./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95131fbb90a45f134b236581750b2f1a3cba4d8c .......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95131fbb90a45f134b236581750b2f1a3cba4d8c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 01:26:14,365 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:26:14,366 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:26:14,374 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:26:14,374 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:26:14,375 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:26:14,375 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:26:14,377 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:26:14,378 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:26:14,378 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:26:14,379 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:26:14,379 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:26:14,380 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:26:14,380 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:26:14,381 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:26:14,381 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:26:14,382 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:26:14,383 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:26:14,384 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:26:14,385 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:26:14,386 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:26:14,387 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:26:14,388 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:26:14,388 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:26:14,389 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:26:14,389 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:26:14,390 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:26:14,390 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:26:14,391 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:26:14,391 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:26:14,391 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:26:14,392 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:26:14,392 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:26:14,392 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:26:14,393 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:26:14,393 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:26:14,393 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 01:26:14,401 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:26:14,401 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:26:14,401 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:26:14,401 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:26:14,402 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 01:26:14,402 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 01:26:14,402 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 01:26:14,402 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:26:14,402 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:26:14,403 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 01:26:14,403 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:26:14,403 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:26:14,403 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:26:14,403 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:26:14,403 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:26:14,403 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:26:14,404 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:26:14,404 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 01:26:14,404 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:26:14,404 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:26:14,404 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:26:14,404 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:26:14,405 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:26:14,405 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:26:14,405 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:26:14,405 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:26:14,405 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:26:14,405 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 01:26:14,405 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:26:14,405 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 01:26:14,406 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/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(__VERIFIER_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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2018-12-09 01:26:14,429 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:26:14,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:26:14,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:26:14,441 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:26:14,441 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:26:14,442 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-12-09 01:26:14,483 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/data/d20661c9c/cd50489b6cbf4eed879e37203a176a90/FLAG694adce97 [2018-12-09 01:26:14,896 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:26:14,896 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-12-09 01:26:14,900 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/data/d20661c9c/cd50489b6cbf4eed879e37203a176a90/FLAG694adce97 [2018-12-09 01:26:14,908 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/data/d20661c9c/cd50489b6cbf4eed879e37203a176a90 [2018-12-09 01:26:14,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:26:14,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:26:14,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:26:14,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:26:14,912 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:26:14,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:26:14" (1/1) ... [2018-12-09 01:26:14,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e789c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:14, skipping insertion in model container [2018-12-09 01:26:14,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:26:14" (1/1) ... [2018-12-09 01:26:14,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:26:14,930 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:26:15,032 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:26:15,036 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:26:15,057 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:26:15,100 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:26:15,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:15 WrapperNode [2018-12-09 01:26:15,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:26:15,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:26:15,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:26:15,101 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:26:15,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:15" (1/1) ... [2018-12-09 01:26:15,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:15" (1/1) ... [2018-12-09 01:26:15,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:26:15,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:26:15,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:26:15,117 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:26:15,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:15" (1/1) ... [2018-12-09 01:26:15,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:15" (1/1) ... [2018-12-09 01:26:15,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:15" (1/1) ... [2018-12-09 01:26:15,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:15" (1/1) ... [2018-12-09 01:26:15,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:15" (1/1) ... [2018-12-09 01:26:15,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:15" (1/1) ... [2018-12-09 01:26:15,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:15" (1/1) ... [2018-12-09 01:26:15,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:26:15,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:26:15,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:26:15,140 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:26:15,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/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 [2018-12-09 01:26:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:26:15,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:26:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 01:26:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 01:26:15,170 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 01:26:15,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 01:26:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:26:15,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:26:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 01:26:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-09 01:26:15,171 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-09 01:26:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 01:26:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:26:15,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:26:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 01:26:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-09 01:26:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-12-09 01:26:15,171 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-12-09 01:26:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 01:26:15,374 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:26:15,374 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 01:26:15,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:26:15 BoogieIcfgContainer [2018-12-09 01:26:15,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:26:15,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:26:15,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:26:15,377 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:26:15,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:26:14" (1/3) ... [2018-12-09 01:26:15,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23625a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:26:15, skipping insertion in model container [2018-12-09 01:26:15,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:15" (2/3) ... [2018-12-09 01:26:15,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23625a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:26:15, skipping insertion in model container [2018-12-09 01:26:15,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:26:15" (3/3) ... [2018-12-09 01:26:15,379 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610_true-unreach-call.c [2018-12-09 01:26:15,385 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:26:15,390 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:26:15,398 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:26:15,415 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 01:26:15,415 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:26:15,415 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:26:15,415 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:26:15,415 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:26:15,415 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:26:15,416 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:26:15,416 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:26:15,416 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:26:15,426 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-12-09 01:26:15,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 01:26:15,429 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:26:15,430 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:26:15,431 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:26:15,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:26:15,435 INFO L82 PathProgramCache]: Analyzing trace with hash -267524796, now seen corresponding path program 1 times [2018-12-09 01:26:15,436 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 01:26:15,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 01:26:15,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:26:15,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:26:15,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:26:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:26:15,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:26:15,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:26:15,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 01:26:15,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 01:26:15,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 01:26:15,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 01:26:15,537 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-12-09 01:26:15,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:26:15,551 INFO L93 Difference]: Finished difference Result 92 states and 127 transitions. [2018-12-09 01:26:15,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 01:26:15,552 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-09 01:26:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:26:15,557 INFO L225 Difference]: With dead ends: 92 [2018-12-09 01:26:15,557 INFO L226 Difference]: Without dead ends: 46 [2018-12-09 01:26:15,559 INFO L631 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 [2018-12-09 01:26:15,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-09 01:26:15,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-12-09 01:26:15,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-09 01:26:15,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2018-12-09 01:26:15,581 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 22 [2018-12-09 01:26:15,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:26:15,581 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2018-12-09 01:26:15,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 01:26:15,581 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2018-12-09 01:26:15,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 01:26:15,582 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:26:15,582 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:26:15,582 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:26:15,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:26:15,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1940744156, now seen corresponding path program 1 times [2018-12-09 01:26:15,583 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 01:26:15,583 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 01:26:15,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:26:15,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:26:15,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:26:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:26:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:26:15,643 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 01:26:15,659 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-12-09 01:26:15,660 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450964 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-09 01:26:15,660 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450950 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-09 01:26:15,660 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450955 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-09 01:26:15,660 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450965 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-12-09 01:26:15,660 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450962 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-09 01:26:15,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:26:15 BoogieIcfgContainer [2018-12-09 01:26:15,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:26:15,668 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:26:15,668 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:26:15,668 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:26:15,668 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:26:15" (3/4) ... [2018-12-09 01:26:15,671 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 01:26:15,671 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:26:15,671 INFO L168 Benchmark]: Toolchain (without parser) took 761.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 954.4 MB in the beginning and 1.0 GB in the end (delta: -86.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-12-09 01:26:15,672 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:26:15,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -150.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:26:15,673 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:26:15,673 INFO L168 Benchmark]: Boogie Preprocessor took 22.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:26:15,673 INFO L168 Benchmark]: RCFGBuilder took 234.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-09 01:26:15,674 INFO L168 Benchmark]: TraceAbstraction took 293.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. [2018-12-09 01:26:15,674 INFO L168 Benchmark]: Witness Printer took 2.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:26:15,675 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 189.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -150.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 234.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 293.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450964 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450950 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450955 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450965 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450962 could not be translated for associated CType ARRAY#_4_~FLOAT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 132]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 65, overapproximation of someBinaryArithmeticFLOAToperation at line 68. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L52-L54] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=6442450957, \old(huge_floor)=6442450952, \old(one_atan)=6442450944, \old(pi)=6442450953, \old(pi_o_2)=6442450945, \old(pi_o_4)=6442450949, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L127] float x = 0.0f / 0.0f; VAL [aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L128] CALL, EXPR atan_float(x) VAL [\old(x)=6442450951, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L57] float w, s1, s2, z; [L58] __int32_t ix, hx, id; VAL [\old(x)=6442450951, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450951] [L61] ieee_float_shape_type gf_u; [L62] gf_u.value = (x) [L63] EXPR gf_u.word [L63] (hx) = gf_u.word [L65] ix = hx & 0x7fffffff VAL [\old(x)=6442450951, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450951] [L66] COND TRUE ix >= 0x50800000 VAL [\old(x)=6442450951, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450951] [L67] COND TRUE ((ix) > 0x7f800000L) [L68] return x + x; VAL [\old(x)=6442450951, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450951] [L128] RET, EXPR atan_float(x) VAL [aT_atan={6442450961:0}, atan_float(x)=6442450959, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450951] [L128] float res = atan_float(x); [L131] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450959, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L15] return x != x; VAL [\old(x)=6442450959, \result=0, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450959] [L131] RET, EXPR isnan_float(res) VAL [aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450959, x=6442450951] [L131] COND TRUE !isnan_float(res) [L132] __VERIFIER_error() VAL [aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450959, x=6442450951] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 50 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 60 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=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-635dfa2 [2018-12-09 01:26:16,973 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:26:16,974 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:26:16,980 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:26:16,980 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:26:16,980 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:26:16,981 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:26:16,982 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:26:16,983 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:26:16,983 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:26:16,984 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:26:16,984 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:26:16,984 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:26:16,985 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:26:16,985 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:26:16,985 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:26:16,986 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:26:16,987 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:26:16,988 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:26:16,988 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:26:16,989 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:26:16,989 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:26:16,991 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:26:16,991 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:26:16,991 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:26:16,991 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:26:16,992 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:26:16,992 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:26:16,992 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:26:16,993 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:26:16,993 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:26:16,993 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:26:16,994 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:26:16,994 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:26:16,994 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:26:16,994 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:26:16,995 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-09 01:26:17,002 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:26:17,002 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:26:17,002 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:26:17,003 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:26:17,003 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 01:26:17,003 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 01:26:17,003 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 01:26:17,003 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:26:17,003 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:26:17,003 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:26:17,004 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:26:17,004 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:26:17,004 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:26:17,004 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:26:17,004 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 01:26:17,004 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 01:26:17,004 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:26:17,004 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:26:17,004 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 01:26:17,004 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:26:17,004 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:26:17,005 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:26:17,005 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:26:17,005 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:26:17,005 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:26:17,005 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:26:17,005 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:26:17,005 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:26:17,005 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-09 01:26:17,005 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:26:17,005 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 01:26:17,005 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 01:26:17,006 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/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(__VERIFIER_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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2018-12-09 01:26:17,024 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:26:17,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:26:17,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:26:17,037 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:26:17,037 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:26:17,038 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-12-09 01:26:17,081 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/data/6f0deba93/cd12dc709c2d4ae789bcb9600b584a00/FLAGdbaaa06b1 [2018-12-09 01:26:17,423 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:26:17,423 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-12-09 01:26:17,427 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/data/6f0deba93/cd12dc709c2d4ae789bcb9600b584a00/FLAGdbaaa06b1 [2018-12-09 01:26:17,813 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/data/6f0deba93/cd12dc709c2d4ae789bcb9600b584a00 [2018-12-09 01:26:17,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:26:17,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:26:17,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:26:17,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:26:17,820 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:26:17,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:26:17" (1/1) ... [2018-12-09 01:26:17,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b97ddff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:17, skipping insertion in model container [2018-12-09 01:26:17,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:26:17" (1/1) ... [2018-12-09 01:26:17,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:26:17,840 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:26:17,950 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:26:17,956 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:26:17,983 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:26:18,001 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:26:18,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:18 WrapperNode [2018-12-09 01:26:18,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:26:18,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:26:18,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:26:18,002 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:26:18,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:18" (1/1) ... [2018-12-09 01:26:18,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:18" (1/1) ... [2018-12-09 01:26:18,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:26:18,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:26:18,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:26:18,019 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:26:18,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:18" (1/1) ... [2018-12-09 01:26:18,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:18" (1/1) ... [2018-12-09 01:26:18,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:18" (1/1) ... [2018-12-09 01:26:18,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:18" (1/1) ... [2018-12-09 01:26:18,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:18" (1/1) ... [2018-12-09 01:26:18,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:18" (1/1) ... [2018-12-09 01:26:18,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:18" (1/1) ... [2018-12-09 01:26:18,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:26:18,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:26:18,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:26:18,084 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:26:18,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/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 [2018-12-09 01:26:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-12-09 01:26:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:26:18,114 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:26:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 01:26:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 01:26:18,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 01:26:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:26:18,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:26:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-09 01:26:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-09 01:26:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 01:26:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 01:26:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:26:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:26:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 01:26:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-12-09 01:26:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-12-09 01:26:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 01:26:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 01:26:18,252 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:26:18,269 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:26:26,300 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:26:26,329 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:26:26,330 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 01:26:26,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:26:26 BoogieIcfgContainer [2018-12-09 01:26:26,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:26:26,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:26:26,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:26:26,332 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:26:26,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:26:17" (1/3) ... [2018-12-09 01:26:26,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73556de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:26:26, skipping insertion in model container [2018-12-09 01:26:26,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:26:18" (2/3) ... [2018-12-09 01:26:26,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73556de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:26:26, skipping insertion in model container [2018-12-09 01:26:26,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:26:26" (3/3) ... [2018-12-09 01:26:26,334 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610_true-unreach-call.c [2018-12-09 01:26:26,339 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:26:26,343 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:26:26,352 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:26:26,368 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 01:26:26,369 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:26:26,369 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:26:26,369 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:26:26,369 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:26:26,369 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:26:26,369 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:26:26,369 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:26:26,369 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:26:26,378 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-12-09 01:26:26,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 01:26:26,382 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:26:26,382 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:26:26,384 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:26:26,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:26:26,387 INFO L82 PathProgramCache]: Analyzing trace with hash -2011394559, now seen corresponding path program 1 times [2018-12-09 01:26:26,390 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:26:26,390 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/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 [2018-12-09 01:26:26,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:26:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:26:26,503 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:26:26,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:26:26,514 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 01:26:26,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:26:26,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 01:26:26,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 01:26:26,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 01:26:26,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 01:26:26,536 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-12-09 01:26:26,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:26:26,550 INFO L93 Difference]: Finished difference Result 90 states and 125 transitions. [2018-12-09 01:26:26,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 01:26:26,551 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-09 01:26:26,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:26:26,557 INFO L225 Difference]: With dead ends: 90 [2018-12-09 01:26:26,557 INFO L226 Difference]: Without dead ends: 45 [2018-12-09 01:26:26,559 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 01:26:26,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-09 01:26:26,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-12-09 01:26:26,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-09 01:26:26,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2018-12-09 01:26:26,582 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 21 [2018-12-09 01:26:26,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:26:26,582 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2018-12-09 01:26:26,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 01:26:26,582 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2018-12-09 01:26:26,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 01:26:26,583 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:26:26,583 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:26:26,583 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:26:26,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:26:26,584 INFO L82 PathProgramCache]: Analyzing trace with hash -241679196, now seen corresponding path program 1 times [2018-12-09 01:26:26,584 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:26:26,584 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/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 [2018-12-09 01:26:26,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:26:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:26:26,688 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:26:27,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:26:27,156 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 01:26:27,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:26:27,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 01:26:27,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 01:26:27,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 01:26:27,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 01:26:27,166 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand 9 states. [2018-12-09 01:26:36,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:26:36,230 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-12-09 01:26:36,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 01:26:36,276 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-09 01:26:36,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:26:36,278 INFO L225 Difference]: With dead ends: 55 [2018-12-09 01:26:36,278 INFO L226 Difference]: Without dead ends: 48 [2018-12-09 01:26:36,279 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 01:26:36,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-12-09 01:26:36,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2018-12-09 01:26:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-09 01:26:36,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2018-12-09 01:26:36,286 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 22 [2018-12-09 01:26:36,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:26:36,287 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2018-12-09 01:26:36,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 01:26:36,287 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2018-12-09 01:26:36,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 01:26:36,287 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:26:36,287 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:26:36,288 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:26:36,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:26:36,288 INFO L82 PathProgramCache]: Analyzing trace with hash -922712612, now seen corresponding path program 1 times [2018-12-09 01:26:36,288 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:26:36,288 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/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 [2018-12-09 01:26:36,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:26:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:26:36,398 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:26:36,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:26:36,498 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 01:26:36,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:26:36,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 01:26:36,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 01:26:36,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 01:26:36,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-09 01:26:36,508 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand 8 states. [2018-12-09 01:26:44,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:26:44,877 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2018-12-09 01:26:44,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 01:26:44,925 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-12-09 01:26:44,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:26:44,926 INFO L225 Difference]: With dead ends: 59 [2018-12-09 01:26:44,926 INFO L226 Difference]: Without dead ends: 47 [2018-12-09 01:26:44,926 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-12-09 01:26:44,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-09 01:26:44,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2018-12-09 01:26:44,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-09 01:26:44,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2018-12-09 01:26:44,930 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 23 [2018-12-09 01:26:44,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:26:44,931 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2018-12-09 01:26:44,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 01:26:44,931 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2018-12-09 01:26:44,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 01:26:44,931 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:26:44,932 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:26:44,932 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:26:44,932 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:26:44,932 INFO L82 PathProgramCache]: Analyzing trace with hash 271683777, now seen corresponding path program 1 times [2018-12-09 01:26:44,932 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:26:44,932 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/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 [2018-12-09 01:26:44,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:26:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:26:45,038 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:26:45,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:26:45,112 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 01:26:45,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:26:45,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 01:26:45,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 01:26:45,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 01:26:45,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:26:45,126 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 7 states. [2018-12-09 01:26:52,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:26:52,940 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2018-12-09 01:26:52,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 01:26:52,991 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-09 01:26:52,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:26:52,992 INFO L225 Difference]: With dead ends: 54 [2018-12-09 01:26:52,992 INFO L226 Difference]: Without dead ends: 44 [2018-12-09 01:26:52,992 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 01:26:52,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-09 01:26:52,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2018-12-09 01:26:52,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-09 01:26:52,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2018-12-09 01:26:52,996 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 24 [2018-12-09 01:26:52,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:26:52,997 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2018-12-09 01:26:52,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 01:26:52,997 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2018-12-09 01:26:52,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 01:26:52,997 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:26:52,997 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:26:52,998 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:26:52,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:26:52,998 INFO L82 PathProgramCache]: Analyzing trace with hash 381736159, now seen corresponding path program 1 times [2018-12-09 01:26:52,998 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:26:52,998 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 01:26:53,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:26:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:26:53,939 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:26:54,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:26:54,020 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 01:26:54,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:26:54,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 01:26:54,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 01:26:54,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 01:26:54,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:26:54,038 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 7 states. [2018-12-09 01:27:01,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:27:01,534 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2018-12-09 01:27:01,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 01:27:01,587 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-09 01:27:01,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:27:01,587 INFO L225 Difference]: With dead ends: 44 [2018-12-09 01:27:01,587 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 01:27:01,588 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 01:27:01,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 01:27:01,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 01:27:01,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 01:27:01,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 01:27:01,588 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-09 01:27:01,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:27:01,589 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 01:27:01,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 01:27:01,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 01:27:01,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 01:27:01,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 01:27:01,676 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 15) no Hoare annotation was computed. [2018-12-09 01:27:01,676 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 15) the Hoare annotation is: true [2018-12-09 01:27:01,676 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 15) no Hoare annotation was computed. [2018-12-09 01:27:01,676 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:27:01,676 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 01:27:01,676 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:27:01,677 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 17 30) no Hoare annotation was computed. [2018-12-09 01:27:01,677 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 17 30) no Hoare annotation was computed. [2018-12-09 01:27:01,677 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2018-12-09 01:27:01,677 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 17 30) no Hoare annotation was computed. [2018-12-09 01:27:01,677 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 17 30) the Hoare annotation is: true [2018-12-09 01:27:01,677 INFO L448 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2018-12-09 01:27:01,677 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-12-09 01:27:01,677 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: true [2018-12-09 01:27:01,677 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:27:01,677 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 01:27:01,677 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 01:27:01,677 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:27:01,677 INFO L444 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-12-09 01:27:01,677 INFO L448 ceAbstractionStarter]: For program point L128-1(line 128) no Hoare annotation was computed. [2018-12-09 01:27:01,677 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 120 137) the Hoare annotation is: true [2018-12-09 01:27:01,677 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 120 137) no Hoare annotation was computed. [2018-12-09 01:27:01,677 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 132) no Hoare annotation was computed. [2018-12-09 01:27:01,678 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 120 137) no Hoare annotation was computed. [2018-12-09 01:27:01,678 INFO L448 ceAbstractionStarter]: For program point L132(line 132) no Hoare annotation was computed. [2018-12-09 01:27:01,678 INFO L444 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-12-09 01:27:01,678 INFO L448 ceAbstractionStarter]: For program point L131-1(lines 131 134) no Hoare annotation was computed. [2018-12-09 01:27:01,678 INFO L451 ceAbstractionStarter]: At program point atan_floatENTRY(lines 56 118) the Hoare annotation is: true [2018-12-09 01:27:01,678 INFO L448 ceAbstractionStarter]: For program point atan_floatFINAL(lines 56 118) no Hoare annotation was computed. [2018-12-09 01:27:01,678 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2018-12-09 01:27:01,678 INFO L444 ceAbstractionStarter]: At program point L60-2(lines 60 64) the Hoare annotation is: (= |atan_float_#in~x| atan_float_~x) [2018-12-09 01:27:01,678 INFO L448 ceAbstractionStarter]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2018-12-09 01:27:01,678 INFO L444 ceAbstractionStarter]: At program point L81(line 81) the Hoare annotation is: (and (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (= (bvand (_ bv2147483647 32) atan_float_~hx~0) atan_float_~ix~1))) (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (not (bvsge (bvand (_ bv2147483647 32) atan_float_~hx~0) (_ bv1350565888 32))))) (= |atan_float_#in~x| atan_float_~x)) [2018-12-09 01:27:01,678 INFO L448 ceAbstractionStarter]: For program point L81-1(line 81) no Hoare annotation was computed. [2018-12-09 01:27:01,678 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 72) no Hoare annotation was computed. [2018-12-09 01:27:01,678 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 98) no Hoare annotation was computed. [2018-12-09 01:27:01,678 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 99) no Hoare annotation was computed. [2018-12-09 01:27:01,678 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 73) no Hoare annotation was computed. [2018-12-09 01:27:01,678 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2018-12-09 01:27:01,678 INFO L448 ceAbstractionStarter]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2018-12-09 01:27:01,679 INFO L448 ceAbstractionStarter]: For program point L116(line 116) no Hoare annotation was computed. [2018-12-09 01:27:01,679 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-12-09 01:27:01,679 INFO L448 ceAbstractionStarter]: For program point L116-2(line 116) no Hoare annotation was computed. [2018-12-09 01:27:01,679 INFO L448 ceAbstractionStarter]: For program point L112(lines 112 117) no Hoare annotation was computed. [2018-12-09 01:27:01,679 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2018-12-09 01:27:01,679 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2018-12-09 01:27:01,679 INFO L448 ceAbstractionStarter]: For program point L67(lines 67 68) no Hoare annotation was computed. [2018-12-09 01:27:01,679 INFO L448 ceAbstractionStarter]: For program point atan_floatEXIT(lines 56 118) no Hoare annotation was computed. [2018-12-09 01:27:01,679 INFO L448 ceAbstractionStarter]: For program point L76(lines 76 77) no Hoare annotation was computed. [2018-12-09 01:27:01,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:27:01 BoogieIcfgContainer [2018-12-09 01:27:01,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:27:01,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:27:01,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:27:01,687 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:27:01,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:26:26" (3/4) ... [2018-12-09 01:27:01,689 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 01:27:01,693 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-09 01:27:01,693 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 01:27:01,693 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-12-09 01:27:01,693 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 01:27:01,693 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-12-09 01:27:01,696 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2018-12-09 01:27:01,696 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-09 01:27:01,696 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 01:27:01,696 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 01:27:01,712 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 01:27:01,727 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_73c6343a-5829-4462-87f6-1db1103eb6d3/bin-2019/uautomizer/witness.graphml [2018-12-09 01:27:01,727 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:27:01,728 INFO L168 Benchmark]: Toolchain (without parser) took 43911.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 943.4 MB in the beginning and 856.7 MB in the end (delta: 86.7 MB). Peak memory consumption was 217.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:27:01,728 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:27:01,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.98 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 01:27:01,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.60 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:27:01,729 INFO L168 Benchmark]: Boogie Preprocessor took 64.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-12-09 01:27:01,729 INFO L168 Benchmark]: RCFGBuilder took 8245.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-12-09 01:27:01,729 INFO L168 Benchmark]: TraceAbstraction took 35355.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 863.3 MB in the end (delta: 217.0 MB). Peak memory consumption was 217.0 MB. Max. memory is 11.5 GB. [2018-12-09 01:27:01,729 INFO L168 Benchmark]: Witness Printer took 40.80 ms. Allocated memory is still 1.2 GB. Free memory was 863.3 MB in the beginning and 856.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-09 01:27:01,730 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.98 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.60 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8245.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 35355.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 863.3 MB in the end (delta: 217.0 MB). Peak memory consumption was 217.0 MB. Max. memory is 11.5 GB. * Witness Printer took 40.80 ms. Allocated memory is still 1.2 GB. Free memory was 863.3 MB in the beginning and 856.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 132]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 49 locations, 1 error locations. SAFE Result, 35.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 32.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 199 SDtfs, 195 SDslu, 667 SDs, 0 SdLazy, 259 SolverSat, 14 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 30.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 22 NumberOfFragments, 82 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 111 ConstructedInterpolants, 19 QuantifiedInterpolants, 13326 SizeOfPredicates, 16 NumberOfNonLiveVariables, 681 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...