./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e1a00cf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730c.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f4671d452b9485f517a75db95b3d71f26ad2045 ............................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730c.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f4671d452b9485f517a75db95b3d71f26ad2045 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-0e1a00c [2020-11-29 15:04:33,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 15:04:33,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 15:04:33,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 15:04:33,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 15:04:33,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 15:04:33,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 15:04:33,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 15:04:33,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 15:04:33,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 15:04:33,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 15:04:33,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 15:04:33,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 15:04:33,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 15:04:33,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 15:04:33,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 15:04:33,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 15:04:33,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 15:04:33,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 15:04:33,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 15:04:33,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 15:04:33,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 15:04:33,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 15:04:33,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 15:04:33,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 15:04:33,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 15:04:33,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 15:04:33,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 15:04:33,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 15:04:33,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 15:04:33,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 15:04:33,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 15:04:33,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 15:04:33,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 15:04:33,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 15:04:33,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 15:04:33,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 15:04:33,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 15:04:33,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 15:04:33,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 15:04:33,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 15:04:33,333 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 15:04:33,362 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 15:04:33,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 15:04:33,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 15:04:33,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 15:04:33,366 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 15:04:33,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 15:04:33,367 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 15:04:33,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 15:04:33,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 15:04:33,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 15:04:33,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 15:04:33,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 15:04:33,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 15:04:33,370 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 15:04:33,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 15:04:33,370 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 15:04:33,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 15:04:33,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 15:04:33,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 15:04:33,372 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 15:04:33,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 15:04:33,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 15:04:33,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 15:04:33,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 15:04:33,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 15:04:33,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 15:04:33,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 15:04:33,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 15:04:33,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 15:04:33,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f4671d452b9485f517a75db95b3d71f26ad2045 [2020-11-29 15:04:33,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 15:04:33,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 15:04:33,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 15:04:33,826 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 15:04:33,828 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 15:04:33,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730c.c [2020-11-29 15:04:33,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb35e7970/bae66e7aeee444858bc94c5f545b1189/FLAGdb849b9cb [2020-11-29 15:04:34,552 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 15:04:34,553 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730c.c [2020-11-29 15:04:34,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb35e7970/bae66e7aeee444858bc94c5f545b1189/FLAGdb849b9cb [2020-11-29 15:04:34,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb35e7970/bae66e7aeee444858bc94c5f545b1189 [2020-11-29 15:04:34,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 15:04:34,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 15:04:34,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 15:04:34,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 15:04:34,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 15:04:34,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:04:34" (1/1) ... [2020-11-29 15:04:34,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f26e932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:34, skipping insertion in model container [2020-11-29 15:04:34,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:04:34" (1/1) ... [2020-11-29 15:04:34,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 15:04:35,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 15:04:35,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:04:35,234 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 15:04:35,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:04:35,288 INFO L208 MainTranslator]: Completed translation [2020-11-29 15:04:35,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:35 WrapperNode [2020-11-29 15:04:35,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 15:04:35,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 15:04:35,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 15:04:35,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 15:04:35,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:35" (1/1) ... [2020-11-29 15:04:35,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:35" (1/1) ... [2020-11-29 15:04:35,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 15:04:35,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 15:04:35,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 15:04:35,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 15:04:35,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:35" (1/1) ... [2020-11-29 15:04:35,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:35" (1/1) ... [2020-11-29 15:04:35,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:35" (1/1) ... [2020-11-29 15:04:35,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:35" (1/1) ... [2020-11-29 15:04:35,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:35" (1/1) ... [2020-11-29 15:04:35,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:35" (1/1) ... [2020-11-29 15:04:35,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:35" (1/1) ... [2020-11-29 15:04:35,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 15:04:35,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 15:04:35,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 15:04:35,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 15:04:35,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:35" (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 [2020-11-29 15:04:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 15:04:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 15:04:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 15:04:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 15:04:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 15:04:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 15:04:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 15:04:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 15:04:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 15:04:35,963 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 15:04:35,963 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 15:04:35,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:35 BoogieIcfgContainer [2020-11-29 15:04:35,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 15:04:35,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 15:04:35,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 15:04:35,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 15:04:35,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:04:34" (1/3) ... [2020-11-29 15:04:35,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312bee43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:04:35, skipping insertion in model container [2020-11-29 15:04:35,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:35" (2/3) ... [2020-11-29 15:04:35,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312bee43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:04:35, skipping insertion in model container [2020-11-29 15:04:35,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:35" (3/3) ... [2020-11-29 15:04:35,986 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2020-11-29 15:04:36,004 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 15:04:36,010 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 15:04:36,032 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 15:04:36,100 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 15:04:36,103 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 15:04:36,103 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 15:04:36,104 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 15:04:36,104 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 15:04:36,104 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 15:04:36,104 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 15:04:36,105 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 15:04:36,138 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 15:04:36,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 15:04:36,144 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:04:36,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:04:36,146 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:04:36,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:04:36,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-11-29 15:04:36,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 15:04:36,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805059522] [2020-11-29 15:04:36,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 15:04:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:04:36,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:04:36,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805059522] [2020-11-29 15:04:36,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:04:36,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 15:04:36,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74345376] [2020-11-29 15:04:36,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 15:04:36,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 15:04:36,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 15:04:36,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:04:36,335 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 15:04:36,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:04:36,354 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-11-29 15:04:36,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 15:04:36,355 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 15:04:36,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:04:36,365 INFO L225 Difference]: With dead ends: 73 [2020-11-29 15:04:36,366 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 15:04:36,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:04:36,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 15:04:36,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 15:04:36,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 15:04:36,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-11-29 15:04:36,408 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-11-29 15:04:36,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:04:36,409 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-11-29 15:04:36,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 15:04:36,409 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-11-29 15:04:36,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 15:04:36,410 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:04:36,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:04:36,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 15:04:36,411 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:04:36,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:04:36,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-11-29 15:04:36,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 15:04:36,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165550701] [2020-11-29 15:04:36,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 15:04:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 15:04:36,470 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 15:04:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 15:04:36,527 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 15:04:36,554 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 15:04:36,555 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 15:04:36,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 15:04:36,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:04:36 BoogieIcfgContainer [2020-11-29 15:04:36,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 15:04:36,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 15:04:36,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 15:04:36,593 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 15:04:36,593 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:35" (3/4) ... [2020-11-29 15:04:36,597 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 15:04:36,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 15:04:36,600 INFO L168 Benchmark]: Toolchain (without parser) took 1687.35 ms. Allocated memory was 44.0 MB in the beginning and 62.9 MB in the end (delta: 18.9 MB). Free memory was 20.4 MB in the beginning and 41.0 MB in the end (delta: -20.6 MB). Peak memory consumption was 481.1 kB. Max. memory is 16.1 GB. [2020-11-29 15:04:36,601 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 44.0 MB. Free memory is still 23.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:04:36,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.88 ms. Allocated memory is still 62.9 MB. Free memory was 47.6 MB in the beginning and 36.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:36,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 62.9 MB. Free memory was 36.6 MB in the beginning and 34.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:36,604 INFO L168 Benchmark]: Boogie Preprocessor took 44.06 ms. Allocated memory is still 62.9 MB. Free memory was 34.7 MB in the beginning and 33.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:04:36,605 INFO L168 Benchmark]: RCFGBuilder took 578.80 ms. Allocated memory is still 62.9 MB. Free memory was 33.3 MB in the beginning and 28.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:36,605 INFO L168 Benchmark]: TraceAbstraction took 622.80 ms. Allocated memory is still 62.9 MB. Free memory was 27.5 MB in the beginning and 41.4 MB in the end (delta: -13.9 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:36,606 INFO L168 Benchmark]: Witness Printer took 5.38 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 41.0 MB in the end (delta: 391.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:04:36,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 44.0 MB. Free memory is still 23.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 343.88 ms. Allocated memory is still 62.9 MB. Free memory was 47.6 MB in the beginning and 36.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 62.9 MB. Free memory was 36.6 MB in the beginning and 34.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.06 ms. Allocated memory is still 62.9 MB. Free memory was 34.7 MB in the beginning and 33.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 578.80 ms. Allocated memory is still 62.9 MB. Free memory was 33.3 MB in the beginning and 28.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 622.80 ms. Allocated memory is still 62.9 MB. Free memory was 27.5 MB in the beginning and 41.4 MB in the end (delta: -13.9 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.38 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 41.0 MB in the end (delta: 391.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 107, overapproximation of bitwiseAnd at line 26, overapproximation of someUnaryFLOAToperation at line 103, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L103] float x = -0.0f; [L17] float z; [L18] __uint32_t r, hx; [L19] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (x) [L24] EXPR gf_u.word [L24] (ix) = gf_u.word [L26] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L28] COND TRUE !((hx) < 0x7f800000L) [L29] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L104] float res = __ieee754_sqrtf(x); [L107] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L107] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_0730c.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-0e1a00c [2020-11-29 15:04:39,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 15:04:39,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 15:04:39,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 15:04:39,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 15:04:39,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 15:04:39,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 15:04:39,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 15:04:39,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 15:04:39,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 15:04:39,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 15:04:39,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 15:04:39,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 15:04:39,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 15:04:39,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 15:04:39,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 15:04:39,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 15:04:39,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 15:04:39,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 15:04:39,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 15:04:39,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 15:04:39,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 15:04:39,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 15:04:39,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 15:04:39,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 15:04:39,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 15:04:39,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 15:04:39,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 15:04:39,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 15:04:39,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 15:04:39,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 15:04:39,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 15:04:39,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 15:04:39,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 15:04:39,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 15:04:39,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 15:04:39,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 15:04:39,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 15:04:39,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 15:04:39,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 15:04:39,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 15:04:39,466 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 15:04:39,525 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 15:04:39,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 15:04:39,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 15:04:39,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 15:04:39,530 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 15:04:39,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 15:04:39,531 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 15:04:39,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 15:04:39,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 15:04:39,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 15:04:39,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 15:04:39,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 15:04:39,533 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 15:04:39,534 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 15:04:39,534 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 15:04:39,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 15:04:39,534 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 15:04:39,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 15:04:39,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 15:04:39,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 15:04:39,536 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 15:04:39,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 15:04:39,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 15:04:39,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 15:04:39,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 15:04:39,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 15:04:39,537 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 15:04:39,537 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 15:04:39,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 15:04:39,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 15:04:39,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 15:04:39,538 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f4671d452b9485f517a75db95b3d71f26ad2045 [2020-11-29 15:04:39,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 15:04:40,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 15:04:40,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 15:04:40,019 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 15:04:40,022 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 15:04:40,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730c.c [2020-11-29 15:04:40,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931de9269/f6f3e7c141c44b1dbbacafbecb8247e8/FLAG639116c6a [2020-11-29 15:04:40,697 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 15:04:40,698 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730c.c [2020-11-29 15:04:40,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931de9269/f6f3e7c141c44b1dbbacafbecb8247e8/FLAG639116c6a [2020-11-29 15:04:41,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931de9269/f6f3e7c141c44b1dbbacafbecb8247e8 [2020-11-29 15:04:41,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 15:04:41,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 15:04:41,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 15:04:41,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 15:04:41,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 15:04:41,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:04:41" (1/1) ... [2020-11-29 15:04:41,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367a9223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:41, skipping insertion in model container [2020-11-29 15:04:41,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:04:41" (1/1) ... [2020-11-29 15:04:41,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 15:04:41,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 15:04:41,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:04:41,430 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 15:04:41,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:04:41,489 INFO L208 MainTranslator]: Completed translation [2020-11-29 15:04:41,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:41 WrapperNode [2020-11-29 15:04:41,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 15:04:41,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 15:04:41,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 15:04:41,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 15:04:41,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:41" (1/1) ... [2020-11-29 15:04:41,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:41" (1/1) ... [2020-11-29 15:04:41,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 15:04:41,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 15:04:41,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 15:04:41,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 15:04:41,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:41" (1/1) ... [2020-11-29 15:04:41,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:41" (1/1) ... [2020-11-29 15:04:41,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:41" (1/1) ... [2020-11-29 15:04:41,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:41" (1/1) ... [2020-11-29 15:04:41,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:41" (1/1) ... [2020-11-29 15:04:41,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:41" (1/1) ... [2020-11-29 15:04:41,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:41" (1/1) ... [2020-11-29 15:04:41,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 15:04:41,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 15:04:41,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 15:04:41,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 15:04:41,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:41" (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 [2020-11-29 15:04:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 15:04:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 15:04:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 15:04:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 15:04:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 15:04:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 15:04:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 15:04:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 15:04:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 15:04:43,853 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 15:04:43,854 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 15:04:43,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:43 BoogieIcfgContainer [2020-11-29 15:04:43,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 15:04:43,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 15:04:43,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 15:04:43,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 15:04:43,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:04:41" (1/3) ... [2020-11-29 15:04:43,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0698e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:04:43, skipping insertion in model container [2020-11-29 15:04:43,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:41" (2/3) ... [2020-11-29 15:04:43,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0698e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:04:43, skipping insertion in model container [2020-11-29 15:04:43,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:43" (3/3) ... [2020-11-29 15:04:43,866 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2020-11-29 15:04:43,885 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 15:04:43,890 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 15:04:43,903 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 15:04:43,931 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 15:04:43,931 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 15:04:43,932 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 15:04:43,932 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 15:04:43,932 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 15:04:43,932 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 15:04:43,932 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 15:04:43,933 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 15:04:43,947 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 15:04:43,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 15:04:43,953 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:04:43,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:04:43,955 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:04:43,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:04:43,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-11-29 15:04:43,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:04:43,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167055327] [2020-11-29 15:04:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-11-29 15:04:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:04:44,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 15:04:44,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:04:44,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:04:44,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:04:44,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:04:44,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167055327] [2020-11-29 15:04:44,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:04:44,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 15:04:44,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629900748] [2020-11-29 15:04:44,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 15:04:44,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:04:44,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 15:04:44,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:04:44,312 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 15:04:44,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:04:44,335 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-11-29 15:04:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 15:04:44,337 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 15:04:44,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:04:44,347 INFO L225 Difference]: With dead ends: 73 [2020-11-29 15:04:44,348 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 15:04:44,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:04:44,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 15:04:44,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 15:04:44,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 15:04:44,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-11-29 15:04:44,394 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-11-29 15:04:44,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:04:44,394 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-11-29 15:04:44,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 15:04:44,395 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-11-29 15:04:44,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 15:04:44,395 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:04:44,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:04:44,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 15:04:44,613 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:04:44,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:04:44,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-11-29 15:04:44,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:04:44,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081639603] [2020-11-29 15:04:44,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-11-29 15:04:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:04:44,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 15:04:44,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:04:45,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:04:45,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:04:45,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:04:45,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081639603] [2020-11-29 15:04:45,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:04:45,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 15:04:45,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278851271] [2020-11-29 15:04:45,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 15:04:45,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:04:45,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 15:04:45,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 15:04:45,257 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2020-11-29 15:04:45,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:04:45,390 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2020-11-29 15:04:45,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 15:04:45,391 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-11-29 15:04:45,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:04:45,391 INFO L225 Difference]: With dead ends: 43 [2020-11-29 15:04:45,392 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 15:04:45,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 15:04:45,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 15:04:45,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 15:04:45,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 15:04:45,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-29 15:04:45,398 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2020-11-29 15:04:45,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:04:45,399 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-29 15:04:45,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 15:04:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-29 15:04:45,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 15:04:45,400 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:04:45,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:04:45,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 15:04:45,615 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:04:45,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:04:45,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2020-11-29 15:04:45,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:04:45,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881231471] [2020-11-29 15:04:45,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-11-29 15:04:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:04:45,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 15:04:45,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:04:45,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:04:45,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:04:45,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:04:45,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881231471] [2020-11-29 15:04:45,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:04:45,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-11-29 15:04:45,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820158914] [2020-11-29 15:04:45,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 15:04:45,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:04:45,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 15:04:45,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-29 15:04:45,922 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2020-11-29 15:04:46,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:04:46,046 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-11-29 15:04:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 15:04:46,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-11-29 15:04:46,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:04:46,047 INFO L225 Difference]: With dead ends: 19 [2020-11-29 15:04:46,048 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 15:04:46,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 15:04:46,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 15:04:46,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 15:04:46,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 15:04:46,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-29 15:04:46,053 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-11-29 15:04:46,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:04:46,054 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-29 15:04:46,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 15:04:46,054 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-29 15:04:46,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 15:04:46,055 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:04:46,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:04:46,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 15:04:46,257 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:04:46,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:04:46,259 INFO L82 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2020-11-29 15:04:46,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:04:46,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927355559] [2020-11-29 15:04:46,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 15:04:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:04:46,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 15:04:46,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:04:46,551 INFO L626 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 15:04:46,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:04:46,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:04:47,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:04:47,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927355559] [2020-11-29 15:04:47,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:04:47,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-11-29 15:04:47,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351299584] [2020-11-29 15:04:47,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-29 15:04:47,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:04:47,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-29 15:04:47,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-11-29 15:04:47,165 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 14 states. [2020-11-29 15:04:47,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:04:47,572 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-11-29 15:04:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 15:04:47,573 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-11-29 15:04:47,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:04:47,574 INFO L225 Difference]: With dead ends: 16 [2020-11-29 15:04:47,574 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 15:04:47,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-29 15:04:47,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 15:04:47,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 15:04:47,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 15:04:47,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 15:04:47,576 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-29 15:04:47,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:04:47,576 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 15:04:47,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-29 15:04:47,576 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 15:04:47,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 15:04:47,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 15:04:47,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 15:04:48,011 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2020-11-29 15:04:48,012 INFO L262 CegarLoopResult]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2020-11-29 15:04:48,012 INFO L262 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-11-29 15:04:48,012 INFO L262 CegarLoopResult]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2020-11-29 15:04:48,012 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 15:04:48,012 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 15:04:48,012 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 15:04:48,012 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 15:04:48,013 INFO L262 CegarLoopResult]: For program point L28(lines 28 29) no Hoare annotation was computed. [2020-11-29 15:04:48,013 INFO L262 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-11-29 15:04:48,013 INFO L258 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short16| (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (fp.neg (_ +zero 8 24))))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) .cse0))) [2020-11-29 15:04:48,013 INFO L262 CegarLoopResult]: For program point L86-3(lines 86 90) no Hoare annotation was computed. [2020-11-29 15:04:48,013 INFO L262 CegarLoopResult]: For program point L37(lines 37 41) no Hoare annotation was computed. [2020-11-29 15:04:48,013 INFO L262 CegarLoopResult]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2020-11-29 15:04:48,014 INFO L262 CegarLoopResult]: For program point L54(lines 54 58) no Hoare annotation was computed. [2020-11-29 15:04:48,014 INFO L262 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-11-29 15:04:48,014 INFO L262 CegarLoopResult]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2020-11-29 15:04:48,015 INFO L258 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (fp.neg (_ +zero 8 24))) [2020-11-29 15:04:48,015 INFO L262 CegarLoopResult]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2020-11-29 15:04:48,015 INFO L265 CegarLoopResult]: At program point L112(lines 95 113) the Hoare annotation is: true [2020-11-29 15:04:48,015 INFO L262 CegarLoopResult]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2020-11-29 15:04:48,016 INFO L258 CegarLoopResult]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2020-11-29 15:04:48,016 INFO L262 CegarLoopResult]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2020-11-29 15:04:48,016 INFO L262 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-11-29 15:04:48,017 INFO L258 CegarLoopResult]: At program point L80(lines 16 81) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (fp.neg (_ +zero 8 24))))) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) .cse0))) [2020-11-29 15:04:48,017 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-11-29 15:04:48,017 INFO L262 CegarLoopResult]: For program point L65(lines 65 71) no Hoare annotation was computed. [2020-11-29 15:04:48,017 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 15:04:48,018 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 15:04:48,018 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-29 15:04:48,018 INFO L262 CegarLoopResult]: For program point L107-2(lines 107 110) no Hoare annotation was computed. [2020-11-29 15:04:48,018 INFO L262 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-11-29 15:04:48,018 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 15:04:48,019 INFO L262 CegarLoopResult]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2020-11-29 15:04:48,019 INFO L258 CegarLoopResult]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2020-11-29 15:04:48,019 INFO L262 CegarLoopResult]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2020-11-29 15:04:48,019 INFO L262 CegarLoopResult]: For program point L67(lines 67 70) no Hoare annotation was computed. [2020-11-29 15:04:48,020 INFO L258 CegarLoopResult]: At program point L92(lines 83 93) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short16| (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (fp.neg (_ +zero 8 24))))) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) .cse0) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) .cse0))) [2020-11-29 15:04:48,028 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,030 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,030 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,030 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,039 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,039 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,039 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,040 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,042 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,042 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,042 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,043 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,044 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,044 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,044 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:04:48 BoogieIcfgContainer [2020-11-29 15:04:48,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 15:04:48,053 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 15:04:48,053 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 15:04:48,053 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 15:04:48,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:43" (3/4) ... [2020-11-29 15:04:48,058 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 15:04:48,070 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-29 15:04:48,071 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 15:04:48,071 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 15:04:48,072 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 15:04:48,102 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-11-29 15:04:48,103 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-11-29 15:04:48,117 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-11-29 15:04:48,152 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-29 15:04:48,153 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 15:04:48,155 INFO L168 Benchmark]: Toolchain (without parser) took 7064.32 ms. Allocated memory was 46.1 MB in the beginning and 73.4 MB in the end (delta: 27.3 MB). Free memory was 23.3 MB in the beginning and 53.9 MB in the end (delta: -30.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:48,156 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 46.1 MB. Free memory was 24.1 MB in the beginning and 24.1 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:04:48,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.82 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 22.6 MB in the beginning and 34.5 MB in the end (delta: -12.0 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:48,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.72 ms. Allocated memory is still 60.8 MB. Free memory was 34.5 MB in the beginning and 32.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:48,158 INFO L168 Benchmark]: Boogie Preprocessor took 64.64 ms. Allocated memory is still 60.8 MB. Free memory was 32.4 MB in the beginning and 30.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:48,159 INFO L168 Benchmark]: RCFGBuilder took 2242.40 ms. Allocated memory is still 60.8 MB. Free memory was 30.7 MB in the beginning and 40.2 MB in the end (delta: -9.4 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:48,160 INFO L168 Benchmark]: TraceAbstraction took 4193.77 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 39.9 MB in the beginning and 26.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:48,160 INFO L168 Benchmark]: Witness Printer took 100.34 ms. Allocated memory is still 73.4 MB. Free memory was 26.4 MB in the beginning and 53.9 MB in the end (delta: -27.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:48,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 46.1 MB. Free memory was 24.1 MB in the beginning and 24.1 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 388.82 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 22.6 MB in the beginning and 34.5 MB in the end (delta: -12.0 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.72 ms. Allocated memory is still 60.8 MB. Free memory was 34.5 MB in the beginning and 32.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.64 ms. Allocated memory is still 60.8 MB. Free memory was 32.4 MB in the beginning and 30.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2242.40 ms. Allocated memory is still 60.8 MB. Free memory was 30.7 MB in the beginning and 40.2 MB in the end (delta: -9.4 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4193.77 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 39.9 MB in the beginning and 26.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. * Witness Printer took 100.34 ms. Allocated memory is still 73.4 MB. Free memory was 26.4 MB in the beginning and 53.9 MB in the end (delta: -27.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant [2020-11-29 15:04:48,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 83]: Loop Invariant [2020-11-29 15:04:48,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant [2020-11-29 15:04:48,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,185 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,185 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,186 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:48,186 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 101 SDslu, 56 SDs, 0 SdLazy, 51 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 149 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 10 QuantifiedInterpolants, 4553 SizeOfPredicates, 22 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...