./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c71a459772bdb184fdc6408fbdfc05dbcf613bc ................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c71a459772bdb184fdc6408fbdfc05dbcf613bc .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 04:48:43,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:48:43,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:48:43,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:48:43,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:48:43,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:48:43,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:48:43,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:48:43,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:48:43,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:48:43,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:48:43,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:48:43,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:48:43,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:48:43,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:48:43,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:48:43,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:48:43,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:48:43,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:48:43,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:48:43,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:48:43,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:48:43,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:48:43,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:48:43,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:48:43,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:48:43,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:48:43,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:48:43,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:48:43,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:48:43,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:48:43,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:48:43,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:48:43,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:48:43,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:48:43,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:48:43,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:48:43,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:48:43,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:48:43,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:48:43,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:48:43,442 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 04:48:43,474 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:48:43,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:48:43,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:48:43,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:48:43,490 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:48:43,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:48:43,490 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:48:43,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:48:43,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:48:43,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:48:43,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:48:43,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:48:43,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:48:43,492 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:48:43,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:48:43,493 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:48:43,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:48:43,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:48:43,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:48:43,494 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:48:43,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:48:43,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:48:43,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:48:43,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:48:43,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:48:43,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:48:43,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 04:48:43,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:48:43,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c71a459772bdb184fdc6408fbdfc05dbcf613bc [2019-11-20 04:48:43,716 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:48:43,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:48:43,734 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:48:43,736 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:48:43,736 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:48:43,737 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2019-11-20 04:48:43,810 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/data/2b1a485f1/225a3a5c52a848a282e013eae79071b3/FLAG316423ee5 [2019-11-20 04:48:44,262 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:48:44,263 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2019-11-20 04:48:44,280 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/data/2b1a485f1/225a3a5c52a848a282e013eae79071b3/FLAG316423ee5 [2019-11-20 04:48:44,641 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/data/2b1a485f1/225a3a5c52a848a282e013eae79071b3 [2019-11-20 04:48:44,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:48:44,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:48:44,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:48:44,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:48:44,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:48:44,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:48:44" (1/1) ... [2019-11-20 04:48:44,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@252b1bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:44, skipping insertion in model container [2019-11-20 04:48:44,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:48:44" (1/1) ... [2019-11-20 04:48:44,669 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:48:44,700 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:48:45,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:48:45,107 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:48:45,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:48:45,172 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:48:45,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:45 WrapperNode [2019-11-20 04:48:45,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:48:45,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:48:45,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:48:45,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:48:45,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:45" (1/1) ... [2019-11-20 04:48:45,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:45" (1/1) ... [2019-11-20 04:48:45,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:48:45,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:48:45,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:48:45,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:48:45,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:45" (1/1) ... [2019-11-20 04:48:45,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:45" (1/1) ... [2019-11-20 04:48:45,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:45" (1/1) ... [2019-11-20 04:48:45,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:45" (1/1) ... [2019-11-20 04:48:45,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:45" (1/1) ... [2019-11-20 04:48:45,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:45" (1/1) ... [2019-11-20 04:48:45,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:45" (1/1) ... [2019-11-20 04:48:45,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:48:45,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:48:45,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:48:45,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:48:45,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:48:45,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:48:45,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 04:48:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 04:48:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 04:48:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:48:45,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:48:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 04:48:45,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:48:45,798 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:48:45,798 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-20 04:48:45,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:48:45 BoogieIcfgContainer [2019-11-20 04:48:45,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:48:45,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:48:45,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:48:45,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:48:45,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:48:44" (1/3) ... [2019-11-20 04:48:45,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50bd2688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:48:45, skipping insertion in model container [2019-11-20 04:48:45,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:45" (2/3) ... [2019-11-20 04:48:45,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50bd2688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:48:45, skipping insertion in model container [2019-11-20 04:48:45,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:48:45" (3/3) ... [2019-11-20 04:48:45,822 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2019-11-20 04:48:45,834 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:48:45,841 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 04:48:45,858 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 04:48:45,894 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:48:45,894 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:48:45,894 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:48:45,894 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:48:45,895 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:48:45,895 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:48:45,895 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:48:45,895 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:48:45,915 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-20 04:48:45,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 04:48:45,921 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:48:45,922 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:48:45,923 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:48:45,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:48:45,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2019-11-20 04:48:45,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:48:45,936 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830887582] [2019-11-20 04:48:45,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:48:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:48:46,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:48:46,055 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830887582] [2019-11-20 04:48:46,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:48:46,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 04:48:46,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977200843] [2019-11-20 04:48:46,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 04:48:46,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:48:46,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 04:48:46,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:48:46,077 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-20 04:48:46,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:48:46,100 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-20 04:48:46,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 04:48:46,102 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-20 04:48:46,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:48:46,113 INFO L225 Difference]: With dead ends: 72 [2019-11-20 04:48:46,113 INFO L226 Difference]: Without dead ends: 34 [2019-11-20 04:48:46,116 INFO L630 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 [2019-11-20 04:48:46,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-20 04:48:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-20 04:48:46,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 04:48:46,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-20 04:48:46,156 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2019-11-20 04:48:46,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:48:46,157 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-20 04:48:46,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 04:48:46,157 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-20 04:48:46,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 04:48:46,158 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:48:46,158 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:48:46,159 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:48:46,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:48:46,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2019-11-20 04:48:46,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:48:46,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272491897] [2019-11-20 04:48:46,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:48:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:48:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:48:46,259 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:48:46,259 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 04:48:46,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:48:46 BoogieIcfgContainer [2019-11-20 04:48:46,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:48:46,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:48:46,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:48:46,297 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:48:46,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:48:45" (3/4) ... [2019-11-20 04:48:46,302 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 04:48:46,303 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:48:46,306 INFO L168 Benchmark]: Toolchain (without parser) took 1659.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -106.6 MB). Peak memory consumption was 4.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:46,306 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:48:46,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:46,308 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:46,309 INFO L168 Benchmark]: Boogie Preprocessor took 46.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:48:46,309 INFO L168 Benchmark]: RCFGBuilder took 521.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:46,310 INFO L168 Benchmark]: TraceAbstraction took 495.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:46,311 INFO L168 Benchmark]: Witness Printer took 5.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:48:46,315 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 527.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 521.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 495.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 106]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of bitwiseAnd at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 27. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L101] float x = 0.0f; [L15] float z; [L16] __uint32_t r, hx; [L17] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (ix) = gf_u.word [L24] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L26] COND TRUE !((hx) < 0x7f800000L) [L27] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L102] float res = __ieee754_sqrtf(x); [L105] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L105] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L106] __VERIFIER_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 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=37occurred 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, 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 0.1.24-678e011 [2019-11-20 04:48:48,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:48:48,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:48:48,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:48:48,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:48:48,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:48:48,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:48:48,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:48:48,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:48:48,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:48:48,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:48:48,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:48:48,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:48:48,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:48:48,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:48:48,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:48:48,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:48:48,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:48:48,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:48:48,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:48:48,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:48:48,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:48:48,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:48:48,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:48:48,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:48:48,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:48:48,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:48:48,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:48:48,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:48:48,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:48:48,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:48:48,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:48:48,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:48:48,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:48:48,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:48:48,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:48:48,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:48:48,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:48:48,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:48:48,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:48:48,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:48:48,932 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 04:48:48,953 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:48:48,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:48:48,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:48:48,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:48:48,956 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:48:48,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:48:48,957 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:48:48,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:48:48,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:48:48,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:48:48,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:48:48,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:48:48,959 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 04:48:48,959 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 04:48:48,959 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:48:48,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:48:48,960 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:48:48,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:48:48,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:48:48,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:48:48,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:48:48,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:48:48,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:48:48,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:48:48,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:48:48,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:48:48,963 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 04:48:48,963 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 04:48:48,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:48:48,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 04:48:48,964 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c71a459772bdb184fdc6408fbdfc05dbcf613bc [2019-11-20 04:48:49,360 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:48:49,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:48:49,389 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:48:49,391 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:48:49,392 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:48:49,393 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2019-11-20 04:48:49,466 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/data/af5a1243a/25446d98dcb942248f9794c40d9affb0/FLAGebac0534d [2019-11-20 04:48:50,027 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:48:50,028 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2019-11-20 04:48:50,037 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/data/af5a1243a/25446d98dcb942248f9794c40d9affb0/FLAGebac0534d [2019-11-20 04:48:50,336 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/data/af5a1243a/25446d98dcb942248f9794c40d9affb0 [2019-11-20 04:48:50,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:48:50,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:48:50,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:48:50,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:48:50,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:48:50,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:48:50" (1/1) ... [2019-11-20 04:48:50,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59738a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:50, skipping insertion in model container [2019-11-20 04:48:50,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:48:50" (1/1) ... [2019-11-20 04:48:50,363 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:48:50,387 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:48:50,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:48:50,649 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:48:50,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:48:50,722 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:48:50,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:50 WrapperNode [2019-11-20 04:48:50,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:48:50,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:48:50,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:48:50,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:48:50,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:50" (1/1) ... [2019-11-20 04:48:50,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:50" (1/1) ... [2019-11-20 04:48:50,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:48:50,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:48:50,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:48:50,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:48:50,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:50" (1/1) ... [2019-11-20 04:48:50,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:50" (1/1) ... [2019-11-20 04:48:50,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:50" (1/1) ... [2019-11-20 04:48:50,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:50" (1/1) ... [2019-11-20 04:48:50,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:50" (1/1) ... [2019-11-20 04:48:50,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:50" (1/1) ... [2019-11-20 04:48:50,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:50" (1/1) ... [2019-11-20 04:48:50,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:48:50,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:48:50,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:48:50,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:48:50,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:48:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:48:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 04:48:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 04:48:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:48:51,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:48:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 04:48:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 04:48:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:48:52,142 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:48:52,143 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-20 04:48:52,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:48:52 BoogieIcfgContainer [2019-11-20 04:48:52,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:48:52,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:48:52,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:48:52,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:48:52,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:48:50" (1/3) ... [2019-11-20 04:48:52,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e961498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:48:52, skipping insertion in model container [2019-11-20 04:48:52,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:50" (2/3) ... [2019-11-20 04:48:52,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e961498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:48:52, skipping insertion in model container [2019-11-20 04:48:52,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:48:52" (3/3) ... [2019-11-20 04:48:52,153 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2019-11-20 04:48:52,165 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:48:52,173 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 04:48:52,184 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 04:48:52,209 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:48:52,209 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:48:52,209 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:48:52,209 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:48:52,209 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:48:52,210 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:48:52,210 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:48:52,210 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:48:52,224 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-20 04:48:52,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 04:48:52,230 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:48:52,231 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:48:52,232 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:48:52,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:48:52,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2019-11-20 04:48:52,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:48:52,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588097650] [2019-11-20 04:48:52,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-20 04:48:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:48:52,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 04:48:52,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:48:52,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:48:52,469 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:48:52,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:48:52,474 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588097650] [2019-11-20 04:48:52,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:48:52,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 04:48:52,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805242654] [2019-11-20 04:48:52,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 04:48:52,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:48:52,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 04:48:52,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:48:52,495 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-20 04:48:52,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:48:52,521 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-20 04:48:52,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 04:48:52,523 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-20 04:48:52,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:48:52,536 INFO L225 Difference]: With dead ends: 72 [2019-11-20 04:48:52,536 INFO L226 Difference]: Without dead ends: 34 [2019-11-20 04:48:52,540 INFO L630 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 [2019-11-20 04:48:52,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-20 04:48:52,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-20 04:48:52,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 04:48:52,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-20 04:48:52,583 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2019-11-20 04:48:52,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:48:52,584 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-20 04:48:52,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 04:48:52,584 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-20 04:48:52,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 04:48:52,585 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:48:52,585 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:48:52,801 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 04:48:52,802 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:48:52,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:48:52,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2019-11-20 04:48:52,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:48:52,803 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662606404] [2019-11-20 04:48:52,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-20 04:48:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:48:53,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:48:53,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:48:53,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:48:53,112 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:48:53,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:48:53,222 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662606404] [2019-11-20 04:48:53,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:48:53,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 04:48:53,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583320] [2019-11-20 04:48:53,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:48:53,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:48:53,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:48:53,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:48:53,225 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2019-11-20 04:48:53,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:48:53,340 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-11-20 04:48:53,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:48:53,341 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-11-20 04:48:53,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:48:53,342 INFO L225 Difference]: With dead ends: 43 [2019-11-20 04:48:53,342 INFO L226 Difference]: Without dead ends: 16 [2019-11-20 04:48:53,344 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-20 04:48:53,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-20 04:48:53,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 04:48:53,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 04:48:53,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-11-20 04:48:53,349 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2019-11-20 04:48:53,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:48:53,350 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-11-20 04:48:53,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:48:53,350 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-11-20 04:48:53,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 04:48:53,351 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:48:53,351 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:48:53,561 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 04:48:53,562 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:48:53,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:48:53,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2019-11-20 04:48:53,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:48:53,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897870121] [2019-11-20 04:48:53,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-20 04:48:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:48:53,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 04:48:53,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:48:53,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:48:53,704 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:48:53,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:48:53,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:48:53,754 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897870121] [2019-11-20 04:48:53,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:48:53,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-20 04:48:53,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324155736] [2019-11-20 04:48:53,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:48:53,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:48:53,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:48:53,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:48:53,756 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2019-11-20 04:48:53,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:48:53,826 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-11-20 04:48:53,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:48:53,828 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-11-20 04:48:53,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:48:53,829 INFO L225 Difference]: With dead ends: 19 [2019-11-20 04:48:53,829 INFO L226 Difference]: Without dead ends: 16 [2019-11-20 04:48:53,830 INFO L630 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 [2019-11-20 04:48:53,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-20 04:48:53,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-20 04:48:53,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-20 04:48:53,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2019-11-20 04:48:53,841 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2019-11-20 04:48:53,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:48:53,843 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2019-11-20 04:48:53,843 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:48:53,843 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2019-11-20 04:48:53,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 04:48:53,845 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:48:53,846 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:48:54,046 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 04:48:54,047 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:48:54,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:48:54,047 INFO L82 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2019-11-20 04:48:54,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:48:54,048 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714171148] [2019-11-20 04:48:54,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-20 04:48:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:48:54,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 04:48:54,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:48:54,242 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:48:54,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:48:54,287 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:48:54,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:48:54,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:48:54,539 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714171148] [2019-11-20 04:48:54,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:48:54,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-11-20 04:48:54,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542319533] [2019-11-20 04:48:54,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 04:48:54,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:48:54,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 04:48:54,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-20 04:48:54,542 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 14 states. [2019-11-20 04:48:54,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:48:54,856 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-11-20 04:48:54,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 04:48:54,857 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2019-11-20 04:48:54,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:48:54,857 INFO L225 Difference]: With dead ends: 16 [2019-11-20 04:48:54,857 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 04:48:54,858 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-20 04:48:54,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 04:48:54,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 04:48:54,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 04:48:54,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 04:48:54,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-20 04:48:54,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:48:54,860 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:48:54,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 04:48:54,860 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:48:54,860 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 04:48:55,070 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 04:48:55,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 04:48:55,293 INFO L444 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2019-11-20 04:48:55,293 INFO L444 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2019-11-20 04:48:55,293 INFO L444 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-11-20 04:48:55,293 INFO L444 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2019-11-20 04:48:55,294 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) [2019-11-20 04:48:55,294 INFO L444 ceAbstractionStarter]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2019-11-20 04:48:55,294 INFO L447 ceAbstractionStarter]: At program point L110(lines 93 111) the Hoare annotation is: true [2019-11-20 04:48:55,294 INFO L444 ceAbstractionStarter]: For program point L36-2(lines 36 37) no Hoare annotation was computed. [2019-11-20 04:48:55,294 INFO L440 ceAbstractionStarter]: At program point L36-3(lines 36 37) the Hoare annotation is: false [2019-11-20 04:48:55,295 INFO L444 ceAbstractionStarter]: For program point L36-4(lines 36 37) no Hoare annotation was computed. [2019-11-20 04:48:55,295 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 04:48:55,295 INFO L444 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2019-11-20 04:48:55,295 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 04:48:55,295 INFO L440 ceAbstractionStarter]: At program point L78(lines 14 79) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (_ +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))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0))) (= (_ +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)))) [2019-11-20 04:48:55,296 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2019-11-20 04:48:55,296 INFO L444 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2019-11-20 04:48:55,296 INFO L444 ceAbstractionStarter]: For program point L105(line 105) no Hoare annotation was computed. [2019-11-20 04:48:55,296 INFO L444 ceAbstractionStarter]: For program point L105-2(lines 105 108) no Hoare annotation was computed. [2019-11-20 04:48:55,296 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2019-11-20 04:48:55,296 INFO L444 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2019-11-20 04:48:55,297 INFO L444 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2019-11-20 04:48:55,297 INFO L440 ceAbstractionStarter]: At program point L73-2(lines 73 77) the Hoare annotation is: false [2019-11-20 04:48:55,297 INFO L444 ceAbstractionStarter]: For program point L73-3(lines 73 77) no Hoare annotation was computed. [2019-11-20 04:48:55,300 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2019-11-20 04:48:55,300 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 04:48:55,300 INFO L440 ceAbstractionStarter]: At program point L90(lines 81 91) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +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)) (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (_ +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))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0))) (= (_ +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))) |ULTIMATE.start_main_#t~short9|) [2019-11-20 04:48:55,301 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2019-11-20 04:48:55,301 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 04:48:55,301 INFO L440 ceAbstractionStarter]: At program point L50-2(lines 50 59) the Hoare annotation is: false [2019-11-20 04:48:55,302 INFO L444 ceAbstractionStarter]: For program point L50-3(lines 14 79) no Hoare annotation was computed. [2019-11-20 04:48:55,302 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2019-11-20 04:48:55,302 INFO L444 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2019-11-20 04:48:55,303 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2019-11-20 04:48:55,304 INFO L444 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-11-20 04:48:55,307 INFO L440 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (_ +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))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0))) (= (_ +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))) |ULTIMATE.start_main_#t~short9|) [2019-11-20 04:48:55,307 INFO L444 ceAbstractionStarter]: For program point L84-3(lines 84 88) no Hoare annotation was computed. [2019-11-20 04:48:55,307 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2019-11-20 04:48:55,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,339 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,339 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,340 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,340 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,345 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,346 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,346 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,347 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,350 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,351 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,351 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,351 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,353 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,354 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,354 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,355 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,359 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,370 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,370 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,371 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:48:55 BoogieIcfgContainer [2019-11-20 04:48:55,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:48:55,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:48:55,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:48:55,378 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:48:55,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:48:52" (3/4) ... [2019-11-20 04:48:55,383 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 04:48:55,400 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-20 04:48:55,400 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 04:48:55,401 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 04:48:55,431 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~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]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) [2019-11-20 04:48:55,432 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~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]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2019-11-20 04:48:55,433 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~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]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2019-11-20 04:48:55,478 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7b5cc914-9693-4284-9d1a-6c5143013090/bin/uautomizer/witness.graphml [2019-11-20 04:48:55,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:48:55,481 INFO L168 Benchmark]: Toolchain (without parser) took 5136.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 960.4 MB in the beginning and 966.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 145.9 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:55,482 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:48:55,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.41 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 943.0 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:55,483 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:55,483 INFO L168 Benchmark]: Boogie Preprocessor took 42.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:48:55,484 INFO L168 Benchmark]: RCFGBuilder took 1217.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:55,484 INFO L168 Benchmark]: TraceAbstraction took 3231.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.1 MB in the end (delta: 143.2 MB). Peak memory consumption was 143.2 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:55,485 INFO L168 Benchmark]: Witness Printer took 101.68 ms. Allocated memory is still 1.2 GB. Free memory was 973.1 MB in the beginning and 966.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:55,488 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 378.41 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 943.0 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 158.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1217.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3231.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.1 MB in the end (delta: 143.2 MB). Peak memory consumption was 143.2 MB. Max. memory is 11.5 GB. * Witness Printer took 101.68 ms. Allocated memory is still 1.2 GB. Free memory was 973.1 MB in the beginning and 966.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.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: 106]: 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: 81]: Loop Invariant [2019-11-20 04:48:55,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~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]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant [2019-11-20 04:48:55,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,507 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,507 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~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]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 14]: Loop Invariant [2019-11-20 04:48:55,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,508 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2019-11-20 04:48:55,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~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]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 77 SDtfs, 114 SDslu, 55 SDs, 0 SdLazy, 51 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 10 QuantifiedInterpolants, 4061 SizeOfPredicates, 22 NumberOfNonLiveVariables, 128 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...