./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.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_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/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_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/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_2401777a-6e5d-4c49-907a-48af972c80e8/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 6904bf6d43d7b400ac9a6f6c8ecd92ebae2bb440 ................................................................................................................................................................................................................................................. 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_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/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_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/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_2401777a-6e5d-4c49-907a-48af972c80e8/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 6904bf6d43d7b400ac9a6f6c8ecd92ebae2bb440 ...................................................................................................................................................................................................................................................................................................... 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 02:29:24,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:24,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:24,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:24,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:24,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:24,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:24,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:24,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:24,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:24,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:24,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:24,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:24,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:24,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:24,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:24,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:24,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:24,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:24,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:24,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:24,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:24,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:24,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:24,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:24,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:24,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:24,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:24,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:24,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:24,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:24,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:24,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:24,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:24,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:24,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:24,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:24,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:24,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:24,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:24,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:24,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:29:24,452 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:24,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:24,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:24,455 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:24,456 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:24,456 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:24,456 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:29:24,456 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:24,463 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:24,463 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:29:24,468 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:29:24,468 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:24,469 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:29:24,469 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:29:24,469 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:29:24,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:24,470 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:24,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:29:24,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:24,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:24,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:24,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:24,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:24,472 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:24,472 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:24,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:24,473 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:24,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:24,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:24,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:24,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:24,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:24,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:24,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:24,477 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:29:24,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:29:24,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:24,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:24,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:24,478 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_2401777a-6e5d-4c49-907a-48af972c80e8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6904bf6d43d7b400ac9a6f6c8ecd92ebae2bb440 [2021-10-11 02:29:24,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:24,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:24,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:24,844 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:24,846 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:24,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2021-10-11 02:29:24,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/data/45655bc31/1fbe7049f99040eb9b20e9d0be0f0f40/FLAGf5f30385a [2021-10-11 02:29:25,458 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:25,459 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2021-10-11 02:29:25,471 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/data/45655bc31/1fbe7049f99040eb9b20e9d0be0f0f40/FLAGf5f30385a [2021-10-11 02:29:25,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/data/45655bc31/1fbe7049f99040eb9b20e9d0be0f0f40 [2021-10-11 02:29:25,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:25,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:25,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:25,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:25,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:25,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:25" (1/1) ... [2021-10-11 02:29:25,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e6e5d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:25, skipping insertion in model container [2021-10-11 02:29:25,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:25" (1/1) ... [2021-10-11 02:29:25,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:25,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:26,040 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_2401777a-6e5d-4c49-907a-48af972c80e8/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2021-10-11 02:29:26,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:26,060 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:26,072 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_2401777a-6e5d-4c49-907a-48af972c80e8/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2021-10-11 02:29:26,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:26,090 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:26,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:26 WrapperNode [2021-10-11 02:29:26,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:26,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:26,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:26,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:26,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:26" (1/1) ... [2021-10-11 02:29:26,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:26" (1/1) ... [2021-10-11 02:29:26,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:26,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:26,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:26,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:26,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:26" (1/1) ... [2021-10-11 02:29:26,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:26" (1/1) ... [2021-10-11 02:29:26,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:26" (1/1) ... [2021-10-11 02:29:26,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:26" (1/1) ... [2021-10-11 02:29:26,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:26" (1/1) ... [2021-10-11 02:29:26,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:26" (1/1) ... [2021-10-11 02:29:26,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:26" (1/1) ... [2021-10-11 02:29:26,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:26,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:26,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:26,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:26,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:26" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/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 02:29:26,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:26,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:29:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:26,451 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:26,451 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 02:29:26,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:26 BoogieIcfgContainer [2021-10-11 02:29:26,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:26,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:26,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:26,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:26,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:25" (1/3) ... [2021-10-11 02:29:26,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223e1cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:26, skipping insertion in model container [2021-10-11 02:29:26,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:26" (2/3) ... [2021-10-11 02:29:26,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223e1cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:26, skipping insertion in model container [2021-10-11 02:29:26,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:26" (3/3) ... [2021-10-11 02:29:26,463 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2021-10-11 02:29:26,477 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:26,481 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:29:26,493 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:29:26,516 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:26,516 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:26,516 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:26,516 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:26,517 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:26,517 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:26,517 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:26,517 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:26,529 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2021-10-11 02:29:26,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:29:26,533 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:26,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:29:26,534 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:26,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:26,540 INFO L82 PathProgramCache]: Analyzing trace with hash 46290, now seen corresponding path program 1 times [2021-10-11 02:29:26,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:26,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687172699] [2021-10-11 02:29:26,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:26,685 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:26,713 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:26,737 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:29:26,738 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:29:26,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:29:26,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:26 BoogieIcfgContainer [2021-10-11 02:29:26,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:26,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:26,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:26,765 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:26,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:26" (3/4) ... [2021-10-11 02:29:26,771 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:29:26,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:26,776 INFO L168 Benchmark]: Toolchain (without parser) took 923.08 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 41.1 MB in the beginning and 43.8 MB in the end (delta: -2.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:26,778 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 77.6 MB. Free memory is still 57.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:26,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.55 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 40.9 MB in the beginning and 71.1 MB in the end (delta: -30.1 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:26,782 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.30 ms. Allocated memory is still 94.4 MB. Free memory was 71.1 MB in the beginning and 69.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:26,783 INFO L168 Benchmark]: Boogie Preprocessor took 20.72 ms. Allocated memory is still 94.4 MB. Free memory was 69.7 MB in the beginning and 68.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:26,784 INFO L168 Benchmark]: RCFGBuilder took 307.72 ms. Allocated memory is still 94.4 MB. Free memory was 68.7 MB in the beginning and 56.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:26,786 INFO L168 Benchmark]: TraceAbstraction took 306.25 ms. Allocated memory is still 94.4 MB. Free memory was 56.0 MB in the beginning and 44.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:26,787 INFO L168 Benchmark]: Witness Printer took 7.88 ms. Allocated memory is still 94.4 MB. Free memory was 44.1 MB in the beginning and 43.8 MB in the end (delta: 334.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:26,799 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 77.6 MB. Free memory is still 57.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 237.55 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 40.9 MB in the beginning and 71.1 MB in the end (delta: -30.1 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.30 ms. Allocated memory is still 94.4 MB. Free memory was 71.1 MB in the beginning and 69.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.72 ms. Allocated memory is still 94.4 MB. Free memory was 69.7 MB in the beginning and 68.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 307.72 ms. Allocated memory is still 94.4 MB. Free memory was 68.7 MB in the beginning and 56.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 306.25 ms. Allocated memory is still 94.4 MB. Free memory was 56.0 MB in the beginning and 44.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 7.88 ms. Allocated memory is still 94.4 MB. Free memory was 44.1 MB in the beginning and 43.8 MB in the end (delta: 334.0 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 someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e8f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [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 02:29:29,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:29,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:29,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:29,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:29,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:29,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:29,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:29,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:29,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:29,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:29,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:29,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:29,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:29,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:29,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:29,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:29,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:29,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:29,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:29,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:29,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:29,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:29,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:29,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:29,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:29,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:29,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:29,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:29,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:29,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:29,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:29,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:29,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:29,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:29,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:29,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:29,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:29,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:29,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:29,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:29,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:29:29,484 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:29,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:29,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:29,489 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:29,489 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:29,489 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:29,490 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:29,490 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:29,490 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:29,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:29,493 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:29,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:29,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:29,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:29,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:29,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:29,495 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:29,495 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:29:29,495 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:29:29,495 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:29,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:29,496 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:29,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:29,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:29,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:29:29,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:29,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:29,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:29,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:29,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:29,498 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:29:29,498 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:29:29,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:29,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:29,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:29,500 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_2401777a-6e5d-4c49-907a-48af972c80e8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6904bf6d43d7b400ac9a6f6c8ecd92ebae2bb440 [2021-10-11 02:29:29,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:29,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:29,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:29,890 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:29,891 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:29,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2021-10-11 02:29:29,961 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/data/d771d5577/aec0c37367fa4506975c93951611f776/FLAGe97a166c7 [2021-10-11 02:29:30,441 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:30,442 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2021-10-11 02:29:30,448 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/data/d771d5577/aec0c37367fa4506975c93951611f776/FLAGe97a166c7 [2021-10-11 02:29:30,834 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/data/d771d5577/aec0c37367fa4506975c93951611f776 [2021-10-11 02:29:30,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:30,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:30,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:30,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:30,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:30,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:30" (1/1) ... [2021-10-11 02:29:30,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6103501d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30, skipping insertion in model container [2021-10-11 02:29:30,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:30" (1/1) ... [2021-10-11 02:29:30,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:30,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:31,051 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_2401777a-6e5d-4c49-907a-48af972c80e8/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2021-10-11 02:29:31,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:31,081 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:31,100 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_2401777a-6e5d-4c49-907a-48af972c80e8/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2021-10-11 02:29:31,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:31,169 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:31,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31 WrapperNode [2021-10-11 02:29:31,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:31,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:31,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:31,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:31,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:31,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:31,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:31,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:31,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:31,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:31,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:31,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:31,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/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 02:29:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:29:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:32,122 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:32,123 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 02:29:32,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:32 BoogieIcfgContainer [2021-10-11 02:29:32,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:32,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:32,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:32,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:32,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:30" (1/3) ... [2021-10-11 02:29:32,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700969db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:32, skipping insertion in model container [2021-10-11 02:29:32,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (2/3) ... [2021-10-11 02:29:32,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700969db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:32, skipping insertion in model container [2021-10-11 02:29:32,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:32" (3/3) ... [2021-10-11 02:29:32,136 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2021-10-11 02:29:32,153 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:32,156 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:29:32,176 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:29:32,214 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:32,214 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:32,214 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:32,214 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:32,215 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:32,215 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:32,215 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:32,215 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:32,227 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:29:32,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:29:32,233 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:32,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:29:32,234 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:32,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:32,240 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-10-11 02:29:32,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:32,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027460076] [2021-10-11 02:29:32,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/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 02:29:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:32,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 02:29:32,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:32,577 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 02:29:32,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:32,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027460076] [2021-10-11 02:29:32,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:32,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:32,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883101502] [2021-10-11 02:29:32,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:32,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:32,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:32,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:32,601 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2021-10-11 02:29:32,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:32,962 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-11 02:29:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:32,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2021-10-11 02:29:32,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:32,968 INFO L225 Difference]: With dead ends: 13 [2021-10-11 02:29:32,969 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:29:32,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:32,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:29:32,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:29:32,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:29:32,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:29:32,996 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-11 02:29:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:32,996 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:29:32,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:32,996 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:29:32,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:29:33,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:29:33,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:29:33,273 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:29:33,273 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:29:33,273 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:29:33,274 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:29:33,274 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2021-10-11 02:29:33,274 INFO L258 CegarLoopResult]: At program point L17(lines 8 18) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-11 02:29:33,274 INFO L262 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2021-10-11 02:29:33,275 INFO L262 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2021-10-11 02:29:33,275 INFO L258 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-11 02:29:33,283 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:29:33,287 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:29:33,288 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:29:33,289 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:29:33,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:33 BoogieIcfgContainer [2021-10-11 02:29:33,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:33,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:33,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:33,292 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:33,292 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:32" (3/4) ... [2021-10-11 02:29:33,295 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:29:33,305 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:29:33,305 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:29:33,305 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:29:33,306 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:29:33,339 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2401777a-6e5d-4c49-907a-48af972c80e8/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:29:33,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:33,341 INFO L168 Benchmark]: Toolchain (without parser) took 2501.18 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 40.0 MB in the beginning and 55.8 MB in the end (delta: -15.8 MB). Peak memory consumption was 702.0 kB. Max. memory is 16.1 GB. [2021-10-11 02:29:33,342 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 60.8 MB. Free memory was 42.3 MB in the beginning and 42.2 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:33,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.42 ms. Allocated memory is still 60.8 MB. Free memory was 39.9 MB in the beginning and 44.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:33,343 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.43 ms. Allocated memory is still 60.8 MB. Free memory was 44.7 MB in the beginning and 43.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:33,344 INFO L168 Benchmark]: Boogie Preprocessor took 51.06 ms. Allocated memory is still 60.8 MB. Free memory was 43.4 MB in the beginning and 42.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:33,345 INFO L168 Benchmark]: RCFGBuilder took 862.06 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 31.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:33,345 INFO L168 Benchmark]: TraceAbstraction took 1162.01 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 31.1 MB in the beginning and 58.5 MB in the end (delta: -27.4 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:33,346 INFO L168 Benchmark]: Witness Printer took 48.08 ms. Allocated memory is still 77.6 MB. Free memory was 57.9 MB in the beginning and 55.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:33,349 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 60.8 MB. Free memory was 42.3 MB in the beginning and 42.2 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 326.42 ms. Allocated memory is still 60.8 MB. Free memory was 39.9 MB in the beginning and 44.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.43 ms. Allocated memory is still 60.8 MB. Free memory was 44.7 MB in the beginning and 43.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.06 ms. Allocated memory is still 60.8 MB. Free memory was 43.4 MB in the beginning and 42.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 862.06 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 31.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1162.01 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 31.1 MB in the beginning and 58.5 MB in the end (delta: -27.4 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Witness Printer took 48.08 ms. Allocated memory is still 77.6 MB. Free memory was 57.9 MB in the beginning and 55.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 [2021-10-11 02:29:33,358 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:29:33,358 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 6]: Loop Invariant [2021-10-11 02:29:33,359 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:29:33,359 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 9 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 6 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 8 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! Received shutdown request...