./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i --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_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/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_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/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_99c7036b-5ee7-4511-95e9-4823ede718cb/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 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:00:35,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:00:35,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:00:35,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:00:35,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:00:35,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:00:35,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:00:35,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:00:35,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:00:35,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:00:35,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:00:35,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:00:35,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:00:35,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:00:35,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:00:35,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:00:35,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:00:35,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:00:35,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:00:35,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:00:35,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:00:35,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:00:35,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:00:35,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:00:35,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:00:35,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:00:35,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:00:35,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:00:35,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:00:35,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:00:35,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:00:35,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:00:35,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:00:35,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:00:35,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:00:35,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:00:35,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:00:35,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:00:35,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:00:35,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:00:35,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:00:35,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:00:35,989 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:00:35,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:00:35,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:00:35,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:00:35,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:00:35,999 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:00:36,000 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:00:36,000 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:00:36,000 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:00:36,001 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:00:36,002 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:00:36,002 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:00:36,003 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:00:36,003 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:00:36,003 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:00:36,004 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:00:36,004 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:00:36,004 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:00:36,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:00:36,006 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:00:36,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:00:36,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:00:36,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:00:36,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:00:36,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:00:36,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:00:36,010 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:00:36,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:00:36,011 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:00:36,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:00:36,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:00:36,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:00:36,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:00:36,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:00:36,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:00:36,013 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:00:36,013 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:00:36,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:00:36,014 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:00:36,014 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:00:36,015 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:00:36,015 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_99c7036b-5ee7-4511-95e9-4823ede718cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 [2021-11-23 17:00:36,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:00:36,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:00:36,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:00:36,385 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:00:36,386 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:00:36,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2021-11-23 17:00:36,502 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/data/b8d932399/d901b50886c3414589e7f23abf52c485/FLAG147dc806f [2021-11-23 17:00:37,047 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:00:37,048 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2021-11-23 17:00:37,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/data/b8d932399/d901b50886c3414589e7f23abf52c485/FLAG147dc806f [2021-11-23 17:00:37,416 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/data/b8d932399/d901b50886c3414589e7f23abf52c485 [2021-11-23 17:00:37,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:00:37,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:00:37,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:00:37,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:00:37,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:00:37,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:00:37" (1/1) ... [2021-11-23 17:00:37,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c392f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:37, skipping insertion in model container [2021-11-23 17:00:37,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:00:37" (1/1) ... [2021-11-23 17:00:37,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:00:37,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:00:37,682 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_99c7036b-5ee7-4511-95e9-4823ede718cb/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2021-11-23 17:00:37,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:00:37,696 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:00:37,719 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_99c7036b-5ee7-4511-95e9-4823ede718cb/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2021-11-23 17:00:37,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:00:37,737 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:00:37,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:37 WrapperNode [2021-11-23 17:00:37,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:00:37,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:00:37,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:00:37,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:00:37,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:37" (1/1) ... [2021-11-23 17:00:37,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:37" (1/1) ... [2021-11-23 17:00:37,796 INFO L137 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-11-23 17:00:37,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:00:37,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:00:37,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:00:37,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:00:37,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:37" (1/1) ... [2021-11-23 17:00:37,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:37" (1/1) ... [2021-11-23 17:00:37,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:37" (1/1) ... [2021-11-23 17:00:37,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:37" (1/1) ... [2021-11-23 17:00:37,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:37" (1/1) ... [2021-11-23 17:00:37,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:37" (1/1) ... [2021-11-23 17:00:37,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:37" (1/1) ... [2021-11-23 17:00:37,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:00:37,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:00:37,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:00:37,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:00:37,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:37" (1/1) ... [2021-11-23 17:00:37,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:00:37,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:00:37,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:00:37,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:00:37,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:00:37,934 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-23 17:00:37,935 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-23 17:00:37,935 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-11-23 17:00:37,935 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-11-23 17:00:37,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:00:37,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:00:37,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:00:38,000 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:00:38,002 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:00:38,116 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:00:38,139 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 17:00:38,146 INFO L158 Benchmark]: Toolchain (without parser) took 723.21ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 66.0MB in the beginning and 91.2MB in the end (delta: -25.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2021-11-23 17:00:38,147 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory was 54.6MB in the beginning and 54.6MB in the end (delta: 13.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:00:38,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.84ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 66.0MB in the beginning and 103.8MB in the end (delta: -37.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:00:38,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.09ms. Allocated memory is still 130.0MB. Free memory was 103.8MB in the beginning and 102.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:00:38,151 INFO L158 Benchmark]: Boogie Preprocessor took 42.82ms. Allocated memory is still 130.0MB. Free memory was 102.3MB in the beginning and 101.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:00:38,152 INFO L158 Benchmark]: RCFGBuilder took 300.23ms. Allocated memory is still 130.0MB. Free memory was 101.0MB in the beginning and 91.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:00:38,158 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory was 54.6MB in the beginning and 54.6MB in the end (delta: 13.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.84ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 66.0MB in the beginning and 103.8MB in the end (delta: -37.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.09ms. Allocated memory is still 130.0MB. Free memory was 103.8MB in the beginning and 102.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.82ms. Allocated memory is still 130.0MB. Free memory was 102.3MB in the beginning and 101.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 300.23ms. Allocated memory is still 130.0MB. Free memory was 101.0MB in the beginning and 91.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. 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 17:00:38,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/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_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/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_99c7036b-5ee7-4511-95e9-4823ede718cb/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 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:00:40,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:00:40,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:00:41,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:00:41,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:00:41,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:00:41,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:00:41,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:00:41,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:00:41,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:00:41,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:00:41,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:00:41,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:00:41,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:00:41,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:00:41,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:00:41,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:00:41,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:00:41,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:00:41,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:00:41,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:00:41,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:00:41,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:00:41,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:00:41,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:00:41,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:00:41,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:00:41,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:00:41,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:00:41,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:00:41,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:00:41,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:00:41,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:00:41,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:00:41,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:00:41,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:00:41,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:00:41,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:00:41,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:00:41,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:00:41,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:00:41,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:00:41,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:00:41,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:00:41,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:00:41,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:00:41,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:00:41,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:00:41,146 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:00:41,146 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:00:41,147 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:00:41,147 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:00:41,147 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:00:41,147 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:00:41,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:00:41,148 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:00:41,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:00:41,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:00:41,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:00:41,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:00:41,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:00:41,150 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:00:41,150 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:00:41,150 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:00:41,151 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:00:41,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:00:41,151 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:00:41,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:00:41,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:00:41,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:00:41,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:00:41,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:00:41,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:00:41,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:00:41,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:00:41,154 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:00:41,154 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:00:41,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:00:41,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:00:41,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:00:41,155 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_99c7036b-5ee7-4511-95e9-4823ede718cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df3dc3bb1738e955623753f7e0a37e4c32635ed29b967d6ef98d4204effab31 [2021-11-23 17:00:41,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:00:41,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:00:41,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:00:41,628 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:00:41,629 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:00:41,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2021-11-23 17:00:41,712 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/data/9911cb982/7251afd258914e6d97f7ef5291c249cb/FLAGdd1d7a99b [2021-11-23 17:00:42,366 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:00:42,368 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2021-11-23 17:00:42,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/data/9911cb982/7251afd258914e6d97f7ef5291c249cb/FLAGdd1d7a99b [2021-11-23 17:00:42,722 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/data/9911cb982/7251afd258914e6d97f7ef5291c249cb [2021-11-23 17:00:42,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:00:42,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:00:42,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:00:42,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:00:42,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:00:42,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:00:42" (1/1) ... [2021-11-23 17:00:42,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8110010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:42, skipping insertion in model container [2021-11-23 17:00:42,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:00:42" (1/1) ... [2021-11-23 17:00:42,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:00:42,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:00:43,027 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_99c7036b-5ee7-4511-95e9-4823ede718cb/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2021-11-23 17:00:43,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:00:43,043 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:00:43,064 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_99c7036b-5ee7-4511-95e9-4823ede718cb/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1764,1777] [2021-11-23 17:00:43,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:00:43,082 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:00:43,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:43 WrapperNode [2021-11-23 17:00:43,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:00:43,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:00:43,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:00:43,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:00:43,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:43" (1/1) ... [2021-11-23 17:00:43,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:43" (1/1) ... [2021-11-23 17:00:43,147 INFO L137 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-11-23 17:00:43,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:00:43,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:00:43,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:00:43,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:00:43,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:43" (1/1) ... [2021-11-23 17:00:43,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:43" (1/1) ... [2021-11-23 17:00:43,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:43" (1/1) ... [2021-11-23 17:00:43,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:43" (1/1) ... [2021-11-23 17:00:43,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:43" (1/1) ... [2021-11-23 17:00:43,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:43" (1/1) ... [2021-11-23 17:00:43,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:43" (1/1) ... [2021-11-23 17:00:43,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:00:43,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:00:43,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:00:43,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:00:43,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:43" (1/1) ... [2021-11-23 17:00:43,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:00:43,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:00:43,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:00:43,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:00:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:00:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-23 17:00:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-23 17:00:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:00:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-11-23 17:00:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-11-23 17:00:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:00:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:00:43,394 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:00:43,397 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:00:54,459 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:00:54,466 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:00:54,466 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 17:00:54,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:00:54 BoogieIcfgContainer [2021-11-23 17:00:54,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:00:54,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:00:54,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:00:54,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:00:54,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:00:42" (1/3) ... [2021-11-23 17:00:54,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454cffa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:00:54, skipping insertion in model container [2021-11-23 17:00:54,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:43" (2/3) ... [2021-11-23 17:00:54,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454cffa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:00:54, skipping insertion in model container [2021-11-23 17:00:54,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:00:54" (3/3) ... [2021-11-23 17:00:54,478 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_7.i [2021-11-23 17:00:54,485 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:00:54,486 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:00:54,547 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:00:54,556 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 17:00:54,556 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:00:54,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-23 17:00:54,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 17:00:54,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:00:54,580 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:00:54,581 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:00:54,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:00:54,588 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2021-11-23 17:00:54,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:00:54,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31328] [2021-11-23 17:00:54,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:00:54,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:00:54,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:00:54,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:00:54,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:00:54,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:00:54,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:00:54,884 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.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) 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 17:00:54,889 INFO L158 Benchmark]: Toolchain (without parser) took 12160.68ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 34.5MB in the beginning and 50.9MB in the end (delta: -16.5MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2021-11-23 17:00:54,890 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 56.6MB. Free memory was 37.5MB in the beginning and 37.5MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:00:54,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.51ms. Allocated memory is still 56.6MB. Free memory was 34.3MB in the beginning and 37.6MB in the end (delta: -3.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:00:54,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.96ms. Allocated memory is still 56.6MB. Free memory was 37.6MB in the beginning and 36.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:00:54,892 INFO L158 Benchmark]: Boogie Preprocessor took 37.05ms. Allocated memory is still 56.6MB. Free memory was 36.0MB in the beginning and 34.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:00:54,893 INFO L158 Benchmark]: RCFGBuilder took 11282.00ms. Allocated memory is still 56.6MB. Free memory was 34.8MB in the beginning and 25.9MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:00:54,894 INFO L158 Benchmark]: TraceAbstraction took 415.99ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 25.4MB in the beginning and 50.9MB in the end (delta: -25.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:00:54,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 56.6MB. Free memory was 37.5MB in the beginning and 37.5MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.51ms. Allocated memory is still 56.6MB. Free memory was 34.3MB in the beginning and 37.6MB in the end (delta: -3.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.96ms. Allocated memory is still 56.6MB. Free memory was 37.6MB in the beginning and 36.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.05ms. Allocated memory is still 56.6MB. Free memory was 36.0MB in the beginning and 34.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 11282.00ms. Allocated memory is still 56.6MB. Free memory was 34.8MB in the beginning and 25.9MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 415.99ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 25.4MB in the beginning and 50.9MB in the end (delta: -25.6MB). There was no memory consumed. 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 17:00:55,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c7036b-5ee7-4511-95e9-4823ede718cb/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