./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 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/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_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/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_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/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_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/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 0.1.23-0cd3be1 [2018-11-28 13:23:05,034 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:23:05,035 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:23:05,042 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:23:05,042 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:23:05,043 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:23:05,044 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:23:05,045 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:23:05,046 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:23:05,046 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:23:05,047 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:23:05,047 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:23:05,048 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:23:05,048 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:23:05,049 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:23:05,050 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:23:05,050 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:23:05,052 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:23:05,053 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:23:05,054 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:23:05,055 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:23:05,056 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:23:05,057 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:23:05,057 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:23:05,057 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:23:05,058 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:23:05,059 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:23:05,059 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:23:05,060 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:23:05,061 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:23:05,061 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:23:05,061 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:23:05,061 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:23:05,062 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:23:05,062 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:23:05,063 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:23:05,063 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 13:23:05,072 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:23:05,072 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:23:05,073 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:23:05,073 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:23:05,074 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:23:05,074 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:23:05,074 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:23:05,074 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:23:05,074 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:23:05,074 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:23:05,074 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:23:05,075 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:23:05,075 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:23:05,075 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:23:05,075 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:23:05,075 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:23:05,075 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:23:05,075 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:23:05,075 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:23:05,076 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:23:05,076 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:23:05,076 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:23:05,076 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:23:05,076 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:23:05,076 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:23:05,076 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:23:05,077 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:23:05,077 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:23:05,077 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:23:05,077 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 13:23:05,077 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_fafe155f-4839-47a8-a178-fb2ec29e828a/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 [2018-11-28 13:23:05,100 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:23:05,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:23:05,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:23:05,110 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:23:05,110 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:23:05,111 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-11-28 13:23:05,148 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/data/17b1aeaa6/fda8922da23d4167a5157b831f2716d0/FLAG9fd67dbcb [2018-11-28 13:23:05,449 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:23:05,450 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-11-28 13:23:05,453 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/data/17b1aeaa6/fda8922da23d4167a5157b831f2716d0/FLAG9fd67dbcb [2018-11-28 13:23:05,462 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/data/17b1aeaa6/fda8922da23d4167a5157b831f2716d0 [2018-11-28 13:23:05,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:23:05,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:23:05,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:23:05,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:23:05,468 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:23:05,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:23:05" (1/1) ... [2018-11-28 13:23:05,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fb96c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:05, skipping insertion in model container [2018-11-28 13:23:05,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:23:05" (1/1) ... [2018-11-28 13:23:05,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:23:05,490 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:23:05,600 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:23:05,606 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:23:05,669 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:23:05,686 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:23:05,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:05 WrapperNode [2018-11-28 13:23:05,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:23:05,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:23:05,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:23:05,687 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:23:05,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:05" (1/1) ... [2018-11-28 13:23:05,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:05" (1/1) ... [2018-11-28 13:23:05,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:23:05,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:23:05,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:23:05,706 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:23:05,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:05" (1/1) ... [2018-11-28 13:23:05,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:05" (1/1) ... [2018-11-28 13:23:05,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:05" (1/1) ... [2018-11-28 13:23:05,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:05" (1/1) ... [2018-11-28 13:23:05,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:05" (1/1) ... [2018-11-28 13:23:05,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:05" (1/1) ... [2018-11-28 13:23:05,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:05" (1/1) ... [2018-11-28 13:23:05,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:23:05,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:23:05,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:23:05,737 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:23:05,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/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 [2018-11-28 13:23:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:23:05,772 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:23:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 13:23:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 13:23:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 13:23:05,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 13:23:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:23:05,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:23:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 13:23:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-28 13:23:05,773 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-28 13:23:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:23:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:23:05,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:23:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 13:23:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-11-28 13:23:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-11-28 13:23:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-11-28 13:23:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:23:06,044 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:23:06,045 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 13:23:06,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:23:06 BoogieIcfgContainer [2018-11-28 13:23:06,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:23:06,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:23:06,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:23:06,048 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:23:06,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:23:05" (1/3) ... [2018-11-28 13:23:06,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77084e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:23:06, skipping insertion in model container [2018-11-28 13:23:06,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:05" (2/3) ... [2018-11-28 13:23:06,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77084e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:23:06, skipping insertion in model container [2018-11-28 13:23:06,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:23:06" (3/3) ... [2018-11-28 13:23:06,050 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610_true-unreach-call.c [2018-11-28 13:23:06,057 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:23:06,063 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 13:23:06,076 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 13:23:06,100 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:23:06,100 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:23:06,100 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:23:06,101 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:23:06,101 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:23:06,101 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:23:06,101 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:23:06,101 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:23:06,101 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:23:06,112 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-28 13:23:06,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 13:23:06,117 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:23:06,117 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] [2018-11-28 13:23:06,119 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:23:06,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:06,123 INFO L82 PathProgramCache]: Analyzing trace with hash -267524796, now seen corresponding path program 1 times [2018-11-28 13:23:06,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:06,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:06,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:06,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:06,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:06,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:06,248 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:23:06,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:23:06,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 13:23:06,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 13:23:06,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 13:23:06,259 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-11-28 13:23:06,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:23:06,276 INFO L93 Difference]: Finished difference Result 92 states and 127 transitions. [2018-11-28 13:23:06,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 13:23:06,276 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 13:23:06,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:23:06,282 INFO L225 Difference]: With dead ends: 92 [2018-11-28 13:23:06,282 INFO L226 Difference]: Without dead ends: 46 [2018-11-28 13:23:06,285 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 [2018-11-28 13:23:06,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-28 13:23:06,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-11-28 13:23:06,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-28 13:23:06,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2018-11-28 13:23:06,308 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 22 [2018-11-28 13:23:06,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:23:06,308 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2018-11-28 13:23:06,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 13:23:06,308 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2018-11-28 13:23:06,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 13:23:06,309 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:23:06,309 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] [2018-11-28 13:23:06,310 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:23:06,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:06,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1940744156, now seen corresponding path program 1 times [2018-11-28 13:23:06,310 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:06,310 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:06,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:06,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:06,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:06,392 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 13:23:06,410 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450964 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-28 13:23:06,411 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450950 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-28 13:23:06,411 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450965 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-11-28 13:23:06,412 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450962 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-28 13:23:06,412 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-11-28 13:23:06,412 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450955 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-28 13:23:06,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:23:06 BoogieIcfgContainer [2018-11-28 13:23:06,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:23:06,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:23:06,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:23:06,423 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:23:06,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:23:06" (3/4) ... [2018-11-28 13:23:06,427 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 13:23:06,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:23:06,427 INFO L168 Benchmark]: Toolchain (without parser) took 963.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -113.7 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:06,429 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:23:06,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:06,430 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:23:06,430 INFO L168 Benchmark]: Boogie Preprocessor took 30.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:23:06,430 INFO L168 Benchmark]: RCFGBuilder took 308.94 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:06,431 INFO L168 Benchmark]: TraceAbstraction took 376.82 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:06,431 INFO L168 Benchmark]: Witness Printer took 3.84 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:06,434 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 221.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 308.94 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 376.82 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.84 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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 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# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450955 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, 0.3s 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 0.1.23-0cd3be1 [2018-11-28 13:23:07,834 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:23:07,835 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:23:07,844 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:23:07,844 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:23:07,845 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:23:07,845 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:23:07,846 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:23:07,847 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:23:07,848 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:23:07,849 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:23:07,849 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:23:07,849 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:23:07,850 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:23:07,851 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:23:07,851 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:23:07,852 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:23:07,853 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:23:07,854 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:23:07,855 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:23:07,856 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:23:07,857 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:23:07,859 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:23:07,859 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:23:07,859 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:23:07,860 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:23:07,860 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:23:07,861 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:23:07,861 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:23:07,862 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:23:07,862 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:23:07,863 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:23:07,863 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:23:07,863 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:23:07,864 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:23:07,864 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:23:07,864 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 13:23:07,875 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:23:07,875 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:23:07,876 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:23:07,876 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:23:07,876 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:23:07,876 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:23:07,876 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:23:07,877 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:23:07,877 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:23:07,877 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:23:07,877 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:23:07,877 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:23:07,877 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:23:07,877 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:23:07,878 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 13:23:07,878 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 13:23:07,878 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:23:07,878 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:23:07,878 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:23:07,878 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:23:07,878 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:23:07,878 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:23:07,879 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:23:07,879 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:23:07,879 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:23:07,879 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:23:07,879 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:23:07,879 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:23:07,879 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 13:23:07,880 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:23:07,880 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 13:23:07,880 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 13:23:07,880 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_fafe155f-4839-47a8-a178-fb2ec29e828a/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 [2018-11-28 13:23:07,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:23:07,917 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:23:07,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:23:07,920 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:23:07,921 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:23:07,921 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-11-28 13:23:07,968 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/data/25080c01f/96b638bc5b464badb7e74ec37ad2fda6/FLAGc63860a05 [2018-11-28 13:23:08,368 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:23:08,368 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-11-28 13:23:08,374 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/data/25080c01f/96b638bc5b464badb7e74ec37ad2fda6/FLAGc63860a05 [2018-11-28 13:23:08,383 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/data/25080c01f/96b638bc5b464badb7e74ec37ad2fda6 [2018-11-28 13:23:08,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:23:08,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:23:08,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:23:08,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:23:08,389 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:23:08,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:23:08" (1/1) ... [2018-11-28 13:23:08,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df34b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:08, skipping insertion in model container [2018-11-28 13:23:08,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:23:08" (1/1) ... [2018-11-28 13:23:08,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:23:08,411 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:23:08,543 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:23:08,552 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:23:08,588 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:23:08,610 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:23:08,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:08 WrapperNode [2018-11-28 13:23:08,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:23:08,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:23:08,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:23:08,611 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:23:08,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:08" (1/1) ... [2018-11-28 13:23:08,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:08" (1/1) ... [2018-11-28 13:23:08,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:23:08,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:23:08,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:23:08,668 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:23:08,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:08" (1/1) ... [2018-11-28 13:23:08,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:08" (1/1) ... [2018-11-28 13:23:08,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:08" (1/1) ... [2018-11-28 13:23:08,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:08" (1/1) ... [2018-11-28 13:23:08,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:08" (1/1) ... [2018-11-28 13:23:08,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:08" (1/1) ... [2018-11-28 13:23:08,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:08" (1/1) ... [2018-11-28 13:23:08,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:23:08,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:23:08,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:23:08,702 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:23:08,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/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 [2018-11-28 13:23:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-11-28 13:23:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:23:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:23:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 13:23:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 13:23:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 13:23:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:23:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:23:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-28 13:23:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-28 13:23:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:23:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 13:23:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:23:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:23:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 13:23:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-11-28 13:23:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-11-28 13:23:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 13:23:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:23:08,896 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:23:08,925 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:23:15,821 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 13:23:15,857 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:23:15,857 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 13:23:15,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:23:15 BoogieIcfgContainer [2018-11-28 13:23:15,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:23:15,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:23:15,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:23:15,860 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:23:15,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:23:08" (1/3) ... [2018-11-28 13:23:15,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5369ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:23:15, skipping insertion in model container [2018-11-28 13:23:15,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:08" (2/3) ... [2018-11-28 13:23:15,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5369ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:23:15, skipping insertion in model container [2018-11-28 13:23:15,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:23:15" (3/3) ... [2018-11-28 13:23:15,863 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610_true-unreach-call.c [2018-11-28 13:23:15,868 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:23:15,873 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 13:23:15,882 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 13:23:15,899 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:23:15,900 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:23:15,900 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:23:15,900 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:23:15,900 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:23:15,900 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:23:15,900 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:23:15,900 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:23:15,900 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:23:15,910 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-11-28 13:23:15,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 13:23:15,914 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:23:15,914 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] [2018-11-28 13:23:15,916 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:23:15,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:15,919 INFO L82 PathProgramCache]: Analyzing trace with hash -2011394559, now seen corresponding path program 1 times [2018-11-28 13:23:15,922 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:23:15,922 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/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 [2018-11-28 13:23:15,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:16,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:16,064 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:23:16,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:23:16,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:23:16,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 13:23:16,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 13:23:16,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 13:23:16,086 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-11-28 13:23:16,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:23:16,103 INFO L93 Difference]: Finished difference Result 90 states and 125 transitions. [2018-11-28 13:23:16,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 13:23:16,105 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-28 13:23:16,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:23:16,113 INFO L225 Difference]: With dead ends: 90 [2018-11-28 13:23:16,113 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 13:23:16,116 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 [2018-11-28 13:23:16,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 13:23:16,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-28 13:23:16,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 13:23:16,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2018-11-28 13:23:16,140 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 21 [2018-11-28 13:23:16,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:23:16,140 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2018-11-28 13:23:16,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 13:23:16,140 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2018-11-28 13:23:16,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 13:23:16,141 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:23:16,142 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] [2018-11-28 13:23:16,142 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:23:16,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:16,142 INFO L82 PathProgramCache]: Analyzing trace with hash -241679196, now seen corresponding path program 1 times [2018-11-28 13:23:16,143 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:23:16,143 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/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 [2018-11-28 13:23:16,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:16,284 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:16,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:16,741 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:23:16,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:23:16,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 13:23:16,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 13:23:16,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 13:23:16,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:23:16,756 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand 9 states. [2018-11-28 13:23:26,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:23:26,384 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-11-28 13:23:26,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:23:26,428 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-28 13:23:26,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:23:26,430 INFO L225 Difference]: With dead ends: 55 [2018-11-28 13:23:26,430 INFO L226 Difference]: Without dead ends: 48 [2018-11-28 13:23:26,430 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 13:23:26,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-28 13:23:26,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2018-11-28 13:23:26,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 13:23:26,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2018-11-28 13:23:26,437 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 22 [2018-11-28 13:23:26,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:23:26,437 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2018-11-28 13:23:26,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 13:23:26,438 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2018-11-28 13:23:26,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 13:23:26,438 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:23:26,438 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] [2018-11-28 13:23:26,439 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:23:26,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:26,439 INFO L82 PathProgramCache]: Analyzing trace with hash -922712612, now seen corresponding path program 1 times [2018-11-28 13:23:26,439 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:23:26,439 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/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 [2018-11-28 13:23:26,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:26,554 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:26,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:26,667 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:23:26,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:23:26,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 13:23:26,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 13:23:26,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:23:26,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:23:26,677 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand 8 states. [2018-11-28 13:23:35,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:23:35,344 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2018-11-28 13:23:35,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:23:35,388 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-11-28 13:23:35,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:23:35,389 INFO L225 Difference]: With dead ends: 58 [2018-11-28 13:23:35,389 INFO L226 Difference]: Without dead ends: 46 [2018-11-28 13:23:35,390 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 [2018-11-28 13:23:35,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-28 13:23:35,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2018-11-28 13:23:35,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 13:23:35,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2018-11-28 13:23:35,394 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 23 [2018-11-28 13:23:35,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:23:35,394 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2018-11-28 13:23:35,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 13:23:35,394 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2018-11-28 13:23:35,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 13:23:35,395 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:23:35,395 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] [2018-11-28 13:23:35,395 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:23:35,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:35,395 INFO L82 PathProgramCache]: Analyzing trace with hash 271683777, now seen corresponding path program 1 times [2018-11-28 13:23:35,395 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:23:35,395 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/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 [2018-11-28 13:23:35,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:35,502 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:35,583 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:23:35,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:23:35,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:23:35,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:23:35,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:23:35,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:23:35,595 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 7 states. [2018-11-28 13:23:44,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:23:44,106 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2018-11-28 13:23:44,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:23:44,153 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-28 13:23:44,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:23:44,154 INFO L225 Difference]: With dead ends: 55 [2018-11-28 13:23:44,154 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 13:23:44,155 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 [2018-11-28 13:23:44,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 13:23:44,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2018-11-28 13:23:44,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 13:23:44,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2018-11-28 13:23:44,159 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 24 [2018-11-28 13:23:44,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:23:44,159 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2018-11-28 13:23:44,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:23:44,159 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2018-11-28 13:23:44,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 13:23:44,160 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:23:44,160 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] [2018-11-28 13:23:44,160 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:23:44,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:44,160 INFO L82 PathProgramCache]: Analyzing trace with hash 381736159, now seen corresponding path program 1 times [2018-11-28 13:23:44,161 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 13:23:44,161 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/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 [2018-11-28 13:23:44,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:45,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:45,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:45,186 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 13:23:45,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:23:45,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:23:45,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:23:45,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:23:45,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:23:45,204 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 7 states. [2018-11-28 13:23:52,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:23:52,246 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2018-11-28 13:23:52,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:23:52,293 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 13:23:52,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:23:52,293 INFO L225 Difference]: With dead ends: 44 [2018-11-28 13:23:52,293 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 13:23:52,293 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 [2018-11-28 13:23:52,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 13:23:52,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 13:23:52,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 13:23:52,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 13:23:52,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-28 13:23:52,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:23:52,294 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:23:52,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:23:52,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:23:52,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 13:23:52,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 13:23:52,381 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 15) no Hoare annotation was computed. [2018-11-28 13:23:52,381 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 15) the Hoare annotation is: true [2018-11-28 13:23:52,381 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 15) no Hoare annotation was computed. [2018-11-28 13:23:52,381 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 13:23:52,381 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 13:23:52,381 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:23:52,382 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 17 30) no Hoare annotation was computed. [2018-11-28 13:23:52,382 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 17 30) no Hoare annotation was computed. [2018-11-28 13:23:52,382 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2018-11-28 13:23:52,382 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 17 30) no Hoare annotation was computed. [2018-11-28 13:23:52,382 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 17 30) the Hoare annotation is: true [2018-11-28 13:23:52,382 INFO L448 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2018-11-28 13:23:52,382 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-11-28 13:23:52,382 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: true [2018-11-28 13:23:52,382 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:23:52,382 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 13:23:52,382 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 13:23:52,383 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 13:23:52,383 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))) [2018-11-28 13:23:52,383 INFO L448 ceAbstractionStarter]: For program point L128-1(line 128) no Hoare annotation was computed. [2018-11-28 13:23:52,383 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 120 137) the Hoare annotation is: true [2018-11-28 13:23:52,383 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 120 137) no Hoare annotation was computed. [2018-11-28 13:23:52,383 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 132) no Hoare annotation was computed. [2018-11-28 13:23:52,383 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 120 137) no Hoare annotation was computed. [2018-11-28 13:23:52,383 INFO L448 ceAbstractionStarter]: For program point L132(line 132) no Hoare annotation was computed. [2018-11-28 13:23:52,384 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))) [2018-11-28 13:23:52,384 INFO L448 ceAbstractionStarter]: For program point L131-1(lines 131 134) no Hoare annotation was computed. [2018-11-28 13:23:52,384 INFO L451 ceAbstractionStarter]: At program point atan_floatENTRY(lines 56 118) the Hoare annotation is: true [2018-11-28 13:23:52,384 INFO L448 ceAbstractionStarter]: For program point atan_floatFINAL(lines 56 118) no Hoare annotation was computed. [2018-11-28 13:23:52,384 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2018-11-28 13:23:52,384 INFO L444 ceAbstractionStarter]: At program point L60-2(lines 60 64) the Hoare annotation is: (= |atan_float_#in~x| atan_float_~x) [2018-11-28 13:23:52,384 INFO L448 ceAbstractionStarter]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2018-11-28 13:23:52,385 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)) [2018-11-28 13:23:52,385 INFO L448 ceAbstractionStarter]: For program point L81-1(line 81) no Hoare annotation was computed. [2018-11-28 13:23:52,385 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 72) no Hoare annotation was computed. [2018-11-28 13:23:52,385 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 98) no Hoare annotation was computed. [2018-11-28 13:23:52,385 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 99) no Hoare annotation was computed. [2018-11-28 13:23:52,385 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 73) no Hoare annotation was computed. [2018-11-28 13:23:52,385 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2018-11-28 13:23:52,385 INFO L448 ceAbstractionStarter]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2018-11-28 13:23:52,385 INFO L448 ceAbstractionStarter]: For program point L116(line 116) no Hoare annotation was computed. [2018-11-28 13:23:52,386 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-11-28 13:23:52,386 INFO L448 ceAbstractionStarter]: For program point L116-2(line 116) no Hoare annotation was computed. [2018-11-28 13:23:52,386 INFO L448 ceAbstractionStarter]: For program point L112(lines 112 117) no Hoare annotation was computed. [2018-11-28 13:23:52,386 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2018-11-28 13:23:52,386 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2018-11-28 13:23:52,386 INFO L448 ceAbstractionStarter]: For program point L67(lines 67 68) no Hoare annotation was computed. [2018-11-28 13:23:52,386 INFO L448 ceAbstractionStarter]: For program point atan_floatEXIT(lines 56 118) no Hoare annotation was computed. [2018-11-28 13:23:52,386 INFO L448 ceAbstractionStarter]: For program point L76(lines 76 77) no Hoare annotation was computed. [2018-11-28 13:23:52,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:23:52 BoogieIcfgContainer [2018-11-28 13:23:52,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:23:52,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:23:52,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:23:52,397 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:23:52,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:23:15" (3/4) ... [2018-11-28 13:23:52,399 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 13:23:52,403 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-28 13:23:52,403 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 13:23:52,403 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-28 13:23:52,404 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 13:23:52,404 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-11-28 13:23:52,408 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2018-11-28 13:23:52,408 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-11-28 13:23:52,408 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-28 13:23:52,409 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 13:23:52,428 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 13:23:52,450 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fafe155f-4839-47a8-a178-fb2ec29e828a/bin-2019/uautomizer/witness.graphml [2018-11-28 13:23:52,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:23:52,451 INFO L168 Benchmark]: Toolchain (without parser) took 44065.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 943.4 MB in the beginning and 892.9 MB in the end (delta: 50.5 MB). Peak memory consumption was 208.3 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:52,453 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-28 13:23:52,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.87 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. [2018-11-28 13:23:52,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -219.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:52,453 INFO L168 Benchmark]: Boogie Preprocessor took 33.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:23:52,453 INFO L168 Benchmark]: RCFGBuilder took 7155.22 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: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:52,454 INFO L168 Benchmark]: TraceAbstraction took 36538.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 899.5 MB in the end (delta: 209.4 MB). Peak memory consumption was 209.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:52,454 INFO L168 Benchmark]: Witness Printer took 53.85 ms. Allocated memory is still 1.2 GB. Free memory was 899.5 MB in the beginning and 892.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:52,455 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 223.87 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 56.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -219.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 7155.22 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: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 36538.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 899.5 MB in the end (delta: 209.4 MB). Peak memory consumption was 209.4 MB. Max. memory is 11.5 GB. * Witness Printer took 53.85 ms. Allocated memory is still 1.2 GB. Free memory was 899.5 MB in the beginning and 892.9 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, 36.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 34.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 199 SDtfs, 194 SDslu, 667 SDs, 0 SdLazy, 260 SolverSat, 14 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 31.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s 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, 1.2s 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...