/fbe2242c2/8880066be4a94a98be496b0f9943b983 [2020-11-28 03:18:52,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:18:52,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:18:52,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:52,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:18:52,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:18:52,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364411c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52, skipping insertion in model container [2020-11-28 03:18:52,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:18:52,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:18:52,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:52,667 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:18:52,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:52,716 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:18:52,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52 WrapperNode [2020-11-28 03:18:52,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:52,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:52,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:18:52,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:18:52,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:52,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:18:52,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:18:52,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:18:52,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:18:52,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:18:52,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:18:52,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:18:52,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/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 [2020-11-28 03:18:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:18:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:18:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 03:18:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:18:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 03:18:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:18:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:18:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:18:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:18:53,517 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:18:53,518 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 03:18:53,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:53 BoogieIcfgContainer [2020-11-28 03:18:53,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:18:53,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:18:53,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:18:53,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:18:53,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:18:52" (1/3) ... [2020-11-28 03:18:53,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d2fbe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:53, skipping insertion in model container [2020-11-28 03:18:53,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (2/3) ... [2020-11-28 03:18:53,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d2fbe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:53, skipping insertion in model container [2020-11-28 03:18:53,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:53" (3/3) ... [2020-11-28 03:18:53,530 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2020-11-28 03:18:53,548 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:18:53,554 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:18:53,569 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:18:53,613 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:18:53,613 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:18:53,614 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:18:53,614 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:18:53,614 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:18:53,614 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:18:53,615 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:18:53,615 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:18:53,634 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-28 03:18:53,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:18:53,642 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:53,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:53,643 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:53,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:53,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2020-11-28 03:18:53,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:53,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239409888] [2020-11-28 03:18:53,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:53,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:53,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239409888] [2020-11-28 03:18:53,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:53,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:18:53,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231143890] [2020-11-28 03:18:53,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:18:53,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:53,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:18:53,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:18:53,905 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-11-28 03:18:53,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:53,927 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-11-28 03:18:53,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:18:53,929 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 03:18:53,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:53,942 INFO L225 Difference]: With dead ends: 49 [2020-11-28 03:18:53,942 INFO L226 Difference]: Without dead ends: 22 [2020-11-28 03:18:53,946 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 [2020-11-28 03:18:53,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-28 03:18:53,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-28 03:18:53,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 03:18:53,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-11-28 03:18:53,989 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2020-11-28 03:18:53,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:53,989 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-11-28 03:18:53,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:18:53,990 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-11-28 03:18:53,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:18:53,991 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:53,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:53,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:18:53,992 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:53,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:53,993 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2020-11-28 03:18:53,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:53,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306960565] [2020-11-28 03:18:53,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:18:54,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:18:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:18:54,103 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:18:54,141 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:18:54,141 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:18:54,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:18:54,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:18:54 BoogieIcfgContainer [2020-11-28 03:18:54,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:18:54,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:18:54,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:18:54,177 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:18:54,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:53" (3/4) ... [2020-11-28 03:18:54,182 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:18:54,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:18:54,185 INFO L168 Benchmark]: Toolchain (without parser) took 1777.51 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 75.7 MB in the beginning and 96.8 MB in the end (delta: -21.1 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:54,185 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 102.8 MB. Free memory is still 62.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:54,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.08 ms. Allocated memory is still 102.8 MB. Free memory was 75.5 MB in the beginning and 79.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:54,188 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.30 ms. Allocated memory is still 102.8 MB. Free memory was 79.2 MB in the beginning and 77.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:54,189 INFO L168 Benchmark]: Boogie Preprocessor took 55.90 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 76.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:54,190 INFO L168 Benchmark]: RCFGBuilder took 669.13 ms. Allocated memory is still 102.8 MB. Free memory was 76.0 MB in the beginning and 58.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:54,191 INFO L168 Benchmark]: TraceAbstraction took 653.25 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 58.4 MB in the beginning and 97.3 MB in the end (delta: -38.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:54,192 INFO L168 Benchmark]: Witness Printer took 6.07 ms. Allocated memory is still 132.1 MB. Free memory is still 96.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:54,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 102.8 MB. Free memory is still 62.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 310.08 ms. Allocated memory is still 102.8 MB. Free memory was 75.5 MB in the beginning and 79.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.30 ms. Allocated memory is still 102.8 MB. Free memory was 79.2 MB in the beginning and 77.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.90 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 76.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 669.13 ms. Allocated memory is still 102.8 MB. Free memory was 76.0 MB in the beginning and 58.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 653.25 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 58.4 MB in the beginning and 97.3 MB in the end (delta: -38.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.07 ms. Allocated memory is still 132.1 MB. Free memory is still 96.8 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 81, overapproximation of bitwiseAnd at line 25, overapproximation of someUnaryFLOAToperation at line 77, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L77] float x = -0.0f; [L15] __uint32_t w; [L17] int exponent_less_127; [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (w) = gf_u.word [L25] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L27] COND FALSE !(exponent_less_127 < 23) [L43] COND TRUE exponent_less_127 == 128 [L45] return x + x; [L78] float res = round_float(x); [L81] EXPR res == -0.0f && __signbit_float(res) == 1 [L81] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_1032b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:18:57,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:18:57,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:18:57,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:18:57,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:18:57,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:18:57,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:18:57,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:18:57,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:18:57,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:18:57,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:18:57,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:18:57,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:18:57,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:18:57,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:18:57,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:18:57,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:18:57,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:18:57,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:18:57,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:18:57,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:18:57,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:18:57,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:18:57,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:18:57,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:18:57,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:18:57,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:18:57,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:18:57,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:18:57,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:18:57,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:18:57,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:18:57,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:18:57,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:18:57,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:18:57,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:18:57,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:18:57,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:18:57,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:18:57,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:18:57,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:18:57,347 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 03:18:57,404 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:18:57,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:18:57,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:18:57,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:18:57,409 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:18:57,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:18:57,410 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:18:57,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:18:57,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:18:57,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:18:57,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:18:57,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:18:57,412 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:18:57,413 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:18:57,413 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:18:57,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:18:57,413 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:18:57,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:18:57,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:18:57,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:18:57,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:18:57,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:18:57,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:18:57,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:18:57,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:18:57,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:18:57,416 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:18:57,416 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:18:57,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:18:57,417 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:18:57,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:18:57,417 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_5272c291-991a-40c9-924a-30547f3bfbb0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63437a4b9cab392a78c715a8db6f3cff5d71cf5 [2020-11-28 03:18:57,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:18:57,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:18:57,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:18:57,978 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:18:57,979 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:18:57,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-11-28 03:18:58,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/data/c781b57bf/be6c7cfc328b42739a9529e193aed725/FLAGa214dfc94 [2020-11-28 03:18:58,678 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:18:58,681 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-11-28 03:18:58,690 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/data/c781b57bf/be6c7cfc328b42739a9529e193aed725/FLAGa214dfc94 [2020-11-28 03:18:59,002 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/data/c781b57bf/be6c7cfc328b42739a9529e193aed725 [2020-11-28 03:18:59,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:18:59,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:18:59,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:59,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:18:59,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:18:59,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:59" (1/1) ... [2020-11-28 03:18:59,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4571fcea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:59, skipping insertion in model container [2020-11-28 03:18:59,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:59" (1/1) ... [2020-11-28 03:18:59,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:18:59,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:18:59,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:59,264 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:18:59,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:59,313 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:18:59,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:59 WrapperNode [2020-11-28 03:18:59,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:59,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:59,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:18:59,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:18:59,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:59" (1/1) ... [2020-11-28 03:18:59,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:59" (1/1) ... [2020-11-28 03:18:59,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:59,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:18:59,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:18:59,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:18:59,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:59" (1/1) ... [2020-11-28 03:18:59,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:59" (1/1) ... [2020-11-28 03:18:59,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:59" (1/1) ... [2020-11-28 03:18:59,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:59" (1/1) ... [2020-11-28 03:18:59,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:59" (1/1) ... [2020-11-28 03:18:59,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:59" (1/1) ... [2020-11-28 03:18:59,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:59" (1/1) ... [2020-11-28 03:18:59,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:18:59,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:18:59,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:18:59,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:18:59,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/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 [2020-11-28 03:18:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:18:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:18:59,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-28 03:18:59,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 03:18:59,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:18:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:18:59,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-28 03:18:59,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 03:18:59,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:19:00,207 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:00,208 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 03:19:00,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:00 BoogieIcfgContainer [2020-11-28 03:19:00,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:00,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:19:00,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:19:00,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:19:00,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:18:59" (1/3) ... [2020-11-28 03:19:00,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dee53ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:00, skipping insertion in model container [2020-11-28 03:19:00,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:59" (2/3) ... [2020-11-28 03:19:00,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dee53ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:00, skipping insertion in model container [2020-11-28 03:19:00,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:00" (3/3) ... [2020-11-28 03:19:00,224 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2020-11-28 03:19:00,238 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:19:00,244 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:19:00,258 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:19:00,304 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:19:00,305 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:19:00,305 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:19:00,306 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:00,306 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:00,306 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:19:00,306 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:00,306 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:19:00,325 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-28 03:19:00,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:19:00,335 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:00,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:00,336 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:00,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:00,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2020-11-28 03:19:00,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:19:00,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038106862] [2020-11-28 03:19:00,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/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 [2020-11-28 03:19:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:00,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 03:19:00,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:00,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:00,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:19:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:00,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038106862] [2020-11-28 03:19:00,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:00,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 03:19:00,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926604026] [2020-11-28 03:19:00,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:19:00,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:19:00,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:19:00,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:19:00,618 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-11-28 03:19:00,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:00,654 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-11-28 03:19:00,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:19:00,656 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 03:19:00,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:00,669 INFO L225 Difference]: With dead ends: 49 [2020-11-28 03:19:00,669 INFO L226 Difference]: Without dead ends: 22 [2020-11-28 03:19:00,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:19:00,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-28 03:19:00,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-28 03:19:00,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 03:19:00,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-11-28 03:19:00,717 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2020-11-28 03:19:00,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:00,718 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-11-28 03:19:00,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:19:00,719 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-11-28 03:19:00,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:19:00,720 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:00,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:00,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:19:00,934 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:00,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:00,935 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2020-11-28 03:19:00,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:19:00,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515721790] [2020-11-28 03:19:00,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/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 [2020-11-28 03:19:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:01,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:19:01,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:01,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:01,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:19:01,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:01,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515721790] [2020-11-28 03:19:01,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:01,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-28 03:19:01,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358482525] [2020-11-28 03:19:01,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:19:01,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:19:01,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:19:01,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:19:01,309 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 8 states. [2020-11-28 03:19:01,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:01,460 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2020-11-28 03:19:01,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:19:01,461 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-28 03:19:01,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:01,462 INFO L225 Difference]: With dead ends: 34 [2020-11-28 03:19:01,462 INFO L226 Difference]: Without dead ends: 20 [2020-11-28 03:19:01,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:19:01,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-28 03:19:01,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-28 03:19:01,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-28 03:19:01,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-28 03:19:01,470 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2020-11-28 03:19:01,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:01,470 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-28 03:19:01,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:19:01,471 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-28 03:19:01,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:19:01,471 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:01,472 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:01,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 03:19:01,684 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:01,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:01,685 INFO L82 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2020-11-28 03:19:01,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:19:01,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233322508] [2020-11-28 03:19:01,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/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 [2020-11-28 03:19:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:01,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:19:01,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:02,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:19:02,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:02,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233322508] [2020-11-28 03:19:02,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:02,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-28 03:19:02,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858787460] [2020-11-28 03:19:02,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:19:02,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:19:02,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:19:02,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:19:02,153 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2020-11-28 03:19:02,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:02,431 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-11-28 03:19:02,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:19:02,432 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-11-28 03:19:02,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:02,433 INFO L225 Difference]: With dead ends: 23 [2020-11-28 03:19:02,434 INFO L226 Difference]: Without dead ends: 20 [2020-11-28 03:19:02,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:19:02,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-28 03:19:02,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-28 03:19:02,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-28 03:19:02,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-11-28 03:19:02,441 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2020-11-28 03:19:02,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:02,441 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-11-28 03:19:02,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:19:02,441 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-11-28 03:19:02,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:19:02,442 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:02,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:02,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 03:19:02,643 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:02,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:02,644 INFO L82 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2020-11-28 03:19:02,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:19:02,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551844607] [2020-11-28 03:19:02,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/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 [2020-11-28 03:19:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:02,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-28 03:19:02,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:02,873 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:19:02,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:02,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:19:03,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:03,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551844607] [2020-11-28 03:19:03,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:03,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 17 [2020-11-28 03:19:03,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804858533] [2020-11-28 03:19:03,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-28 03:19:03,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:19:03,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-28 03:19:03,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-11-28 03:19:03,563 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 17 states. [2020-11-28 03:19:03,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:03,982 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2020-11-28 03:19:03,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:19:03,984 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2020-11-28 03:19:03,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:03,985 INFO L225 Difference]: With dead ends: 20 [2020-11-28 03:19:03,985 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:19:03,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2020-11-28 03:19:03,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:19:03,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:19:03,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:19:03,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:19:03,987 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-11-28 03:19:03,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:03,987 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:03,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-28 03:19:03,988 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:19:03,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:19:04,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 03:19:04,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:19:04,415 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2020-11-28 03:19:04,572 INFO L274 CegarLoopResult]: For program point L27(lines 27 48) no Hoare annotation was computed. [2020-11-28 03:19:04,572 INFO L274 CegarLoopResult]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2020-11-28 03:19:04,573 INFO L270 CegarLoopResult]: At program point L60-2(lines 60 64) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))))) (= |ULTIMATE.start_round_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start_round_float_~x .cse0) |ULTIMATE.start_main_#t~short15|)) [2020-11-28 03:19:04,573 INFO L274 CegarLoopResult]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2020-11-28 03:19:04,573 INFO L274 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2020-11-28 03:19:04,573 INFO L270 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (= ULTIMATE.start_round_float_~x (fp.neg (_ +zero 8 24))) [2020-11-28 03:19:04,573 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-11-28 03:19:04,574 INFO L274 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2020-11-28 03:19:04,574 INFO L274 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-11-28 03:19:04,574 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:19:04,574 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 03:19:04,574 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:19:04,574 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:19:04,574 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:19:04,574 INFO L274 CegarLoopResult]: For program point L28(lines 28 41) no Hoare annotation was computed. [2020-11-28 03:19:04,575 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:19:04,575 INFO L277 CegarLoopResult]: At program point L86(lines 69 87) the Hoare annotation is: true [2020-11-28 03:19:04,575 INFO L274 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2020-11-28 03:19:04,575 INFO L274 CegarLoopResult]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2020-11-28 03:19:04,575 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2020-11-28 03:19:04,576 INFO L270 CegarLoopResult]: At program point L66(lines 57 67) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))))) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start_round_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start_round_float_~x .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) |ULTIMATE.start_main_#t~short15|)) [2020-11-28 03:19:04,576 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:19:04,576 INFO L270 CegarLoopResult]: At program point L54(lines 14 55) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))))) (= |ULTIMATE.start_round_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= ULTIMATE.start_round_float_~x .cse0))) [2020-11-28 03:19:04,576 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-11-28 03:19:04,576 INFO L274 CegarLoopResult]: For program point L43(lines 43 47) no Hoare annotation was computed. [2020-11-28 03:19:04,576 INFO L274 CegarLoopResult]: For program point L35(lines 35 37) no Hoare annotation was computed. [2020-11-28 03:19:04,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,589 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,590 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,590 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,601 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,602 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,603 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,607 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,609 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,610 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,610 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,610 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,613 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,613 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,614 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,614 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,632 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,633 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,633 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,634 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:19:04 BoogieIcfgContainer [2020-11-28 03:19:04,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:19:04,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:04,638 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:04,639 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:04,639 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:00" (3/4) ... [2020-11-28 03:19:04,643 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:19:04,665 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-28 03:19:04,666 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 03:19:04,667 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:19:04,667 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:19:04,700 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-11-28 03:19:04,702 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-11-28 03:19:04,704 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-11-28 03:19:04,751 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5272c291-991a-40c9-924a-30547f3bfbb0/bin/uautomizer/witness.graphml [2020-11-28 03:19:04,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:04,753 INFO L168 Benchmark]: Toolchain (without parser) took 5743.03 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 26.9 MB in the beginning and 30.8 MB in the end (delta: -3.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:04,756 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 32.0 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:04,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.79 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 29.5 MB in the end (delta: -2.8 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:04,758 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.63 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 29.5 MB in the beginning and 44.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:04,758 INFO L168 Benchmark]: Boogie Preprocessor took 61.57 ms. Allocated memory is still 60.8 MB. Free memory was 43.8 MB in the beginning and 42.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:04,759 INFO L168 Benchmark]: RCFGBuilder took 758.81 ms. Allocated memory is still 60.8 MB. Free memory was 42.2 MB in the beginning and 40.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:04,759 INFO L168 Benchmark]: TraceAbstraction took 4422.15 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 39.5 MB in the beginning and 34.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:04,760 INFO L168 Benchmark]: Witness Printer took 113.70 ms. Allocated memory is still 73.4 MB. Free memory was 34.5 MB in the beginning and 30.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:04,765 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 32.0 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 301.79 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 29.5 MB in the end (delta: -2.8 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.63 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 29.5 MB in the beginning and 44.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.57 ms. Allocated memory is still 60.8 MB. Free memory was 43.8 MB in the beginning and 42.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 758.81 ms. Allocated memory is still 60.8 MB. Free memory was 42.2 MB in the beginning and 40.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4422.15 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 39.5 MB in the beginning and 34.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. * Witness Printer took 113.70 ms. Allocated memory is still 73.4 MB. Free memory was 34.5 MB in the beginning and 30.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] * 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: 60]: Loop Invariant [2020-11-28 03:19:04,778 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,779 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,779 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,779 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,780 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux - InvariantResult [Line: 14]: Loop Invariant [2020-11-28 03:19:04,784 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,785 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,785 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,785 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,786 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,786 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,786 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,787 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 57]: Loop Invariant [2020-11-28 03:19:04,790 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,791 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,798 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,798 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,798 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-28 03:19:04,799 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 163 SDslu, 63 SDs, 0 SdLazy, 89 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 158 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 47 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 19 QuantifiedInterpolants, 10036 SizeOfPredicates, 25 NumberOfNonLiveVariables, 206 ConjunctsInSsa, 34 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...