./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0260.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0260.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P --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 6b6d3122b178b780d1952c5380c2131a477762b03e7beef2834a26791e72c7fe --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:03:28,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:03:28,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:03:28,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:03:28,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:03:28,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:03:28,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:03:28,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:03:28,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:03:28,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:03:28,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:03:28,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:03:28,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:03:28,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:03:28,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:03:28,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:03:28,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:03:28,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:03:28,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:03:28,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:03:28,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:03:28,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:03:28,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:03:28,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:03:28,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:03:28,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:03:28,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:03:28,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:03:28,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:03:28,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:03:28,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:03:28,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:03:28,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:03:28,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:03:28,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:03:28,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:03:28,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:03:28,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:03:28,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:03:28,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:03:28,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:03:28,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 00:03:28,373 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:03:28,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:03:28,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:03:28,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:03:28,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:03:28,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:03:28,376 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:03:28,376 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:03:28,376 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:03:28,376 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:03:28,377 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:03:28,378 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:03:28,378 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:03:28,378 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:03:28,379 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:03:28,379 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:03:28,379 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:03:28,379 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:03:28,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:03:28,380 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:03:28,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:03:28,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:03:28,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:03:28,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:03:28,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:03:28,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:03:28,383 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:03:28,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:03:28,384 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:03:28,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:03:28,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:03:28,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:03:28,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:03:28,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:03:28,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:03:28,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:03:28,386 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:03:28,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:03:28,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:03:28,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:03:28,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:03:28,387 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_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b6d3122b178b780d1952c5380c2131a477762b03e7beef2834a26791e72c7fe [2021-11-21 00:03:28,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:03:28,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:03:28,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:03:28,718 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:03:28,719 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:03:28,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/double_req_bl_0260.c [2021-11-21 00:03:28,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/data/43ef5c18b/1bebd59bb9a94763b2ddfa29a549e273/FLAGd660bce24 [2021-11-21 00:03:29,241 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:03:29,242 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/sv-benchmarks/c/float-newlib/double_req_bl_0260.c [2021-11-21 00:03:29,251 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/data/43ef5c18b/1bebd59bb9a94763b2ddfa29a549e273/FLAGd660bce24 [2021-11-21 00:03:29,627 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/data/43ef5c18b/1bebd59bb9a94763b2ddfa29a549e273 [2021-11-21 00:03:29,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:03:29,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:03:29,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:03:29,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:03:29,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:03:29,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:03:29" (1/1) ... [2021-11-21 00:03:29,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72520088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:29, skipping insertion in model container [2021-11-21 00:03:29,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:03:29" (1/1) ... [2021-11-21 00:03:29,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:03:29,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:03:29,952 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/sv-benchmarks/c/float-newlib/double_req_bl_0260.c[5941,5954] [2021-11-21 00:03:29,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:03:29,963 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:03:30,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/sv-benchmarks/c/float-newlib/double_req_bl_0260.c[5941,5954] [2021-11-21 00:03:30,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:03:30,060 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:03:30,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:30 WrapperNode [2021-11-21 00:03:30,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:03:30,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:03:30,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:03:30,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:03:30,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:30" (1/1) ... [2021-11-21 00:03:30,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:30" (1/1) ... [2021-11-21 00:03:30,141 INFO L137 Inliner]: procedures = 18, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 291 [2021-11-21 00:03:30,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:03:30,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:03:30,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:03:30,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:03:30,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:30" (1/1) ... [2021-11-21 00:03:30,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:30" (1/1) ... [2021-11-21 00:03:30,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:30" (1/1) ... [2021-11-21 00:03:30,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:30" (1/1) ... [2021-11-21 00:03:30,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:30" (1/1) ... [2021-11-21 00:03:30,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:30" (1/1) ... [2021-11-21 00:03:30,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:30" (1/1) ... [2021-11-21 00:03:30,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:03:30,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:03:30,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:03:30,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:03:30,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:30" (1/1) ... [2021-11-21 00:03:30,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:03:30,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:03:30,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:03:30,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:03:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:03:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:03:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:03:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-21 00:03:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:03:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-21 00:03:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:03:30,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:03:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:03:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:03:30,424 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:03:30,426 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:03:30,877 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:03:31,084 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:03:31,085 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-21 00:03:31,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:03:31 BoogieIcfgContainer [2021-11-21 00:03:31,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:03:31,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:03:31,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:03:31,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:03:31,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:03:29" (1/3) ... [2021-11-21 00:03:31,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c4e057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:03:31, skipping insertion in model container [2021-11-21 00:03:31,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:30" (2/3) ... [2021-11-21 00:03:31,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c4e057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:03:31, skipping insertion in model container [2021-11-21 00:03:31,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:03:31" (3/3) ... [2021-11-21 00:03:31,098 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0260.c [2021-11-21 00:03:31,108 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:03:31,109 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:03:31,175 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:03:31,190 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:03:31,190 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:03:31,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 43 states have (on average 1.697674418604651) internal successors, (73), 44 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:03:31,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:03:31,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:03:31,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:03:31,225 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:03:31,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:03:31,231 INFO L85 PathProgramCache]: Analyzing trace with hash -233227409, now seen corresponding path program 1 times [2021-11-21 00:03:31,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:03:31,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525364798] [2021-11-21 00:03:31,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:03:31,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:03:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:03:31,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:03:31,380 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:03:31,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525364798] [2021-11-21 00:03:31,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525364798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:03:31,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:03:31,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:03:31,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142225123] [2021-11-21 00:03:31,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:03:31,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:03:31,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:03:31,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:03:31,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:03:31,416 INFO L87 Difference]: Start difference. First operand has 45 states, 43 states have (on average 1.697674418604651) internal successors, (73), 44 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:03:31,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:03:31,508 INFO L93 Difference]: Finished difference Result 89 states and 145 transitions. [2021-11-21 00:03:31,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:03:31,510 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-21 00:03:31,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:03:31,519 INFO L225 Difference]: With dead ends: 89 [2021-11-21 00:03:31,519 INFO L226 Difference]: Without dead ends: 43 [2021-11-21 00:03:31,522 INFO L932 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 [2021-11-21 00:03:31,526 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:03:31,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:03:31,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-21 00:03:31,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-21 00:03:31,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 42 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:03:31,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2021-11-21 00:03:31,559 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 9 [2021-11-21 00:03:31,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:03:31,560 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2021-11-21 00:03:31,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:03:31,560 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2021-11-21 00:03:31,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 00:03:31,561 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:03:31,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:03:31,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:03:31,562 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:03:31,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:03:31,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1691897347, now seen corresponding path program 1 times [2021-11-21 00:03:31,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:03:31,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524730793] [2021-11-21 00:03:31,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:03:31,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:03:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:03:31,602 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 00:03:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:03:31,650 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 00:03:31,650 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 00:03:31,652 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 00:03:31,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:03:31,657 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-21 00:03:31,660 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:03:31,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:03:31 BoogieIcfgContainer [2021-11-21 00:03:31,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:03:31,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:03:31,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:03:31,699 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:03:31,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:03:31" (3/4) ... [2021-11-21 00:03:31,703 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 00:03:31,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:03:31,707 INFO L158 Benchmark]: Toolchain (without parser) took 2073.89ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 56.4MB in the beginning and 85.4MB in the end (delta: -29.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:03:31,708 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 64.9MB in the beginning and 64.9MB in the end (delta: 25.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:03:31,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.52ms. Allocated memory is still 92.3MB. Free memory was 56.1MB in the beginning and 62.3MB in the end (delta: -6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 00:03:31,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.40ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 59.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:03:31,711 INFO L158 Benchmark]: Boogie Preprocessor took 40.10ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 57.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:03:31,712 INFO L158 Benchmark]: RCFGBuilder took 888.28ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 57.2MB in the beginning and 79.4MB in the end (delta: -22.3MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2021-11-21 00:03:31,714 INFO L158 Benchmark]: TraceAbstraction took 602.97ms. Allocated memory is still 111.1MB. Free memory was 78.9MB in the beginning and 51.2MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-21 00:03:31,714 INFO L158 Benchmark]: Witness Printer took 4.14ms. Allocated memory is still 111.1MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:03:31,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 64.9MB in the beginning and 64.9MB in the end (delta: 25.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.52ms. Allocated memory is still 92.3MB. Free memory was 56.1MB in the beginning and 62.3MB in the end (delta: -6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.40ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 59.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.10ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 57.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 888.28ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 57.2MB in the beginning and 79.4MB in the end (delta: -22.3MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * TraceAbstraction took 602.97ms. Allocated memory is still 111.1MB. Free memory was 78.9MB in the beginning and 51.2MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.14ms. Allocated memory is still 111.1MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 245]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 154, overapproximation of someBinaryArithmeticDOUBLEoperation at line 189, overapproximation of bitwiseAnd at line 172, overapproximation of someBinaryDOUBLEComparisonOperation at line 19. Possible FailurePath: [L21] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L148-L162] static const double one_asin = 1.00000000000000000000e+00, huge_asin = 1.000e+300, pio2_hi_asin = 1.57079632679489655800e+00, pio2_lo_asin = 6.12323399573676603587e-17, pio4_hi_asin = 7.85398163397448278999e-01, pS0_asin = 1.66666666666666657415e-01, pS1_asin = -3.25565818622400915405e-01, pS2_asin = 2.01212532134862925881e-01, pS3_asin = -4.00555345006794114027e-02, pS4_asin = 7.91534994289814532176e-04, pS5_asin = 3.47933107596021167570e-05, qS1_asin = -2.40339491173441421878e+00, qS2_asin = 2.02094576023350569471e+00, qS3_asin = -6.88283971605453293030e-01, qS4_asin = 7.70381505559019352791e-02; [L240] double x = 0.0 / 0.0; [L241] CALL, EXPR __ieee754_asin(x) [L165] double t, w, p, q, c, r, s; [L166] __int32_t hx, ix; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L173] COND FALSE !(ix >= 0x3ff00000) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, ix=1044381696, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L184] COND TRUE ix < 0x3fe00000 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, ix=1044381696, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L185] COND FALSE !(ix < 0x3e400000) [L189] t = x * x [L190-L193] p = t * (pS0_asin + t * (pS1_asin + t * (pS2_asin + t * (pS3_asin + t * (pS4_asin + t * pS5_asin))))) [L194-L195] q = one_asin + t * (qS1_asin + t * (qS2_asin + t * (qS3_asin + t * qS4_asin))) [L196] w = p / q [L197] return x + x * w; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, ix=1044381696, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] [L241] RET, EXPR __ieee754_asin(x) [L241] double res = __ieee754_asin(x); [L244] CALL, EXPR isnan_double(res) [L19] return x != x; [L244] RET, EXPR isnan_double(res) [L244] COND TRUE !isnan_double(res) [L245] reach_error() VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 44 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, 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=45occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2021-11-21 00:03:31,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0260.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P --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 6b6d3122b178b780d1952c5380c2131a477762b03e7beef2834a26791e72c7fe --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:03:34,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:03:34,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:03:34,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:03:34,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:03:34,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:03:34,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:03:34,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:03:34,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:03:34,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:03:34,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:03:34,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:03:34,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:03:34,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:03:34,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:03:34,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:03:34,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:03:34,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:03:34,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:03:34,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:03:34,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:03:34,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:03:34,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:03:34,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:03:34,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:03:34,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:03:34,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:03:34,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:03:34,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:03:34,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:03:34,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:03:34,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:03:34,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:03:34,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:03:34,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:03:34,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:03:34,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:03:34,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:03:34,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:03:34,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:03:34,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:03:34,284 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 00:03:34,325 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:03:34,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:03:34,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:03:34,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:03:34,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:03:34,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:03:34,328 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:03:34,328 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:03:34,328 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:03:34,328 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:03:34,329 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:03:34,330 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:03:34,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:03:34,331 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:03:34,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:03:34,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:03:34,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:03:34,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:03:34,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:03:34,332 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 00:03:34,332 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 00:03:34,333 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:03:34,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:03:34,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:03:34,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:03:34,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:03:34,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 00:03:34,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:03:34,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:03:34,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:03:34,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:03:34,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:03:34,335 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 00:03:34,335 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 00:03:34,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:03:34,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:03:34,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:03:34,336 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_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b6d3122b178b780d1952c5380c2131a477762b03e7beef2834a26791e72c7fe [2021-11-21 00:03:34,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:03:34,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:03:34,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:03:34,730 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:03:34,731 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:03:34,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/double_req_bl_0260.c [2021-11-21 00:03:34,801 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/data/6afa25bec/00bd9129282a4c3b993821cbb1fddf9e/FLAG36bf84d82 [2021-11-21 00:03:35,317 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:03:35,319 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/sv-benchmarks/c/float-newlib/double_req_bl_0260.c [2021-11-21 00:03:35,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/data/6afa25bec/00bd9129282a4c3b993821cbb1fddf9e/FLAG36bf84d82 [2021-11-21 00:03:35,642 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/data/6afa25bec/00bd9129282a4c3b993821cbb1fddf9e [2021-11-21 00:03:35,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:03:35,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:03:35,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:03:35,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:03:35,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:03:35,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:03:35" (1/1) ... [2021-11-21 00:03:35,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a28eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:35, skipping insertion in model container [2021-11-21 00:03:35,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:03:35" (1/1) ... [2021-11-21 00:03:35,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:03:35,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:03:35,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/sv-benchmarks/c/float-newlib/double_req_bl_0260.c[5941,5954] [2021-11-21 00:03:35,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:03:35,953 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:03:36,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/sv-benchmarks/c/float-newlib/double_req_bl_0260.c[5941,5954] [2021-11-21 00:03:36,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:03:36,035 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:03:36,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:36 WrapperNode [2021-11-21 00:03:36,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:03:36,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:03:36,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:03:36,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:03:36,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:36" (1/1) ... [2021-11-21 00:03:36,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:36" (1/1) ... [2021-11-21 00:03:36,127 INFO L137 Inliner]: procedures = 21, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 291 [2021-11-21 00:03:36,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:03:36,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:03:36,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:03:36,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:03:36,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:36" (1/1) ... [2021-11-21 00:03:36,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:36" (1/1) ... [2021-11-21 00:03:36,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:36" (1/1) ... [2021-11-21 00:03:36,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:36" (1/1) ... [2021-11-21 00:03:36,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:36" (1/1) ... [2021-11-21 00:03:36,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:36" (1/1) ... [2021-11-21 00:03:36,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:36" (1/1) ... [2021-11-21 00:03:36,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:03:36,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:03:36,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:03:36,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:03:36,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:36" (1/1) ... [2021-11-21 00:03:36,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:03:36,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:03:36,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:03:36,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:03:36,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:03:36,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-21 00:03:36,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-21 00:03:36,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 00:03:36,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:03:36,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 00:03:36,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:03:36,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:03:36,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 00:03:36,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:03:36,491 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:03:36,493 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:03:53,692 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:03:53,701 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:03:53,701 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-21 00:03:53,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:03:53 BoogieIcfgContainer [2021-11-21 00:03:53,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:03:53,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:03:53,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:03:53,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:03:53,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:03:35" (1/3) ... [2021-11-21 00:03:53,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8ddf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:03:53, skipping insertion in model container [2021-11-21 00:03:53,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:03:36" (2/3) ... [2021-11-21 00:03:53,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8ddf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:03:53, skipping insertion in model container [2021-11-21 00:03:53,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:03:53" (3/3) ... [2021-11-21 00:03:53,715 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0260.c [2021-11-21 00:03:53,725 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:03:53,725 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:03:53,784 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:03:53,795 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:03:53,798 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:03:53,818 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 70 states have (on average 1.6714285714285715) internal successors, (117), 71 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:03:53,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 00:03:53,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:03:53,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:03:53,825 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:03:53,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:03:53,836 INFO L85 PathProgramCache]: Analyzing trace with hash 2046089236, now seen corresponding path program 1 times [2021-11-21 00:03:53,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:03:53,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998508686] [2021-11-21 00:03:53,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:03:53,850 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:03:53,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:03:53,857 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:03:53,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 00:03:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:03:54,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 00:03:54,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:03:54,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:03:54,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:03:55,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:03:55,235 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:03:55,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998508686] [2021-11-21 00:03:55,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998508686] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:03:55,236 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:03:55,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:03:55,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165927718] [2021-11-21 00:03:55,239 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:03:55,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:03:55,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:03:55,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:03:55,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:03:55,302 INFO L87 Difference]: Start difference. First operand has 72 states, 70 states have (on average 1.6714285714285715) internal successors, (117), 71 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:03:55,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:03:55,331 INFO L93 Difference]: Finished difference Result 142 states and 232 transitions. [2021-11-21 00:03:55,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:03:55,333 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 00:03:55,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:03:55,342 INFO L225 Difference]: With dead ends: 142 [2021-11-21 00:03:55,343 INFO L226 Difference]: Without dead ends: 69 [2021-11-21 00:03:55,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:03:55,350 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:03:55,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:03:55,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-21 00:03:55,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-21 00:03:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 68 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:03:55,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2021-11-21 00:03:55,382 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 11 [2021-11-21 00:03:55,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:03:55,382 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2021-11-21 00:03:55,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:03:55,383 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2021-11-21 00:03:55,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 00:03:55,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:03:55,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:03:55,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:03:55,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:03:55,592 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:03:55,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:03:55,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1615635862, now seen corresponding path program 1 times [2021-11-21 00:03:55,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:03:55,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126625832] [2021-11-21 00:03:55,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:03:55,595 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:03:55,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:03:55,609 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:03:55,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 00:03:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:04:00,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:04:00,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:04:01,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:04:01,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:04:03,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:04:03,165 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:04:03,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126625832] [2021-11-21 00:04:03,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126625832] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:04:03,166 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:04:03,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-21 00:04:03,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778965246] [2021-11-21 00:04:03,167 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:04:03,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:04:03,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:04:03,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:04:03,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:04:03,171 INFO L87 Difference]: Start difference. First operand 69 states and 95 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:06,026 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:04:06,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:04:06,032 INFO L93 Difference]: Finished difference Result 79 states and 103 transitions. [2021-11-21 00:04:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:04:06,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-21 00:04:06,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:04:06,240 INFO L225 Difference]: With dead ends: 79 [2021-11-21 00:04:06,241 INFO L226 Difference]: Without dead ends: 19 [2021-11-21 00:04:06,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:04:06,244 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:04:06,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 46 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 10 Unchecked, 2.8s Time] [2021-11-21 00:04:06,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-21 00:04:06,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2021-11-21 00:04:06,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:06,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-11-21 00:04:06,250 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-11-21 00:04:06,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:04:06,251 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-11-21 00:04:06,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:06,251 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-11-21 00:04:06,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 00:04:06,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:04:06,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:04:06,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:04:06,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:04:06,453 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:04:06,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:04:06,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1311586218, now seen corresponding path program 1 times [2021-11-21 00:04:06,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:04:06,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764204970] [2021-11-21 00:04:06,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:04:06,455 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:04:06,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:04:06,456 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:04:06,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 00:04:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:04:07,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:04:07,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:04:09,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:04:09,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:04:10,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:04:10,582 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:04:10,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [764204970] [2021-11-21 00:04:10,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [764204970] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:04:10,583 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:04:10,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-21 00:04:10,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108100112] [2021-11-21 00:04:10,584 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:04:10,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:04:10,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:04:10,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:04:10,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:04:10,586 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:10,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:04:10,590 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-11-21 00:04:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:04:10,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-21 00:04:10,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:04:10,591 INFO L225 Difference]: With dead ends: 19 [2021-11-21 00:04:10,591 INFO L226 Difference]: Without dead ends: 14 [2021-11-21 00:04:10,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:04:10,594 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:04:10,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2021-11-21 00:04:10,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-21 00:04:10,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-21 00:04:10,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:10,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-11-21 00:04:10,599 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2021-11-21 00:04:10,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:04:10,600 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-11-21 00:04:10,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:10,601 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-11-21 00:04:10,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 00:04:10,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:04:10,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:04:10,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:04:10,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:04:10,821 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:04:10,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:04:10,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1309739176, now seen corresponding path program 1 times [2021-11-21 00:04:10,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:04:10,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431980694] [2021-11-21 00:04:10,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:04:10,823 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:04:10,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:04:10,825 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:04:10,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 00:04:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:04:11,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 00:04:11,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:04:13,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:04:13,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:04:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:04:15,446 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:04:15,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431980694] [2021-11-21 00:04:15,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431980694] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:04:15,447 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:04:15,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2021-11-21 00:04:15,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87502160] [2021-11-21 00:04:15,447 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:04:15,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 00:04:15,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:04:15,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 00:04:15,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:04:15,449 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:17,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:04:18,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:04:18,908 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-11-21 00:04:18,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:04:18,908 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-21 00:04:18,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:04:18,909 INFO L225 Difference]: With dead ends: 14 [2021-11-21 00:04:18,909 INFO L226 Difference]: Without dead ends: 0 [2021-11-21 00:04:18,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-21 00:04:18,911 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:04:18,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 30 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-21 00:04:18,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-21 00:04:18,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-21 00:04:18,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:18,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-21 00:04:18,913 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-21 00:04:18,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:04:18,914 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-21 00:04:18,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:18,914 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-21 00:04:18,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 00:04:18,918 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 00:04:18,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-21 00:04:19,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:04:19,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-21 00:04:20,356 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 199) no Hoare annotation was computed. [2021-11-21 00:04:20,357 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 184 199) no Hoare annotation was computed. [2021-11-21 00:04:20,357 INFO L854 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asin_~x#1| (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res#1|) (= |ULTIMATE.start___ieee754_asin_#res#1| (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse1 .cse1)))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-21 00:04:20,357 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-21 00:04:20,358 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 198) no Hoare annotation was computed. [2021-11-21 00:04:20,358 INFO L854 garLoopResultBuilder]: At program point L86-2(lines 86 102) the Hoare annotation is: false [2021-11-21 00:04:20,358 INFO L858 garLoopResultBuilder]: For program point L86-3(lines 23 131) no Hoare annotation was computed. [2021-11-21 00:04:20,358 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 187) no Hoare annotation was computed. [2021-11-21 00:04:20,359 INFO L858 garLoopResultBuilder]: For program point L54-2(lines 54 55) no Hoare annotation was computed. [2021-11-21 00:04:20,359 INFO L854 garLoopResultBuilder]: At program point L54-3(lines 54 55) the Hoare annotation is: false [2021-11-21 00:04:20,359 INFO L858 garLoopResultBuilder]: For program point L54-4(lines 54 55) no Hoare annotation was computed. [2021-11-21 00:04:20,359 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 118) no Hoare annotation was computed. [2021-11-21 00:04:20,360 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 122) no Hoare annotation was computed. [2021-11-21 00:04:20,360 INFO L858 garLoopResultBuilder]: For program point L121-2(lines 121 122) no Hoare annotation was computed. [2021-11-21 00:04:20,360 INFO L858 garLoopResultBuilder]: For program point L89(lines 89 98) no Hoare annotation was computed. [2021-11-21 00:04:20,360 INFO L858 garLoopResultBuilder]: For program point L89-2(lines 89 98) no Hoare annotation was computed. [2021-11-21 00:04:20,361 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 144) no Hoare annotation was computed. [2021-11-21 00:04:20,361 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 132 146) no Hoare annotation was computed. [2021-11-21 00:04:20,361 INFO L858 garLoopResultBuilder]: For program point L106(lines 106 117) no Hoare annotation was computed. [2021-11-21 00:04:20,361 INFO L858 garLoopResultBuilder]: For program point L139-2(lines 139 144) no Hoare annotation was computed. [2021-11-21 00:04:20,362 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 45) no Hoare annotation was computed. [2021-11-21 00:04:20,362 INFO L854 garLoopResultBuilder]: At program point L73-2(lines 73 83) the Hoare annotation is: false [2021-11-21 00:04:20,362 INFO L858 garLoopResultBuilder]: For program point L40-2(lines 40 45) no Hoare annotation was computed. [2021-11-21 00:04:20,362 INFO L858 garLoopResultBuilder]: For program point L73-3(lines 73 83) no Hoare annotation was computed. [2021-11-21 00:04:20,363 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 199) no Hoare annotation was computed. [2021-11-21 00:04:20,363 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 44) no Hoare annotation was computed. [2021-11-21 00:04:20,363 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-21 00:04:20,363 INFO L858 garLoopResultBuilder]: For program point L91(lines 91 92) no Hoare annotation was computed. [2021-11-21 00:04:20,364 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 129) no Hoare annotation was computed. [2021-11-21 00:04:20,364 INFO L854 garLoopResultBuilder]: At program point L124-2(lines 124 129) the Hoare annotation is: false [2021-11-21 00:04:20,364 INFO L858 garLoopResultBuilder]: For program point L91-2(lines 91 92) no Hoare annotation was computed. [2021-11-21 00:04:20,364 INFO L858 garLoopResultBuilder]: For program point L124-3(lines 124 129) no Hoare annotation was computed. [2021-11-21 00:04:20,365 INFO L858 garLoopResultBuilder]: For program point L108(lines 108 116) no Hoare annotation was computed. [2021-11-21 00:04:20,365 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 79) no Hoare annotation was computed. [2021-11-21 00:04:20,365 INFO L858 garLoopResultBuilder]: For program point L75-2(lines 75 79) no Hoare annotation was computed. [2021-11-21 00:04:20,365 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 175 179) no Hoare annotation was computed. [2021-11-21 00:04:20,366 INFO L854 garLoopResultBuilder]: At program point L175-2(lines 175 179) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asin_~x#1| (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (exists ((|v_skolemized_q#valueAsBitvector_14| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_14|)) |ULTIMATE.start___ieee754_asin_~ix~0#1|) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_14|))))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-21 00:04:20,366 INFO L858 garLoopResultBuilder]: For program point L175-3(lines 173 184) no Hoare annotation was computed. [2021-11-21 00:04:20,366 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 44) no Hoare annotation was computed. [2021-11-21 00:04:20,366 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 95) no Hoare annotation was computed. [2021-11-21 00:04:20,367 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-21 00:04:20,367 INFO L858 garLoopResultBuilder]: For program point L94-2(lines 94 95) no Hoare annotation was computed. [2021-11-21 00:04:20,367 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 226) no Hoare annotation was computed. [2021-11-21 00:04:20,367 INFO L858 garLoopResultBuilder]: For program point L210-2(lines 164 231) no Hoare annotation was computed. [2021-11-21 00:04:20,368 INFO L858 garLoopResultBuilder]: For program point L111(lines 111 116) no Hoare annotation was computed. [2021-11-21 00:04:20,368 INFO L858 garLoopResultBuilder]: For program point L62(lines 62 65) no Hoare annotation was computed. [2021-11-21 00:04:20,368 INFO L858 garLoopResultBuilder]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2021-11-21 00:04:20,368 INFO L858 garLoopResultBuilder]: For program point L62-2(lines 62 65) no Hoare annotation was computed. [2021-11-21 00:04:20,369 INFO L854 garLoopResultBuilder]: At program point L29-2(lines 29 34) the Hoare annotation is: false [2021-11-21 00:04:20,369 INFO L858 garLoopResultBuilder]: For program point L29-3(lines 23 131) no Hoare annotation was computed. [2021-11-21 00:04:20,369 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 247) no Hoare annotation was computed. [2021-11-21 00:04:20,369 INFO L854 garLoopResultBuilder]: At program point L145(lines 132 146) the Hoare annotation is: false [2021-11-21 00:04:20,370 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 113) no Hoare annotation was computed. [2021-11-21 00:04:20,370 INFO L858 garLoopResultBuilder]: For program point L112-2(lines 112 113) no Hoare annotation was computed. [2021-11-21 00:04:20,370 INFO L858 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-11-21 00:04:20,370 INFO L854 garLoopResultBuilder]: At program point L130(lines 23 131) the Hoare annotation is: false [2021-11-21 00:04:20,371 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 59) no Hoare annotation was computed. [2021-11-21 00:04:20,371 INFO L858 garLoopResultBuilder]: For program point L48-2(lines 48 59) no Hoare annotation was computed. [2021-11-21 00:04:20,371 INFO L854 garLoopResultBuilder]: At program point L230(lines 164 231) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asin_~x#1| (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= |ULTIMATE.start___ieee754_asin_#res#1| (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse1 .cse1)))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-21 00:04:20,371 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-21 00:04:20,372 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-11-21 00:04:20,372 INFO L854 garLoopResultBuilder]: At program point L49-2(lines 49 53) the Hoare annotation is: false [2021-11-21 00:04:20,372 INFO L858 garLoopResultBuilder]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2021-11-21 00:04:20,383 INFO L858 garLoopResultBuilder]: For program point L215-1(lines 215 220) no Hoare annotation was computed. [2021-11-21 00:04:20,383 INFO L854 garLoopResultBuilder]: At program point L215-2(lines 215 220) the Hoare annotation is: false [2021-11-21 00:04:20,384 INFO L858 garLoopResultBuilder]: For program point L215-3(lines 215 220) no Hoare annotation was computed. [2021-11-21 00:04:20,384 INFO L861 garLoopResultBuilder]: At program point L249(lines 233 250) the Hoare annotation is: true [2021-11-21 00:04:20,384 INFO L858 garLoopResultBuilder]: For program point L167-1(lines 167 171) no Hoare annotation was computed. [2021-11-21 00:04:20,384 INFO L854 garLoopResultBuilder]: At program point L167-2(lines 167 171) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_asin_~x#1| (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))))) [2021-11-21 00:04:20,384 INFO L858 garLoopResultBuilder]: For program point L134-1(lines 134 138) no Hoare annotation was computed. [2021-11-21 00:04:20,385 INFO L858 garLoopResultBuilder]: For program point L167-3(lines 167 171) no Hoare annotation was computed. [2021-11-21 00:04:20,385 INFO L854 garLoopResultBuilder]: At program point L134-2(lines 134 138) the Hoare annotation is: false [2021-11-21 00:04:20,389 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-21 00:04:20,390 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:04:20,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:04:20,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,411 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:04:20,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,413 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,413 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,414 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,414 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,414 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,414 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,415 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,415 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,415 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,417 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,417 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,418 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,422 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:04:20,423 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:04:20,424 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,424 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,425 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,425 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,425 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,425 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,426 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,426 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,428 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,429 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,429 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,429 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,429 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,430 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,430 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,430 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:04:20 BoogieIcfgContainer [2021-11-21 00:04:20,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:04:20,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:04:20,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:04:20,442 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:04:20,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:03:53" (3/4) ... [2021-11-21 00:04:20,446 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 00:04:20,468 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-21 00:04:20,468 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-21 00:04:20,468 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-21 00:04:20,469 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 00:04:20,499 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2021-11-21 00:04:20,500 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && (\exists v_skolemized_q#valueAsBitvector_14 : bv64, currentRoundingMode : FloatRoundingMode :: ~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_14[63:32]) == ix && ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-21 00:04:20,500 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-21 00:04:20,501 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-21 00:04:20,529 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 00:04:20,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:04:20,530 INFO L158 Benchmark]: Toolchain (without parser) took 44884.28ms. Allocated memory was 58.7MB in the beginning and 79.7MB in the end (delta: 21.0MB). Free memory was 38.4MB in the beginning and 48.9MB in the end (delta: -10.5MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-11-21 00:04:20,531 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:04:20,531 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.59ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 37.0MB in the end (delta: 1.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-21 00:04:20,531 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.96ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 34.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:04:20,532 INFO L158 Benchmark]: Boogie Preprocessor took 69.43ms. Allocated memory is still 58.7MB. Free memory was 34.3MB in the beginning and 32.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:04:20,532 INFO L158 Benchmark]: RCFGBuilder took 17505.64ms. Allocated memory was 58.7MB in the beginning and 79.7MB in the end (delta: 21.0MB). Free memory was 31.8MB in the beginning and 46.6MB in the end (delta: -14.8MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-11-21 00:04:20,533 INFO L158 Benchmark]: TraceAbstraction took 26734.60ms. Allocated memory is still 79.7MB. Free memory was 45.9MB in the beginning and 55.2MB in the end (delta: -9.3MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-11-21 00:04:20,533 INFO L158 Benchmark]: Witness Printer took 88.22ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 48.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-21 00:04:20,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.59ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 37.0MB in the end (delta: 1.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.96ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 34.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.43ms. Allocated memory is still 58.7MB. Free memory was 34.3MB in the beginning and 32.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 17505.64ms. Allocated memory was 58.7MB in the beginning and 79.7MB in the end (delta: 21.0MB). Free memory was 31.8MB in the beginning and 46.6MB in the end (delta: -14.8MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * TraceAbstraction took 26734.60ms. Allocated memory is still 79.7MB. Free memory was 45.9MB in the beginning and 55.2MB in the end (delta: -9.3MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Witness Printer took 88.22ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 48.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 - 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 - 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 - 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 - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 - 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 - 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 - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 245]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 210 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 17 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 123 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 20 NumberOfFragments, 123 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 6.4s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 19 QuantifiedInterpolants, 487 SizeOfPredicates, 27 NumberOfNonLiveVariables, 236 ConjunctsInSsa, 28 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant [2021-11-21 00:04:20,550 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,550 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:04:20,550 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,550 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,551 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,551 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,551 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,552 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:04:20,552 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,552 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,552 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2021-11-21 00:04:20,552 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && (\exists v_skolemized_q#valueAsBitvector_14 : bv64, currentRoundingMode : FloatRoundingMode :: ~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_14[63:32]) == ix && ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 164]: Loop Invariant [2021-11-21 00:04:20,553 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,553 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,553 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,553 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,554 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,554 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,554 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,554 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,555 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,555 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,555 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,555 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,555 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,556 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,556 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,556 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 167]: Loop Invariant [2021-11-21 00:04:20,557 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,557 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:04:20,557 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,558 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2021-11-21 00:04:20,558 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,559 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,559 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,559 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,559 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,559 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,559 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,560 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,560 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,560 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,560 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,561 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,561 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,561 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,561 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:04:20,561 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-21 00:04:20,788 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-21 00:04:20,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c9d7e70-8318-45bf-b9e3-fe6d12f8fc47/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE