./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0310.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0310.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl --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 27cdb204cc37e8b1ae4c916f9eff82775b2980de5d97e2135b8c15849e257cda --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:03:16,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:03:16,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:03:16,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:03:16,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:03:16,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:03:16,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:03:16,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:03:16,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:03:16,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:03:16,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:03:16,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:03:16,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:03:16,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:03:16,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:03:16,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:03:16,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:03:16,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:03:16,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:03:16,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:03:16,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:03:16,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:03:16,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:03:16,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:03:16,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:03:16,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:03:16,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:03:16,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:03:16,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:03:16,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:03:16,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:03:16,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:03:16,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:03:16,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:03:16,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:03:16,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:03:16,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:03:16,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:03:16,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:03:16,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:03:16,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:03:16,257 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:03:16,319 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:03:16,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:03:16,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:03:16,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:03:16,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:03:16,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:03:16,324 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:03:16,325 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:03:16,325 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:03:16,325 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:03:16,327 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:03:16,327 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:03:16,327 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:03:16,328 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:03:16,328 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:03:16,328 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:03:16,329 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:03:16,329 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:03:16,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:03:16,330 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:03:16,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:03:16,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:03:16,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:03:16,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:03:16,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:03:16,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:03:16,335 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:03:16,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:03:16,335 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:03:16,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:03:16,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:03:16,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:03:16,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:03:16,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:03:16,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:03:16,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:03:16,338 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:03:16,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:03:16,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:03:16,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:03:16,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:03:16,339 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_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27cdb204cc37e8b1ae4c916f9eff82775b2980de5d97e2135b8c15849e257cda [2021-11-23 17:03:16,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:03:16,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:03:16,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:03:16,791 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:03:16,792 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:03:16,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/float-newlib/float_req_bl_0310.c [2021-11-23 17:03:16,866 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/data/321aa8439/00a783f8059e476886f58bae5679f62d/FLAG0f1e3c3d9 [2021-11-23 17:03:17,582 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:03:17,583 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/sv-benchmarks/c/float-newlib/float_req_bl_0310.c [2021-11-23 17:03:17,610 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/data/321aa8439/00a783f8059e476886f58bae5679f62d/FLAG0f1e3c3d9 [2021-11-23 17:03:17,869 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/data/321aa8439/00a783f8059e476886f58bae5679f62d [2021-11-23 17:03:17,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:03:17,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:03:17,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:03:17,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:03:17,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:03:17,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:03:17" (1/1) ... [2021-11-23 17:03:17,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5626ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:17, skipping insertion in model container [2021-11-23 17:03:17,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:03:17" (1/1) ... [2021-11-23 17:03:17,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:03:17,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:03:18,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/sv-benchmarks/c/float-newlib/float_req_bl_0310.c[15490,15503] [2021-11-23 17:03:18,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:03:18,530 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:03:18,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/sv-benchmarks/c/float-newlib/float_req_bl_0310.c[15490,15503] [2021-11-23 17:03:18,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:03:18,710 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:03:18,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:18 WrapperNode [2021-11-23 17:03:18,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:03:18,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:03:18,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:03:18,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:03:18,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:18" (1/1) ... [2021-11-23 17:03:18,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:18" (1/1) ... [2021-11-23 17:03:18,866 INFO L137 Inliner]: procedures = 26, calls = 491, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1124 [2021-11-23 17:03:18,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:03:18,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:03:18,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:03:18,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:03:18,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:18" (1/1) ... [2021-11-23 17:03:18,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:18" (1/1) ... [2021-11-23 17:03:18,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:18" (1/1) ... [2021-11-23 17:03:18,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:18" (1/1) ... [2021-11-23 17:03:18,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:18" (1/1) ... [2021-11-23 17:03:18,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:18" (1/1) ... [2021-11-23 17:03:19,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:18" (1/1) ... [2021-11-23 17:03:19,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:03:19,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:03:19,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:03:19,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:03:19,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:18" (1/1) ... [2021-11-23 17:03:19,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:03:19,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:03:19,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:03:19,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:03:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2021-11-23 17:03:19,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2021-11-23 17:03:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:03:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:03:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 17:03:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:03:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 17:03:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2021-11-23 17:03:19,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2021-11-23 17:03:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2021-11-23 17:03:19,131 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2021-11-23 17:03:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:03:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-23 17:03:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-11-23 17:03:19,132 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-11-23 17:03:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:03:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:03:19,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:03:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:03:19,442 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:03:19,445 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:03:20,669 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:03:20,719 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:03:20,724 INFO L158 Benchmark]: Toolchain (without parser) took 2849.08ms. Allocated memory was 79.7MB in the beginning and 115.3MB in the end (delta: 35.7MB). Free memory was 41.5MB in the beginning and 76.4MB in the end (delta: -34.9MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. [2021-11-23 17:03:20,725 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:03:20,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 823.97ms. Allocated memory was 79.7MB in the beginning and 115.3MB in the end (delta: 35.7MB). Free memory was 41.3MB in the beginning and 72.1MB in the end (delta: -30.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:03:20,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 154.46ms. Allocated memory is still 115.3MB. Free memory was 72.1MB in the beginning and 64.8MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:03:20,728 INFO L158 Benchmark]: Boogie Preprocessor took 154.82ms. Allocated memory is still 115.3MB. Free memory was 64.8MB in the beginning and 58.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:03:20,729 INFO L158 Benchmark]: RCFGBuilder took 1698.28ms. Allocated memory is still 115.3MB. Free memory was 58.4MB in the beginning and 76.4MB in the end (delta: -18.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-11-23 17:03:20,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 823.97ms. Allocated memory was 79.7MB in the beginning and 115.3MB in the end (delta: 35.7MB). Free memory was 41.3MB in the beginning and 72.1MB in the end (delta: -30.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 154.46ms. Allocated memory is still 115.3MB. Free memory was 72.1MB in the beginning and 64.8MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 154.82ms. Allocated memory is still 115.3MB. Free memory was 64.8MB in the beginning and 58.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1698.28ms. Allocated memory is still 115.3MB. Free memory was 58.4MB in the beginning and 76.4MB in the end (delta: -18.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:03:20,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0310.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl --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 27cdb204cc37e8b1ae4c916f9eff82775b2980de5d97e2135b8c15849e257cda --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:03:23,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:03:23,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:03:23,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:03:23,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:03:23,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:03:23,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:03:23,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:03:23,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:03:23,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:03:23,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:03:23,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:03:23,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:03:23,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:03:23,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:03:23,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:03:23,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:03:23,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:03:23,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:03:23,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:03:23,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:03:23,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:03:23,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:03:23,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:03:23,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:03:23,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:03:23,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:03:23,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:03:23,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:03:23,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:03:23,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:03:23,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:03:23,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:03:23,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:03:23,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:03:23,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:03:23,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:03:23,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:03:23,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:03:23,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:03:23,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:03:23,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:03:23,712 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:03:23,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:03:23,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:03:23,713 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:03:23,714 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:03:23,714 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:03:23,714 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:03:23,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:03:23,715 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:03:23,715 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:03:23,715 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:03:23,715 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:03:23,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:03:23,716 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:03:23,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:03:23,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:03:23,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:03:23,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:03:23,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:03:23,718 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:03:23,718 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:03:23,718 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:03:23,718 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:03:23,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:03:23,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:03:23,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:03:23,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:03:23,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:03:23,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:03:23,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:03:23,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:03:23,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:03:23,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:03:23,721 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:03:23,721 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:03:23,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:03:23,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:03:23,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:03:23,722 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_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27cdb204cc37e8b1ae4c916f9eff82775b2980de5d97e2135b8c15849e257cda [2021-11-23 17:03:24,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:03:24,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:03:24,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:03:24,268 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:03:24,270 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:03:24,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/float-newlib/float_req_bl_0310.c [2021-11-23 17:03:24,360 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/data/3cb158006/9badf88428d24e64a345b097eeab2638/FLAG92e68f079 [2021-11-23 17:03:25,141 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:03:25,143 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/sv-benchmarks/c/float-newlib/float_req_bl_0310.c [2021-11-23 17:03:25,165 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/data/3cb158006/9badf88428d24e64a345b097eeab2638/FLAG92e68f079 [2021-11-23 17:03:25,381 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/data/3cb158006/9badf88428d24e64a345b097eeab2638 [2021-11-23 17:03:25,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:03:25,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:03:25,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:03:25,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:03:25,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:03:25,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:03:25" (1/1) ... [2021-11-23 17:03:25,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48fe24e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:25, skipping insertion in model container [2021-11-23 17:03:25,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:03:25" (1/1) ... [2021-11-23 17:03:25,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:03:25,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:03:25,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/sv-benchmarks/c/float-newlib/float_req_bl_0310.c[15490,15503] [2021-11-23 17:03:25,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:03:25,962 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:03:26,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/sv-benchmarks/c/float-newlib/float_req_bl_0310.c[15490,15503] [2021-11-23 17:03:26,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:03:26,204 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:03:26,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:26 WrapperNode [2021-11-23 17:03:26,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:03:26,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:03:26,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:03:26,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:03:26,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:26" (1/1) ... [2021-11-23 17:03:26,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:26" (1/1) ... [2021-11-23 17:03:26,383 INFO L137 Inliner]: procedures = 30, calls = 491, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1122 [2021-11-23 17:03:26,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:03:26,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:03:26,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:03:26,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:03:26,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:26" (1/1) ... [2021-11-23 17:03:26,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:26" (1/1) ... [2021-11-23 17:03:26,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:26" (1/1) ... [2021-11-23 17:03:26,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:26" (1/1) ... [2021-11-23 17:03:26,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:26" (1/1) ... [2021-11-23 17:03:26,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:26" (1/1) ... [2021-11-23 17:03:26,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:26" (1/1) ... [2021-11-23 17:03:26,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:03:26,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:03:26,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:03:26,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:03:26,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:26" (1/1) ... [2021-11-23 17:03:26,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:03:26,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:03:26,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:03:26,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:03:26,679 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2021-11-23 17:03:26,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2021-11-23 17:03:26,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:03:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:03:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 17:03:26,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:03:26,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-23 17:03:26,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:03:26,681 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2021-11-23 17:03:26,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2021-11-23 17:03:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2021-11-23 17:03:26,682 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2021-11-23 17:03:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-23 17:03:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-11-23 17:03:26,682 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-11-23 17:03:26,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-23 17:03:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:03:26,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:03:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:03:26,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:03:26,942 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:03:26,944 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:04:05,315 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:04:05,328 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:04:05,329 INFO L301 CfgBuilder]: Removed 59 assume(true) statements. [2021-11-23 17:04:05,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:04:05 BoogieIcfgContainer [2021-11-23 17:04:05,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:04:05,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:04:05,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:04:05,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:04:05,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:03:25" (1/3) ... [2021-11-23 17:04:05,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414be5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:04:05, skipping insertion in model container [2021-11-23 17:04:05,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:03:26" (2/3) ... [2021-11-23 17:04:05,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414be5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:04:05, skipping insertion in model container [2021-11-23 17:04:05,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:04:05" (3/3) ... [2021-11-23 17:04:05,341 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0310.c [2021-11-23 17:04:05,347 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:04:05,348 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:04:05,426 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:04:05,444 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 17:04:05,444 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:04:05,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 227 states have (on average 1.6607929515418502) internal successors, (377), 228 states have internal predecessors, (377), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-23 17:04:05,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 17:04:05,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:04:05,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:04:05,488 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:04:05,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:04:05,495 INFO L85 PathProgramCache]: Analyzing trace with hash -709379349, now seen corresponding path program 1 times [2021-11-23 17:04:05,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:04:05,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121062293] [2021-11-23 17:04:05,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:04:05,516 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:04:05,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:04:05,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:04:05,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:04:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:04:07,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 17:04:07,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:04:07,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:04:07,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:04:07,353 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:04:07,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121062293] [2021-11-23 17:04:07,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121062293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:04:07,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:04:07,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:04:07,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643724286] [2021-11-23 17:04:07,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:04:07,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 17:04:07,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:04:07,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 17:04:07,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:04:07,401 INFO L87 Difference]: Start difference. First operand has 245 states, 227 states have (on average 1.6607929515418502) internal successors, (377), 228 states have internal predecessors, (377), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:04:07,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:04:07,481 INFO L93 Difference]: Finished difference Result 488 states and 812 transitions. [2021-11-23 17:04:07,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 17:04:07,484 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 17:04:07,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:04:07,499 INFO L225 Difference]: With dead ends: 488 [2021-11-23 17:04:07,499 INFO L226 Difference]: Without dead ends: 242 [2021-11-23 17:04:07,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:04:07,513 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:04:07,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 17:04:07,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-23 17:04:07,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-11-23 17:04:07,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 225 states have (on average 1.3955555555555557) internal successors, (314), 225 states have internal predecessors, (314), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-23 17:04:07,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 338 transitions. [2021-11-23 17:04:07,596 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 338 transitions. Word has length 10 [2021-11-23 17:04:07,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:04:07,596 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 338 transitions. [2021-11-23 17:04:07,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:04:07,597 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 338 transitions. [2021-11-23 17:04:07,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 17:04:07,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:04:07,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:04:07,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 17:04:07,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:04:07,815 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:04:07,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:04:07,816 INFO L85 PathProgramCache]: Analyzing trace with hash 759304673, now seen corresponding path program 1 times [2021-11-23 17:04:07,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:04:07,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785583834] [2021-11-23 17:04:07,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:04:07,819 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:04:07,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:04:07,835 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:04:07,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:04:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:04:09,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 17:04:09,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:04:10,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:04:10,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:04:10,014 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:04:10,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785583834] [2021-11-23 17:04:10,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785583834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:04:10,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:04:10,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 17:04:10,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438119717] [2021-11-23 17:04:10,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:04:10,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 17:04:10,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:04:10,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 17:04:10,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 17:04:10,019 INFO L87 Difference]: Start difference. First operand 242 states and 338 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:04:12,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:04:15,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:04:17,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 17:04:20,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 17:04:20,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 17:04:20,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-23 17:04:20,621 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 71 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:04:20,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 142 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2021-11-23 17:04:20,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 17:04:20,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:04:20,827 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructOldVarsAssignment(OldVarsAssignmentCache.java:125) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getOldVarsAssignment(OldVarsAssignmentCache.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:387) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkReturn(IncrementalHoareTripleChecker.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkReturn(ChainingHoareTripleChecker.java:486) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkReturn(ChainingHoareTripleChecker.java:128) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkReturn(CachingHoareTripleChecker.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$ReturnSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:442) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:73) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.returnSuccessors(AbstractInterpolantAutomaton.java:279) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.returnSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.returnSuccessors(TotalizeNwa.java:308) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.returnSuccessors(ComplementDeterministicNwa.java:142) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.returnSuccessors(ProductNwa.java:284) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.returnSuccessorsGivenHier(ProductNwa.java:308) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addReturnsAndSuccessors(NestedWordAutomatonReachableStates.java:1118) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:950) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:868) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:04:20,844 INFO L158 Benchmark]: Toolchain (without parser) took 55456.40ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 54.1MB in the beginning and 80.7MB in the end (delta: -26.6MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2021-11-23 17:04:20,844 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 73.4MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:04:20,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 817.41ms. Allocated memory is still 73.4MB. Free memory was 53.9MB in the beginning and 34.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 17:04:20,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 176.24ms. Allocated memory is still 73.4MB. Free memory was 34.1MB in the beginning and 49.7MB in the end (delta: -15.6MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2021-11-23 17:04:20,849 INFO L158 Benchmark]: Boogie Preprocessor took 187.93ms. Allocated memory is still 73.4MB. Free memory was 49.7MB in the beginning and 42.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:04:20,850 INFO L158 Benchmark]: RCFGBuilder took 38759.59ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 42.3MB in the beginning and 62.2MB in the end (delta: -19.9MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2021-11-23 17:04:20,857 INFO L158 Benchmark]: TraceAbstraction took 15508.37ms. Allocated memory is still 109.1MB. Free memory was 61.6MB in the beginning and 80.7MB in the end (delta: -19.1MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2021-11-23 17:04:20,861 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 73.4MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 817.41ms. Allocated memory is still 73.4MB. Free memory was 53.9MB in the beginning and 34.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 176.24ms. Allocated memory is still 73.4MB. Free memory was 34.1MB in the beginning and 49.7MB in the end (delta: -15.6MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 187.93ms. Allocated memory is still 73.4MB. Free memory was 49.7MB in the beginning and 42.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 38759.59ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 42.3MB in the beginning and 62.2MB in the end (delta: -19.9MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. * TraceAbstraction took 15508.37ms. Allocated memory is still 109.1MB. Free memory was 61.6MB in the beginning and 80.7MB in the end (delta: -19.1MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:04:21,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7687e5-38a6-439c-b7b1-80d6c17474cf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable