./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0661b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0661b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V --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 5b54c6a24c7834c05e2221d759ec8f9e3812bd18d8b6db36bcc9d2c0f76c5ecf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:56:01,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:56:01,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:56:01,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:56:01,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:56:01,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:56:01,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:56:01,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:56:01,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:56:01,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:56:01,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:56:01,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:56:01,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:56:01,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:56:01,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:56:01,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:56:01,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:56:01,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:56:01,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:56:01,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:56:01,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:56:01,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:56:01,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:56:01,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:56:01,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:56:01,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:56:01,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:56:01,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:56:01,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:56:01,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:56:01,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:56:01,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:56:01,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:56:01,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:56:01,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:56:01,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:56:01,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:56:01,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:56:01,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:56:01,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:56:01,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:56:01,339 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:56:01,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:56:01,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:56:01,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:56:01,388 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:56:01,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:56:01,389 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:56:01,389 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:56:01,389 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:56:01,389 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:56:01,390 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:56:01,391 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:56:01,391 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:56:01,391 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:56:01,391 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:56:01,392 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:56:01,392 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:56:01,392 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:56:01,392 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:56:01,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:56:01,393 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:56:01,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:56:01,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:56:01,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:56:01,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:56:01,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:56:01,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:56:01,396 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:56:01,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:56:01,396 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:56:01,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:56:01,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:56:01,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:56:01,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:56:01,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:56:01,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:56:01,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:56:01,398 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:56:01,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:56:01,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:56:01,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:56:01,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:56:01,399 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_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b54c6a24c7834c05e2221d759ec8f9e3812bd18d8b6db36bcc9d2c0f76c5ecf [2021-11-23 03:56:01,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:56:01,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:56:01,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:56:01,680 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:56:01,681 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:56:01,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/double_req_bl_0661b.c [2021-11-23 03:56:01,759 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/data/db1f9f2bc/740d1f7c6f4c457796932273105a3fcf/FLAG25cdeb146 [2021-11-23 03:56:02,261 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:56:02,262 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/sv-benchmarks/c/float-newlib/double_req_bl_0661b.c [2021-11-23 03:56:02,277 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/data/db1f9f2bc/740d1f7c6f4c457796932273105a3fcf/FLAG25cdeb146 [2021-11-23 03:56:02,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/data/db1f9f2bc/740d1f7c6f4c457796932273105a3fcf [2021-11-23 03:56:02,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:56:02,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:56:02,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:56:02,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:56:02,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:56:02,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:02" (1/1) ... [2021-11-23 03:56:02,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a336386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:02, skipping insertion in model container [2021-11-23 03:56:02,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:02" (1/1) ... [2021-11-23 03:56:02,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:56:02,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:56:02,926 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_ce3127fc-a9b6-460a-b663-77e2baae02fe/sv-benchmarks/c/float-newlib/double_req_bl_0661b.c[6444,6457] [2021-11-23 03:56:02,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:56:02,940 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:56:02,991 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_ce3127fc-a9b6-460a-b663-77e2baae02fe/sv-benchmarks/c/float-newlib/double_req_bl_0661b.c[6444,6457] [2021-11-23 03:56:02,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:56:03,009 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:56:03,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:03 WrapperNode [2021-11-23 03:56:03,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:56:03,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:56:03,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:56:03,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:56:03,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:03" (1/1) ... [2021-11-23 03:56:03,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:03" (1/1) ... [2021-11-23 03:56:03,094 INFO L137 Inliner]: procedures = 20, calls = 92, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 251 [2021-11-23 03:56:03,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:56:03,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:56:03,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:56:03,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:56:03,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:03" (1/1) ... [2021-11-23 03:56:03,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:03" (1/1) ... [2021-11-23 03:56:03,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:03" (1/1) ... [2021-11-23 03:56:03,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:03" (1/1) ... [2021-11-23 03:56:03,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:03" (1/1) ... [2021-11-23 03:56:03,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:03" (1/1) ... [2021-11-23 03:56:03,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:03" (1/1) ... [2021-11-23 03:56:03,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:56:03,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:56:03,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:56:03,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:56:03,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:03" (1/1) ... [2021-11-23 03:56:03,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:56:03,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:56:03,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:56:03,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:56:03,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:56:03,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:56:03,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:56:03,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 03:56:03,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:56:03,254 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-23 03:56:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-23 03:56:03,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 03:56:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-23 03:56:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-23 03:56:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:56:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:56:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:56:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-23 03:56:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:56:03,346 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:56:03,348 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:56:03,873 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:56:03,946 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:56:03,946 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-23 03:56:03,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:03 BoogieIcfgContainer [2021-11-23 03:56:03,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:56:03,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:56:03,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:56:03,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:56:03,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:56:02" (1/3) ... [2021-11-23 03:56:03,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af54a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:56:03, skipping insertion in model container [2021-11-23 03:56:03,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:03" (2/3) ... [2021-11-23 03:56:03,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af54a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:56:03, skipping insertion in model container [2021-11-23 03:56:03,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:03" (3/3) ... [2021-11-23 03:56:03,959 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661b.c [2021-11-23 03:56:03,965 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:56:03,966 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:56:04,049 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:56:04,077 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 [2021-11-23 03:56:04,077 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:56:04,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 68 states have (on average 1.7058823529411764) internal successors, (116), 69 states have internal predecessors, (116), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:56:04,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 03:56:04,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:56:04,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:56:04,118 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:56:04,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:56:04,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1597020421, now seen corresponding path program 1 times [2021-11-23 03:56:04,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:56:04,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900286536] [2021-11-23 03:56:04,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:56:04,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:56:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:56:04,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:56:04,336 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:56:04,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900286536] [2021-11-23 03:56:04,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900286536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:56:04,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:56:04,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:56:04,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830395611] [2021-11-23 03:56:04,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:56:04,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:56:04,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:56:04,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:56:04,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:56:04,392 INFO L87 Difference]: Start difference. First operand has 76 states, 68 states have (on average 1.7058823529411764) internal successors, (116), 69 states have internal predecessors, (116), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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) [2021-11-23 03:56:04,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:56:04,482 INFO L93 Difference]: Finished difference Result 150 states and 249 transitions. [2021-11-23 03:56:04,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:56:04,484 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 [2021-11-23 03:56:04,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:56:04,494 INFO L225 Difference]: With dead ends: 150 [2021-11-23 03:56:04,495 INFO L226 Difference]: Without dead ends: 73 [2021-11-23 03:56:04,500 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 [2021-11-23 03:56:04,507 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:56:04,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:56:04,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-23 03:56:04,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-11-23 03:56:04,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 66 states have internal predecessors, (93), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:56:04,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2021-11-23 03:56:04,568 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 11 [2021-11-23 03:56:04,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:56:04,569 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2021-11-23 03:56:04,569 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) [2021-11-23 03:56:04,569 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2021-11-23 03:56:04,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 03:56:04,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:56:04,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:56:04,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:56:04,571 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:56:04,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:56:04,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1982383716, now seen corresponding path program 1 times [2021-11-23 03:56:04,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:56:04,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099879811] [2021-11-23 03:56:04,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:56:04,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:56:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:56:04,640 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 03:56:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:56:04,757 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 03:56:04,757 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 03:56:04,759 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 03:56:04,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:56:04,767 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 03:56:04,770 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:56:04,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:56:04 BoogieIcfgContainer [2021-11-23 03:56:04,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:56:04,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:56:04,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:56:04,827 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:56:04,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:03" (3/4) ... [2021-11-23 03:56:04,830 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 03:56:04,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:56:04,832 INFO L158 Benchmark]: Toolchain (without parser) took 2210.32ms. Allocated memory is still 127.9MB. Free memory was 96.9MB in the beginning and 71.1MB in the end (delta: 25.8MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2021-11-23 03:56:04,832 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 94.4MB. Free memory is still 54.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:56:04,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.28ms. Allocated memory is still 127.9MB. Free memory was 96.6MB in the beginning and 99.0MB in the end (delta: -2.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 03:56:04,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.33ms. Allocated memory is still 127.9MB. Free memory was 99.0MB in the beginning and 96.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:56:04,834 INFO L158 Benchmark]: Boogie Preprocessor took 58.43ms. Allocated memory is still 127.9MB. Free memory was 96.6MB in the beginning and 94.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 03:56:04,835 INFO L158 Benchmark]: RCFGBuilder took 791.49ms. Allocated memory is still 127.9MB. Free memory was 94.1MB in the beginning and 67.7MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-23 03:56:04,836 INFO L158 Benchmark]: TraceAbstraction took 876.08ms. Allocated memory is still 127.9MB. Free memory was 67.2MB in the beginning and 71.1MB in the end (delta: -3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:56:04,836 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 127.9MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:56:04,839 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 94.4MB. Free memory is still 54.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.28ms. Allocated memory is still 127.9MB. Free memory was 96.6MB in the beginning and 99.0MB in the end (delta: -2.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.33ms. Allocated memory is still 127.9MB. Free memory was 99.0MB in the beginning and 96.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.43ms. Allocated memory is still 127.9MB. Free memory was 96.6MB in the beginning and 94.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 791.49ms. Allocated memory is still 127.9MB. Free memory was 94.1MB in the beginning and 67.7MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 876.08ms. Allocated memory is still 127.9MB. Free memory was 67.2MB in the beginning and 71.1MB in the end (delta: -3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 127.9MB. Free memory is still 71.1MB. 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: 273]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 272. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L266] double x = __VERIFIER_nondet_double(); [L267] double y = 0.0; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, y=0, zero_atan2=0] [L269] COND TRUE x > 0.0 [L270] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=0, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=0, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=0, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=0, zero_atan2=0] [L270] RET, EXPR __ieee754_atan2(y, x) [L270] double res = __ieee754_atan2(y, x); [L272] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, res == 0.0 && __signbit_double(res) == 0=0, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=0, zero_atan2=0] [L272] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L273] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=0, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.0s 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, 91 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=76occurred 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, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-11-23 03:56:04,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0661b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V --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 5b54c6a24c7834c05e2221d759ec8f9e3812bd18d8b6db36bcc9d2c0f76c5ecf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:56:07,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:56:07,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:56:07,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:56:07,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:56:07,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:56:07,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:56:07,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:56:07,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:56:07,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:56:07,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:56:07,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:56:07,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:56:07,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:56:07,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:56:07,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:56:07,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:56:07,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:56:07,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:56:07,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:56:07,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:56:07,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:56:07,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:56:07,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:56:07,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:56:07,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:56:07,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:56:07,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:56:07,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:56:07,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:56:07,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:56:07,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:56:07,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:56:07,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:56:07,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:56:07,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:56:07,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:56:07,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:56:07,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:56:07,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:56:07,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:56:07,496 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 03:56:07,543 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:56:07,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:56:07,545 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:56:07,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:56:07,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:56:07,546 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:56:07,546 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:56:07,547 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:56:07,547 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:56:07,547 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:56:07,548 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:56:07,548 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:56:07,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:56:07,550 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:56:07,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:56:07,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:56:07,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:56:07,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:56:07,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:56:07,551 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 03:56:07,552 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 03:56:07,552 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 03:56:07,552 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:56:07,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:56:07,553 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:56:07,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:56:07,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:56:07,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 03:56:07,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:56:07,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:56:07,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:56:07,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:56:07,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:56:07,555 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 03:56:07,555 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 03:56:07,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:56:07,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:56:07,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:56:07,556 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_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b54c6a24c7834c05e2221d759ec8f9e3812bd18d8b6db36bcc9d2c0f76c5ecf [2021-11-23 03:56:07,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:56:07,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:56:07,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:56:07,963 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:56:07,964 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:56:07,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/double_req_bl_0661b.c [2021-11-23 03:56:08,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/data/6697dec5b/7b242ec1a3154076aaec9138a670e3d1/FLAG681405df3 [2021-11-23 03:56:08,590 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:56:08,591 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/sv-benchmarks/c/float-newlib/double_req_bl_0661b.c [2021-11-23 03:56:08,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/data/6697dec5b/7b242ec1a3154076aaec9138a670e3d1/FLAG681405df3 [2021-11-23 03:56:08,921 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/data/6697dec5b/7b242ec1a3154076aaec9138a670e3d1 [2021-11-23 03:56:08,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:56:08,925 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:56:08,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:56:08,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:56:08,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:56:08,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:08" (1/1) ... [2021-11-23 03:56:08,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4627eaa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:08, skipping insertion in model container [2021-11-23 03:56:08,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:08" (1/1) ... [2021-11-23 03:56:08,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:56:08,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:56:09,228 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_ce3127fc-a9b6-460a-b663-77e2baae02fe/sv-benchmarks/c/float-newlib/double_req_bl_0661b.c[6444,6457] [2021-11-23 03:56:09,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:56:09,244 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:56:09,301 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_ce3127fc-a9b6-460a-b663-77e2baae02fe/sv-benchmarks/c/float-newlib/double_req_bl_0661b.c[6444,6457] [2021-11-23 03:56:09,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:56:09,325 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:56:09,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:09 WrapperNode [2021-11-23 03:56:09,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:56:09,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:56:09,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:56:09,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:56:09,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:09" (1/1) ... [2021-11-23 03:56:09,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:09" (1/1) ... [2021-11-23 03:56:09,383 INFO L137 Inliner]: procedures = 23, calls = 92, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 251 [2021-11-23 03:56:09,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:56:09,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:56:09,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:56:09,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:56:09,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:09" (1/1) ... [2021-11-23 03:56:09,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:09" (1/1) ... [2021-11-23 03:56:09,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:09" (1/1) ... [2021-11-23 03:56:09,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:09" (1/1) ... [2021-11-23 03:56:09,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:09" (1/1) ... [2021-11-23 03:56:09,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:09" (1/1) ... [2021-11-23 03:56:09,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:09" (1/1) ... [2021-11-23 03:56:09,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:56:09,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:56:09,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:56:09,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:56:09,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:09" (1/1) ... [2021-11-23 03:56:09,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:56:09,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:56:09,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:56:09,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:56:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:56:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-23 03:56:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-23 03:56:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 03:56:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:56:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-23 03:56:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-23 03:56:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-23 03:56:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-23 03:56:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-23 03:56:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 03:56:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:56:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:56:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 03:56:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:56:09,650 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:56:09,652 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:56:30,376 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:56:30,383 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:56:30,386 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-23 03:56:30,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:30 BoogieIcfgContainer [2021-11-23 03:56:30,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:56:30,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:56:30,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:56:30,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:56:30,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:56:08" (1/3) ... [2021-11-23 03:56:30,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e27d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:56:30, skipping insertion in model container [2021-11-23 03:56:30,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:09" (2/3) ... [2021-11-23 03:56:30,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e27d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:56:30, skipping insertion in model container [2021-11-23 03:56:30,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:30" (3/3) ... [2021-11-23 03:56:30,400 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0661b.c [2021-11-23 03:56:30,406 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:56:30,407 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:56:30,457 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:56:30,464 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 [2021-11-23 03:56:30,465 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:56:30,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 91 states have (on average 1.6593406593406594) internal successors, (151), 92 states have internal predecessors, (151), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:56:30,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 03:56:30,489 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:56:30,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:56:30,490 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:56:30,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:56:30,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1101750833, now seen corresponding path program 1 times [2021-11-23 03:56:30,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:56:30,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103547674] [2021-11-23 03:56:30,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:56:30,510 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:56:30,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:56:30,522 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:56:30,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 03:56:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:56:30,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 03:56:30,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:56:31,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:56:31,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:56:31,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:56:31,357 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 03:56:31,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103547674] [2021-11-23 03:56:31,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103547674] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 03:56:31,358 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:56:31,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 03:56:31,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948749700] [2021-11-23 03:56:31,361 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 03:56:31,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:56:31,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 03:56:31,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:56:31,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:56:31,399 INFO L87 Difference]: Start difference. First operand has 99 states, 91 states have (on average 1.6593406593406594) internal successors, (151), 92 states have internal predecessors, (151), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2021-11-23 03:56:31,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:56:31,457 INFO L93 Difference]: Finished difference Result 195 states and 318 transitions. [2021-11-23 03:56:31,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:56:31,460 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 [2021-11-23 03:56:31,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:56:31,470 INFO L225 Difference]: With dead ends: 195 [2021-11-23 03:56:31,470 INFO L226 Difference]: Without dead ends: 95 [2021-11-23 03:56:31,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:56:31,497 INFO L933 BasicCegarLoop]: 140 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, 140 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 [2021-11-23 03:56:31,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:56:31,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-23 03:56:31,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-23 03:56:31,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 88 states have (on average 1.4431818181818181) internal successors, (127), 88 states have internal predecessors, (127), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:56:31,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2021-11-23 03:56:31,540 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 135 transitions. Word has length 12 [2021-11-23 03:56:31,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:56:31,540 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-11-23 03:56:31,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2021-11-23 03:56:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 135 transitions. [2021-11-23 03:56:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 03:56:31,542 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:56:31,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:56:31,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:56:31,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 03:56:31,757 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:56:31,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:56:31,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1195087928, now seen corresponding path program 1 times [2021-11-23 03:56:31,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 03:56:31,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470095864] [2021-11-23 03:56:31,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:56:31,760 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 03:56:31,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 03:56:31,761 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 03:56:31,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce3127fc-a9b6-460a-b663-77e2baae02fe/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 03:56:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:56:32,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 03:56:32,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:56:32,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 40 [2021-11-23 03:56:35,220 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:56:35,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 26 [2021-11-23 03:56:36,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:56:36,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:57:03,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70