./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/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 7bef213e800d9f1856c750fa5b59ba443e11e7ea ............................................................................................................................................................................................................................................................................................................................. 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_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/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 7bef213e800d9f1856c750fa5b59ba443e11e7ea ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:55:22,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:55:22,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:55:22,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:55:22,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:55:22,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:55:22,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:55:22,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:55:22,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:55:22,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:55:22,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:55:22,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:55:22,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:55:22,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:55:22,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:55:22,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:55:22,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:55:22,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:55:22,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:55:22,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:55:22,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:55:22,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:55:22,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:55:22,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:55:22,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:55:22,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:55:22,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:55:22,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:55:22,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:55:22,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:55:22,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:55:22,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:55:22,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:55:22,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:55:22,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:55:22,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:55:22,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:55:22,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:55:22,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:55:22,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:55:22,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:55:22,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:55:22,334 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:55:22,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:55:22,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:55:22,336 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:55:22,337 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:55:22,337 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:55:22,337 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:55:22,337 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:55:22,337 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:55:22,338 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:55:22,339 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:55:22,339 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:55:22,339 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:55:22,340 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:55:22,340 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:55:22,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:55:22,341 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:55:22,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:55:22,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:55:22,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:55:22,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:55:22,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:55:22,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:55:22,342 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:55:22,342 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:55:22,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:55:22,343 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:55:22,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:55:22,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:55:22,344 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:55:22,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:55:22,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:55:22,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:55:22,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:55:22,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:55:22,345 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:55:22,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:55:22,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:55:22,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:55:22,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:55:22,346 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_10935f51-9f54-4812-b88b-c5a3b0544b94/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bef213e800d9f1856c750fa5b59ba443e11e7ea [2020-11-30 01:55:22,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:55:22,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:55:22,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:55:22,741 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:55:22,750 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:55:22,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2020-11-30 01:55:22,863 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/data/b59d3a6eb/437befaca53f412d8b58a0f8ee0b3ad0/FLAG04107e041 [2020-11-30 01:55:23,464 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:55:23,465 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2020-11-30 01:55:23,476 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/data/b59d3a6eb/437befaca53f412d8b58a0f8ee0b3ad0/FLAG04107e041 [2020-11-30 01:55:23,832 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/data/b59d3a6eb/437befaca53f412d8b58a0f8ee0b3ad0 [2020-11-30 01:55:23,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:55:23,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:55:23,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:55:23,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:55:23,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:55:23,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:55:23" (1/1) ... [2020-11-30 01:55:23,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45cbcfc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:23, skipping insertion in model container [2020-11-30 01:55:23,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:55:23" (1/1) ... [2020-11-30 01:55:23,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:55:23,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:55:24,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:55:24,135 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:55:24,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:55:24,240 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:55:24,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:24 WrapperNode [2020-11-30 01:55:24,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:55:24,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:55:24,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:55:24,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:55:24,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:24" (1/1) ... [2020-11-30 01:55:24,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:24" (1/1) ... [2020-11-30 01:55:24,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:55:24,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:55:24,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:55:24,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:55:24,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:24" (1/1) ... [2020-11-30 01:55:24,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:24" (1/1) ... [2020-11-30 01:55:24,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:24" (1/1) ... [2020-11-30 01:55:24,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:24" (1/1) ... [2020-11-30 01:55:24,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:24" (1/1) ... [2020-11-30 01:55:24,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:24" (1/1) ... [2020-11-30 01:55:24,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:24" (1/1) ... [2020-11-30 01:55:24,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:55:24,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:55:24,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:55:24,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:55:24,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/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 [2020-11-30 01:55:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:55:24,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:55:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:55:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 01:55:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 01:55:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:55:24,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:55:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:55:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-30 01:55:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:55:25,217 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:55:25,218 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-30 01:55:25,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:55:25 BoogieIcfgContainer [2020-11-30 01:55:25,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:55:25,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:55:25,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:55:25,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:55:25,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:55:23" (1/3) ... [2020-11-30 01:55:25,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11138a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:55:25, skipping insertion in model container [2020-11-30 01:55:25,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:24" (2/3) ... [2020-11-30 01:55:25,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11138a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:55:25, skipping insertion in model container [2020-11-30 01:55:25,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:55:25" (3/3) ... [2020-11-30 01:55:25,229 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a.c [2020-11-30 01:55:25,239 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:55:25,244 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:55:25,256 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:55:25,289 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:55:25,289 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:55:25,290 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:55:25,290 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:55:25,290 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:55:25,290 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:55:25,290 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:55:25,291 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:55:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-30 01:55:25,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:55:25,324 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:55:25,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:55:25,326 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:55:25,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:55:25,333 INFO L82 PathProgramCache]: Analyzing trace with hash 938463641, now seen corresponding path program 1 times [2020-11-30 01:55:25,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:55:25,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136691189] [2020-11-30 01:55:25,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:55:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:55:25,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:55:25,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136691189] [2020-11-30 01:55:25,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:55:25,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:55:25,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874061320] [2020-11-30 01:55:25,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:55:25,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:55:25,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:55:25,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:55:25,572 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-11-30 01:55:25,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:55:25,595 INFO L93 Difference]: Finished difference Result 59 states and 97 transitions. [2020-11-30 01:55:25,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:55:25,597 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-30 01:55:25,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:55:25,611 INFO L225 Difference]: With dead ends: 59 [2020-11-30 01:55:25,611 INFO L226 Difference]: Without dead ends: 28 [2020-11-30 01:55:25,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:55:25,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-30 01:55:25,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-30 01:55:25,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-30 01:55:25,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-11-30 01:55:25,660 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 7 [2020-11-30 01:55:25,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:55:25,660 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-11-30 01:55:25,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:55:25,661 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-11-30 01:55:25,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:55:25,661 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:55:25,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:55:25,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:55:25,662 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:55:25,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:55:25,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1255874094, now seen corresponding path program 1 times [2020-11-30 01:55:25,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:55:25,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115785295] [2020-11-30 01:55:25,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:55:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:55:25,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:55:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:55:25,829 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:55:25,868 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 01:55:25,868 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:55:25,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:55:25,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:55:25 BoogieIcfgContainer [2020-11-30 01:55:25,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:55:25,922 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:55:25,923 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:55:25,923 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:55:25,924 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:55:25" (3/4) ... [2020-11-30 01:55:25,927 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:55:25,928 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:55:25,931 INFO L168 Benchmark]: Toolchain (without parser) took 2092.63 ms. Allocated memory is still 92.3 MB. Free memory was 59.5 MB in the beginning and 50.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:55:25,932 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 92.3 MB. Free memory was 70.2 MB in the beginning and 70.2 MB in the end (delta: 30.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:55:25,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.76 ms. Allocated memory is still 92.3 MB. Free memory was 59.3 MB in the beginning and 67.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:55:25,934 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.75 ms. Allocated memory is still 92.3 MB. Free memory was 67.9 MB in the beginning and 65.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:55:25,935 INFO L168 Benchmark]: Boogie Preprocessor took 63.10 ms. Allocated memory is still 92.3 MB. Free memory was 65.8 MB in the beginning and 64.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:55:25,936 INFO L168 Benchmark]: RCFGBuilder took 844.61 ms. Allocated memory is still 92.3 MB. Free memory was 64.1 MB in the beginning and 33.6 MB in the end (delta: 30.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:55:25,937 INFO L168 Benchmark]: TraceAbstraction took 700.29 ms. Allocated memory is still 92.3 MB. Free memory was 33.1 MB in the beginning and 50.1 MB in the end (delta: -16.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:55:25,937 INFO L168 Benchmark]: Witness Printer took 5.56 ms. Allocated memory is still 92.3 MB. Free memory is still 50.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:55:25,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 92.3 MB. Free memory was 70.2 MB in the beginning and 70.2 MB in the end (delta: 30.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 402.76 ms. Allocated memory is still 92.3 MB. Free memory was 59.3 MB in the beginning and 67.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.75 ms. Allocated memory is still 92.3 MB. Free memory was 67.9 MB in the beginning and 65.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.10 ms. Allocated memory is still 92.3 MB. Free memory was 65.8 MB in the beginning and 64.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 844.61 ms. Allocated memory is still 92.3 MB. Free memory was 64.1 MB in the beginning and 33.6 MB in the end (delta: 30.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 700.29 ms. Allocated memory is still 92.3 MB. Free memory was 33.1 MB in the beginning and 50.1 MB in the end (delta: -16.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.56 ms. Allocated memory is still 92.3 MB. Free memory is still 50.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 123, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 48, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L119] float x = 0.0f; [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L120] float res = __ieee754_expf(x); [L123] COND TRUE res != 1.0f VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L3] __assert_fail("0", "float_req_bl_0832a.c", 3, "reach_error") VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 38 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=30occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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-a4ecdab [2020-11-30 01:55:28,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:55:28,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:55:28,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:55:28,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:55:28,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:55:28,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:55:28,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:55:28,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:55:28,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:55:28,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:55:28,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:55:28,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:55:28,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:55:28,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:55:28,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:55:28,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:55:28,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:55:28,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:55:28,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:55:28,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:55:28,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:55:28,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:55:28,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:55:28,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:55:28,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:55:28,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:55:28,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:55:28,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:55:28,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:55:28,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:55:28,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:55:28,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:55:28,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:55:28,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:55:28,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:55:28,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:55:28,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:55:28,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:55:28,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:55:28,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:55:28,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 01:55:28,659 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:55:28,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:55:28,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:55:28,662 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:55:28,662 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:55:28,662 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:55:28,662 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:55:28,662 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:55:28,663 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:55:28,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:55:28,665 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:55:28,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:55:28,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:55:28,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:55:28,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:55:28,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:55:28,666 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:55:28,667 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:55:28,667 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:55:28,667 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:55:28,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:55:28,667 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:55:28,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:55:28,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:55:28,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:55:28,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:55:28,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:55:28,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:55:28,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:55:28,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:55:28,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:55:28,669 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 01:55:28,670 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:55:28,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:55:28,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:55:28,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:55:28,671 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_10935f51-9f54-4812-b88b-c5a3b0544b94/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bef213e800d9f1856c750fa5b59ba443e11e7ea [2020-11-30 01:55:29,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:55:29,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:55:29,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:55:29,163 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:55:29,164 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:55:29,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2020-11-30 01:55:29,247 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/data/188617dc2/4c0f63b5530947f9817147d80428f848/FLAGa81e29c29 [2020-11-30 01:55:29,881 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:55:29,882 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2020-11-30 01:55:29,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/data/188617dc2/4c0f63b5530947f9817147d80428f848/FLAGa81e29c29 [2020-11-30 01:55:30,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/data/188617dc2/4c0f63b5530947f9817147d80428f848 [2020-11-30 01:55:30,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:55:30,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:55:30,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:55:30,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:55:30,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:55:30,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:55:30" (1/1) ... [2020-11-30 01:55:30,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562b4d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:30, skipping insertion in model container [2020-11-30 01:55:30,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:55:30" (1/1) ... [2020-11-30 01:55:30,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:55:30,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:55:30,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:55:30,508 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:55:30,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:55:30,636 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:55:30,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:30 WrapperNode [2020-11-30 01:55:30,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:55:30,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:55:30,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:55:30,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:55:30,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:30" (1/1) ... [2020-11-30 01:55:30,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:30" (1/1) ... [2020-11-30 01:55:30,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:55:30,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:55:30,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:55:30,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:55:30,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:30" (1/1) ... [2020-11-30 01:55:30,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:30" (1/1) ... [2020-11-30 01:55:30,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:30" (1/1) ... [2020-11-30 01:55:30,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:30" (1/1) ... [2020-11-30 01:55:30,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:30" (1/1) ... [2020-11-30 01:55:30,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:30" (1/1) ... [2020-11-30 01:55:30,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:30" (1/1) ... [2020-11-30 01:55:30,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:55:30,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:55:30,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:55:30,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:55:30,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/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 [2020-11-30 01:55:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-30 01:55:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:55:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:55:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 01:55:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:55:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:55:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:55:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 01:55:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:55:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:55:39,812 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:55:39,813 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-30 01:55:39,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:55:39 BoogieIcfgContainer [2020-11-30 01:55:39,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:55:39,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:55:39,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:55:39,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:55:39,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:55:30" (1/3) ... [2020-11-30 01:55:39,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3580cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:55:39, skipping insertion in model container [2020-11-30 01:55:39,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:30" (2/3) ... [2020-11-30 01:55:39,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3580cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:55:39, skipping insertion in model container [2020-11-30 01:55:39,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:55:39" (3/3) ... [2020-11-30 01:55:39,838 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a.c [2020-11-30 01:55:39,848 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:55:39,853 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:55:39,865 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:55:39,898 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:55:39,899 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:55:39,899 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:55:39,899 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:55:39,899 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:55:39,900 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:55:39,900 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:55:39,900 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:55:39,922 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-11-30 01:55:39,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:55:39,931 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:55:39,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:55:39,933 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:55:39,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:55:39,939 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2020-11-30 01:55:39,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:55:39,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134376655] [2020-11-30 01:55:39,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/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 [2020-11-30 01:55:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:55:40,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:55:40,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:55:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:55:40,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:55:40,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:55:40,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134376655] [2020-11-30 01:55:40,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:55:40,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:55:40,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096554447] [2020-11-30 01:55:40,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:55:40,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:55:40,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:55:40,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:55:40,727 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-11-30 01:55:40,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:55:40,748 INFO L93 Difference]: Finished difference Result 71 states and 113 transitions. [2020-11-30 01:55:40,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:55:40,750 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 01:55:40,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:55:40,759 INFO L225 Difference]: With dead ends: 71 [2020-11-30 01:55:40,760 INFO L226 Difference]: Without dead ends: 33 [2020-11-30 01:55:40,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:55:40,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-30 01:55:40,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-30 01:55:40,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-30 01:55:40,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2020-11-30 01:55:40,794 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2020-11-30 01:55:40,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:55:40,794 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2020-11-30 01:55:40,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:55:40,795 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2020-11-30 01:55:40,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:55:40,795 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:55:40,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:55:41,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:55:41,017 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:55:41,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:55:41,019 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2020-11-30 01:55:41,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:55:41,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977152606] [2020-11-30 01:55:41,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/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 [2020-11-30 01:55:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:55:41,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:55:41,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:55:41,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:55:41,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:55:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:55:41,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977152606] [2020-11-30 01:55:41,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:55:41,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 01:55:41,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042073163] [2020-11-30 01:55:41,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:55:41,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:55:41,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:55:41,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:55:41,798 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 8 states. [2020-11-30 01:55:49,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:55:49,531 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2020-11-30 01:55:49,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:55:49,639 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-11-30 01:55:49,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:55:49,640 INFO L225 Difference]: With dead ends: 54 [2020-11-30 01:55:49,640 INFO L226 Difference]: Without dead ends: 33 [2020-11-30 01:55:49,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:55:49,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-30 01:55:49,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2020-11-30 01:55:49,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 01:55:49,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-11-30 01:55:49,649 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2020-11-30 01:55:49,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:55:49,650 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-11-30 01:55:49,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:55:49,650 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-11-30 01:55:49,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:55:49,651 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:55:49,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:55:49,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:55:49,866 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:55:49,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:55:49,867 INFO L82 PathProgramCache]: Analyzing trace with hash -239562945, now seen corresponding path program 1 times [2020-11-30 01:55:49,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:55:49,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080693401] [2020-11-30 01:55:49,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/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 [2020-11-30 01:55:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:55:50,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:55:50,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:55:50,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:55:50,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:55:51,415 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-30 01:55:51,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:55:51,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080693401] [2020-11-30 01:55:51,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:55:51,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-30 01:55:51,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814903193] [2020-11-30 01:55:51,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:55:51,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:55:51,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:55:51,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:55:51,639 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 10 states. [2020-11-30 01:55:59,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:55:59,767 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-30 01:55:59,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:55:59,768 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-11-30 01:55:59,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:55:59,772 INFO L225 Difference]: With dead ends: 33 [2020-11-30 01:55:59,772 INFO L226 Difference]: Without dead ends: 29 [2020-11-30 01:55:59,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:55:59,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-30 01:55:59,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-30 01:55:59,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 01:55:59,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-11-30 01:55:59,777 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2020-11-30 01:55:59,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:55:59,777 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-11-30 01:55:59,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:55:59,777 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-11-30 01:55:59,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:55:59,778 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:55:59,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:55:59,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:55:59,982 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:55:59,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:55:59,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1708303706, now seen corresponding path program 1 times [2020-11-30 01:55:59,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:55:59,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719419503] [2020-11-30 01:55:59,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/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 [2020-11-30 01:56:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:56:01,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:56:01,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:56:01,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:56:01,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:56:01,623 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-30 01:56:01,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:56:01,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719419503] [2020-11-30 01:56:01,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:56:01,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 01:56:01,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104846011] [2020-11-30 01:56:01,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:56:01,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:56:01,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:56:01,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:56:01,778 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2020-11-30 01:56:01,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:56:01,914 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-11-30 01:56:01,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:56:01,916 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-30 01:56:01,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:56:01,917 INFO L225 Difference]: With dead ends: 29 [2020-11-30 01:56:01,917 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:56:01,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:56:01,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:56:01,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:56:01,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:56:01,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:56:01,918 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-30 01:56:01,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:56:01,918 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:56:01,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:56:01,918 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:56:01,918 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:56:02,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 01:56:02,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:56:02,234 INFO L274 CegarLoopResult]: For program point L60(lines 60 75) no Hoare annotation was computed. [2020-11-30 01:56:02,234 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 01:56:02,234 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 01:56:02,234 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:56:02,234 INFO L274 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2020-11-30 01:56:02,234 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:56:02,234 INFO L274 CegarLoopResult]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2020-11-30 01:56:02,234 INFO L274 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2020-11-30 01:56:02,234 INFO L274 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-11-30 01:56:02,235 INFO L270 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2020-11-30 01:56:02,235 INFO L277 CegarLoopResult]: At program point L128(lines 113 129) the Hoare annotation is: true [2020-11-30 01:56:02,235 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-11-30 01:56:02,235 INFO L274 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-11-30 01:56:02,235 INFO L274 CegarLoopResult]: For program point L104(lines 104 108) no Hoare annotation was computed. [2020-11-30 01:56:02,235 INFO L274 CegarLoopResult]: For program point L104-1(lines 97 110) no Hoare annotation was computed. [2020-11-30 01:56:02,235 INFO L274 CegarLoopResult]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2020-11-30 01:56:02,235 INFO L274 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2020-11-30 01:56:02,235 INFO L274 CegarLoopResult]: For program point L80(lines 80 83) no Hoare annotation was computed. [2020-11-30 01:56:02,236 INFO L274 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2020-11-30 01:56:02,236 INFO L274 CegarLoopResult]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2020-11-30 01:56:02,236 INFO L274 CegarLoopResult]: For program point L73(lines 73 74) no Hoare annotation was computed. [2020-11-30 01:56:02,236 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:56:02,236 INFO L274 CegarLoopResult]: For program point L123(lines 123 126) no Hoare annotation was computed. [2020-11-30 01:56:02,236 INFO L274 CegarLoopResult]: For program point L57(lines 57 58) no Hoare annotation was computed. [2020-11-30 01:56:02,236 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 01:56:02,236 INFO L274 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-11-30 01:56:02,236 INFO L270 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-11-30 01:56:02,236 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:56:02,236 INFO L274 CegarLoopResult]: For program point L91(lines 91 95) no Hoare annotation was computed. [2020-11-30 01:56:02,237 INFO L274 CegarLoopResult]: For program point L91-1(lines 84 97) no Hoare annotation was computed. [2020-11-30 01:56:02,237 INFO L274 CegarLoopResult]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2020-11-30 01:56:02,237 INFO L274 CegarLoopResult]: For program point L84(lines 84 110) no Hoare annotation was computed. [2020-11-30 01:56:02,237 INFO L274 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-11-30 01:56:02,237 INFO L270 CegarLoopResult]: At program point L109(lines 38 111) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)))) (and (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 .cse0) (= ULTIMATE.start___ieee754_expf_~x (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_expf_#res| (fp.add currentRoundingMode .cse0 (_ +zero 8 24))))) [2020-11-30 01:56:02,237 INFO L274 CegarLoopResult]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2020-11-30 01:56:02,237 INFO L270 CegarLoopResult]: At program point L43-2(lines 43 47) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (= ~huge_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= ULTIMATE.start___ieee754_expf_~x (_ +zero 8 24))) [2020-11-30 01:56:02,237 INFO L274 CegarLoopResult]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2020-11-30 01:56:02,253 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:56:02,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,257 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,257 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,260 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:56:02,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,270 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:56:02,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:56:02,273 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,273 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,273 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,273 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,273 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:56:02 BoogieIcfgContainer [2020-11-30 01:56:02,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:56:02,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:56:02,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:56:02,277 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:56:02,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:55:39" (3/4) ... [2020-11-30 01:56:02,281 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:56:02,296 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-30 01:56:02,296 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 01:56:02,297 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:56:02,297 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:56:02,323 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && x == ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) [2020-11-30 01:56:02,389 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_10935f51-9f54-4812-b88b-c5a3b0544b94/bin/utaipan/witness.graphml [2020-11-30 01:56:02,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:56:02,391 INFO L168 Benchmark]: Toolchain (without parser) took 32163.51 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 30.2 MB in the beginning and 35.2 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:02,392 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 52.4 MB. Free memory was 35.2 MB in the beginning and 35.1 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:56:02,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.08 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 30.0 MB in the beginning and 49.4 MB in the end (delta: -19.5 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:02,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.03 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 47.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:02,393 INFO L168 Benchmark]: Boogie Preprocessor took 78.09 ms. Allocated memory is still 67.1 MB. Free memory was 47.3 MB in the beginning and 45.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:02,394 INFO L168 Benchmark]: RCFGBuilder took 9016.01 ms. Allocated memory is still 67.1 MB. Free memory was 45.3 MB in the beginning and 33.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:02,394 INFO L168 Benchmark]: TraceAbstraction took 22445.90 ms. Allocated memory is still 67.1 MB. Free memory was 49.5 MB in the beginning and 41.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:02,395 INFO L168 Benchmark]: Witness Printer took 113.36 ms. Allocated memory is still 67.1 MB. Free memory was 41.5 MB in the beginning and 35.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:02,397 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 52.4 MB. Free memory was 35.2 MB in the beginning and 35.1 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 408.08 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 30.0 MB in the beginning and 49.4 MB in the end (delta: -19.5 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.03 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 47.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.09 ms. Allocated memory is still 67.1 MB. Free memory was 47.3 MB in the beginning and 45.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 9016.01 ms. Allocated memory is still 67.1 MB. Free memory was 45.3 MB in the beginning and 33.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 22445.90 ms. Allocated memory is still 67.1 MB. Free memory was 49.5 MB in the beginning and 41.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. * Witness Printer took 113.36 ms. Allocated memory is still 67.1 MB. Free memory was 41.5 MB in the beginning and 35.2 MB in the end (delta: 6.3 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant [2020-11-30 01:56:02,408 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:56:02,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,413 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:56:02,413 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,413 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && x == ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 43]: Loop Invariant [2020-11-30 01:56:02,415 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:56:02,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,416 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:56:02,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:56:02,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && huge_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 16.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 102 SDtfs, 91 SDslu, 191 SDs, 0 SdLazy, 72 SolverSat, 5 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 15.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 48 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 2 QuantifiedInterpolants, 9500 SizeOfPredicates, 19 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...