./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd6800513a0c85eb15605681f4c7c21ff95d3a8c ........................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd6800513a0c85eb15605681f4c7c21ff95d3a8c .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:14:16,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:14:16,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:14:16,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:14:16,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:14:16,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:14:16,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:14:16,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:14:16,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:14:16,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:14:16,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:14:16,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:14:16,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:14:16,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:14:16,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:14:16,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:14:16,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:14:16,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:14:16,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:14:16,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:14:16,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:14:16,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:14:16,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:14:16,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:14:16,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:14:16,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:14:16,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:14:16,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:14:16,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:14:16,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:14:16,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:14:16,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:14:16,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:14:16,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:14:16,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:14:16,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:14:16,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:14:16,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:14:16,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:14:16,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:14:16,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:14:16,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:14:16,442 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:14:16,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:14:16,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:14:16,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:14:16,446 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:14:16,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:14:16,447 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:14:16,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:14:16,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:14:16,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:14:16,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:14:16,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:14:16,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:14:16,450 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:14:16,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:14:16,451 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:14:16,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:14:16,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:14:16,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:14:16,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:14:16,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:14:16,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:14:16,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:14:16,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:14:16,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:14:16,454 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:14:16,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:14:16,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:14:16,455 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:14:16,455 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd6800513a0c85eb15605681f4c7c21ff95d3a8c [2020-12-01 15:14:16,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:14:16,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:14:16,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:14:16,879 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:14:16,881 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:14:16,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-12-01 15:14:17,011 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/data/6c571ff34/ba4b5a390f4c4e019ad455df73285a1f/FLAGd5491c1c7 [2020-12-01 15:14:17,904 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:14:17,905 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-12-01 15:14:17,921 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/data/6c571ff34/ba4b5a390f4c4e019ad455df73285a1f/FLAGd5491c1c7 [2020-12-01 15:14:18,190 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/data/6c571ff34/ba4b5a390f4c4e019ad455df73285a1f [2020-12-01 15:14:18,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:14:18,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:14:18,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:14:18,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:14:18,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:14:18,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:14:18" (1/1) ... [2020-12-01 15:14:18,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703485cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:18, skipping insertion in model container [2020-12-01 15:14:18,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:14:18" (1/1) ... [2020-12-01 15:14:18,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:14:18,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:14:18,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:14:18,553 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:14:18,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:14:18,638 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:14:18,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:18 WrapperNode [2020-12-01 15:14:18,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:14:18,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:14:18,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:14:18,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:14:18,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:18" (1/1) ... [2020-12-01 15:14:18,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:18" (1/1) ... [2020-12-01 15:14:18,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:14:18,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:14:18,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:14:18,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:14:18,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:18" (1/1) ... [2020-12-01 15:14:18,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:18" (1/1) ... [2020-12-01 15:14:18,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:18" (1/1) ... [2020-12-01 15:14:18,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:18" (1/1) ... [2020-12-01 15:14:18,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:18" (1/1) ... [2020-12-01 15:14:18,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:18" (1/1) ... [2020-12-01 15:14:18,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:18" (1/1) ... [2020-12-01 15:14:18,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:14:18,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:14:18,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:14:18,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:14:18,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/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 [2020-12-01 15:14:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:14:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:14:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 15:14:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:14:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 15:14:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:14:18,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:14:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:14:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:14:19,913 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:14:19,914 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-12-01 15:14:19,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:14:19 BoogieIcfgContainer [2020-12-01 15:14:19,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:14:19,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:14:19,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:14:19,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:14:19,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:14:18" (1/3) ... [2020-12-01 15:14:19,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d28676b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:14:19, skipping insertion in model container [2020-12-01 15:14:19,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:18" (2/3) ... [2020-12-01 15:14:19,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d28676b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:14:19, skipping insertion in model container [2020-12-01 15:14:19,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:14:19" (3/3) ... [2020-12-01 15:14:19,929 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2020-12-01 15:14:19,948 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:14:19,953 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:14:19,981 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:14:20,014 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:14:20,015 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:14:20,015 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:14:20,015 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:14:20,015 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:14:20,016 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:14:20,016 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:14:20,016 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:14:20,061 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-12-01 15:14:20,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:14:20,069 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:14:20,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:14:20,071 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:14:20,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:14:20,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2020-12-01 15:14:20,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:14:20,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900566430] [2020-12-01 15:14:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:14:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:14:20,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:14:20,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900566430] [2020-12-01 15:14:20,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:14:20,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:14:20,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390221074] [2020-12-01 15:14:20,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:14:20,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:14:20,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:14:20,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:14:20,302 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2020-12-01 15:14:20,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:14:20,334 INFO L93 Difference]: Finished difference Result 151 states and 249 transitions. [2020-12-01 15:14:20,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:14:20,336 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-01 15:14:20,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:14:20,350 INFO L225 Difference]: With dead ends: 151 [2020-12-01 15:14:20,351 INFO L226 Difference]: Without dead ends: 73 [2020-12-01 15:14:20,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:14:20,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-12-01 15:14:20,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-12-01 15:14:20,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-01 15:14:20,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2020-12-01 15:14:20,407 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2020-12-01 15:14:20,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:14:20,408 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2020-12-01 15:14:20,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:14:20,409 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2020-12-01 15:14:20,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:14:20,410 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:14:20,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:14:20,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:14:20,411 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:14:20,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:14:20,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2020-12-01 15:14:20,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:14:20,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590204405] [2020-12-01 15:14:20,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:14:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:14:20,469 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:14:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:14:20,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:14:20,563 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:14:20,563 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:14:20,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:14:20,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:14:20 BoogieIcfgContainer [2020-12-01 15:14:20,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:14:20,654 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:14:20,654 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:14:20,655 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:14:20,655 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:14:19" (3/4) ... [2020-12-01 15:14:20,660 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:14:20,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:14:20,665 INFO L168 Benchmark]: Toolchain (without parser) took 2465.87 ms. Allocated memory is still 90.2 MB. Free memory was 63.9 MB in the beginning and 45.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:14:20,666 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 73.4 MB. Free memory was 43.0 MB in the beginning and 42.9 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:14:20,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.57 ms. Allocated memory is still 90.2 MB. Free memory was 63.7 MB in the beginning and 50.4 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:14:20,669 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.56 ms. Allocated memory is still 90.2 MB. Free memory was 50.3 MB in the beginning and 47.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:14:20,670 INFO L168 Benchmark]: Boogie Preprocessor took 56.96 ms. Allocated memory is still 90.2 MB. Free memory was 47.6 MB in the beginning and 45.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:14:20,672 INFO L168 Benchmark]: RCFGBuilder took 1145.88 ms. Allocated memory is still 90.2 MB. Free memory was 45.3 MB in the beginning and 40.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:14:20,673 INFO L168 Benchmark]: TraceAbstraction took 734.49 ms. Allocated memory is still 90.2 MB. Free memory was 40.4 MB in the beginning and 45.8 MB in the end (delta: -5.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:14:20,675 INFO L168 Benchmark]: Witness Printer took 6.96 ms. Allocated memory is still 90.2 MB. Free memory was 45.8 MB in the beginning and 45.4 MB in the end (delta: 433.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:14:20,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 73.4 MB. Free memory was 43.0 MB in the beginning and 42.9 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 440.57 ms. Allocated memory is still 90.2 MB. Free memory was 63.7 MB in the beginning and 50.4 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.56 ms. Allocated memory is still 90.2 MB. Free memory was 50.3 MB in the beginning and 47.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.96 ms. Allocated memory is still 90.2 MB. Free memory was 47.6 MB in the beginning and 45.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1145.88 ms. Allocated memory is still 90.2 MB. Free memory was 45.3 MB in the beginning and 40.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 734.49 ms. Allocated memory is still 90.2 MB. Free memory was 40.4 MB in the beginning and 45.8 MB in the end (delta: -5.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.96 ms. Allocated memory is still 90.2 MB. Free memory was 45.8 MB in the beginning and 45.4 MB in the end (delta: 433.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 183, overapproximation of someUnaryDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 100. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L83-L90] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L179] float x = 1.0f; [L93] float z, p, q, r, w, s, c, df; [L94] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L96] ieee_float_shape_type gf_u; [L97] gf_u.value = (x) [L98] EXPR gf_u.word [L98] (hx) = gf_u.word [L100] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L101] COND TRUE ix == 0x3f800000 VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L102] COND TRUE hx > 0 [L103] return 0.0; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L180] float res = __ieee754_acosf(x); [L183] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L183] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_0480.c", 3, "reach_error") VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 104 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=77occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-69874e2 [2020-12-01 15:14:24,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:14:24,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:14:24,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-01 15:14:24,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:14:24,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:14:24,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:14:24,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:14:24,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:14:24,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:14:24,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:14:24,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:14:24,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:14:24,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:14:24,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:14:24,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:14:24,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-01 15:14:24,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:14:24,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:14:24,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:14:24,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:14:24,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:14:24,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:14:24,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:14:24,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:14:24,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:14:24,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:14:24,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:14:24,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:14:24,274 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:14:24,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:14:24,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:14:24,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:14:24,277 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:14:24,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:14:24,278 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:14:24,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:14:24,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:14:24,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:14:24,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:14:24,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:14:24,279 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:14:24,280 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:14:24,283 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:14:24,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:14:24,284 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:14:24,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:14:24,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:14:24,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:14:24,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:14:24,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:14:24,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:14:24,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:14:24,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:14:24,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:14:24,287 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:14:24,287 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:14:24,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:14:24,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:14:24,289 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:14:24,290 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd6800513a0c85eb15605681f4c7c21ff95d3a8c [2020-12-01 15:14:24,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:14:24,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:14:24,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:14:24,970 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:14:24,971 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:14:24,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-12-01 15:14:25,069 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/data/ae15adcf4/b0314f95003f4214a39f4f5b5cd322d4/FLAGc45a07999 [2020-12-01 15:14:25,783 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:14:25,788 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-12-01 15:14:25,800 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/data/ae15adcf4/b0314f95003f4214a39f4f5b5cd322d4/FLAGc45a07999 [2020-12-01 15:14:26,075 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/data/ae15adcf4/b0314f95003f4214a39f4f5b5cd322d4 [2020-12-01 15:14:26,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:14:26,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:14:26,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:14:26,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:14:26,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:14:26,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:14:26" (1/1) ... [2020-12-01 15:14:26,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ef26fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:26, skipping insertion in model container [2020-12-01 15:14:26,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:14:26" (1/1) ... [2020-12-01 15:14:26,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:14:26,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:14:26,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:14:26,491 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:14:26,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:14:26,602 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:14:26,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:26 WrapperNode [2020-12-01 15:14:26,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:14:26,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:14:26,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:14:26,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:14:26,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:26" (1/1) ... [2020-12-01 15:14:26,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:26" (1/1) ... [2020-12-01 15:14:26,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:14:26,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:14:26,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:14:26,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:14:26,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:26" (1/1) ... [2020-12-01 15:14:26,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:26" (1/1) ... [2020-12-01 15:14:26,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:26" (1/1) ... [2020-12-01 15:14:26,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:26" (1/1) ... [2020-12-01 15:14:26,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:26" (1/1) ... [2020-12-01 15:14:26,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:26" (1/1) ... [2020-12-01 15:14:26,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:26" (1/1) ... [2020-12-01 15:14:26,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:14:26,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:14:26,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:14:26,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:14:26,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/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 [2020-12-01 15:14:26,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:14:26,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:14:26,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-01 15:14:26,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 15:14:26,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:14:26,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:14:26,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-01 15:14:26,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 15:14:26,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:14:45,457 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:14:45,458 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-12-01 15:14:45,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:14:45 BoogieIcfgContainer [2020-12-01 15:14:45,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:14:45,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:14:45,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:14:45,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:14:45,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:14:26" (1/3) ... [2020-12-01 15:14:45,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fbf8ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:14:45, skipping insertion in model container [2020-12-01 15:14:45,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:14:26" (2/3) ... [2020-12-01 15:14:45,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fbf8ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:14:45, skipping insertion in model container [2020-12-01 15:14:45,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:14:45" (3/3) ... [2020-12-01 15:14:45,474 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2020-12-01 15:14:45,495 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:14:45,505 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:14:45,526 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:14:45,566 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:14:45,567 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:14:45,567 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:14:45,567 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:14:45,568 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:14:45,568 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:14:45,568 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:14:45,568 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:14:45,589 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-12-01 15:14:45,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:14:45,597 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:14:45,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:14:45,598 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:14:45,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:14:45,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2020-12-01 15:14:45,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:14:45,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995980248] [2020-12-01 15:14:45,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/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 [2020-12-01 15:14:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:14:46,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 15:14:46,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:14:46,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:14:46,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:14:46,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:14:46,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995980248] [2020-12-01 15:14:46,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:14:46,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:14:46,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970274448] [2020-12-01 15:14:46,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:14:46,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:14:46,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:14:46,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:14:46,761 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2020-12-01 15:14:46,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:14:46,797 INFO L93 Difference]: Finished difference Result 151 states and 249 transitions. [2020-12-01 15:14:46,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:14:46,798 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-01 15:14:46,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:14:46,813 INFO L225 Difference]: With dead ends: 151 [2020-12-01 15:14:46,813 INFO L226 Difference]: Without dead ends: 73 [2020-12-01 15:14:46,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:14:46,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-12-01 15:14:46,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-12-01 15:14:46,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-01 15:14:46,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2020-12-01 15:14:46,872 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2020-12-01 15:14:46,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:14:46,873 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2020-12-01 15:14:46,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:14:46,873 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2020-12-01 15:14:46,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:14:46,875 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:14:46,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:14:47,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:14:47,101 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:14:47,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:14:47,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2020-12-01 15:14:47,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:14:47,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082557767] [2020-12-01 15:14:47,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/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 [2020-12-01 15:14:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:14:48,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:14:48,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:14:48,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:14:48,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:14:48,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:14:48,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082557767] [2020-12-01 15:14:48,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:14:48,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2020-12-01 15:14:48,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231482931] [2020-12-01 15:14:48,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:14:48,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:14:48,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:14:48,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:14:48,422 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand 5 states. [2020-12-01 15:14:58,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:14:58,216 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2020-12-01 15:14:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:14:58,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-01 15:14:58,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:14:58,435 INFO L225 Difference]: With dead ends: 85 [2020-12-01 15:14:58,435 INFO L226 Difference]: Without dead ends: 82 [2020-12-01 15:14:58,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:14:58,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-12-01 15:14:58,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2020-12-01 15:14:58,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-12-01 15:14:58,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2020-12-01 15:14:58,450 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 11 [2020-12-01 15:14:58,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:14:58,454 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2020-12-01 15:14:58,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:14:58,456 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2020-12-01 15:14:58,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:14:58,458 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:14:58,458 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:14:58,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:14:58,672 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:14:58,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:14:58,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1297366718, now seen corresponding path program 1 times [2020-12-01 15:14:58,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:14:58,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876372238] [2020-12-01 15:14:58,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/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 [2020-12-01 15:14:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:14:59,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:14:59,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:14:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:14:59,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:15:00,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:15:00,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876372238] [2020-12-01 15:15:00,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:15:00,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-12-01 15:15:00,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192730811] [2020-12-01 15:15:00,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:15:00,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:15:00,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:15:00,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:15:00,114 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand 6 states. [2020-12-01 15:15:04,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:15:04,748 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2020-12-01 15:15:04,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:15:04,907 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-01 15:15:04,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:15:04,908 INFO L225 Difference]: With dead ends: 93 [2020-12-01 15:15:04,908 INFO L226 Difference]: Without dead ends: 60 [2020-12-01 15:15:04,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:15:04,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-01 15:15:04,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2020-12-01 15:15:04,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-01 15:15:04,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2020-12-01 15:15:04,923 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 11 [2020-12-01 15:15:04,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:15:04,926 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2020-12-01 15:15:04,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:15:04,926 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2020-12-01 15:15:04,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:15:04,927 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:15:04,929 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:15:05,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:15:05,144 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:15:05,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:15:05,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1092345056, now seen corresponding path program 1 times [2020-12-01 15:15:05,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:15:05,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1641841330] [2020-12-01 15:15:05,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/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 [2020-12-01 15:15:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:15:06,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:15:06,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:15:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:15:06,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:15:06,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:15:06,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1641841330] [2020-12-01 15:15:06,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:15:06,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-12-01 15:15:06,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933537232] [2020-12-01 15:15:06,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:15:06,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:15:06,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:15:06,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:15:06,883 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand 8 states. [2020-12-01 15:15:07,347 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 19 [2020-12-01 15:15:07,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:15:07,388 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2020-12-01 15:15:07,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:15:07,389 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-12-01 15:15:07,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:15:07,390 INFO L225 Difference]: With dead ends: 58 [2020-12-01 15:15:07,390 INFO L226 Difference]: Without dead ends: 16 [2020-12-01 15:15:07,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:15:07,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-01 15:15:07,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-01 15:15:07,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-01 15:15:07,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-12-01 15:15:07,396 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-12-01 15:15:07,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:15:07,396 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-12-01 15:15:07,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:15:07,397 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-12-01 15:15:07,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 15:15:07,398 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:15:07,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:15:07,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-01 15:15:07,605 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:15:07,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:15:07,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1064969237, now seen corresponding path program 1 times [2020-12-01 15:15:07,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:15:07,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470554042] [2020-12-01 15:15:07,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-01 15:15:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:15:08,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 15:15:08,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:15:08,848 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:15:09,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:15:09,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:15:10,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:15:10,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470554042] [2020-12-01 15:15:10,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:15:10,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2020-12-01 15:15:10,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136080645] [2020-12-01 15:15:10,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-01 15:15:10,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:15:10,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-01 15:15:10,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-01 15:15:10,493 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 12 states. [2020-12-01 15:15:10,943 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-01 15:15:11,152 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-01 15:15:11,357 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-01 15:15:11,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:15:11,382 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-12-01 15:15:11,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:15:11,383 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-12-01 15:15:11,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:15:11,384 INFO L225 Difference]: With dead ends: 16 [2020-12-01 15:15:11,384 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:15:11,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-12-01 15:15:11,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:15:11,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:15:11,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:15:11,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:15:11,391 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-01 15:15:11,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:15:11,391 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:15:11,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-01 15:15:11,391 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:15:11,392 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:15:11,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-01 15:15:11,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:15:11,985 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-01 15:15:12,401 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-12-01 15:15:12,670 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-01 15:15:12,700 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2020-12-01 15:15:12,700 INFO L262 CegarLoopResult]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2020-12-01 15:15:12,700 INFO L258 CegarLoopResult]: At program point L52-6(lines 52 61) the Hoare annotation is: false [2020-12-01 15:15:12,700 INFO L262 CegarLoopResult]: For program point L52-7(lines 16 81) no Hoare annotation was computed. [2020-12-01 15:15:12,700 INFO L262 CegarLoopResult]: For program point L102(lines 102 105) no Hoare annotation was computed. [2020-12-01 15:15:12,700 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 15:15:12,701 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-12-01 15:15:12,701 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:15:12,701 INFO L262 CegarLoopResult]: For program point L37(lines 37 41) no Hoare annotation was computed. [2020-12-01 15:15:12,701 INFO L262 CegarLoopResult]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2020-12-01 15:15:12,709 INFO L262 CegarLoopResult]: For program point L37-3(lines 37 41) no Hoare annotation was computed. [2020-12-01 15:15:12,710 INFO L262 CegarLoopResult]: For program point L37-5(lines 37 41) no Hoare annotation was computed. [2020-12-01 15:15:12,710 INFO L262 CegarLoopResult]: For program point L54(lines 54 58) no Hoare annotation was computed. [2020-12-01 15:15:12,710 INFO L262 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-12-01 15:15:12,710 INFO L262 CegarLoopResult]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2020-12-01 15:15:12,710 INFO L258 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2020-12-01 15:15:12,710 INFO L262 CegarLoopResult]: For program point L54-3(lines 54 58) no Hoare annotation was computed. [2020-12-01 15:15:12,710 INFO L262 CegarLoopResult]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2020-12-01 15:15:12,710 INFO L262 CegarLoopResult]: For program point L54-5(lines 54 58) no Hoare annotation was computed. [2020-12-01 15:15:12,710 INFO L262 CegarLoopResult]: For program point L21-5(lines 21 25) no Hoare annotation was computed. [2020-12-01 15:15:12,711 INFO L258 CegarLoopResult]: At program point L21-6(lines 21 25) the Hoare annotation is: false [2020-12-01 15:15:12,711 INFO L262 CegarLoopResult]: For program point L21-7(lines 21 25) no Hoare annotation was computed. [2020-12-01 15:15:12,711 INFO L258 CegarLoopResult]: At program point L170(lines 161 171) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start_main_~res~0)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start___signbit_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (= (bvadd ULTIMATE.start___ieee754_acosf_~ix~1 (_ bv3229614080 32)) (_ bv0 32)) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short24|) [2020-12-01 15:15:12,711 INFO L262 CegarLoopResult]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2020-12-01 15:15:12,711 INFO L258 CegarLoopResult]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2020-12-01 15:15:12,711 INFO L262 CegarLoopResult]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2020-12-01 15:15:12,711 INFO L262 CegarLoopResult]: For program point L38-7(lines 38 39) no Hoare annotation was computed. [2020-12-01 15:15:12,712 INFO L258 CegarLoopResult]: At program point L38-8(lines 38 39) the Hoare annotation is: false [2020-12-01 15:15:12,712 INFO L262 CegarLoopResult]: For program point L38-9(lines 38 39) no Hoare annotation was computed. [2020-12-01 15:15:12,712 INFO L262 CegarLoopResult]: For program point L121(lines 121 158) no Hoare annotation was computed. [2020-12-01 15:15:12,712 INFO L262 CegarLoopResult]: For program point L138-1(lines 138 142) no Hoare annotation was computed. [2020-12-01 15:15:12,712 INFO L258 CegarLoopResult]: At program point L138-2(lines 138 142) the Hoare annotation is: false [2020-12-01 15:15:12,712 INFO L265 CegarLoopResult]: At program point L188(lines 173 189) the Hoare annotation is: true [2020-12-01 15:15:12,712 INFO L262 CegarLoopResult]: For program point L106(lines 106 108) no Hoare annotation was computed. [2020-12-01 15:15:12,712 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:15:12,712 INFO L258 CegarLoopResult]: At program point L157(lines 92 159) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (= (bvadd ULTIMATE.start___ieee754_acosf_~ix~1 (_ bv3229614080 32)) (_ bv0 32))) [2020-12-01 15:15:12,713 INFO L262 CegarLoopResult]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2020-12-01 15:15:12,713 INFO L258 CegarLoopResult]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2020-12-01 15:15:12,713 INFO L262 CegarLoopResult]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2020-12-01 15:15:12,713 INFO L262 CegarLoopResult]: For program point L75-5(lines 75 79) no Hoare annotation was computed. [2020-12-01 15:15:12,713 INFO L258 CegarLoopResult]: At program point L75-6(lines 75 79) the Hoare annotation is: false [2020-12-01 15:15:12,713 INFO L262 CegarLoopResult]: For program point L75-7(lines 75 79) no Hoare annotation was computed. [2020-12-01 15:15:12,713 INFO L262 CegarLoopResult]: For program point L109(lines 109 158) no Hoare annotation was computed. [2020-12-01 15:15:12,713 INFO L262 CegarLoopResult]: For program point L143(lines 143 147) no Hoare annotation was computed. [2020-12-01 15:15:12,713 INFO L262 CegarLoopResult]: For program point L110(lines 110 111) no Hoare annotation was computed. [2020-12-01 15:15:12,714 INFO L262 CegarLoopResult]: For program point L143-1(lines 133 158) no Hoare annotation was computed. [2020-12-01 15:15:12,714 INFO L262 CegarLoopResult]: For program point L143-2(lines 143 147) no Hoare annotation was computed. [2020-12-01 15:15:12,714 INFO L262 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-12-01 15:15:12,714 INFO L262 CegarLoopResult]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2020-12-01 15:15:12,714 INFO L262 CegarLoopResult]: For program point L44-3(lines 44 45) no Hoare annotation was computed. [2020-12-01 15:15:12,714 INFO L262 CegarLoopResult]: For program point L44-5(lines 44 45) no Hoare annotation was computed. [2020-12-01 15:15:12,714 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:15:12,714 INFO L262 CegarLoopResult]: For program point L28(lines 28 29) no Hoare annotation was computed. [2020-12-01 15:15:12,714 INFO L262 CegarLoopResult]: For program point L28-1(lines 28 29) no Hoare annotation was computed. [2020-12-01 15:15:12,714 INFO L262 CegarLoopResult]: For program point L95-1(lines 95 99) no Hoare annotation was computed. [2020-12-01 15:15:12,715 INFO L258 CegarLoopResult]: At program point L95-2(lines 95 99) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) [2020-12-01 15:15:12,715 INFO L262 CegarLoopResult]: For program point L95-3(lines 95 99) no Hoare annotation was computed. [2020-12-01 15:15:12,715 INFO L262 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-12-01 15:15:12,715 INFO L262 CegarLoopResult]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2020-12-01 15:15:12,715 INFO L258 CegarLoopResult]: At program point L80(lines 16 81) the Hoare annotation is: false [2020-12-01 15:15:12,715 INFO L258 CegarLoopResult]: At program point L80-1(lines 16 81) the Hoare annotation is: false [2020-12-01 15:15:12,715 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-12-01 15:15:12,715 INFO L262 CegarLoopResult]: For program point L31-1(lines 31 32) no Hoare annotation was computed. [2020-12-01 15:15:12,715 INFO L262 CegarLoopResult]: For program point L164-1(lines 164 168) no Hoare annotation was computed. [2020-12-01 15:15:12,724 INFO L258 CegarLoopResult]: At program point L164-2(lines 164 168) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start_main_~res~0)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start___signbit_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (= (bvadd ULTIMATE.start___ieee754_acosf_~ix~1 (_ bv3229614080 32)) (_ bv0 32)) |ULTIMATE.start_main_#t~short24|) [2020-12-01 15:15:12,725 INFO L262 CegarLoopResult]: For program point L65(lines 65 71) no Hoare annotation was computed. [2020-12-01 15:15:12,725 INFO L262 CegarLoopResult]: For program point L164-3(lines 164 168) no Hoare annotation was computed. [2020-12-01 15:15:12,725 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:15:12,725 INFO L262 CegarLoopResult]: For program point L65-2(lines 65 71) no Hoare annotation was computed. [2020-12-01 15:15:12,725 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:15:12,725 INFO L262 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-12-01 15:15:12,726 INFO L262 CegarLoopResult]: For program point L33-1(lines 33 34) no Hoare annotation was computed. [2020-12-01 15:15:12,726 INFO L262 CegarLoopResult]: For program point L67(lines 67 70) no Hoare annotation was computed. [2020-12-01 15:15:12,726 INFO L262 CegarLoopResult]: For program point L67-3(lines 67 70) no Hoare annotation was computed. [2020-12-01 15:15:12,726 INFO L262 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-12-01 15:15:12,727 INFO L262 CegarLoopResult]: For program point L183-2(lines 183 186) no Hoare annotation was computed. [2020-12-01 15:15:12,727 INFO L262 CegarLoopResult]: For program point L101(lines 101 108) no Hoare annotation was computed. [2020-12-01 15:15:12,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,751 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,751 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,753 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,758 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,758 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,761 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,762 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,762 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,762 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,762 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,763 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,769 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,769 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,772 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,773 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,773 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,773 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,773 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:15:12 BoogieIcfgContainer [2020-12-01 15:15:12,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:15:12,785 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:15:12,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:15:12,787 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:15:12,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:14:45" (3/4) ... [2020-12-01 15:15:12,791 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:15:12,817 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2020-12-01 15:15:12,817 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-01 15:15:12,818 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:15:12,819 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:15:12,845 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x) [2020-12-01 15:15:12,845 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32 [2020-12-01 15:15:12,846 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-12-01 15:15:12,847 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-12-01 15:15:12,965 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e02355cd-621c-4336-924a-eff6fd30b718/bin/uautomizer/witness.graphml [2020-12-01 15:15:12,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:15:12,967 INFO L168 Benchmark]: Toolchain (without parser) took 46883.74 ms. Allocated memory is still 71.3 MB. Free memory was 50.2 MB in the beginning and 38.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:15:12,967 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 52.4 MB. Free memory was 33.5 MB in the beginning and 33.5 MB in the end (delta: 73.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:15:12,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.60 ms. Allocated memory is still 71.3 MB. Free memory was 50.0 MB in the beginning and 50.2 MB in the end (delta: -183.2 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:15:12,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.25 ms. Allocated memory is still 71.3 MB. Free memory was 50.2 MB in the beginning and 47.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:15:12,969 INFO L168 Benchmark]: Boogie Preprocessor took 71.79 ms. Allocated memory is still 71.3 MB. Free memory was 47.4 MB in the beginning and 44.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:15:12,970 INFO L168 Benchmark]: RCFGBuilder took 18701.85 ms. Allocated memory is still 71.3 MB. Free memory was 44.9 MB in the beginning and 43.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:15:12,970 INFO L168 Benchmark]: TraceAbstraction took 27320.70 ms. Allocated memory is still 71.3 MB. Free memory was 43.0 MB in the beginning and 46.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:15:12,970 INFO L168 Benchmark]: Witness Printer took 181.39 ms. Allocated memory is still 71.3 MB. Free memory was 46.7 MB in the beginning and 38.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:15:12,973 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 52.4 MB. Free memory was 33.5 MB in the beginning and 33.5 MB in the end (delta: 73.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 515.60 ms. Allocated memory is still 71.3 MB. Free memory was 50.0 MB in the beginning and 50.2 MB in the end (delta: -183.2 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.25 ms. Allocated memory is still 71.3 MB. Free memory was 50.2 MB in the beginning and 47.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.79 ms. Allocated memory is still 71.3 MB. Free memory was 47.4 MB in the beginning and 44.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 18701.85 ms. Allocated memory is still 71.3 MB. Free memory was 44.9 MB in the beginning and 43.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27320.70 ms. Allocated memory is still 71.3 MB. Free memory was 43.0 MB in the beginning and 46.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. * Witness Printer took 181.39 ms. Allocated memory is still 71.3 MB. Free memory was 46.7 MB in the beginning and 38.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 92]: Loop Invariant [2020-12-01 15:15:12,987 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,987 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,987 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,989 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,995 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32 - InvariantResult [Line: 95]: Loop Invariant [2020-12-01 15:15:12,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 161]: Loop Invariant [2020-12-01 15:15:12,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:12,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,000 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,000 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,000 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,001 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,001 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 164]: Loop Invariant [2020-12-01 15:15:13,002 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,002 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,002 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,002 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,002 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,003 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,003 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,004 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,004 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 15:15:13,004 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 282 SDtfs, 226 SDslu, 275 SDs, 0 SdLazy, 42 SolverSat, 11 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 13.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 21 NumberOfFragments, 149 HoareAnnotationTreeSize, 16 FomulaSimplifications, 78 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 20 QuantifiedInterpolants, 4012 SizeOfPredicates, 29 NumberOfNonLiveVariables, 311 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...