./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.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_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/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 01f5d92913440f76bf2a724738adcdb83e463632 ..................................................................................................................................................................................................................................................................................................................... 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_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/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 01f5d92913440f76bf2a724738adcdb83e463632 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:05:50,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:05:50,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:05:50,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:05:50,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:05:50,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:05:50,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:05:50,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:05:50,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:05:50,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:05:50,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:05:50,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:05:50,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:05:50,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:05:50,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:05:50,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:05:50,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:05:50,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:05:50,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:05:50,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:05:50,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:05:50,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:05:50,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:05:50,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:05:50,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:05:50,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:05:50,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:05:50,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:05:50,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:05:50,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:05:50,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:05:50,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:05:50,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:05:50,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:05:50,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:05:50,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:05:50,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:05:50,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:05:50,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:05:50,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:05:50,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:05:50,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:05:50,332 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:05:50,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:05:50,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:05:50,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:05:50,334 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:05:50,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:05:50,335 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:05:50,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:05:50,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:05:50,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:05:50,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:05:50,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:05:50,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:05:50,337 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:05:50,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:05:50,337 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:05:50,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:05:50,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:05:50,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:05:50,338 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:05:50,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:05:50,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:05:50,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:05:50,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:05:50,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:05:50,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:05:50,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:05:50,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:05:50,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:05:50,340 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_835e1ce4-a083-451a-b9b9-9ba6ed370e46/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01f5d92913440f76bf2a724738adcdb83e463632 [2020-11-29 22:05:50,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:05:50,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:05:50,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:05:50,644 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:05:50,652 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:05:50,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-11-29 22:05:50,735 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/data/4d5e8d669/2c500cf5bb5348c1b4d812359fa4998d/FLAG1ac4b4526 [2020-11-29 22:05:51,195 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:05:51,195 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-11-29 22:05:51,202 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/data/4d5e8d669/2c500cf5bb5348c1b4d812359fa4998d/FLAG1ac4b4526 [2020-11-29 22:05:51,574 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/data/4d5e8d669/2c500cf5bb5348c1b4d812359fa4998d [2020-11-29 22:05:51,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:05:51,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:05:51,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:05:51,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:05:51,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:05:51,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:05:51" (1/1) ... [2020-11-29 22:05:51,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48602c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:51, skipping insertion in model container [2020-11-29 22:05:51,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:05:51" (1/1) ... [2020-11-29 22:05:51,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:05:51,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:05:51,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:05:51,902 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:05:51,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:05:51,994 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:05:51,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:51 WrapperNode [2020-11-29 22:05:51,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:05:51,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:05:51,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:05:51,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:05:52,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:51" (1/1) ... [2020-11-29 22:05:52,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:51" (1/1) ... [2020-11-29 22:05:52,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:05:52,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:05:52,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:05:52,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:05:52,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:51" (1/1) ... [2020-11-29 22:05:52,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:51" (1/1) ... [2020-11-29 22:05:52,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:51" (1/1) ... [2020-11-29 22:05:52,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:51" (1/1) ... [2020-11-29 22:05:52,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:51" (1/1) ... [2020-11-29 22:05:52,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:51" (1/1) ... [2020-11-29 22:05:52,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:51" (1/1) ... [2020-11-29 22:05:52,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:05:52,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:05:52,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:05:52,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:05:52,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:05:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:05:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:05:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 22:05:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 22:05:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 22:05:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:05:52,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:05:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 22:05:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-29 22:05:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:05:52,714 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:05:52,714 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 22:05:52,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:05:52 BoogieIcfgContainer [2020-11-29 22:05:52,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:05:52,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:05:52,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:05:52,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:05:52,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:05:51" (1/3) ... [2020-11-29 22:05:52,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3bab87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:05:52, skipping insertion in model container [2020-11-29 22:05:52,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:51" (2/3) ... [2020-11-29 22:05:52,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d3bab87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:05:52, skipping insertion in model container [2020-11-29 22:05:52,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:05:52" (3/3) ... [2020-11-29 22:05:52,725 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2020-11-29 22:05:52,735 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:05:52,739 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:05:52,749 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 22:05:52,772 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:05:52,772 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:05:52,773 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:05:52,773 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:05:52,773 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:05:52,773 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:05:52,773 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:05:52,774 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:05:52,786 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-29 22:05:52,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:05:52,792 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:05:52,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:05:52,793 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:05:52,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:05:52,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2020-11-29 22:05:52,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:05:52,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788969639] [2020-11-29 22:05:52,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:05:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:05:53,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:05:53,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788969639] [2020-11-29 22:05:53,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:05:53,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:05:53,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368085651] [2020-11-29 22:05:53,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:05:53,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:05:53,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:05:53,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:05:53,077 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-29 22:05:53,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:05:53,100 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-11-29 22:05:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:05:53,101 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 22:05:53,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:05:53,120 INFO L225 Difference]: With dead ends: 65 [2020-11-29 22:05:53,121 INFO L226 Difference]: Without dead ends: 30 [2020-11-29 22:05:53,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:05:53,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-29 22:05:53,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-29 22:05:53,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 22:05:53,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-11-29 22:05:53,153 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2020-11-29 22:05:53,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:05:53,153 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-29 22:05:53,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:05:53,153 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-11-29 22:05:53,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:05:53,154 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:05:53,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:05:53,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:05:53,154 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:05:53,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:05:53,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2020-11-29 22:05:53,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:05:53,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756174992] [2020-11-29 22:05:53,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:05:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:05:53,237 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:05:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:05:53,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:05:53,361 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:05:53,365 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:05:53,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:05:53,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:05:53 BoogieIcfgContainer [2020-11-29 22:05:53,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:05:53,431 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:05:53,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:05:53,432 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:05:53,432 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:05:52" (3/4) ... [2020-11-29 22:05:53,435 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:05:53,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:05:53,439 INFO L168 Benchmark]: Toolchain (without parser) took 1858.45 ms. Allocated memory is still 96.5 MB. Free memory was 62.3 MB in the beginning and 52.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:05:53,440 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory was 68.1 MB in the beginning and 68.0 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:05:53,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.34 ms. Allocated memory is still 96.5 MB. Free memory was 62.3 MB in the beginning and 70.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:05:53,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.69 ms. Allocated memory is still 96.5 MB. Free memory was 70.9 MB in the beginning and 68.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:05:53,444 INFO L168 Benchmark]: Boogie Preprocessor took 50.83 ms. Allocated memory is still 96.5 MB. Free memory was 68.3 MB in the beginning and 66.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:05:53,445 INFO L168 Benchmark]: RCFGBuilder took 598.54 ms. Allocated memory is still 96.5 MB. Free memory was 66.7 MB in the beginning and 44.2 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:05:53,446 INFO L168 Benchmark]: TraceAbstraction took 712.88 ms. Allocated memory is still 96.5 MB. Free memory was 43.7 MB in the beginning and 52.7 MB in the end (delta: -9.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:05:53,447 INFO L168 Benchmark]: Witness Printer took 4.19 ms. Allocated memory is still 96.5 MB. Free memory was 52.7 MB in the beginning and 52.1 MB in the end (delta: 535.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:05:53,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory was 68.1 MB in the beginning and 68.0 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 415.34 ms. Allocated memory is still 96.5 MB. Free memory was 62.3 MB in the beginning and 70.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.69 ms. Allocated memory is still 96.5 MB. Free memory was 70.9 MB in the beginning and 68.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.83 ms. Allocated memory is still 96.5 MB. Free memory was 68.3 MB in the beginning and 66.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 598.54 ms. Allocated memory is still 96.5 MB. Free memory was 66.7 MB in the beginning and 44.2 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 712.88 ms. Allocated memory is still 96.5 MB. Free memory was 43.7 MB in the beginning and 52.7 MB in the end (delta: -9.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.19 ms. Allocated memory is still 96.5 MB. Free memory was 52.7 MB in the beginning and 52.1 MB in the end (delta: 535.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 67, overapproximation of someBinaryArithmeticFLOAToperation at line 70. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L129] float x = 0.0f / 0.0f; [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L68] COND TRUE ix >= 0x50800000 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L69] COND TRUE ((ix) > 0x7f800000L) [L70] return x + x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L130] float res = atan_float(x); [L17] return x != x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L133] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0610.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 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: 43 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:05:55,942 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-11-29 22:05:56,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:05:56,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:05:56,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:05:56,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:05:56,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:05:56,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:05:56,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:05:56,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:05:56,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:05:56,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:05:56,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:05:56,053 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 22:05:56,084 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:05:56,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:05:56,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:05:56,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:05:56,087 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:05:56,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:05:56,087 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:05:56,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:05:56,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:05:56,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:05:56,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:05:56,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:05:56,093 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 22:05:56,094 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 22:05:56,094 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:05:56,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:05:56,094 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:05:56,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:05:56,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:05:56,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:05:56,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:05:56,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:05:56,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:05:56,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:05:56,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:05:56,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:05:56,096 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 22:05:56,097 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 22:05:56,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:05:56,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:05:56,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 22:05:56,097 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_835e1ce4-a083-451a-b9b9-9ba6ed370e46/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01f5d92913440f76bf2a724738adcdb83e463632 [2020-11-29 22:05:56,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:05:56,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:05:56,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:05:56,554 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:05:56,560 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:05:56,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-11-29 22:05:56,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/data/8df7ce172/16a93ba580ba459b97eeb490b17c3c6e/FLAG052d1c97b [2020-11-29 22:05:57,137 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:05:57,137 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-11-29 22:05:57,151 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/data/8df7ce172/16a93ba580ba459b97eeb490b17c3c6e/FLAG052d1c97b [2020-11-29 22:05:57,523 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/data/8df7ce172/16a93ba580ba459b97eeb490b17c3c6e [2020-11-29 22:05:57,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:05:57,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:05:57,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:05:57,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:05:57,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:05:57,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:05:57" (1/1) ... [2020-11-29 22:05:57,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75197962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:57, skipping insertion in model container [2020-11-29 22:05:57,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:05:57" (1/1) ... [2020-11-29 22:05:57,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:05:57,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:05:57,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:05:57,831 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:05:57,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:05:57,896 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:05:57,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:57 WrapperNode [2020-11-29 22:05:57,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:05:57,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:05:57,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:05:57,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:05:57,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:57" (1/1) ... [2020-11-29 22:05:57,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:57" (1/1) ... [2020-11-29 22:05:57,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:05:57,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:05:57,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:05:57,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:05:57,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:57" (1/1) ... [2020-11-29 22:05:57,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:57" (1/1) ... [2020-11-29 22:05:57,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:57" (1/1) ... [2020-11-29 22:05:57,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:57" (1/1) ... [2020-11-29 22:05:58,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:57" (1/1) ... [2020-11-29 22:05:58,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:57" (1/1) ... [2020-11-29 22:05:58,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:57" (1/1) ... [2020-11-29 22:05:58,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:05:58,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:05:58,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:05:58,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:05:58,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:05:58,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-29 22:05:58,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 22:05:58,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:05:58,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 22:05:58,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 22:05:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:05:58,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:05:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 22:05:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 22:05:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:06:05,066 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:06:05,066 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 22:06:05,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:06:05 BoogieIcfgContainer [2020-11-29 22:06:05,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:06:05,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:06:05,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:06:05,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:06:05,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:05:57" (1/3) ... [2020-11-29 22:06:05,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ce4d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:06:05, skipping insertion in model container [2020-11-29 22:06:05,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:05:57" (2/3) ... [2020-11-29 22:06:05,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ce4d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:06:05, skipping insertion in model container [2020-11-29 22:06:05,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:06:05" (3/3) ... [2020-11-29 22:06:05,076 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2020-11-29 22:06:05,086 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:06:05,090 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:06:05,101 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 22:06:05,136 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:06:05,138 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:06:05,138 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:06:05,138 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:06:05,138 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:06:05,138 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:06:05,139 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:06:05,139 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:06:05,153 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-29 22:06:05,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:06:05,158 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:06:05,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:06:05,160 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:06:05,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:06:05,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2020-11-29 22:06:05,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:06:05,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248315896] [2020-11-29 22:06:05,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 22:06:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:06:06,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 22:06:06,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:06:06,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:06:06,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:06:06,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:06:06,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248315896] [2020-11-29 22:06:06,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:06:06,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 22:06:06,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036199477] [2020-11-29 22:06:06,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:06:06,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:06:06,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:06:06,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:06:06,134 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-29 22:06:06,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:06:06,151 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-11-29 22:06:06,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:06:06,153 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 22:06:06,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:06:06,161 INFO L225 Difference]: With dead ends: 65 [2020-11-29 22:06:06,162 INFO L226 Difference]: Without dead ends: 30 [2020-11-29 22:06:06,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:06:06,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-29 22:06:06,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-29 22:06:06,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 22:06:06,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-11-29 22:06:06,196 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2020-11-29 22:06:06,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:06:06,196 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-29 22:06:06,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:06:06,196 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-11-29 22:06:06,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:06:06,197 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:06:06,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:06:06,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 22:06:06,412 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:06:06,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:06:06,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2020-11-29 22:06:06,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:06:06,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791977885] [2020-11-29 22:06:06,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 22:06:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:06:07,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 22:06:07,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:06:07,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:06:07,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:06:07,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:06:07,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791977885] [2020-11-29 22:06:07,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:06:07,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-29 22:06:07,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831850115] [2020-11-29 22:06:07,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 22:06:07,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:06:07,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 22:06:07,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:06:07,774 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 10 states. [2020-11-29 22:06:22,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:06:22,536 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2020-11-29 22:06:22,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:06:22,591 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-11-29 22:06:22,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:06:22,593 INFO L225 Difference]: With dead ends: 45 [2020-11-29 22:06:22,593 INFO L226 Difference]: Without dead ends: 37 [2020-11-29 22:06:22,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-29 22:06:22,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-29 22:06:22,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2020-11-29 22:06:22,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 22:06:22,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-11-29 22:06:22,599 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 11 [2020-11-29 22:06:22,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:06:22,599 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-11-29 22:06:22,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 22:06:22,600 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2020-11-29 22:06:22,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 22:06:22,600 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:06:22,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:06:22,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 22:06:22,801 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:06:22,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:06:22,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1812830160, now seen corresponding path program 1 times [2020-11-29 22:06:22,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:06:22,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465541172] [2020-11-29 22:06:22,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 22:06:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:06:23,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 22:06:23,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:06:23,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:06:23,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:06:23,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:06:23,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465541172] [2020-11-29 22:06:23,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:06:23,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2020-11-29 22:06:23,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230423395] [2020-11-29 22:06:23,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 22:06:23,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:06:23,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 22:06:23,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:06:23,977 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 9 states. [2020-11-29 22:06:24,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:06:24,194 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2020-11-29 22:06:24,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:06:24,197 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-11-29 22:06:24,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:06:24,198 INFO L225 Difference]: With dead ends: 30 [2020-11-29 22:06:24,198 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 22:06:24,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-11-29 22:06:24,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 22:06:24,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 22:06:24,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 22:06:24,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:06:24,199 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-29 22:06:24,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:06:24,200 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:06:24,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 22:06:24,200 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:06:24,200 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 22:06:24,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 22:06:24,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 22:06:24,526 INFO L274 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-11-29 22:06:24,526 INFO L274 CegarLoopResult]: For program point L93-2(lines 76 101) no Hoare annotation was computed. [2020-11-29 22:06:24,526 INFO L274 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-11-29 22:06:24,526 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-11-29 22:06:24,526 INFO L274 CegarLoopResult]: For program point L118-2(line 118) no Hoare annotation was computed. [2020-11-29 22:06:24,526 INFO L270 CegarLoopResult]: At program point L118-3(lines 58 120) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_atan_float_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_atan_float_~x)) [2020-11-29 22:06:24,526 INFO L274 CegarLoopResult]: For program point L77(lines 77 80) no Hoare annotation was computed. [2020-11-29 22:06:24,527 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 80) no Hoare annotation was computed. [2020-11-29 22:06:24,527 INFO L274 CegarLoopResult]: For program point L69(lines 69 70) no Hoare annotation was computed. [2020-11-29 22:06:24,527 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 22:06:24,527 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 22:06:24,527 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 22:06:24,527 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 22:06:24,527 INFO L274 CegarLoopResult]: For program point L78(lines 78 79) no Hoare annotation was computed. [2020-11-29 22:06:24,527 INFO L274 CegarLoopResult]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2020-11-29 22:06:24,527 INFO L270 CegarLoopResult]: At program point L62-2(lines 62 66) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_atan_float_~x)) [2020-11-29 22:06:24,528 INFO L274 CegarLoopResult]: For program point L62-3(lines 62 66) no Hoare annotation was computed. [2020-11-29 22:06:24,528 INFO L274 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-11-29 22:06:24,528 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2020-11-29 22:06:24,528 INFO L274 CegarLoopResult]: For program point L71(lines 71 74) no Hoare annotation was computed. [2020-11-29 22:06:24,528 INFO L277 CegarLoopResult]: At program point L138(lines 122 139) the Hoare annotation is: true [2020-11-29 22:06:24,528 INFO L270 CegarLoopResult]: At program point L31(lines 19 32) the Hoare annotation is: false [2020-11-29 22:06:24,528 INFO L274 CegarLoopResult]: For program point L114(lines 114 119) no Hoare annotation was computed. [2020-11-29 22:06:24,528 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 22:06:24,528 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 22:06:24,529 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 22:06:24,529 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_atan_float_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_atan_float_~x)) [2020-11-29 22:06:24,529 INFO L274 CegarLoopResult]: For program point L133(lines 133 136) no Hoare annotation was computed. [2020-11-29 22:06:24,529 INFO L274 CegarLoopResult]: For program point L26(lines 26 30) no Hoare annotation was computed. [2020-11-29 22:06:24,529 INFO L274 CegarLoopResult]: For program point L26-1(lines 19 32) no Hoare annotation was computed. [2020-11-29 22:06:24,529 INFO L274 CegarLoopResult]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2020-11-29 22:06:24,529 INFO L274 CegarLoopResult]: For program point L84(lines 84 100) no Hoare annotation was computed. [2020-11-29 22:06:24,529 INFO L274 CegarLoopResult]: For program point L76(lines 76 101) no Hoare annotation was computed. [2020-11-29 22:06:24,530 INFO L274 CegarLoopResult]: For program point L68(lines 68 75) no Hoare annotation was computed. [2020-11-29 22:06:24,545 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,546 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,548 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,549 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,561 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:06:24 BoogieIcfgContainer [2020-11-29 22:06:24,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:06:24,564 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:06:24,565 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:06:24,565 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:06:24,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:06:05" (3/4) ... [2020-11-29 22:06:24,569 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 22:06:24,583 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-29 22:06:24,583 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 22:06:24,584 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:06:24,584 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:06:24,612 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-11-29 22:06:24,613 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-11-29 22:06:24,667 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_835e1ce4-a083-451a-b9b9-9ba6ed370e46/bin/uautomizer/witness.graphml [2020-11-29 22:06:24,668 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:06:24,672 INFO L168 Benchmark]: Toolchain (without parser) took 27143.48 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.9 MB in the beginning and 24.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:06:24,673 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 50.3 MB. Free memory was 31.9 MB in the beginning and 31.9 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:06:24,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.86 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 28.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:06:24,674 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.97 ms. Allocated memory is still 50.3 MB. Free memory was 28.5 MB in the beginning and 26.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:06:24,675 INFO L168 Benchmark]: Boogie Preprocessor took 61.59 ms. Allocated memory is still 50.3 MB. Free memory was 26.2 MB in the beginning and 24.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:06:24,675 INFO L168 Benchmark]: RCFGBuilder took 7049.05 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 24.0 MB in the beginning and 39.5 MB in the end (delta: -15.5 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:06:24,675 INFO L168 Benchmark]: TraceAbstraction took 19494.26 ms. Allocated memory is still 62.9 MB. Free memory was 38.9 MB in the beginning and 29.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:06:24,676 INFO L168 Benchmark]: Witness Printer took 106.23 ms. Allocated memory is still 62.9 MB. Free memory was 29.1 MB in the beginning and 24.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:06:24,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 50.3 MB. Free memory was 31.9 MB in the beginning and 31.9 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 365.86 ms. Allocated memory is still 50.3 MB. Free memory was 26.7 MB in the beginning and 28.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.97 ms. Allocated memory is still 50.3 MB. Free memory was 28.5 MB in the beginning and 26.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.59 ms. Allocated memory is still 50.3 MB. Free memory was 26.2 MB in the beginning and 24.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 7049.05 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 24.0 MB in the beginning and 39.5 MB in the end (delta: -15.5 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19494.26 ms. Allocated memory is still 62.9 MB. Free memory was 38.9 MB in the beginning and 29.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Witness Printer took 106.23 ms. Allocated memory is still 62.9 MB. Free memory was 29.1 MB in the beginning and 24.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * 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: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant [2020-11-29 22:06:24,689 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 62]: Loop Invariant [2020-11-29 22:06:24,698 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,699 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,706 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 58]: Loop Invariant [2020-11-29 22:06:24,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,707 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,707 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 22:06:24,709 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 22:06:24,709 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 91 SDslu, 119 SDs, 0 SdLazy, 76 SolverSat, 3 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 60 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 6 QuantifiedInterpolants, 3403 SizeOfPredicates, 17 NumberOfNonLiveVariables, 300 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...