./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf16487f411039d120d72f1ea3eb73e7cb935c40 ................................................................................................................................................................................................................................................................................................................. 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_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf16487f411039d120d72f1ea3eb73e7cb935c40 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:45:42,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:45:42,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:45:42,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:45:42,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:45:42,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:45:42,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:45:42,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:45:42,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:45:42,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:45:42,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:45:42,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:45:42,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:45:42,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:45:42,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:45:42,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:45:42,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:45:42,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:45:42,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:45:42,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:45:42,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:45:42,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:45:42,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:45:42,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:45:42,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:45:42,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:45:42,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:45:42,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:45:42,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:45:42,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:45:42,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:45:42,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:45:42,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:45:42,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:45:42,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:45:42,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:45:42,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:45:42,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:45:42,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:45:42,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:45:42,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:45:42,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 10:45:42,272 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:45:42,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:45:42,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:45:42,273 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:45:42,273 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:45:42,273 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:45:42,273 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 10:45:42,273 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:45:42,274 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:45:42,274 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 10:45:42,274 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 10:45:42,274 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:45:42,274 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 10:45:42,274 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 10:45:42,274 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 10:45:42,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:45:42,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:45:42,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:45:42,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:45:42,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:45:42,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:45:42,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:45:42,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:45:42,276 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:45:42,276 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:45:42,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:45:42,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:45:42,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:45:42,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:45:42,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:45:42,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:45:42,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:45:42,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:45:42,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:45:42,277 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 10:45:42,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 10:45:42,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:45:42,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:45:42,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:45:42,278 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf16487f411039d120d72f1ea3eb73e7cb935c40 [2020-12-09 10:45:42,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:45:42,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:45:42,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:45:42,478 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:45:42,479 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:45:42,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2020-12-09 10:45:42,520 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/data/59d79c72d/5217372aa0724553b5f2c617776c1779/FLAGb9b330cd3 [2020-12-09 10:45:42,895 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:45:42,895 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2020-12-09 10:45:42,901 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/data/59d79c72d/5217372aa0724553b5f2c617776c1779/FLAGb9b330cd3 [2020-12-09 10:45:42,910 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/data/59d79c72d/5217372aa0724553b5f2c617776c1779 [2020-12-09 10:45:42,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:45:42,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:45:42,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:45:42,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:45:42,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:45:42,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:45:42" (1/1) ... [2020-12-09 10:45:42,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53487b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:42, skipping insertion in model container [2020-12-09 10:45:42,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:45:42" (1/1) ... [2020-12-09 10:45:42,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:45:42,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:45:43,105 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2020-12-09 10:45:43,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:45:43,117 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:45:43,156 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2020-12-09 10:45:43,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:45:43,173 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:45:43,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:43 WrapperNode [2020-12-09 10:45:43,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:45:43,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:45:43,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:45:43,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:45:43,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:43" (1/1) ... [2020-12-09 10:45:43,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:43" (1/1) ... [2020-12-09 10:45:43,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:45:43,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:45:43,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:45:43,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:45:43,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:43" (1/1) ... [2020-12-09 10:45:43,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:43" (1/1) ... [2020-12-09 10:45:43,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:43" (1/1) ... [2020-12-09 10:45:43,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:43" (1/1) ... [2020-12-09 10:45:43,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:43" (1/1) ... [2020-12-09 10:45:43,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:43" (1/1) ... [2020-12-09 10:45:43,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:43" (1/1) ... [2020-12-09 10:45:43,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:45:43,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:45:43,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:45:43,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:45:43,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/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 [2020-12-09 10:45:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 10:45:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:45:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 10:45:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 10:45:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 10:45:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:45:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:45:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 10:45:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 10:45:43,747 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:45:43,747 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2020-12-09 10:45:43,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:45:43 BoogieIcfgContainer [2020-12-09 10:45:43,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:45:43,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:45:43,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:45:43,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:45:43,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:45:42" (1/3) ... [2020-12-09 10:45:43,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4489c39a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:45:43, skipping insertion in model container [2020-12-09 10:45:43,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:43" (2/3) ... [2020-12-09 10:45:43,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4489c39a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:45:43, skipping insertion in model container [2020-12-09 10:45:43,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:45:43" (3/3) ... [2020-12-09 10:45:43,757 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270b.c [2020-12-09 10:45:43,770 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:45:43,773 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 10:45:43,784 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 10:45:43,806 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:45:43,806 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 10:45:43,806 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:45:43,806 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:45:43,806 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:45:43,807 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:45:43,807 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:45:43,807 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:45:43,820 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-12-09 10:45:43,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 10:45:43,825 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:45:43,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:45:43,826 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:45:43,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:45:43,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1724686161, now seen corresponding path program 1 times [2020-12-09 10:45:43,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:45:43,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134971785] [2020-12-09 10:45:43,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:45:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:45:43,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:45:43,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134971785] [2020-12-09 10:45:43,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:45:43,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:45:43,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228813010] [2020-12-09 10:45:43,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 10:45:43,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:45:43,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 10:45:43,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:45:43,963 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2020-12-09 10:45:43,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:45:43,980 INFO L93 Difference]: Finished difference Result 91 states and 149 transitions. [2020-12-09 10:45:43,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 10:45:43,981 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-09 10:45:43,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:45:43,988 INFO L225 Difference]: With dead ends: 91 [2020-12-09 10:45:43,988 INFO L226 Difference]: Without dead ends: 44 [2020-12-09 10:45:43,991 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 [2020-12-09 10:45:44,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-09 10:45:44,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-12-09 10:45:44,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-09 10:45:44,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2020-12-09 10:45:44,018 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 8 [2020-12-09 10:45:44,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:45:44,018 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2020-12-09 10:45:44,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 10:45:44,019 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2020-12-09 10:45:44,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 10:45:44,019 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:45:44,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:45:44,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 10:45:44,020 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:45:44,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:45:44,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1651405550, now seen corresponding path program 1 times [2020-12-09 10:45:44,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:45:44,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509299078] [2020-12-09 10:45:44,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:45:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:45:44,061 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:45:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:45:44,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:45:44,100 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 10:45:44,100 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 10:45:44,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 10:45:44,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:45:44 BoogieIcfgContainer [2020-12-09 10:45:44,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:45:44,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:45:44,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:45:44,123 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:45:44,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:45:43" (3/4) ... [2020-12-09 10:45:44,126 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 10:45:44,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:45:44,127 INFO L168 Benchmark]: Toolchain (without parser) took 1213.20 ms. Allocated memory is still 104.9 MB. Free memory was 68.2 MB in the beginning and 42.4 MB in the end (delta: 25.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2020-12-09 10:45:44,127 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 104.9 MB. Free memory is still 84.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:45:44,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.14 ms. Allocated memory is still 104.9 MB. Free memory was 68.0 MB in the beginning and 77.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 10:45:44,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.89 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 75.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:45:44,129 INFO L168 Benchmark]: Boogie Preprocessor took 36.97 ms. Allocated memory is still 104.9 MB. Free memory was 75.4 MB in the beginning and 73.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:45:44,129 INFO L168 Benchmark]: RCFGBuilder took 492.29 ms. Allocated memory is still 104.9 MB. Free memory was 73.3 MB in the beginning and 66.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:45:44,130 INFO L168 Benchmark]: TraceAbstraction took 371.60 ms. Allocated memory is still 104.9 MB. Free memory was 66.7 MB in the beginning and 43.0 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:45:44,130 INFO L168 Benchmark]: Witness Printer took 2.79 ms. Allocated memory is still 104.9 MB. Free memory was 43.0 MB in the beginning and 42.4 MB in the end (delta: 599.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:45:44,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 104.9 MB. Free memory is still 84.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 259.14 ms. Allocated memory is still 104.9 MB. Free memory was 68.0 MB in the beginning and 77.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.89 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 75.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.97 ms. Allocated memory is still 104.9 MB. Free memory was 75.4 MB in the beginning and 73.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 492.29 ms. Allocated memory is still 104.9 MB. Free memory was 73.3 MB in the beginning and 66.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 371.60 ms. Allocated memory is still 104.9 MB. Free memory was 66.7 MB in the beginning and 43.0 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 2.79 ms. Allocated memory is still 104.9 MB. Free memory was 43.0 MB in the beginning and 42.4 MB in the end (delta: 599.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 200]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L195] float x = 0.0f; [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L196] float res = __ieee754_asinf(x); [L199] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L199] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L200] reach_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 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=46occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 0.2.0-7b2dab5 [2020-12-09 10:45:45,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:45:45,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:45:45,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:45:45,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:45:45,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:45:45,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:45:45,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:45:45,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:45:45,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:45:45,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:45:45,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:45:45,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:45:45,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:45:45,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:45:45,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:45:45,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:45:45,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:45:45,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:45:45,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:45:45,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:45:45,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:45:45,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:45:45,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:45:45,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:45:45,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:45:45,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:45:45,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:45:45,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:45:45,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:45:45,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:45:45,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:45:45,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:45:45,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:45:45,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:45:45,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:45:45,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:45:45,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:45:45,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:45:45,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:45:45,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:45:45,901 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 10:45:45,928 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:45:45,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:45:45,929 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:45:45,929 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:45:45,929 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:45:45,930 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:45:45,930 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:45:45,930 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:45:45,930 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:45:45,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:45:45,931 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:45:45,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:45:45,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:45:45,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:45:45,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:45:45,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:45:45,932 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:45:45,933 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 10:45:45,933 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 10:45:45,933 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:45:45,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:45:45,933 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:45:45,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:45:45,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:45:45,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 10:45:45,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:45:45,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:45:45,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:45:45,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:45:45,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:45:45,935 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 10:45:45,935 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 10:45:45,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:45:45,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:45:45,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:45:45,936 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_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf16487f411039d120d72f1ea3eb73e7cb935c40 [2020-12-09 10:45:46,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:45:46,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:45:46,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:45:46,201 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:45:46,202 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:45:46,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2020-12-09 10:45:46,244 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/data/bc7dcea40/7b889181200347fd89a0dc5d5572ba45/FLAG4ff62d2b3 [2020-12-09 10:45:46,639 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:45:46,639 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2020-12-09 10:45:46,647 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/data/bc7dcea40/7b889181200347fd89a0dc5d5572ba45/FLAG4ff62d2b3 [2020-12-09 10:45:46,657 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/data/bc7dcea40/7b889181200347fd89a0dc5d5572ba45 [2020-12-09 10:45:46,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:45:46,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:45:46,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:45:46,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:45:46,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:45:46,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:45:46" (1/1) ... [2020-12-09 10:45:46,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d96262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:46, skipping insertion in model container [2020-12-09 10:45:46,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:45:46" (1/1) ... [2020-12-09 10:45:46,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:45:46,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:45:46,848 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2020-12-09 10:45:46,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:45:46,869 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:45:46,916 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2020-12-09 10:45:46,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:45:46,932 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:45:46,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:46 WrapperNode [2020-12-09 10:45:46,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:45:46,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:45:46,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:45:46,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:45:46,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:46" (1/1) ... [2020-12-09 10:45:46,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:46" (1/1) ... [2020-12-09 10:45:46,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:45:46,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:45:46,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:45:46,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:45:46,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:46" (1/1) ... [2020-12-09 10:45:46,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:46" (1/1) ... [2020-12-09 10:45:46,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:46" (1/1) ... [2020-12-09 10:45:46,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:46" (1/1) ... [2020-12-09 10:45:47,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:46" (1/1) ... [2020-12-09 10:45:47,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:46" (1/1) ... [2020-12-09 10:45:47,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:46" (1/1) ... [2020-12-09 10:45:47,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:45:47,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:45:47,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:45:47,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:45:47,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/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 [2020-12-09 10:45:47,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 10:45:47,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:45:47,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 10:45:47,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 10:45:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:45:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:45:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 10:45:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 10:45:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 10:46:00,834 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:46:00,834 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2020-12-09 10:46:00,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:46:00 BoogieIcfgContainer [2020-12-09 10:46:00,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:46:00,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:46:00,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:46:00,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:46:00,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:45:46" (1/3) ... [2020-12-09 10:46:00,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77aeee7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:46:00, skipping insertion in model container [2020-12-09 10:46:00,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:45:46" (2/3) ... [2020-12-09 10:46:00,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77aeee7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:46:00, skipping insertion in model container [2020-12-09 10:46:00,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:46:00" (3/3) ... [2020-12-09 10:46:00,842 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270b.c [2020-12-09 10:46:00,852 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:46:00,854 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 10:46:00,861 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 10:46:00,877 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:46:00,877 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 10:46:00,877 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:46:00,877 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:46:00,877 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:46:00,877 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:46:00,877 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:46:00,877 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:46:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2020-12-09 10:46:00,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 10:46:00,889 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:46:00,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:46:00,890 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:46:00,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:46:00,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2020-12-09 10:46:00,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:46:00,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006896771] [2020-12-09 10:46:00,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/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 [2020-12-09 10:46:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:46:01,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 10:46:01,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:46:01,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:46:01,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:46:01,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006896771] [2020-12-09 10:46:01,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:46:01,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:46:01,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649360675] [2020-12-09 10:46:01,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 10:46:01,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:46:01,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 10:46:01,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:46:01,455 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2020-12-09 10:46:01,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:46:01,470 INFO L93 Difference]: Finished difference Result 118 states and 192 transitions. [2020-12-09 10:46:01,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 10:46:01,471 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-09 10:46:01,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:46:01,478 INFO L225 Difference]: With dead ends: 118 [2020-12-09 10:46:01,478 INFO L226 Difference]: Without dead ends: 57 [2020-12-09 10:46:01,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:46:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-09 10:46:01,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-12-09 10:46:01,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-09 10:46:01,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2020-12-09 10:46:01,504 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2020-12-09 10:46:01,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:46:01,505 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2020-12-09 10:46:01,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 10:46:01,505 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2020-12-09 10:46:01,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 10:46:01,505 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:46:01,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:46:01,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 10:46:01,707 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:46:01,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:46:01,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2020-12-09 10:46:01,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:46:01,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363072968] [2020-12-09 10:46:01,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/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 [2020-12-09 10:46:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:46:02,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 10:46:02,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:46:02,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:46:02,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:46:02,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363072968] [2020-12-09 10:46:02,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:46:02,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 10:46:02,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863053328] [2020-12-09 10:46:02,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 10:46:02,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:46:02,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 10:46:02,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:46:02,430 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand 5 states. [2020-12-09 10:46:03,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:46:03,685 INFO L93 Difference]: Finished difference Result 104 states and 135 transitions. [2020-12-09 10:46:03,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 10:46:03,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-09 10:46:03,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:46:03,687 INFO L225 Difference]: With dead ends: 104 [2020-12-09 10:46:03,687 INFO L226 Difference]: Without dead ends: 57 [2020-12-09 10:46:03,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 10:46:03,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-09 10:46:03,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-12-09 10:46:03,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-09 10:46:03,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2020-12-09 10:46:03,696 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 10 [2020-12-09 10:46:03,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:46:03,697 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2020-12-09 10:46:03,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 10:46:03,697 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2020-12-09 10:46:03,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 10:46:03,697 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:46:03,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:46:03,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 10:46:03,899 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:46:03,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:46:03,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1089938183, now seen corresponding path program 1 times [2020-12-09 10:46:03,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:46:03,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641134419] [2020-12-09 10:46:03,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/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 [2020-12-09 10:46:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:46:04,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 10:46:04,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:46:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:46:04,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:46:04,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641134419] [2020-12-09 10:46:04,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:46:04,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 10:46:04,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474201846] [2020-12-09 10:46:04,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 10:46:04,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:46:04,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 10:46:04,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:46:04,511 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand 5 states. [2020-12-09 10:46:04,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:46:04,981 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2020-12-09 10:46:04,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 10:46:04,982 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-09 10:46:04,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:46:04,983 INFO L225 Difference]: With dead ends: 69 [2020-12-09 10:46:04,983 INFO L226 Difference]: Without dead ends: 66 [2020-12-09 10:46:04,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-09 10:46:04,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-09 10:46:04,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2020-12-09 10:46:04,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-12-09 10:46:04,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2020-12-09 10:46:04,994 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 14 [2020-12-09 10:46:04,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:46:04,994 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2020-12-09 10:46:04,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 10:46:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2020-12-09 10:46:04,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 10:46:04,995 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:46:04,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:46:05,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 10:46:05,197 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:46:05,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:46:05,198 INFO L82 PathProgramCache]: Analyzing trace with hash 980104924, now seen corresponding path program 1 times [2020-12-09 10:46:05,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:46:05,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068169544] [2020-12-09 10:46:05,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/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 [2020-12-09 10:46:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:46:05,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-09 10:46:05,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:46:05,964 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:46:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:46:06,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:46:06,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068169544] [2020-12-09 10:46:06,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:46:06,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 10:46:06,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318079864] [2020-12-09 10:46:06,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 10:46:06,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:46:06,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 10:46:06,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-12-09 10:46:06,178 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand 9 states. [2020-12-09 10:46:07,189 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 10:46:07,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:46:07,406 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2020-12-09 10:46:07,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 10:46:07,407 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-12-09 10:46:07,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:46:07,407 INFO L225 Difference]: With dead ends: 66 [2020-12-09 10:46:07,408 INFO L226 Difference]: Without dead ends: 57 [2020-12-09 10:46:07,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-12-09 10:46:07,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-09 10:46:07,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-12-09 10:46:07,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-09 10:46:07,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2020-12-09 10:46:07,414 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 18 [2020-12-09 10:46:07,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:46:07,415 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2020-12-09 10:46:07,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 10:46:07,415 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2020-12-09 10:46:07,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-09 10:46:07,416 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:46:07,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:46:07,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 10:46:07,617 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:46:07,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:46:07,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1296197232, now seen corresponding path program 1 times [2020-12-09 10:46:07,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:46:07,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984913116] [2020-12-09 10:46:07,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/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 [2020-12-09 10:46:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:46:09,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 10:46:09,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:46:09,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:46:09,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:46:09,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984913116] [2020-12-09 10:46:09,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:46:09,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:46:09,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719511047] [2020-12-09 10:46:09,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 10:46:09,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:46:09,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 10:46:09,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 10:46:09,660 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand 4 states. [2020-12-09 10:46:09,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:46:09,692 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2020-12-09 10:46:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 10:46:09,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-12-09 10:46:09,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:46:09,693 INFO L225 Difference]: With dead ends: 57 [2020-12-09 10:46:09,693 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 10:46:09,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 10:46:09,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 10:46:09,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 10:46:09,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 10:46:09,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 10:46:09,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-12-09 10:46:09,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:46:09,695 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 10:46:09,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 10:46:09,695 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 10:46:09,695 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 10:46:09,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 10:46:09,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 10:46:10,260 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-09 10:46:10,432 INFO L258 CegarLoopResult]: At program point L184(lines 119 185) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asinf_#res| (_ +zero 8 24)) (= ULTIMATE.start___ieee754_asinf_~x (_ +zero 8 24)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)))))) [2020-12-09 10:46:10,433 INFO L262 CegarLoopResult]: For program point L135(lines 135 136) no Hoare annotation was computed. [2020-12-09 10:46:10,433 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 10:46:10,433 INFO L262 CegarLoopResult]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2020-12-09 10:46:10,433 INFO L258 CegarLoopResult]: At program point L87-2(lines 87 91) the Hoare annotation is: false [2020-12-09 10:46:10,433 INFO L262 CegarLoopResult]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2020-12-09 10:46:10,433 INFO L262 CegarLoopResult]: For program point L170(lines 170 174) no Hoare annotation was computed. [2020-12-09 10:46:10,433 INFO L262 CegarLoopResult]: For program point L170-1(lines 162 180) no Hoare annotation was computed. [2020-12-09 10:46:10,433 INFO L262 CegarLoopResult]: For program point L170-2(lines 170 174) no Hoare annotation was computed. [2020-12-09 10:46:10,434 INFO L265 CegarLoopResult]: At program point L204(lines 187 205) the Hoare annotation is: true [2020-12-09 10:46:10,434 INFO L262 CegarLoopResult]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2020-12-09 10:46:10,434 INFO L258 CegarLoopResult]: At program point L122-2(lines 122 126) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_asinf_~x (_ +zero 8 24)) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_asin~0) (= ~huge_asin~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-12-09 10:46:10,434 INFO L262 CegarLoopResult]: For program point L56(lines 56 57) no Hoare annotation was computed. [2020-12-09 10:46:10,434 INFO L262 CegarLoopResult]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2020-12-09 10:46:10,435 INFO L258 CegarLoopResult]: At program point L23(lines 14 24) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asinf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short20| (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= ULTIMATE.start___ieee754_asinf_~x (_ +zero 8 24)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)))))) [2020-12-09 10:46:10,435 INFO L262 CegarLoopResult]: For program point L56-2(lines 56 57) no Hoare annotation was computed. [2020-12-09 10:46:10,435 INFO L258 CegarLoopResult]: At program point L106(lines 94 107) the Hoare annotation is: false [2020-12-09 10:46:10,435 INFO L262 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-12-09 10:46:10,435 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 10:46:10,435 INFO L262 CegarLoopResult]: For program point L75(lines 75 84) no Hoare annotation was computed. [2020-12-09 10:46:10,436 INFO L258 CegarLoopResult]: At program point L92(lines 28 93) the Hoare annotation is: false [2020-12-09 10:46:10,436 INFO L262 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2020-12-09 10:46:10,436 INFO L262 CegarLoopResult]: For program point L159(lines 159 180) no Hoare annotation was computed. [2020-12-09 10:46:10,436 INFO L262 CegarLoopResult]: For program point L159-2(lines 119 185) no Hoare annotation was computed. [2020-12-09 10:46:10,436 INFO L262 CegarLoopResult]: For program point L77(lines 77 83) no Hoare annotation was computed. [2020-12-09 10:46:10,436 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 10:46:10,436 INFO L262 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2020-12-09 10:46:10,436 INFO L262 CegarLoopResult]: For program point L128(lines 128 148) no Hoare annotation was computed. [2020-12-09 10:46:10,436 INFO L262 CegarLoopResult]: For program point L79(lines 79 82) no Hoare annotation was computed. [2020-12-09 10:46:10,436 INFO L262 CegarLoopResult]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2020-12-09 10:46:10,437 INFO L258 CegarLoopResult]: At program point L96-2(lines 96 100) the Hoare annotation is: false [2020-12-09 10:46:10,437 INFO L258 CegarLoopResult]: At program point L64-2(lines 64 73) the Hoare annotation is: false [2020-12-09 10:46:10,437 INFO L262 CegarLoopResult]: For program point L64-3(lines 28 93) no Hoare annotation was computed. [2020-12-09 10:46:10,437 INFO L262 CegarLoopResult]: For program point L131(lines 131 148) no Hoare annotation was computed. [2020-12-09 10:46:10,437 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 10:46:10,437 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 200) no Hoare annotation was computed. [2020-12-09 10:46:10,437 INFO L262 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2020-12-09 10:46:10,437 INFO L262 CegarLoopResult]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2020-12-09 10:46:10,437 INFO L262 CegarLoopResult]: For program point L165-1(lines 165 169) no Hoare annotation was computed. [2020-12-09 10:46:10,438 INFO L258 CegarLoopResult]: At program point L165-2(lines 165 169) the Hoare annotation is: false [2020-12-09 10:46:10,438 INFO L262 CegarLoopResult]: For program point L66(lines 66 70) no Hoare annotation was computed. [2020-12-09 10:46:10,438 INFO L262 CegarLoopResult]: For program point L33-1(lines 33 37) no Hoare annotation was computed. [2020-12-09 10:46:10,438 INFO L262 CegarLoopResult]: For program point L66-2(lines 66 70) no Hoare annotation was computed. [2020-12-09 10:46:10,438 INFO L258 CegarLoopResult]: At program point L33-2(lines 33 37) the Hoare annotation is: false [2020-12-09 10:46:10,438 INFO L262 CegarLoopResult]: For program point L33-3(lines 33 37) no Hoare annotation was computed. [2020-12-09 10:46:10,438 INFO L262 CegarLoopResult]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2020-12-09 10:46:10,438 INFO L262 CegarLoopResult]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2020-12-09 10:46:10,438 INFO L258 CegarLoopResult]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2020-12-09 10:46:10,439 INFO L258 CegarLoopResult]: At program point L17-2(lines 17 21) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asinf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short20| (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= ULTIMATE.start___ieee754_asinf_~x (_ +zero 8 24)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)))))) [2020-12-09 10:46:10,439 INFO L262 CegarLoopResult]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2020-12-09 10:46:10,439 INFO L262 CegarLoopResult]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2020-12-09 10:46:10,439 INFO L262 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-12-09 10:46:10,439 INFO L262 CegarLoopResult]: For program point L133(lines 133 148) no Hoare annotation was computed. [2020-12-09 10:46:10,439 INFO L262 CegarLoopResult]: For program point L199-2(lines 199 202) no Hoare annotation was computed. [2020-12-09 10:46:10,439 INFO L262 CegarLoopResult]: For program point L133-1(lines 133 148) no Hoare annotation was computed. [2020-12-09 10:46:10,439 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-09 10:46:10,439 INFO L262 CegarLoopResult]: For program point L134(lines 134 147) no Hoare annotation was computed. [2020-12-09 10:46:10,439 INFO L262 CegarLoopResult]: For program point L101(lines 101 105) no Hoare annotation was computed. [2020-12-09 10:46:10,440 INFO L262 CegarLoopResult]: For program point L101-1(lines 94 107) no Hoare annotation was computed. [2020-12-09 10:46:10,440 INFO L262 CegarLoopResult]: For program point L101-2(lines 101 105) no Hoare annotation was computed. [2020-12-09 10:46:10,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,456 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,457 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,457 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,458 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,459 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,459 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,459 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,461 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:46:10,465 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:46:10,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:46:10 BoogieIcfgContainer [2020-12-09 10:46:10,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:46:10,468 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:46:10,468 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:46:10,468 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:46:10,469 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:46:00" (3/4) ... [2020-12-09 10:46:10,472 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 10:46:10,484 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-12-09 10:46:10,484 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 10:46:10,485 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 10:46:10,485 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 10:46:10,505 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~Pluszero~LONGDOUBLE() && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0])) [2020-12-09 10:46:10,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == res) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0])) [2020-12-09 10:46:10,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == res) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0])) [2020-12-09 10:46:10,534 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_54c27ac7-c33f-40f4-8f1a-2f7d8144b72f/bin/utaipan/witness.graphml [2020-12-09 10:46:10,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:46:10,535 INFO L168 Benchmark]: Toolchain (without parser) took 23874.13 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 36.0 MB in the beginning and 25.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:46:10,536 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.3 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:46:10,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.09 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 35.7 MB in the beginning and 52.3 MB in the end (delta: -16.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 10:46:10,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.68 ms. Allocated memory is still 71.3 MB. Free memory was 52.3 MB in the beginning and 49.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:46:10,537 INFO L168 Benchmark]: Boogie Preprocessor took 37.72 ms. Allocated memory is still 71.3 MB. Free memory was 49.9 MB in the beginning and 47.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:46:10,537 INFO L168 Benchmark]: RCFGBuilder took 13820.06 ms. Allocated memory is still 71.3 MB. Free memory was 47.5 MB in the beginning and 49.7 MB in the end (delta: -2.2 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:46:10,538 INFO L168 Benchmark]: TraceAbstraction took 9630.45 ms. Allocated memory is still 71.3 MB. Free memory was 49.3 MB in the beginning and 30.8 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2020-12-09 10:46:10,538 INFO L168 Benchmark]: Witness Printer took 66.29 ms. Allocated memory is still 71.3 MB. Free memory was 30.8 MB in the beginning and 25.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 10:46:10,540 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.3 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.09 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 35.7 MB in the beginning and 52.3 MB in the end (delta: -16.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.68 ms. Allocated memory is still 71.3 MB. Free memory was 52.3 MB in the beginning and 49.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.72 ms. Allocated memory is still 71.3 MB. Free memory was 49.9 MB in the beginning and 47.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 13820.06 ms. Allocated memory is still 71.3 MB. Free memory was 47.5 MB in the beginning and 49.7 MB in the end (delta: -2.2 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9630.45 ms. Allocated memory is still 71.3 MB. Free memory was 49.3 MB in the beginning and 30.8 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * Witness Printer took 66.29 ms. Allocated memory is still 71.3 MB. Free memory was 30.8 MB in the beginning and 25.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 200]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2020-12-09 10:46:10,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,551 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,551 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,551 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,551 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((\result == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == res) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0])) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2020-12-09 10:46:10,552 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,552 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,552 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,552 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,553 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,553 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,553 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,553 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((((\result == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == res) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0])) - InvariantResult [Line: 119]: Loop Invariant [2020-12-09 10:46:10,553 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,554 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,554 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,554 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,554 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,554 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,554 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 10:46:10,554 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\result == ~Pluszero~LONGDOUBLE() && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0])) - InvariantResult [Line: 122]: Loop Invariant [2020-12-09 10:46:10,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 10:46:10,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_asin) && huge_asin == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 267 SDtfs, 372 SDslu, 487 SDs, 0 SdLazy, 92 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 18 NumberOfFragments, 152 HoareAnnotationTreeSize, 13 FomulaSimplifications, 78 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 1 QuantifiedInterpolants, 8502 SizeOfPredicates, 28 NumberOfNonLiveVariables, 377 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...