./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.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_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/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 7f4671d452b9485f517a75db95b3d71f26ad2045 ............................................................................................................................................................................................................................................................................................... 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_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/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 7f4671d452b9485f517a75db95b3d71f26ad2045 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:33:31,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:33:31,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:33:31,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:33:31,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:33:31,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:33:31,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:33:31,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:33:31,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:33:31,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:33:31,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:33:31,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:33:31,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:33:31,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:33:31,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:33:31,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:33:31,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:33:31,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:33:31,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:33:31,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:33:31,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:33:31,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:33:31,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:33:31,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:33:31,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:33:31,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:33:31,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:33:31,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:33:31,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:33:31,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:33:31,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:33:31,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:33:31,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:33:31,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:33:31,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:33:31,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:33:31,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:33:31,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:33:31,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:33:31,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:33:31,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:33:31,354 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:33:31,391 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:33:31,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:33:31,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:33:31,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:33:31,394 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:33:31,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:33:31,395 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:33:31,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:33:31,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:33:31,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:33:31,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:33:31,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:33:31,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:33:31,397 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:33:31,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:33:31,398 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:33:31,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:33:31,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:33:31,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:33:31,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:33:31,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:33:31,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:33:31,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:33:31,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:33:31,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:33:31,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:33:31,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:33:31,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:33:31,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:33:31,401 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_ccc988ff-b71e-4125-b9e5-646604c3fe23/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f4671d452b9485f517a75db95b3d71f26ad2045 [2020-11-29 19:33:31,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:33:31,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:33:31,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:33:31,756 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:33:31,757 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:33:31,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2020-11-29 19:33:31,851 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/data/af1158975/992ee6f617124945b63f0a280e9c481b/FLAG095665c60 [2020-11-29 19:33:32,405 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:33:32,412 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2020-11-29 19:33:32,420 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/data/af1158975/992ee6f617124945b63f0a280e9c481b/FLAG095665c60 [2020-11-29 19:33:32,762 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/data/af1158975/992ee6f617124945b63f0a280e9c481b [2020-11-29 19:33:32,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:33:32,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:33:32,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:33:32,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:33:32,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:33:32,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:32" (1/1) ... [2020-11-29 19:33:32,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cfd5851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:32, skipping insertion in model container [2020-11-29 19:33:32,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:32" (1/1) ... [2020-11-29 19:33:32,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:33:32,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:33:33,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:33:33,050 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:33:33,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:33:33,098 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:33:33,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:33 WrapperNode [2020-11-29 19:33:33,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:33:33,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:33:33,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:33:33,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:33:33,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:33" (1/1) ... [2020-11-29 19:33:33,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:33" (1/1) ... [2020-11-29 19:33:33,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:33:33,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:33:33,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:33:33,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:33:33,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:33" (1/1) ... [2020-11-29 19:33:33,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:33" (1/1) ... [2020-11-29 19:33:33,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:33" (1/1) ... [2020-11-29 19:33:33,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:33" (1/1) ... [2020-11-29 19:33:33,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:33" (1/1) ... [2020-11-29 19:33:33,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:33" (1/1) ... [2020-11-29 19:33:33,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:33" (1/1) ... [2020-11-29 19:33:33,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:33:33,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:33:33,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:33:33,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:33:33,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/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 19:33:33,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:33:33,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:33:33,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 19:33:33,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:33:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 19:33:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:33:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:33:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:33:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:33:33,914 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:33:33,914 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 19:33:33,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:33 BoogieIcfgContainer [2020-11-29 19:33:33,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:33:33,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:33:33,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:33:33,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:33:33,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:33:32" (1/3) ... [2020-11-29 19:33:33,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697cb7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:33:33, skipping insertion in model container [2020-11-29 19:33:33,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:33" (2/3) ... [2020-11-29 19:33:33,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697cb7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:33:33, skipping insertion in model container [2020-11-29 19:33:33,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:33" (3/3) ... [2020-11-29 19:33:33,926 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2020-11-29 19:33:33,936 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:33:33,940 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:33:33,951 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:33:33,974 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:33:33,975 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:33:33,975 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:33:33,975 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:33:33,975 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:33:33,975 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:33:33,976 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:33:33,976 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:33:33,989 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 19:33:33,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:33:33,994 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:33:33,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:33:33,995 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:33:34,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:34,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-11-29 19:33:34,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:33:34,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6043987] [2020-11-29 19:33:34,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:33:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:33:34,123 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 19:33:34,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6043987] [2020-11-29 19:33:34,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:33:34,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:33:34,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431232232] [2020-11-29 19:33:34,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:33:34,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:33:34,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:33:34,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:33:34,145 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 19:33:34,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:33:34,163 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-11-29 19:33:34,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:33:34,164 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 19:33:34,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:33:34,174 INFO L225 Difference]: With dead ends: 73 [2020-11-29 19:33:34,174 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 19:33:34,177 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 19:33:34,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 19:33:34,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 19:33:34,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 19:33:34,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-11-29 19:33:34,228 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-11-29 19:33:34,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:33:34,228 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-11-29 19:33:34,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:33:34,229 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-11-29 19:33:34,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:33:34,229 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:33:34,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:33:34,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:33:34,230 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:33:34,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:34,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-11-29 19:33:34,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:33:34,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252540566] [2020-11-29 19:33:34,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:33:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:34,290 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:33:34,316 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:33:34,338 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:33:34,338 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:33:34,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:33:34,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:33:34 BoogieIcfgContainer [2020-11-29 19:33:34,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:33:34,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:33:34,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:33:34,369 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:33:34,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:33" (3/4) ... [2020-11-29 19:33:34,372 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:33:34,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:33:34,375 INFO L168 Benchmark]: Toolchain (without parser) took 1601.28 ms. Allocated memory was 77.6 MB in the beginning and 102.8 MB in the end (delta: 25.2 MB). Free memory was 48.0 MB in the beginning and 73.5 MB in the end (delta: -25.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:33:34,375 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 50.2 MB in the beginning and 50.2 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:33:34,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.21 ms. Allocated memory was 77.6 MB in the beginning and 102.8 MB in the end (delta: 25.2 MB). Free memory was 47.8 MB in the beginning and 78.9 MB in the end (delta: -31.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:34,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.25 ms. Allocated memory is still 102.8 MB. Free memory was 78.9 MB in the beginning and 77.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:34,378 INFO L168 Benchmark]: Boogie Preprocessor took 50.39 ms. Allocated memory is still 102.8 MB. Free memory was 77.4 MB in the beginning and 75.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:33:34,378 INFO L168 Benchmark]: RCFGBuilder took 710.11 ms. Allocated memory is still 102.8 MB. Free memory was 75.9 MB in the beginning and 54.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:34,379 INFO L168 Benchmark]: TraceAbstraction took 450.63 ms. Allocated memory is still 102.8 MB. Free memory was 54.4 MB in the beginning and 74.1 MB in the end (delta: -19.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:33:34,380 INFO L168 Benchmark]: Witness Printer took 4.13 ms. Allocated memory is still 102.8 MB. Free memory was 74.1 MB in the beginning and 73.5 MB in the end (delta: 641.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:33:34,384 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 77.6 MB. Free memory was 50.2 MB in the beginning and 50.2 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 322.21 ms. Allocated memory was 77.6 MB in the beginning and 102.8 MB in the end (delta: 25.2 MB). Free memory was 47.8 MB in the beginning and 78.9 MB in the end (delta: -31.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.25 ms. Allocated memory is still 102.8 MB. Free memory was 78.9 MB in the beginning and 77.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.39 ms. Allocated memory is still 102.8 MB. Free memory was 77.4 MB in the beginning and 75.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 710.11 ms. Allocated memory is still 102.8 MB. Free memory was 75.9 MB in the beginning and 54.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 450.63 ms. Allocated memory is still 102.8 MB. Free memory was 54.4 MB in the beginning and 74.1 MB in the end (delta: -19.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.13 ms. Allocated memory is still 102.8 MB. Free memory was 74.1 MB in the beginning and 73.5 MB in the end (delta: 641.9 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 107, overapproximation of bitwiseAnd at line 26, overapproximation of someUnaryFLOAToperation at line 103, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L103] float x = -0.0f; [L17] float z; [L18] __uint32_t r, hx; [L19] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (x) [L24] EXPR gf_u.word [L24] (ix) = gf_u.word [L26] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L28] COND TRUE !((hx) < 0x7f800000L) [L29] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L104] float res = __ieee754_sqrtf(x); [L107] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L107] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_0730c.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 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=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 19:33:36,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:33:36,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:33:36,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:33:36,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:33:36,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:33:36,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:33:36,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:33:36,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:33:36,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:33:36,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:33:36,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:33:36,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:33:36,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:33:36,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:33:36,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:33:36,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:33:36,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:33:37,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:33:37,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:33:37,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:33:37,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:33:37,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:33:37,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:33:37,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:33:37,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:33:37,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:33:37,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:33:37,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:33:37,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:33:37,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:33:37,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:33:37,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:33:37,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:33:37,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:33:37,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:33:37,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:33:37,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:33:37,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:33:37,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:33:37,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:33:37,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 19:33:37,068 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:33:37,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:33:37,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:33:37,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:33:37,070 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:33:37,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:33:37,071 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:33:37,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:33:37,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:33:37,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:33:37,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:33:37,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:33:37,072 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 19:33:37,072 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 19:33:37,072 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:33:37,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:33:37,073 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:33:37,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:33:37,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:33:37,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:33:37,074 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:33:37,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:33:37,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:33:37,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:33:37,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:33:37,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:33:37,075 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 19:33:37,075 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 19:33:37,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:33:37,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:33:37,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 19:33:37,079 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_ccc988ff-b71e-4125-b9e5-646604c3fe23/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f4671d452b9485f517a75db95b3d71f26ad2045 [2020-11-29 19:33:37,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:33:37,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:33:37,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:33:37,474 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:33:37,475 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:33:37,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2020-11-29 19:33:37,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/data/d50b30949/1f6b9048ea074e4590d513a5ffcb0779/FLAG38d37419e [2020-11-29 19:33:38,153 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:33:38,154 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2020-11-29 19:33:38,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/data/d50b30949/1f6b9048ea074e4590d513a5ffcb0779/FLAG38d37419e [2020-11-29 19:33:38,518 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/data/d50b30949/1f6b9048ea074e4590d513a5ffcb0779 [2020-11-29 19:33:38,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:33:38,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:33:38,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:33:38,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:33:38,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:33:38,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:38,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a61aab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38, skipping insertion in model container [2020-11-29 19:33:38,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:38,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:33:38,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:33:38,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:33:38,782 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:33:38,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:33:38,866 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:33:38,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38 WrapperNode [2020-11-29 19:33:38,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:33:38,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:33:38,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:33:38,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:33:38,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:38,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:38,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:33:38,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:33:38,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:33:38,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:33:38,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:38,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... [2020-11-29 19:33:39,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:33:39,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:33:39,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:33:39,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:33:39,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/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 19:33:39,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 19:33:39,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:33:39,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 19:33:39,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 19:33:39,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:33:39,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:33:39,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 19:33:39,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 19:33:39,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:33:40,345 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:33:40,345 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 19:33:40,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:40 BoogieIcfgContainer [2020-11-29 19:33:40,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:33:40,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:33:40,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:33:40,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:33:40,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:33:38" (1/3) ... [2020-11-29 19:33:40,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2492f6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:33:40, skipping insertion in model container [2020-11-29 19:33:40,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:38" (2/3) ... [2020-11-29 19:33:40,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2492f6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:33:40, skipping insertion in model container [2020-11-29 19:33:40,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:40" (3/3) ... [2020-11-29 19:33:40,355 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2020-11-29 19:33:40,365 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:33:40,370 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:33:40,382 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:33:40,406 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:33:40,406 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:33:40,406 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:33:40,406 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:33:40,406 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:33:40,407 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:33:40,407 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:33:40,407 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:33:40,418 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 19:33:40,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:33:40,421 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:33:40,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:33:40,422 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:33:40,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:40,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-11-29 19:33:40,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:33:40,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817294476] [2020-11-29 19:33:40,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/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 19:33:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:33:40,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 19:33:40,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:33:40,727 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 19:33:40,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:33:40,734 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 19:33:40,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817294476] [2020-11-29 19:33:40,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:33:40,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 19:33:40,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522550467] [2020-11-29 19:33:40,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:33:40,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:33:40,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:33:40,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:33:40,762 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 19:33:40,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:33:40,798 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-11-29 19:33:40,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:33:40,800 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 19:33:40,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:33:40,810 INFO L225 Difference]: With dead ends: 73 [2020-11-29 19:33:40,811 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 19:33:40,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 19:33:40,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 19:33:40,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 19:33:40,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 19:33:40,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-11-29 19:33:40,856 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-11-29 19:33:40,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:33:40,856 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-11-29 19:33:40,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:33:40,857 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-11-29 19:33:40,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:33:40,857 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:33:40,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:33:41,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 19:33:41,080 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:33:41,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:41,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-11-29 19:33:41,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:33:41,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400612376] [2020-11-29 19:33:41,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/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 19:33:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:33:41,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 19:33:41,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:33:41,432 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 19:33:41,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:33:41,525 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 19:33:41,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400612376] [2020-11-29 19:33:41,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:33:41,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 19:33:41,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564661864] [2020-11-29 19:33:41,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 19:33:41,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:33:41,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 19:33:41,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 19:33:41,529 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2020-11-29 19:33:41,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:33:41,635 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2020-11-29 19:33:41,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:33:41,637 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-11-29 19:33:41,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:33:41,638 INFO L225 Difference]: With dead ends: 43 [2020-11-29 19:33:41,638 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 19:33:41,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 19:33:41,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 19:33:41,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 19:33:41,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 19:33:41,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-29 19:33:41,646 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2020-11-29 19:33:41,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:33:41,646 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-29 19:33:41,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 19:33:41,647 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-29 19:33:41,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:33:41,647 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:33:41,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:33:41,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 19:33:41,848 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:33:41,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:41,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2020-11-29 19:33:41,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:33:41,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202918579] [2020-11-29 19:33:41,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/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 19:33:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:33:41,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 19:33:41,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:33:42,035 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 19:33:42,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:33:42,081 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 19:33:42,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202918579] [2020-11-29 19:33:42,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:33:42,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-11-29 19:33:42,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963852798] [2020-11-29 19:33:42,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 19:33:42,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:33:42,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 19:33:42,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:33:42,088 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2020-11-29 19:33:42,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:33:42,147 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-11-29 19:33:42,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:33:42,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-11-29 19:33:42,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:33:42,149 INFO L225 Difference]: With dead ends: 19 [2020-11-29 19:33:42,149 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 19:33:42,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 19:33:42,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 19:33:42,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 19:33:42,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 19:33:42,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-29 19:33:42,154 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-11-29 19:33:42,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:33:42,154 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-29 19:33:42,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 19:33:42,154 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-29 19:33:42,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 19:33:42,155 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:33:42,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:33:42,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 19:33:42,356 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:33:42,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:33:42,357 INFO L82 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2020-11-29 19:33:42,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:33:42,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655917204] [2020-11-29 19:33:42,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 19:33:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:33:42,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 19:33:42,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:33:42,591 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:33:42,653 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 19:33:42,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:33:42,930 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 19:33:42,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655917204] [2020-11-29 19:33:42,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:33:42,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-11-29 19:33:42,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671257417] [2020-11-29 19:33:42,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-29 19:33:42,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:33:42,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-29 19:33:42,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-11-29 19:33:42,932 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 14 states. [2020-11-29 19:33:43,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:33:43,166 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-11-29 19:33:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 19:33:43,168 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-11-29 19:33:43,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:33:43,169 INFO L225 Difference]: With dead ends: 16 [2020-11-29 19:33:43,169 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:33:43,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-29 19:33:43,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:33:43,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:33:43,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:33:43,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:33:43,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-29 19:33:43,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:33:43,171 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:33:43,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-29 19:33:43,171 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:33:43,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:33:43,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 19:33:43,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:33:43,555 INFO L270 CegarLoopResult]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2020-11-29 19:33:43,555 INFO L274 CegarLoopResult]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2020-11-29 19:33:43,556 INFO L274 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-11-29 19:33:43,556 INFO L274 CegarLoopResult]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2020-11-29 19:33:43,556 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 19:33:43,556 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 19:33:43,556 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:33:43,556 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:33:43,556 INFO L274 CegarLoopResult]: For program point L28(lines 28 29) no Hoare annotation was computed. [2020-11-29 19:33:43,556 INFO L274 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-11-29 19:33:43,557 INFO L270 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short16| (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (fp.neg (_ +zero 8 24))))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) .cse0))) [2020-11-29 19:33:43,557 INFO L274 CegarLoopResult]: For program point L86-3(lines 86 90) no Hoare annotation was computed. [2020-11-29 19:33:43,557 INFO L274 CegarLoopResult]: For program point L37(lines 37 41) no Hoare annotation was computed. [2020-11-29 19:33:43,557 INFO L274 CegarLoopResult]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2020-11-29 19:33:43,557 INFO L274 CegarLoopResult]: For program point L54(lines 54 58) no Hoare annotation was computed. [2020-11-29 19:33:43,557 INFO L274 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-11-29 19:33:43,558 INFO L274 CegarLoopResult]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2020-11-29 19:33:43,558 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (fp.neg (_ +zero 8 24))) [2020-11-29 19:33:43,558 INFO L274 CegarLoopResult]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2020-11-29 19:33:43,558 INFO L277 CegarLoopResult]: At program point L112(lines 95 113) the Hoare annotation is: true [2020-11-29 19:33:43,558 INFO L274 CegarLoopResult]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2020-11-29 19:33:43,558 INFO L270 CegarLoopResult]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2020-11-29 19:33:43,558 INFO L274 CegarLoopResult]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2020-11-29 19:33:43,559 INFO L274 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-11-29 19:33:43,559 INFO L270 CegarLoopResult]: At program point L80(lines 16 81) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (fp.neg (_ +zero 8 24))))) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) .cse0))) [2020-11-29 19:33:43,559 INFO L274 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-11-29 19:33:43,559 INFO L274 CegarLoopResult]: For program point L65(lines 65 71) no Hoare annotation was computed. [2020-11-29 19:33:43,559 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:33:43,560 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 19:33:43,560 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-29 19:33:43,560 INFO L274 CegarLoopResult]: For program point L107-2(lines 107 110) no Hoare annotation was computed. [2020-11-29 19:33:43,560 INFO L274 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-11-29 19:33:43,560 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:33:43,560 INFO L274 CegarLoopResult]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2020-11-29 19:33:43,560 INFO L270 CegarLoopResult]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2020-11-29 19:33:43,561 INFO L274 CegarLoopResult]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2020-11-29 19:33:43,561 INFO L274 CegarLoopResult]: For program point L67(lines 67 70) no Hoare annotation was computed. [2020-11-29 19:33:43,561 INFO L270 CegarLoopResult]: At program point L92(lines 83 93) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short16| (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (fp.neg (_ +zero 8 24))))) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) .cse0) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) .cse0))) [2020-11-29 19:33:43,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,584 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,585 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,585 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,586 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,586 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,588 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:33:43 BoogieIcfgContainer [2020-11-29 19:33:43,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:33:43,591 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:33:43,591 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:33:43,591 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:33:43,592 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:40" (3/4) ... [2020-11-29 19:33:43,596 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:33:43,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-29 19:33:43,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 19:33:43,613 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:33:43,613 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:33:43,648 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-11-29 19:33:43,650 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-11-29 19:33:43,652 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-11-29 19:33:43,704 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ccc988ff-b71e-4125-b9e5-646604c3fe23/bin/uautomizer/witness.graphml [2020-11-29 19:33:43,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:33:43,707 INFO L168 Benchmark]: Toolchain (without parser) took 5183.81 ms. Allocated memory was 50.3 MB in the beginning and 79.7 MB in the end (delta: 29.4 MB). Free memory was 28.3 MB in the beginning and 38.7 MB in the end (delta: -10.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:43,707 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory was 32.7 MB in the beginning and 32.6 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:33:43,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.81 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 28.0 MB in the beginning and 49.1 MB in the end (delta: -21.1 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:43,709 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.32 ms. Allocated memory is still 65.0 MB. Free memory was 49.1 MB in the beginning and 47.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:43,711 INFO L168 Benchmark]: Boogie Preprocessor took 81.97 ms. Allocated memory is still 65.0 MB. Free memory was 47.3 MB in the beginning and 45.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:33:43,712 INFO L168 Benchmark]: RCFGBuilder took 1285.13 ms. Allocated memory is still 65.0 MB. Free memory was 45.5 MB in the beginning and 42.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:43,713 INFO L168 Benchmark]: TraceAbstraction took 3242.63 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 41.5 MB in the beginning and 42.3 MB in the end (delta: -830.0 kB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:43,713 INFO L168 Benchmark]: Witness Printer took 113.32 ms. Allocated memory is still 79.7 MB. Free memory was 42.3 MB in the beginning and 38.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:33:43,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory was 32.7 MB in the beginning and 32.6 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 341.81 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 28.0 MB in the beginning and 49.1 MB in the end (delta: -21.1 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.32 ms. Allocated memory is still 65.0 MB. Free memory was 49.1 MB in the beginning and 47.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.97 ms. Allocated memory is still 65.0 MB. Free memory was 47.3 MB in the beginning and 45.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1285.13 ms. Allocated memory is still 65.0 MB. Free memory was 45.5 MB in the beginning and 42.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3242.63 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 41.5 MB in the beginning and 42.3 MB in the end (delta: -830.0 kB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * Witness Printer took 113.32 ms. Allocated memory is still 79.7 MB. Free memory was 42.3 MB in the beginning and 38.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant [2020-11-29 19:33:43,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,732 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,733 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,733 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,733 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 83]: Loop Invariant [2020-11-29 19:33:43,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,747 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,753 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant [2020-11-29 19:33:43,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,759 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,759 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,760 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 19:33:43,760 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 101 SDslu, 56 SDs, 0 SdLazy, 51 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 149 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 10 QuantifiedInterpolants, 4553 SizeOfPredicates, 22 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...