./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0480_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_0480_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8015c985f157600a44233f2d61865f454dda9bb9 .......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_0480_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8015c985f157600a44233f2d61865f454dda9bb9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:58:05,239 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:58:05,241 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:58:05,262 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:58:05,262 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:58:05,263 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:58:05,264 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:58:05,266 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:58:05,268 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:58:05,269 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:58:05,270 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:58:05,270 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:58:05,271 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:58:05,272 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:58:05,273 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:58:05,274 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:58:05,275 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:58:05,276 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:58:05,278 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:58:05,280 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:58:05,281 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:58:05,283 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:58:05,285 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:58:05,286 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:58:05,286 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:58:05,287 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:58:05,288 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:58:05,289 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:58:05,290 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:58:05,291 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:58:05,291 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:58:05,292 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:58:05,292 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:58:05,293 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:58:05,294 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:58:05,295 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:58:05,295 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:58:05,320 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:58:05,321 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:58:05,321 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:58:05,322 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:58:05,322 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:58:05,322 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:58:05,323 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:58:05,323 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:58:05,323 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:58:05,323 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:58:05,323 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:58:05,324 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:58:05,324 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:58:05,324 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:58:05,324 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:58:05,324 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:58:05,324 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:58:05,325 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:58:05,325 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:58:05,325 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:58:05,325 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:58:05,325 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:58:05,326 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:58:05,326 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:58:05,326 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:58:05,326 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:58:05,326 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:58:05,326 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:58:05,327 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:58:05,327 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:58:05,327 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8015c985f157600a44233f2d61865f454dda9bb9 [2018-11-28 17:58:05,371 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:58:05,390 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:58:05,398 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:58:05,400 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:58:05,403 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:58:05,404 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-28 17:58:05,478 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2334e3bc7/f133f7978c6f47f08340d2e1b2fdfb05/FLAG3ca9a28f4 [2018-11-28 17:58:06,012 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:58:06,013 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-28 17:58:06,024 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2334e3bc7/f133f7978c6f47f08340d2e1b2fdfb05/FLAG3ca9a28f4 [2018-11-28 17:58:06,328 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2334e3bc7/f133f7978c6f47f08340d2e1b2fdfb05 [2018-11-28 17:58:06,332 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:58:06,334 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:58:06,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:58:06,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:58:06,339 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:58:06,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:06,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7108c9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06, skipping insertion in model container [2018-11-28 17:58:06,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:06,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:58:06,396 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:58:06,725 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:58:06,731 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:58:06,838 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:58:06,881 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:58:06,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06 WrapperNode [2018-11-28 17:58:06,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:58:06,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:58:06,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:58:06,883 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:58:06,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:06,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:06,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:58:06,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:58:06,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:58:06,998 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:58:07,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:07,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:07,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:07,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:07,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:07,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:07,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... [2018-11-28 17:58:07,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:58:07,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:58:07,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:58:07,049 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:58:07,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 17:58:07,119 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-28 17:58:07,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-28 17:58:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:58:07,121 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:58:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 17:58:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 17:58:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:58:07,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:58:07,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:58:07,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:58:07,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:58:07,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:58:07,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:58:07,122 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-28 17:58:07,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-28 17:58:07,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:58:07,123 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 17:58:07,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 17:58:08,024 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:58:08,026 INFO L280 CfgBuilder]: Removed 14 assue(true) statements. [2018-11-28 17:58:08,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:08 BoogieIcfgContainer [2018-11-28 17:58:08,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:58:08,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:58:08,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:58:08,033 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:58:08,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:58:06" (1/3) ... [2018-11-28 17:58:08,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60160aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:08, skipping insertion in model container [2018-11-28 17:58:08,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:06" (2/3) ... [2018-11-28 17:58:08,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60160aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:08, skipping insertion in model container [2018-11-28 17:58:08,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:08" (3/3) ... [2018-11-28 17:58:08,038 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480_true-unreach-call.c [2018-11-28 17:58:08,051 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:58:08,063 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:58:08,082 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:58:08,127 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:58:08,128 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:58:08,128 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:58:08,129 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:58:08,129 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:58:08,129 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:58:08,130 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:58:08,130 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:58:08,130 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:58:08,151 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2018-11-28 17:58:08,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 17:58:08,157 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:08,158 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:08,160 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:08,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:08,165 INFO L82 PathProgramCache]: Analyzing trace with hash -905917540, now seen corresponding path program 1 times [2018-11-28 17:58:08,167 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:58:08,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:58:08,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:58:08,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:08,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:58:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:08,366 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 17:58:08,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:08,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:58:08,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:58:08,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:58:08,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:58:08,399 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 2 states. [2018-11-28 17:58:08,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:08,435 INFO L93 Difference]: Finished difference Result 134 states and 203 transitions. [2018-11-28 17:58:08,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:58:08,436 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-28 17:58:08,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:08,446 INFO L225 Difference]: With dead ends: 134 [2018-11-28 17:58:08,446 INFO L226 Difference]: Without dead ends: 67 [2018-11-28 17:58:08,451 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 17:58:08,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-11-28 17:58:08,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-11-28 17:58:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-28 17:58:08,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2018-11-28 17:58:08,509 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 18 [2018-11-28 17:58:08,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:08,510 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2018-11-28 17:58:08,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:58:08,510 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2018-11-28 17:58:08,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 17:58:08,511 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:08,511 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:08,512 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:08,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:08,512 INFO L82 PathProgramCache]: Analyzing trace with hash -185682695, now seen corresponding path program 1 times [2018-11-28 17:58:08,512 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:58:08,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:58:08,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:58:08,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:08,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:58:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:58:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:58:08,640 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:58:08,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:58:08 BoogieIcfgContainer [2018-11-28 17:58:08,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:58:08,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:58:08,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:58:08,699 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:58:08,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:08" (3/4) ... [2018-11-28 17:58:08,706 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:58:08,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:58:08,707 INFO L168 Benchmark]: Toolchain (without parser) took 2374.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -108.4 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:08,710 INFO L168 Benchmark]: CDTParser took 0.95 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:58:08,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.06 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 927.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:08,711 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:08,712 INFO L168 Benchmark]: Boogie Preprocessor took 50.70 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 17:58:08,713 INFO L168 Benchmark]: RCFGBuilder took 977.94 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:08,713 INFO L168 Benchmark]: TraceAbstraction took 670.63 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:08,714 INFO L168 Benchmark]: Witness Printer took 7.63 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 17:58:08,720 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 547.06 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 927.2 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 114.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.70 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 977.94 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 670.63 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: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Witness Printer took 7.63 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 182]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 181, overapproximation of someUnaryDOUBLEoperation at line 84, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L81-L88] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [\old(one_acos)=6442450960, \old(one_sqrt)=6442450951, \old(pi)=6442450950, \old(pi)=6442450954, \old(pi)=6442450963, \old(pS0_acos)=6442450944, \old(pS1_acos)=6442450961, \old(pS2_acos)=6442450962, \old(pS3_acos)=6442450948, \old(pS4_acos)=6442450953, \old(pS5_acos)=6442450964, \old(qS1_acos)=6442450947, \old(qS2_acos)=6442450955, \old(qS3_acos)=6442450958, \old(qS4_acos)=6442450949, \old(tiny_sqrt)=6442450959, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L177] float x = 1.0f; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L178] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=1, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L91] float z, p, q, r, w, s, c, df; [L92] __int32_t hx, ix; VAL [\old(x)=1, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (x) [L96] EXPR gf_u.word [L96] (hx) = gf_u.word [L98] ix = hx & 0x7fffffff VAL [\old(x)=1, hx=2147483647, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L99] COND TRUE ix == 0x3f800000 VAL [\old(x)=1, hx=2147483647, ix=1065353216, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L100] COND TRUE hx > 0 [L101] return 0.0; VAL [\old(x)=1, \result=0, hx=2147483647, ix=1065353216, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L178] RET, EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L178] float res = __ieee754_acosf(x); [L181] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, res == 0.0f && __signbit_float(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000, x=1] [L181] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L182] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 71 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 89 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=71occurred 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, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 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 0.1.24-91b1670 [2018-11-28 17:58:11,195 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:58:11,196 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:58:11,209 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:58:11,209 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:58:11,210 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:58:11,212 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:58:11,214 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:58:11,217 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:58:11,223 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:58:11,224 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:58:11,225 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:58:11,225 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:58:11,232 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:58:11,236 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:58:11,236 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:58:11,237 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:58:11,239 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:58:11,241 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:58:11,245 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:58:11,248 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:58:11,250 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:58:11,254 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:58:11,255 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:58:11,256 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:58:11,257 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:58:11,257 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:58:11,259 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:58:11,262 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:58:11,263 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:58:11,265 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:58:11,266 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:58:11,266 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:58:11,266 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:58:11,267 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:58:11,267 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:58:11,270 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:58:11,298 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:58:11,299 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:58:11,300 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:58:11,301 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:58:11,302 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:58:11,303 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:58:11,303 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:58:11,303 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:58:11,304 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:58:11,304 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:58:11,304 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:58:11,304 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:58:11,304 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:58:11,304 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:58:11,305 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:58:11,306 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:58:11,306 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:58:11,306 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:58:11,306 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:58:11,307 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:58:11,307 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:58:11,307 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:58:11,307 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:58:11,307 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:58:11,308 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:58:11,309 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:58:11,309 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:58:11,309 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:58:11,309 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:58:11,310 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:58:11,310 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:58:11,311 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:58:11,311 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8015c985f157600a44233f2d61865f454dda9bb9 [2018-11-28 17:58:11,367 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:58:11,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:58:11,393 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:58:11,394 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:58:11,395 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:58:11,397 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-28 17:58:11,462 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c179a8d4/04fbb349530743cda2b25019f381c473/FLAG32f2d9cbc [2018-11-28 17:58:11,904 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:58:11,905 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0480_true-unreach-call.c [2018-11-28 17:58:11,915 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c179a8d4/04fbb349530743cda2b25019f381c473/FLAG32f2d9cbc [2018-11-28 17:58:12,275 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c179a8d4/04fbb349530743cda2b25019f381c473 [2018-11-28 17:58:12,281 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:58:12,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:58:12,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:58:12,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:58:12,287 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:58:12,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@edc88b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12, skipping insertion in model container [2018-11-28 17:58:12,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:58:12,336 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:58:12,678 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:58:12,686 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:58:12,779 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:58:12,820 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:58:12,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12 WrapperNode [2018-11-28 17:58:12,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:58:12,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:58:12,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:58:12,821 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:58:12,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:58:12,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:58:12,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:58:12,927 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:58:12,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... [2018-11-28 17:58:12,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:58:13,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:58:13,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:58:13,003 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:58:13,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 17:58:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-28 17:58:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-28 17:58:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:58:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:58:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 17:58:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:58:13,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:58:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:58:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:58:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:58:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:58:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 17:58:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-28 17:58:13,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-28 17:58:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 17:58:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:58:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 17:58:13,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 17:58:15,656 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:58:22,764 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:58:22,942 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:58:23,545 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:58:23,929 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:58:23,929 INFO L280 CfgBuilder]: Removed 14 assue(true) statements. [2018-11-28 17:58:23,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:23 BoogieIcfgContainer [2018-11-28 17:58:23,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:58:23,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:58:23,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:58:23,934 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:58:23,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:58:12" (1/3) ... [2018-11-28 17:58:23,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f05431e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:23, skipping insertion in model container [2018-11-28 17:58:23,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:12" (2/3) ... [2018-11-28 17:58:23,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f05431e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:23, skipping insertion in model container [2018-11-28 17:58:23,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:23" (3/3) ... [2018-11-28 17:58:23,938 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480_true-unreach-call.c [2018-11-28 17:58:23,947 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:58:23,956 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:58:23,975 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:58:24,008 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:58:24,009 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:58:24,009 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:58:24,009 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:58:24,009 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:58:24,010 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:58:24,010 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:58:24,010 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:58:24,010 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:58:24,028 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2018-11-28 17:58:24,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 17:58:24,034 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:24,035 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:24,038 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:24,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:24,045 INFO L82 PathProgramCache]: Analyzing trace with hash -905917540, now seen corresponding path program 1 times [2018-11-28 17:58:24,049 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:24,050 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 17:58:24,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:24,158 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:24,176 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 17:58:24,176 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:24,190 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:24,190 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:58:24,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:58:24,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:58:24,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:58:24,210 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 2 states. [2018-11-28 17:58:24,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:24,245 INFO L93 Difference]: Finished difference Result 134 states and 203 transitions. [2018-11-28 17:58:24,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:58:24,248 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-28 17:58:24,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:24,261 INFO L225 Difference]: With dead ends: 134 [2018-11-28 17:58:24,262 INFO L226 Difference]: Without dead ends: 67 [2018-11-28 17:58:24,267 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 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 17:58:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-11-28 17:58:24,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-11-28 17:58:24,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-28 17:58:24,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2018-11-28 17:58:24,319 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 18 [2018-11-28 17:58:24,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:24,319 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2018-11-28 17:58:24,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:58:24,319 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2018-11-28 17:58:24,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 17:58:24,321 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:24,321 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:24,321 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:24,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:24,322 INFO L82 PathProgramCache]: Analyzing trace with hash -185682695, now seen corresponding path program 1 times [2018-11-28 17:58:24,322 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:24,322 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 17:58:24,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:24,439 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:24,777 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 1 [2018-11-28 17:58:24,779 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 17:58:24,780 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:24,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:24,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 17:58:24,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 17:58:24,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 17:58:24,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 17:58:24,797 INFO L87 Difference]: Start difference. First operand 67 states and 85 transitions. Second operand 5 states. [2018-11-28 17:58:33,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:33,456 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2018-11-28 17:58:33,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 17:58:33,716 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-11-28 17:58:33,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:33,718 INFO L225 Difference]: With dead ends: 74 [2018-11-28 17:58:33,719 INFO L226 Difference]: Without dead ends: 71 [2018-11-28 17:58:33,720 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 17:58:33,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-11-28 17:58:33,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-11-28 17:58:33,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-28 17:58:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2018-11-28 17:58:33,737 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 19 [2018-11-28 17:58:33,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:33,738 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2018-11-28 17:58:33,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 17:58:33,738 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2018-11-28 17:58:33,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 17:58:33,742 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:33,742 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:33,743 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:33,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:33,744 INFO L82 PathProgramCache]: Analyzing trace with hash 701820986, now seen corresponding path program 1 times [2018-11-28 17:58:33,744 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:33,745 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 17:58:33,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:33,892 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:34,117 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 17:58:34,117 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:34,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:34,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 17:58:34,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 17:58:34,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 17:58:34,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 17:58:34,130 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand 6 states. [2018-11-28 17:58:40,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:40,982 INFO L93 Difference]: Finished difference Result 88 states and 106 transitions. [2018-11-28 17:58:40,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 17:58:40,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-28 17:58:40,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:40,988 INFO L225 Difference]: With dead ends: 88 [2018-11-28 17:58:40,988 INFO L226 Difference]: Without dead ends: 73 [2018-11-28 17:58:40,989 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 17:58:40,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-28 17:58:41,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-11-28 17:58:41,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-28 17:58:41,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2018-11-28 17:58:41,002 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 19 [2018-11-28 17:58:41,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:41,003 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2018-11-28 17:58:41,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 17:58:41,003 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2018-11-28 17:58:41,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 17:58:41,005 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:41,005 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:41,006 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:41,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:41,006 INFO L82 PathProgramCache]: Analyzing trace with hash 80985497, now seen corresponding path program 1 times [2018-11-28 17:58:41,007 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:41,007 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-28 17:58:41,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-28 17:58:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:41,290 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:41,478 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 17:58:41,478 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:41,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:41,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:58:41,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:58:41,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:58:41,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:58:41,493 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 7 states. [2018-11-28 17:58:41,835 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-28 17:58:48,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:48,047 INFO L93 Difference]: Finished difference Result 86 states and 103 transitions. [2018-11-28 17:58:48,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 17:58:48,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-28 17:58:48,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:48,052 INFO L225 Difference]: With dead ends: 86 [2018-11-28 17:58:48,052 INFO L226 Difference]: Without dead ends: 64 [2018-11-28 17:58:48,053 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:58:48,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-11-28 17:58:48,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-11-28 17:58:48,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-28 17:58:48,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2018-11-28 17:58:48,063 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 19 [2018-11-28 17:58:48,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:48,063 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2018-11-28 17:58:48,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:58:48,064 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2018-11-28 17:58:48,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 17:58:48,065 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:48,065 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 17:58:48,065 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:48,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:48,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1754919774, now seen corresponding path program 1 times [2018-11-28 17:58:48,067 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:48,068 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 17:58:48,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:49,310 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:49,438 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 17:58:49,439 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:49,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:49,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:58:49,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:58:49,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:58:49,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:58:49,478 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand 7 states. [2018-11-28 17:58:54,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:54,785 INFO L93 Difference]: Finished difference Result 79 states and 92 transitions. [2018-11-28 17:58:55,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 17:58:55,028 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-11-28 17:58:55,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:55,029 INFO L225 Difference]: With dead ends: 79 [2018-11-28 17:58:55,029 INFO L226 Difference]: Without dead ends: 63 [2018-11-28 17:58:55,030 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:58:55,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-28 17:58:55,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-11-28 17:58:55,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-28 17:58:55,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2018-11-28 17:58:55,039 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 21 [2018-11-28 17:58:55,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:55,039 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2018-11-28 17:58:55,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:58:55,041 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2018-11-28 17:58:55,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 17:58:55,042 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:55,043 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, 1] [2018-11-28 17:58:55,043 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:55,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:55,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1522642984, now seen corresponding path program 1 times [2018-11-28 17:58:55,044 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:55,044 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-28 17:58:55,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:55,144 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:55,379 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 17:58:55,380 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:55,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:55,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 17:58:55,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 17:58:55,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 17:58:55,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:58:55,396 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand 10 states. [2018-11-28 17:58:58,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:58,471 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2018-11-28 17:58:58,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 17:58:58,471 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2018-11-28 17:58:58,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:58,473 INFO L225 Difference]: With dead ends: 68 [2018-11-28 17:58:58,474 INFO L226 Difference]: Without dead ends: 58 [2018-11-28 17:58:58,474 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-11-28 17:58:58,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-28 17:58:58,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-11-28 17:58:58,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-28 17:58:58,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2018-11-28 17:58:58,482 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 27 [2018-11-28 17:58:58,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:58,483 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2018-11-28 17:58:58,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 17:58:58,483 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2018-11-28 17:58:58,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 17:58:58,484 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:58,484 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, 1, 1, 1, 1] [2018-11-28 17:58:58,484 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:58,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:58,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1281974030, now seen corresponding path program 1 times [2018-11-28 17:58:58,487 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:58,488 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-28 17:58:58,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:59,826 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:59,941 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 17:58:59,941 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:59,971 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:59,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:58:59,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:58:59,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:58:59,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:58:59,974 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 7 states. [2018-11-28 17:59:02,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:59:02,683 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2018-11-28 17:59:02,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 17:59:02,684 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-11-28 17:59:02,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:59:02,685 INFO L225 Difference]: With dead ends: 58 [2018-11-28 17:59:02,685 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:59:02,686 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:59:02,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:59:02,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:59:02,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:59:02,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:59:02,687 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-11-28 17:59:02,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:59:02,687 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:59:02,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:59:02,689 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:59:02,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:59:02,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:59:02,905 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 93 97) no Hoare annotation was computed. [2018-11-28 17:59:02,906 INFO L444 ceAbstractionStarter]: At program point L93-2(lines 93 97) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-11-28 17:59:02,906 INFO L448 ceAbstractionStarter]: For program point L93-3(lines 93 97) no Hoare annotation was computed. [2018-11-28 17:59:02,906 INFO L448 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 90 157) no Hoare annotation was computed. [2018-11-28 17:59:02,906 INFO L451 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 90 157) the Hoare annotation is: true [2018-11-28 17:59:02,906 INFO L444 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv3229614080 32)) (_ bv0 32))))) [2018-11-28 17:59:02,906 INFO L448 ceAbstractionStarter]: For program point L127-1(line 127) no Hoare annotation was computed. [2018-11-28 17:59:02,906 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 156) no Hoare annotation was computed. [2018-11-28 17:59:02,907 INFO L448 ceAbstractionStarter]: For program point L107(lines 107 156) no Hoare annotation was computed. [2018-11-28 17:59:02,907 INFO L448 ceAbstractionStarter]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2018-11-28 17:59:02,907 INFO L444 ceAbstractionStarter]: At program point L136-2(lines 136 140) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv3229614080 32)) (_ bv0 32)))))) [2018-11-28 17:59:02,907 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 106) no Hoare annotation was computed. [2018-11-28 17:59:02,907 INFO L448 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 90 157) no Hoare annotation was computed. [2018-11-28 17:59:02,907 INFO L448 ceAbstractionStarter]: For program point L141(lines 141 145) no Hoare annotation was computed. [2018-11-28 17:59:02,907 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 109) no Hoare annotation was computed. [2018-11-28 17:59:02,907 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 131 156) no Hoare annotation was computed. [2018-11-28 17:59:02,908 INFO L448 ceAbstractionStarter]: For program point L141-2(lines 141 145) no Hoare annotation was computed. [2018-11-28 17:59:02,908 INFO L448 ceAbstractionStarter]: For program point L104(lines 104 106) no Hoare annotation was computed. [2018-11-28 17:59:02,908 INFO L448 ceAbstractionStarter]: For program point L100(lines 100 103) no Hoare annotation was computed. [2018-11-28 17:59:02,908 INFO L444 ceAbstractionStarter]: At program point L134(line 134) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) (_ bv3229614080 32)) (_ bv0 32)))))) [2018-11-28 17:59:02,908 INFO L448 ceAbstractionStarter]: For program point L134-1(line 134) no Hoare annotation was computed. [2018-11-28 17:59:02,908 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:59:02,908 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:59:02,908 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:59:02,909 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:59:02,909 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:59:02,909 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:59:02,909 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:59:02,909 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 171 187) the Hoare annotation is: true [2018-11-28 17:59:02,909 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 171 187) no Hoare annotation was computed. [2018-11-28 17:59:02,909 INFO L448 ceAbstractionStarter]: For program point L182(line 182) no Hoare annotation was computed. [2018-11-28 17:59:02,909 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-28 17:59:02,909 INFO L444 ceAbstractionStarter]: At program point L181-1(line 181) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) main_~res~0) |main_#t~short17| (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) main_~x~0)) [2018-11-28 17:59:02,910 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 182) no Hoare annotation was computed. [2018-11-28 17:59:02,910 INFO L448 ceAbstractionStarter]: For program point L181-2(line 181) no Hoare annotation was computed. [2018-11-28 17:59:02,910 INFO L444 ceAbstractionStarter]: At program point L178(line 178) the Hoare annotation is: (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) main_~x~0) [2018-11-28 17:59:02,910 INFO L448 ceAbstractionStarter]: For program point L178-1(line 178) no Hoare annotation was computed. [2018-11-28 17:59:02,910 INFO L448 ceAbstractionStarter]: For program point L181-4(lines 181 184) no Hoare annotation was computed. [2018-11-28 17:59:02,910 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 171 187) no Hoare annotation was computed. [2018-11-28 17:59:02,910 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 162 166) no Hoare annotation was computed. [2018-11-28 17:59:02,910 INFO L444 ceAbstractionStarter]: At program point L162-2(lines 162 166) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-28 17:59:02,911 INFO L448 ceAbstractionStarter]: For program point L162-3(lines 162 166) no Hoare annotation was computed. [2018-11-28 17:59:02,911 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 159 169) no Hoare annotation was computed. [2018-11-28 17:59:02,911 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 159 169) the Hoare annotation is: true [2018-11-28 17:59:02,911 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 159 169) no Hoare annotation was computed. [2018-11-28 17:59:02,911 INFO L448 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2018-11-28 17:59:02,911 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-28 17:59:02,911 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2018-11-28 17:59:02,911 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-11-28 17:59:02,911 INFO L448 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2018-11-28 17:59:02,911 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: true [2018-11-28 17:59:02,912 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2018-11-28 17:59:02,912 INFO L448 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2018-11-28 17:59:02,912 INFO L451 ceAbstractionStarter]: At program point L73-2(lines 73 77) the Hoare annotation is: true [2018-11-28 17:59:02,912 INFO L448 ceAbstractionStarter]: For program point L73-3(lines 73 77) no Hoare annotation was computed. [2018-11-28 17:59:02,912 INFO L448 ceAbstractionStarter]: For program point L36-2(lines 36 37) no Hoare annotation was computed. [2018-11-28 17:59:02,912 INFO L451 ceAbstractionStarter]: At program point L36-3(lines 36 37) the Hoare annotation is: true [2018-11-28 17:59:02,912 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2018-11-28 17:59:02,912 INFO L448 ceAbstractionStarter]: For program point L36-4(lines 36 37) no Hoare annotation was computed. [2018-11-28 17:59:02,912 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-11-28 17:59:02,913 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 14 79) the Hoare annotation is: true [2018-11-28 17:59:02,913 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 14 79) no Hoare annotation was computed. [2018-11-28 17:59:02,913 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-28 17:59:02,913 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 14 79) no Hoare annotation was computed. [2018-11-28 17:59:02,913 INFO L451 ceAbstractionStarter]: At program point L50-2(lines 50 59) the Hoare annotation is: true [2018-11-28 17:59:02,913 INFO L448 ceAbstractionStarter]: For program point L50-3(lines 14 79) no Hoare annotation was computed. [2018-11-28 17:59:02,913 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-28 17:59:02,913 INFO L448 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-11-28 17:59:02,913 INFO L448 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2018-11-28 17:59:02,914 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2018-11-28 17:59:02,914 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-11-28 17:59:02,929 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,930 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,930 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,930 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,932 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,932 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,932 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,932 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,933 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,935 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,935 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,935 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,935 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,936 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,937 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,937 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:02,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:59:02 BoogieIcfgContainer [2018-11-28 17:59:02,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:59:02,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:59:02,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:59:02,942 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:59:02,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:23" (3/4) ... [2018-11-28 17:59:02,948 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:59:02,958 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-11-28 17:59:02,958 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:59:02,959 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:59:02,959 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-28 17:59:02,959 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-28 17:59:02,969 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-11-28 17:59:02,970 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-28 17:59:02,970 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 17:59:02,971 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 17:59:02,999 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 17:59:03,000 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 17:59:03,002 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(2147483647bv32, __ieee754_acosf_~hx~1) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) && \old(x) == x) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]) && !(~bvadd64(~bvand32(2147483647bv32, __ieee754_acosf_~hx~1), 3229614080bv32) == 0bv32)) [2018-11-28 17:59:03,066 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:59:03,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:59:03,067 INFO L168 Benchmark]: Toolchain (without parser) took 50786.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 946.0 MB in the beginning and 844.7 MB in the end (delta: 101.3 MB). Peak memory consumption was 237.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:03,068 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:59:03,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.51 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 929.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:03,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:03,072 INFO L168 Benchmark]: Boogie Preprocessor took 72.85 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 17:59:03,072 INFO L168 Benchmark]: RCFGBuilder took 10929.67 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: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:03,073 INFO L168 Benchmark]: TraceAbstraction took 39010.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.4 MB in the end (delta: 233.6 MB). Peak memory consumption was 233.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:03,073 INFO L168 Benchmark]: Witness Printer took 124.86 ms. Allocated memory is still 1.2 GB. Free memory was 851.4 MB in the beginning and 844.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:03,078 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 537.51 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 929.9 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 105.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.85 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 10929.67 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: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 39010.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.4 MB in the end (delta: 233.6 MB). Peak memory consumption was 233.6 MB. Max. memory is 11.5 GB. * Witness Printer took 124.86 ms. Allocated memory is still 1.2 GB. Free memory was 851.4 MB in the beginning and 844.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 182]: 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: 50]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant [2018-11-28 17:59:03,086 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,086 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,086 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,087 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,093 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,093 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,093 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,094 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,094 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,094 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,095 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,095 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,095 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,095 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,095 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 17:59:03,096 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] Derived loop invariant: (((\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(2147483647bv32, __ieee754_acosf_~hx~1) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) && \old(x) == x) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]) && !(~bvadd64(~bvand32(2147483647bv32, __ieee754_acosf_~hx~1), 3229614080bv32) == 0bv32)) - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 71 locations, 1 error locations. SAFE Result, 38.9s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 33.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 497 SDtfs, 164 SDslu, 1832 SDs, 0 SdLazy, 194 SolverSat, 14 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 30.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred 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, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 43 PreInvPairs, 57 NumberOfFragments, 149 HoareAnnotationTreeSize, 43 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 146 ConstructedInterpolants, 22 QuantifiedInterpolants, 16763 SizeOfPredicates, 20 NumberOfNonLiveVariables, 743 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...