./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b.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_0730b.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 3c929687e1048988919d423afa09e6828bbc6230 ............................................................................................................................................................................................................................................................................................... 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_0730b.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 3c929687e1048988919d423afa09e6828bbc6230 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:04:15,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 15:04:15,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 15:04:15,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 15:04:15,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 15:04:15,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 15:04:15,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 15:04:15,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 15:04:15,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 15:04:15,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 15:04:15,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 15:04:15,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 15:04:15,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 15:04:15,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 15:04:15,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 15:04:15,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 15:04:15,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 15:04:15,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 15:04:15,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 15:04:15,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 15:04:15,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 15:04:15,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 15:04:15,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 15:04:15,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 15:04:15,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 15:04:15,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 15:04:15,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 15:04:15,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 15:04:15,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 15:04:15,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 15:04:15,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 15:04:15,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 15:04:15,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 15:04:15,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 15:04:15,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 15:04:15,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 15:04:15,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 15:04:15,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 15:04:15,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 15:04:15,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 15:04:15,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 15:04:15,107 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 15:04:15,157 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 15:04:15,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 15:04:15,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 15:04:15,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 15:04:15,162 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 15:04:15,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 15:04:15,162 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 15:04:15,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 15:04:15,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 15:04:15,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 15:04:15,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 15:04:15,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 15:04:15,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 15:04:15,165 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 15:04:15,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 15:04:15,165 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 15:04:15,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 15:04:15,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 15:04:15,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 15:04:15,166 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 15:04:15,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 15:04:15,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 15:04:15,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 15:04:15,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 15:04:15,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 15:04:15,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 15:04:15,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 15:04:15,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 15:04:15,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 15:04:15,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c929687e1048988919d423afa09e6828bbc6230 [2020-11-29 15:04:15,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 15:04:15,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 15:04:15,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 15:04:15,595 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 15:04:15,597 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 15:04:15,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-11-29 15:04:15,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e187afc91/eab043d0dabc47a1828f696b98916e64/FLAGee2963dd0 [2020-11-29 15:04:16,313 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 15:04:16,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-11-29 15:04:16,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e187afc91/eab043d0dabc47a1828f696b98916e64/FLAGee2963dd0 [2020-11-29 15:04:16,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e187afc91/eab043d0dabc47a1828f696b98916e64 [2020-11-29 15:04:16,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 15:04:16,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 15:04:16,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 15:04:16,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 15:04:16,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 15:04:16,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:04:16" (1/1) ... [2020-11-29 15:04:16,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa3c0e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:16, skipping insertion in model container [2020-11-29 15:04:16,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:04:16" (1/1) ... [2020-11-29 15:04:16,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 15:04:16,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 15:04:17,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:04:17,147 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 15:04:17,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:04:17,206 INFO L208 MainTranslator]: Completed translation [2020-11-29 15:04:17,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:17 WrapperNode [2020-11-29 15:04:17,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 15:04:17,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 15:04:17,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 15:04:17,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 15:04:17,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:17" (1/1) ... [2020-11-29 15:04:17,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:17" (1/1) ... [2020-11-29 15:04:17,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 15:04:17,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 15:04:17,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 15:04:17,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 15:04:17,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:17" (1/1) ... [2020-11-29 15:04:17,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:17" (1/1) ... [2020-11-29 15:04:17,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:17" (1/1) ... [2020-11-29 15:04:17,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:17" (1/1) ... [2020-11-29 15:04:17,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:17" (1/1) ... [2020-11-29 15:04:17,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:17" (1/1) ... [2020-11-29 15:04:17,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:17" (1/1) ... [2020-11-29 15:04:17,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 15:04:17,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 15:04:17,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 15:04:17,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 15:04:17,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:17" (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 15:04:17,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 15:04:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 15:04:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 15:04:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 15:04:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 15:04:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 15:04:17,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 15:04:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 15:04:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 15:04:18,046 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 15:04:18,049 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 15:04:18,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:18 BoogieIcfgContainer [2020-11-29 15:04:18,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 15:04:18,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 15:04:18,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 15:04:18,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 15:04:18,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:04:16" (1/3) ... [2020-11-29 15:04:18,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf67667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:04:18, skipping insertion in model container [2020-11-29 15:04:18,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:17" (2/3) ... [2020-11-29 15:04:18,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf67667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:04:18, skipping insertion in model container [2020-11-29 15:04:18,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:18" (3/3) ... [2020-11-29 15:04:18,074 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2020-11-29 15:04:18,101 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 15:04:18,106 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 15:04:18,123 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 15:04:18,147 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 15:04:18,148 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 15:04:18,148 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 15:04:18,148 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 15:04:18,149 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 15:04:18,149 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 15:04:18,149 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 15:04:18,149 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 15:04:18,165 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 15:04:18,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 15:04:18,176 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:04:18,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:04:18,177 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:04:18,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:04:18,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-11-29 15:04:18,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 15:04:18,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455947352] [2020-11-29 15:04:18,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 15:04:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:04:18,340 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 15:04:18,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455947352] [2020-11-29 15:04:18,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:04:18,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 15:04:18,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116161645] [2020-11-29 15:04:18,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 15:04:18,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 15:04:18,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 15:04:18,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:04:18,362 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 15:04:18,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:04:18,382 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-11-29 15:04:18,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 15:04:18,384 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 15:04:18,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:04:18,395 INFO L225 Difference]: With dead ends: 73 [2020-11-29 15:04:18,396 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 15:04:18,399 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 15:04:18,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 15:04:18,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 15:04:18,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 15:04:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-11-29 15:04:18,439 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-11-29 15:04:18,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:04:18,439 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-11-29 15:04:18,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 15:04:18,440 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-11-29 15:04:18,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 15:04:18,440 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:04:18,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:04:18,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 15:04:18,441 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:04:18,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:04:18,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-11-29 15:04:18,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 15:04:18,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962146135] [2020-11-29 15:04:18,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 15:04:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 15:04:18,514 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 15:04:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 15:04:18,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 15:04:18,621 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 15:04:18,621 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 15:04:18,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 15:04:18,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:04:18 BoogieIcfgContainer [2020-11-29 15:04:18,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 15:04:18,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 15:04:18,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 15:04:18,673 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 15:04:18,674 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:18" (3/4) ... [2020-11-29 15:04:18,678 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 15:04:18,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 15:04:18,682 INFO L168 Benchmark]: Toolchain (without parser) took 1992.17 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.4 MB in the beginning and 37.9 MB in the end (delta: -14.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:04:18,683 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 37.7 MB. Free memory was 17.9 MB in the beginning and 17.9 MB in the end (delta: 22.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:04:18,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 511.47 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 23.0 MB in the end (delta: -268.9 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:18,685 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.05 ms. Allocated memory is still 46.1 MB. Free memory was 22.9 MB in the beginning and 21.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:18,686 INFO L168 Benchmark]: Boogie Preprocessor took 88.99 ms. Allocated memory is still 46.1 MB. Free memory was 21.1 MB in the beginning and 30.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:18,687 INFO L168 Benchmark]: RCFGBuilder took 685.95 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 30.7 MB in the beginning and 30.5 MB in the end (delta: 206.6 kB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:18,688 INFO L168 Benchmark]: TraceAbstraction took 613.00 ms. Allocated memory is still 56.6 MB. Free memory was 30.1 MB in the beginning and 38.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:18,688 INFO L168 Benchmark]: Witness Printer took 6.13 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 37.9 MB in the end (delta: 293.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:04:18,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 37.7 MB. Free memory was 17.9 MB in the beginning and 17.9 MB in the end (delta: 22.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 511.47 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 23.0 MB in the end (delta: -268.9 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.05 ms. Allocated memory is still 46.1 MB. Free memory was 22.9 MB in the beginning and 21.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.99 ms. Allocated memory is still 46.1 MB. Free memory was 21.1 MB in the beginning and 30.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 685.95 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 30.7 MB in the beginning and 30.5 MB in the end (delta: 206.6 kB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 613.00 ms. Allocated memory is still 56.6 MB. Free memory was 30.1 MB in the beginning and 38.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Witness Printer took 6.13 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 37.9 MB in the end (delta: 293.6 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 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) == 0 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L107] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_0730b.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 15:04:21,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 15:04:21,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 15:04:21,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 15:04:21,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 15:04:21,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 15:04:21,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 15:04:21,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 15:04:21,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 15:04:21,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 15:04:21,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 15:04:21,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 15:04:21,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 15:04:21,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 15:04:21,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 15:04:21,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 15:04:21,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 15:04:21,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 15:04:21,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 15:04:21,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 15:04:21,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 15:04:21,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 15:04:21,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 15:04:21,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 15:04:21,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 15:04:21,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 15:04:21,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 15:04:21,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 15:04:21,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 15:04:21,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 15:04:21,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 15:04:21,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 15:04:21,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 15:04:21,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 15:04:21,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 15:04:21,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 15:04:21,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 15:04:21,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 15:04:21,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 15:04:21,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 15:04:21,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 15:04:21,435 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 15:04:21,465 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 15:04:21,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 15:04:21,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 15:04:21,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 15:04:21,468 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 15:04:21,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 15:04:21,472 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 15:04:21,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 15:04:21,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 15:04:21,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 15:04:21,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 15:04:21,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 15:04:21,474 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 15:04:21,474 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 15:04:21,474 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 15:04:21,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 15:04:21,475 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 15:04:21,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 15:04:21,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 15:04:21,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 15:04:21,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 15:04:21,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 15:04:21,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 15:04:21,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 15:04:21,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 15:04:21,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 15:04:21,478 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 15:04:21,478 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 15:04:21,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 15:04:21,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 15:04:21,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 15:04:21,479 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c929687e1048988919d423afa09e6828bbc6230 [2020-11-29 15:04:21,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 15:04:21,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 15:04:21,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 15:04:21,903 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 15:04:21,904 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 15:04:21,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-11-29 15:04:22,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c67b75b5/0cbb4b2873dc4bb882df88fe17852495/FLAGf2eda6107 [2020-11-29 15:04:22,775 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 15:04:22,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-11-29 15:04:22,787 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c67b75b5/0cbb4b2873dc4bb882df88fe17852495/FLAGf2eda6107 [2020-11-29 15:04:23,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c67b75b5/0cbb4b2873dc4bb882df88fe17852495 [2020-11-29 15:04:23,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 15:04:23,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 15:04:23,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 15:04:23,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 15:04:23,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 15:04:23,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:04:23" (1/1) ... [2020-11-29 15:04:23,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c1f52c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23, skipping insertion in model container [2020-11-29 15:04:23,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:04:23" (1/1) ... [2020-11-29 15:04:23,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 15:04:23,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 15:04:23,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:04:23,409 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 15:04:23,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:04:23,476 INFO L208 MainTranslator]: Completed translation [2020-11-29 15:04:23,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23 WrapperNode [2020-11-29 15:04:23,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 15:04:23,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 15:04:23,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 15:04:23,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 15:04:23,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23" (1/1) ... [2020-11-29 15:04:23,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23" (1/1) ... [2020-11-29 15:04:23,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 15:04:23,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 15:04:23,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 15:04:23,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 15:04:23,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23" (1/1) ... [2020-11-29 15:04:23,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23" (1/1) ... [2020-11-29 15:04:23,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23" (1/1) ... [2020-11-29 15:04:23,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23" (1/1) ... [2020-11-29 15:04:23,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23" (1/1) ... [2020-11-29 15:04:23,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23" (1/1) ... [2020-11-29 15:04:23,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23" (1/1) ... [2020-11-29 15:04:23,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 15:04:23,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 15:04:23,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 15:04:23,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 15:04:23,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23" (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 15:04:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 15:04:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 15:04:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 15:04:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 15:04:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 15:04:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 15:04:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 15:04:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 15:04:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 15:04:26,186 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 15:04:26,186 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 15:04:26,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:26 BoogieIcfgContainer [2020-11-29 15:04:26,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 15:04:26,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 15:04:26,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 15:04:26,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 15:04:26,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:04:23" (1/3) ... [2020-11-29 15:04:26,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6beaa869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:04:26, skipping insertion in model container [2020-11-29 15:04:26,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:04:23" (2/3) ... [2020-11-29 15:04:26,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6beaa869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:04:26, skipping insertion in model container [2020-11-29 15:04:26,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:26" (3/3) ... [2020-11-29 15:04:26,199 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2020-11-29 15:04:26,220 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 15:04:26,225 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 15:04:26,243 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 15:04:26,285 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 15:04:26,286 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 15:04:26,286 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 15:04:26,286 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 15:04:26,286 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 15:04:26,287 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 15:04:26,287 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 15:04:26,287 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 15:04:26,302 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 15:04:26,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 15:04:26,309 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:04:26,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:04:26,310 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:04:26,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:04:26,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-11-29 15:04:26,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:04:26,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092746864] [2020-11-29 15:04:26,333 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 15:04:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:04:26,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 15:04:26,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:04:26,618 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 15:04:26,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:04:26,630 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 15:04:26,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092746864] [2020-11-29 15:04:26,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:04:26,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 15:04:26,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886026974] [2020-11-29 15:04:26,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 15:04:26,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:04:26,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 15:04:26,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:04:26,659 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 15:04:26,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:04:26,682 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-11-29 15:04:26,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 15:04:26,684 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 15:04:26,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:04:26,695 INFO L225 Difference]: With dead ends: 73 [2020-11-29 15:04:26,695 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 15:04:26,699 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 15:04:26,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 15:04:26,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 15:04:26,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 15:04:26,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-11-29 15:04:26,742 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-11-29 15:04:26,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:04:26,742 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-11-29 15:04:26,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 15:04:26,743 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-11-29 15:04:26,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 15:04:26,744 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:04:26,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:04:26,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 15:04:26,958 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:04:26,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:04:26,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-11-29 15:04:26,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:04:26,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796981714] [2020-11-29 15:04:26,961 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 15:04:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:04:27,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 15:04:27,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:04:27,346 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 15:04:27,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:04:27,493 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 15:04:27,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796981714] [2020-11-29 15:04:27,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:04:27,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 15:04:27,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734121919] [2020-11-29 15:04:27,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 15:04:27,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:04:27,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 15:04:27,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 15:04:27,498 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2020-11-29 15:04:27,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:04:27,628 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2020-11-29 15:04:27,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 15:04:27,629 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-11-29 15:04:27,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:04:27,630 INFO L225 Difference]: With dead ends: 43 [2020-11-29 15:04:27,630 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 15:04:27,632 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 15:04:27,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 15:04:27,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 15:04:27,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 15:04:27,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-29 15:04:27,637 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2020-11-29 15:04:27,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:04:27,637 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-29 15:04:27,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 15:04:27,637 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-29 15:04:27,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 15:04:27,638 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:04:27,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:04:27,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 15:04:27,854 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:04:27,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:04:27,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2020-11-29 15:04:27,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:04:27,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997984113] [2020-11-29 15:04:27,863 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 15:04:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:04:27,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 15:04:27,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:04:28,078 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 15:04:28,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:04:28,151 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 15:04:28,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997984113] [2020-11-29 15:04:28,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:04:28,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-11-29 15:04:28,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86994432] [2020-11-29 15:04:28,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 15:04:28,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:04:28,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 15:04:28,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-29 15:04:28,155 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2020-11-29 15:04:28,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:04:28,323 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-11-29 15:04:28,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 15:04:28,324 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-11-29 15:04:28,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:04:28,325 INFO L225 Difference]: With dead ends: 19 [2020-11-29 15:04:28,325 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 15:04:28,326 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 15:04:28,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 15:04:28,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 15:04:28,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 15:04:28,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-29 15:04:28,331 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-11-29 15:04:28,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:04:28,332 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-29 15:04:28,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 15:04:28,332 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-29 15:04:28,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 15:04:28,333 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:04:28,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:04:28,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 15:04:28,545 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:04:28,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:04:28,546 INFO L82 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2020-11-29 15:04:28,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:04:28,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479083678] [2020-11-29 15:04:28,548 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 15:04:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:04:28,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 15:04:28,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:04:28,814 INFO L626 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 15:04:28,907 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 15:04:28,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:04:29,312 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 15:04:29,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479083678] [2020-11-29 15:04:29,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:04:29,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-11-29 15:04:29,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152918992] [2020-11-29 15:04:29,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-29 15:04:29,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:04:29,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-29 15:04:29,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-11-29 15:04:29,316 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 14 states. [2020-11-29 15:04:29,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:04:29,722 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-11-29 15:04:29,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 15:04:29,723 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-11-29 15:04:29,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:04:29,731 INFO L225 Difference]: With dead ends: 16 [2020-11-29 15:04:29,731 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 15:04:29,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-29 15:04:29,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 15:04:29,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 15:04:29,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 15:04:29,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 15:04:29,734 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-29 15:04:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:04:29,734 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 15:04:29,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-29 15:04:29,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 15:04:29,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 15:04:29,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 15:04:29,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 15:04:30,149 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2020-11-29 15:04:30,149 INFO L262 CegarLoopResult]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2020-11-29 15:04:30,149 INFO L262 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-11-29 15:04:30,149 INFO L262 CegarLoopResult]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2020-11-29 15:04:30,149 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 15:04:30,149 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 15:04:30,150 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 15:04:30,150 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 15:04:30,150 INFO L262 CegarLoopResult]: For program point L28(lines 28 29) no Hoare annotation was computed. [2020-11-29 15:04:30,150 INFO L262 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-11-29 15:04:30,150 INFO L258 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: (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)) (_ +zero 8 24)))) |ULTIMATE.start_main_#t~short16| (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (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)) (_ +zero 8 24))) [2020-11-29 15:04:30,150 INFO L262 CegarLoopResult]: For program point L86-3(lines 86 90) no Hoare annotation was computed. [2020-11-29 15:04:30,150 INFO L262 CegarLoopResult]: For program point L37(lines 37 41) no Hoare annotation was computed. [2020-11-29 15:04:30,151 INFO L262 CegarLoopResult]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2020-11-29 15:04:30,151 INFO L262 CegarLoopResult]: For program point L54(lines 54 58) no Hoare annotation was computed. [2020-11-29 15:04:30,151 INFO L262 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-11-29 15:04:30,152 INFO L262 CegarLoopResult]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2020-11-29 15:04:30,152 INFO L258 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) [2020-11-29 15:04:30,152 INFO L262 CegarLoopResult]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2020-11-29 15:04:30,152 INFO L265 CegarLoopResult]: At program point L112(lines 95 113) the Hoare annotation is: true [2020-11-29 15:04:30,152 INFO L262 CegarLoopResult]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2020-11-29 15:04:30,153 INFO L258 CegarLoopResult]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2020-11-29 15:04:30,153 INFO L262 CegarLoopResult]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2020-11-29 15:04:30,153 INFO L262 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-11-29 15:04:30,153 INFO L258 CegarLoopResult]: At program point L80(lines 16 81) the Hoare annotation is: (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)) (_ +zero 8 24)))) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= (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)) (_ +zero 8 24))) [2020-11-29 15:04:30,154 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-11-29 15:04:30,154 INFO L262 CegarLoopResult]: For program point L65(lines 65 71) no Hoare annotation was computed. [2020-11-29 15:04:30,154 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 15:04:30,154 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 15:04:30,154 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-29 15:04:30,155 INFO L262 CegarLoopResult]: For program point L107-2(lines 107 110) no Hoare annotation was computed. [2020-11-29 15:04:30,155 INFO L262 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-11-29 15:04:30,155 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 15:04:30,155 INFO L262 CegarLoopResult]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2020-11-29 15:04:30,155 INFO L258 CegarLoopResult]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2020-11-29 15:04:30,156 INFO L262 CegarLoopResult]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2020-11-29 15:04:30,156 INFO L262 CegarLoopResult]: For program point L67(lines 67 70) no Hoare annotation was computed. [2020-11-29 15:04:30,156 INFO L258 CegarLoopResult]: At program point L92(lines 83 93) the Hoare annotation is: (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)) (_ +zero 8 24)))) |ULTIMATE.start_main_#t~short16| (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (_ +zero 8 24) (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))) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (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)) (_ +zero 8 24))) [2020-11-29 15:04:30,164 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,165 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,166 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,166 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,175 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,181 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,182 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:04:30 BoogieIcfgContainer [2020-11-29 15:04:30,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 15:04:30,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 15:04:30,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 15:04:30,188 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 15:04:30,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:04:26" (3/4) ... [2020-11-29 15:04:30,192 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 15:04:30,205 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-29 15:04:30,206 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 15:04:30,206 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 15:04:30,207 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 15:04:30,237 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]) == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2020-11-29 15:04:30,238 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]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2020-11-29 15:04:30,239 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]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == 0bv32) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2020-11-29 15:04:30,276 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-29 15:04:30,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 15:04:30,279 INFO L168 Benchmark]: Toolchain (without parser) took 7172.14 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.7 MB in the beginning and 20.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:30,279 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 46.1 MB. Free memory was 27.0 MB in the beginning and 26.9 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:04:30,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.10 ms. Allocated memory is still 46.1 MB. Free memory was 23.1 MB in the beginning and 22.6 MB in the end (delta: 495.9 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:30,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.52 ms. Allocated memory is still 46.1 MB. Free memory was 22.6 MB in the beginning and 20.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:30,282 INFO L168 Benchmark]: Boogie Preprocessor took 73.39 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 20.8 MB in the beginning and 41.1 MB in the end (delta: -20.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:30,282 INFO L168 Benchmark]: RCFGBuilder took 2580.80 ms. Allocated memory is still 56.6 MB. Free memory was 41.1 MB in the beginning and 33.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:30,283 INFO L168 Benchmark]: TraceAbstraction took 3996.05 ms. Allocated memory is still 56.6 MB. Free memory was 32.7 MB in the beginning and 24.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:30,284 INFO L168 Benchmark]: Witness Printer took 89.41 ms. Allocated memory is still 56.6 MB. Free memory was 24.6 MB in the beginning and 20.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:04:30,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 46.1 MB. Free memory was 27.0 MB in the beginning and 26.9 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 364.10 ms. Allocated memory is still 46.1 MB. Free memory was 23.1 MB in the beginning and 22.6 MB in the end (delta: 495.9 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.52 ms. Allocated memory is still 46.1 MB. Free memory was 22.6 MB in the beginning and 20.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.39 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 20.8 MB in the beginning and 41.1 MB in the end (delta: -20.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2580.80 ms. Allocated memory is still 56.6 MB. Free memory was 41.1 MB in the beginning and 33.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3996.05 ms. Allocated memory is still 56.6 MB. Free memory was 32.7 MB in the beginning and 24.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Witness Printer took 89.41 ms. Allocated memory is still 56.6 MB. Free memory was 24.6 MB in the beginning and 20.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 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 15:04:30,300 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,301 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,301 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,301 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,302 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,302 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,302 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,303 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]) == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 83]: Loop Invariant [2020-11-29 15:04:30,304 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,304 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,304 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,304 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,305 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,306 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,306 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,306 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]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == 0bv32) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: x == ~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 15:04:30,308 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,308 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,309 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,309 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-11-29 15:04:30,321 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]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, 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, 1.2s 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, 129 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 10 QuantifiedInterpolants, 4061 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...