./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/Rump_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/Rump_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI --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 4307611f131e0de710b212b3a12701bf382df8c7 ................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/Rump_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI --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 4307611f131e0de710b212b3a12701bf382df8c7 ....................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:27:04,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:04,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:04,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:04,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:04,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:04,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:04,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:04,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:04,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:04,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:04,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:04,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:04,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:04,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:04,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:04,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:04,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:04,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:04,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:04,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:04,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:04,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:04,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:04,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:04,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:04,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:04,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:04,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:04,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:04,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:04,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:04,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:04,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:04,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:04,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:04,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:04,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:04,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:04,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:04,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:04,410 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:27:04,452 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:04,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:04,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:04,454 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:04,455 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:04,455 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:04,455 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:27:04,455 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:04,456 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:04,456 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:27:04,457 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:27:04,458 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:04,458 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:27:04,458 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:27:04,458 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:27:04,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:04,460 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:04,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:27:04,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:04,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:04,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:04,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:04,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:04,461 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:04,462 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:04,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:04,462 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:04,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:04,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:04,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:04,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:04,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:04,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:04,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:04,466 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:27:04,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:27:04,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:04,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:04,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:04,468 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_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4307611f131e0de710b212b3a12701bf382df8c7 [2021-10-11 02:27:04,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:04,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:04,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:04,804 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:04,805 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:04,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-benchs/Rump_double.c [2021-10-11 02:27:04,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/data/92ebcbc27/9ea37f50de4b4091a0a69180553613e7/FLAG1608553c7 [2021-10-11 02:27:05,311 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:05,312 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/sv-benchmarks/c/float-benchs/Rump_double.c [2021-10-11 02:27:05,318 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/data/92ebcbc27/9ea37f50de4b4091a0a69180553613e7/FLAG1608553c7 [2021-10-11 02:27:05,727 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/data/92ebcbc27/9ea37f50de4b4091a0a69180553613e7 [2021-10-11 02:27:05,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:05,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:05,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:05,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:05,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:05,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:05,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19856239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05, skipping insertion in model container [2021-10-11 02:27:05,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:05,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:05,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:05,918 WARN L226 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_94d33d78-49a5-4763-a7e9-16877b88ca36/sv-benchmarks/c/float-benchs/Rump_double.c[339,352] [2021-10-11 02:27:05,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:05,948 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:05,964 WARN L226 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_94d33d78-49a5-4763-a7e9-16877b88ca36/sv-benchmarks/c/float-benchs/Rump_double.c[339,352] [2021-10-11 02:27:05,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:05,983 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:05,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05 WrapperNode [2021-10-11 02:27:05,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:05,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:05,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:05,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:05,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:06,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:06,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:06,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:06,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:06,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:06,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:06,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:06,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:06,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:06,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:06,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:06,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:06,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:06,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:06,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:06,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:06,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:06,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:27:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:06,424 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:06,425 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 02:27:06,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:06 BoogieIcfgContainer [2021-10-11 02:27:06,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:06,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:06,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:06,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:06,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:05" (1/3) ... [2021-10-11 02:27:06,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e30ae21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:06, skipping insertion in model container [2021-10-11 02:27:06,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (2/3) ... [2021-10-11 02:27:06,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e30ae21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:06, skipping insertion in model container [2021-10-11 02:27:06,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:06" (3/3) ... [2021-10-11 02:27:06,436 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_double.c [2021-10-11 02:27:06,456 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:06,459 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:27:06,470 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:27:06,493 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:06,493 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:27:06,494 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:06,494 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:06,494 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:06,494 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:06,494 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:06,495 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:06,507 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2021-10-11 02:27:06,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:27:06,517 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:06,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:27:06,518 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:06,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:06,524 INFO L82 PathProgramCache]: Analyzing trace with hash 46290, now seen corresponding path program 1 times [2021-10-11 02:27:06,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:06,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56179917] [2021-10-11 02:27:06,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:06,686 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:06,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:06,722 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:27:06,722 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:27:06,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:27:06,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:06 BoogieIcfgContainer [2021-10-11 02:27:06,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:06,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:06,752 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:06,752 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:06,752 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:06" (3/4) ... [2021-10-11 02:27:06,756 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:27:06,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:06,758 INFO L168 Benchmark]: Toolchain (without parser) took 1025.79 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 63.1 MB in the beginning and 93.6 MB in the end (delta: -30.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:06,759 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 50.0 MB in the beginning and 49.9 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:06,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.59 ms. Allocated memory is still 96.5 MB. Free memory was 62.9 MB in the beginning and 71.8 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:06,761 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.82 ms. Allocated memory is still 96.5 MB. Free memory was 71.8 MB in the beginning and 70.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:06,762 INFO L168 Benchmark]: Boogie Preprocessor took 52.50 ms. Allocated memory is still 96.5 MB. Free memory was 70.4 MB in the beginning and 69.4 MB in the end (delta: 993.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:06,763 INFO L168 Benchmark]: RCFGBuilder took 355.44 ms. Allocated memory is still 96.5 MB. Free memory was 69.4 MB in the beginning and 57.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:06,764 INFO L168 Benchmark]: TraceAbstraction took 321.53 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.9 MB in the beginning and 93.9 MB in the end (delta: -37.1 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:06,765 INFO L168 Benchmark]: Witness Printer took 4.70 ms. Allocated memory is still 117.4 MB. Free memory was 93.9 MB in the beginning and 93.6 MB in the end (delta: 314.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:06,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 50.0 MB in the beginning and 49.9 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.59 ms. Allocated memory is still 96.5 MB. Free memory was 62.9 MB in the beginning and 71.8 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.82 ms. Allocated memory is still 96.5 MB. Free memory was 71.8 MB in the beginning and 70.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.50 ms. Allocated memory is still 96.5 MB. Free memory was 70.4 MB in the beginning and 69.4 MB in the end (delta: 993.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 355.44 ms. Allocated memory is still 96.5 MB. Free memory was 69.4 MB in the beginning and 57.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 321.53 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.9 MB in the beginning and 93.9 MB in the end (delta: -37.1 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.70 ms. Allocated memory is still 117.4 MB. Free memory was 93.9 MB in the beginning and 93.6 MB in the end (delta: 314.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 13. Possible FailurePath: [L10] double x,y,r; [L11] x = 77617. [L12] y = 33096. [L13] r = 333.75 * y*y*y*y*y*y + x*x * (11.0 * x*x*y*y - y*y*y*y*y*y - 121.0 * y*y*y*y - 2.0) + 5.5 * y*y*y*y*y*y*y*y + x / (2. * y) [L6] COND TRUE !(cond) [L6] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:27:09,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:09,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:09,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:09,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:09,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:09,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:09,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:09,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:09,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:09,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:09,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:09,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:09,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:09,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:09,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:09,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:09,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:09,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:09,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:09,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:09,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:09,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:09,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:09,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:09,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:09,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:09,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:09,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:09,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:09,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:09,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:09,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:09,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:09,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:09,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:09,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:09,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:09,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:09,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:09,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:09,315 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:27:09,372 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:09,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:09,373 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:09,373 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:09,374 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:09,374 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:09,374 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:09,375 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:09,375 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:09,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:09,377 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:09,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:09,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:09,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:09,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:09,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:09,379 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:09,379 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:27:09,379 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:27:09,380 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:09,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:09,380 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:09,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:09,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:09,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:27:09,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:09,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:09,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:09,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:09,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:09,383 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:27:09,383 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:27:09,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:09,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:09,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:09,384 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_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4307611f131e0de710b212b3a12701bf382df8c7 [2021-10-11 02:27:09,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:09,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:09,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:09,851 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:09,852 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:09,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-benchs/Rump_double.c [2021-10-11 02:27:09,926 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/data/590bc1681/80c2f1890486488798075f6a21e587e4/FLAGd32d5cac2 [2021-10-11 02:27:10,356 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:10,357 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/sv-benchmarks/c/float-benchs/Rump_double.c [2021-10-11 02:27:10,362 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/data/590bc1681/80c2f1890486488798075f6a21e587e4/FLAGd32d5cac2 [2021-10-11 02:27:10,789 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/data/590bc1681/80c2f1890486488798075f6a21e587e4 [2021-10-11 02:27:10,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:10,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:10,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:10,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:10,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:10,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:10" (1/1) ... [2021-10-11 02:27:10,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28eaa9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:10, skipping insertion in model container [2021-10-11 02:27:10,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:10" (1/1) ... [2021-10-11 02:27:10,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:10,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:10,959 WARN L226 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_94d33d78-49a5-4763-a7e9-16877b88ca36/sv-benchmarks/c/float-benchs/Rump_double.c[339,352] [2021-10-11 02:27:10,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:10,991 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:11,040 WARN L226 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_94d33d78-49a5-4763-a7e9-16877b88ca36/sv-benchmarks/c/float-benchs/Rump_double.c[339,352] [2021-10-11 02:27:11,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:11,072 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:11,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:11 WrapperNode [2021-10-11 02:27:11,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:11,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:11,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:11,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:11,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:11" (1/1) ... [2021-10-11 02:27:11,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:11" (1/1) ... [2021-10-11 02:27:11,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:11,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:11,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:11,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:11,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:11" (1/1) ... [2021-10-11 02:27:11,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:11" (1/1) ... [2021-10-11 02:27:11,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:11" (1/1) ... [2021-10-11 02:27:11,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:11" (1/1) ... [2021-10-11 02:27:11,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:11" (1/1) ... [2021-10-11 02:27:11,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:11" (1/1) ... [2021-10-11 02:27:11,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:11" (1/1) ... [2021-10-11 02:27:11,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:11,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:11,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:11,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:11,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:11" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:11,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:27:11,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:17,385 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:17,385 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 02:27:17,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:17 BoogieIcfgContainer [2021-10-11 02:27:17,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:17,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:17,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:17,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:17,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:10" (1/3) ... [2021-10-11 02:27:17,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b98f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:17, skipping insertion in model container [2021-10-11 02:27:17,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:11" (2/3) ... [2021-10-11 02:27:17,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b98f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:17, skipping insertion in model container [2021-10-11 02:27:17,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:17" (3/3) ... [2021-10-11 02:27:17,397 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_double.c [2021-10-11 02:27:17,411 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:17,415 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:27:17,426 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:27:17,450 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:17,450 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:27:17,450 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:17,450 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:17,451 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:17,451 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:17,451 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:17,451 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:17,462 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:27:17,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:27:17,468 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:17,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:27:17,469 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:17,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:17,475 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-10-11 02:27:17,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:17,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227852745] [2021-10-11 02:27:17,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:25,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:27:25,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:25,832 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 5 [2021-10-11 02:27:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:25,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:25,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227852745] [2021-10-11 02:27:25,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:25,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:27:25,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467270954] [2021-10-11 02:27:25,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:27:25,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:25,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:27:25,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:27:25,863 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2021-10-11 02:27:31,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:31,908 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-11 02:27:31,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:27:31,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2021-10-11 02:27:31,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:31,917 INFO L225 Difference]: With dead ends: 13 [2021-10-11 02:27:31,917 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:27:31,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:27:31,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:27:31,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:27:31,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:27:31,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:27:31,942 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-11 02:27:31,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:31,943 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:27:31,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:27:31,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:27:31,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:27:32,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:27:32,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:27:32,304 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:27:32,304 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:27:32,304 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:27:32,304 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:27:32,304 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2021-10-11 02:27:32,305 INFO L258 CegarLoopResult]: At program point L16(lines 8 17) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2021-10-11 02:27:32,305 INFO L262 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2021-10-11 02:27:32,305 INFO L262 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2021-10-11 02:27:32,305 INFO L258 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2021-10-11 02:27:32,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:32 BoogieIcfgContainer [2021-10-11 02:27:32,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:32,328 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:32,328 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:32,329 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:32,329 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:17" (3/4) ... [2021-10-11 02:27:32,332 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:27:32,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:27:32,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:27:32,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:27:32,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:27:32,387 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d33d78-49a5-4763-a7e9-16877b88ca36/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:27:32,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:32,389 INFO L168 Benchmark]: Toolchain (without parser) took 21595.17 ms. Allocated memory is still 79.7 MB. Free memory was 63.9 MB in the beginning and 48.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:32,392 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 79.7 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:32,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.64 ms. Allocated memory is still 79.7 MB. Free memory was 63.9 MB in the beginning and 62.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:32,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.27 ms. Allocated memory is still 79.7 MB. Free memory was 62.4 MB in the beginning and 60.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:32,399 INFO L168 Benchmark]: Boogie Preprocessor took 42.77 ms. Allocated memory is still 79.7 MB. Free memory was 60.8 MB in the beginning and 59.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:32,399 INFO L168 Benchmark]: RCFGBuilder took 6207.74 ms. Allocated memory is still 79.7 MB. Free memory was 59.6 MB in the beginning and 48.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:32,400 INFO L168 Benchmark]: TraceAbstraction took 14928.60 ms. Allocated memory is still 79.7 MB. Free memory was 48.0 MB in the beginning and 50.6 MB in the end (delta: -2.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:32,401 INFO L168 Benchmark]: Witness Printer took 59.67 ms. Allocated memory is still 79.7 MB. Free memory was 50.6 MB in the beginning and 48.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:32,404 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 79.7 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 280.64 ms. Allocated memory is still 79.7 MB. Free memory was 63.9 MB in the beginning and 62.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.27 ms. Allocated memory is still 79.7 MB. Free memory was 62.4 MB in the beginning and 60.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.77 ms. Allocated memory is still 79.7 MB. Free memory was 60.8 MB in the beginning and 59.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 6207.74 ms. Allocated memory is still 79.7 MB. Free memory was 59.6 MB in the beginning and 48.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14928.60 ms. Allocated memory is still 79.7 MB. Free memory was 48.0 MB in the beginning and 50.6 MB in the end (delta: -2.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 59.67 ms. Allocated memory is still 79.7 MB. Free memory was 50.6 MB in the beginning and 48.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 4 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 7.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 5 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 7 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 proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...