./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_2.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_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/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_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/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_c4cd8105-8a92-4861-8320-36e2ee0248c1/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 c1d4d49264539a089c5128bd7fc98307efecaf11cb51350b8359b7fe239beab3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:47:17,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:47:17,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:47:17,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:47:17,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:47:17,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:47:17,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:47:17,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:47:17,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:47:17,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:47:17,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:47:17,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:47:17,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:47:17,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:47:17,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:47:17,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:47:17,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:47:17,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:47:17,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:47:17,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:47:17,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:47:17,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:47:17,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:47:17,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:47:18,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:47:18,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:47:18,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:47:18,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:47:18,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:47:18,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:47:18,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:47:18,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:47:18,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:47:18,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:47:18,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:47:18,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:47:18,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:47:18,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:47:18,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:47:18,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:47:18,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:47:18,025 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:47:18,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:47:18,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:47:18,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:47:18,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:47:18,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:47:18,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:47:18,086 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:47:18,087 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:47:18,087 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:47:18,087 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:47:18,089 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:47:18,089 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:47:18,089 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:47:18,090 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:47:18,090 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:47:18,090 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:47:18,091 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:47:18,091 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:47:18,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:47:18,092 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:47:18,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:47:18,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:47:18,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:47:18,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:47:18,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:47:18,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:47:18,096 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:47:18,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:47:18,096 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:47:18,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:47:18,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:47:18,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:47:18,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:18,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:47:18,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:47:18,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:47:18,099 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:47:18,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:47:18,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:47:18,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:47:18,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:47:18,100 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_c4cd8105-8a92-4861-8320-36e2ee0248c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d4d49264539a089c5128bd7fc98307efecaf11cb51350b8359b7fe239beab3 [2021-11-23 16:47:18,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:47:18,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:47:18,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:47:18,525 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:47:18,526 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:47:18,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i [2021-11-23 16:47:18,622 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/data/c82838eba/f9e52456ad564db6a14815cb6287fd30/FLAGe86832059 [2021-11-23 16:47:19,234 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:47:19,237 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/sv-benchmarks/c/floats-cdfpl/newton_3_2.i [2021-11-23 16:47:19,249 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/data/c82838eba/f9e52456ad564db6a14815cb6287fd30/FLAGe86832059 [2021-11-23 16:47:19,554 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/data/c82838eba/f9e52456ad564db6a14815cb6287fd30 [2021-11-23 16:47:19,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:47:19,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:47:19,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:19,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:47:19,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:47:19,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:19,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3becb7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19, skipping insertion in model container [2021-11-23 16:47:19,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:19,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:47:19,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:47:19,913 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_c4cd8105-8a92-4861-8320-36e2ee0248c1/sv-benchmarks/c/floats-cdfpl/newton_3_2.i[1764,1777] [2021-11-23 16:47:19,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:19,928 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:47:19,968 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_c4cd8105-8a92-4861-8320-36e2ee0248c1/sv-benchmarks/c/floats-cdfpl/newton_3_2.i[1764,1777] [2021-11-23 16:47:19,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:19,990 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:47:19,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19 WrapperNode [2021-11-23 16:47:19,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:19,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:19,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:47:19,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:47:20,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:20,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:20,034 INFO L137 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-11-23 16:47:20,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:20,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:47:20,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:47:20,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:47:20,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:20,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:20,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:20,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:20,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:20,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:20,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:20,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:47:20,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:47:20,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:47:20,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:47:20,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:20,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:20,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:47:20,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:47:20,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:47:20,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:47:20,200 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-23 16:47:20,200 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-23 16:47:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-11-23 16:47:20,201 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-11-23 16:47:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:47:20,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:47:20,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:47:20,286 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:47:20,288 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:47:20,455 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:47:20,475 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 16:47:20,480 INFO L158 Benchmark]: Toolchain (without parser) took 918.34ms. Allocated memory is still 125.8MB. Free memory was 87.5MB in the beginning and 86.9MB in the end (delta: 571.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:20,482 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 125.8MB. Free memory was 104.3MB in the beginning and 104.3MB in the end (delta: 78.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:20,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.48ms. Allocated memory is still 125.8MB. Free memory was 87.3MB in the beginning and 99.5MB in the end (delta: -12.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 16:47:20,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.11ms. Allocated memory is still 125.8MB. Free memory was 99.1MB in the beginning and 97.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:47:20,485 INFO L158 Benchmark]: Boogie Preprocessor took 57.46ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 97.0MB in the end (delta: 809.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:20,486 INFO L158 Benchmark]: RCFGBuilder took 383.73ms. Allocated memory is still 125.8MB. Free memory was 96.6MB in the beginning and 86.9MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:47:20,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 125.8MB. Free memory was 104.3MB in the beginning and 104.3MB in the end (delta: 78.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 424.48ms. Allocated memory is still 125.8MB. Free memory was 87.3MB in the beginning and 99.5MB in the end (delta: -12.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.11ms. Allocated memory is still 125.8MB. Free memory was 99.1MB in the beginning and 97.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.46ms. Allocated memory is still 125.8MB. Free memory was 97.8MB in the beginning and 97.0MB in the end (delta: 809.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 383.73ms. Allocated memory is still 125.8MB. Free memory was 96.6MB in the beginning and 86.9MB in the end (delta: 9.7MB). 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 16:47:20,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/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_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/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_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/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_c4cd8105-8a92-4861-8320-36e2ee0248c1/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 c1d4d49264539a089c5128bd7fc98307efecaf11cb51350b8359b7fe239beab3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:47:23,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:47:23,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:47:23,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:47:23,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:47:23,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:47:23,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:47:23,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:47:23,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:47:23,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:47:23,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:47:23,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:47:23,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:47:23,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:47:23,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:47:23,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:47:23,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:47:23,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:47:23,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:47:23,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:47:23,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:47:23,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:47:23,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:47:23,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:47:23,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:47:23,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:47:23,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:47:23,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:47:23,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:47:23,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:47:23,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:47:23,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:47:23,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:47:23,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:47:23,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:47:23,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:47:23,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:47:23,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:47:23,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:47:23,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:47:23,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:47:23,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:47:23,522 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:47:23,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:47:23,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:47:23,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:47:23,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:47:23,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:47:23,529 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:47:23,529 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:47:23,529 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:47:23,530 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:47:23,531 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:47:23,531 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:47:23,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:47:23,533 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:47:23,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:47:23,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:47:23,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:47:23,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:47:23,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:47:23,535 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:47:23,535 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:47:23,535 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:47:23,535 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:47:23,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:47:23,536 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:47:23,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:47:23,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:47:23,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:47:23,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:47:23,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:23,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:47:23,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:47:23,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:47:23,539 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:47:23,539 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:47:23,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:47:23,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:47:23,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:47:23,540 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_c4cd8105-8a92-4861-8320-36e2ee0248c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d4d49264539a089c5128bd7fc98307efecaf11cb51350b8359b7fe239beab3 [2021-11-23 16:47:23,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:47:24,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:47:24,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:47:24,045 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:47:24,046 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:47:24,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i [2021-11-23 16:47:24,140 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/data/0e6c1417a/aadba066a3e3469cba193b5706e2cbf7/FLAG839580412 [2021-11-23 16:47:24,780 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:47:24,781 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/sv-benchmarks/c/floats-cdfpl/newton_3_2.i [2021-11-23 16:47:24,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/data/0e6c1417a/aadba066a3e3469cba193b5706e2cbf7/FLAG839580412 [2021-11-23 16:47:25,153 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/data/0e6c1417a/aadba066a3e3469cba193b5706e2cbf7 [2021-11-23 16:47:25,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:47:25,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:47:25,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:25,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:47:25,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:47:25,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:25" (1/1) ... [2021-11-23 16:47:25,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e209f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:25, skipping insertion in model container [2021-11-23 16:47:25,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:25" (1/1) ... [2021-11-23 16:47:25,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:47:25,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:47:25,390 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_c4cd8105-8a92-4861-8320-36e2ee0248c1/sv-benchmarks/c/floats-cdfpl/newton_3_2.i[1764,1777] [2021-11-23 16:47:25,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:25,410 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:47:25,444 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_c4cd8105-8a92-4861-8320-36e2ee0248c1/sv-benchmarks/c/floats-cdfpl/newton_3_2.i[1764,1777] [2021-11-23 16:47:25,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:25,485 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:47:25,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:25 WrapperNode [2021-11-23 16:47:25,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:25,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:25,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:47:25,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:47:25,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:25" (1/1) ... [2021-11-23 16:47:25,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:25" (1/1) ... [2021-11-23 16:47:25,579 INFO L137 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-11-23 16:47:25,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:25,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:47:25,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:47:25,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:47:25,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:25" (1/1) ... [2021-11-23 16:47:25,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:25" (1/1) ... [2021-11-23 16:47:25,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:25" (1/1) ... [2021-11-23 16:47:25,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:25" (1/1) ... [2021-11-23 16:47:25,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:25" (1/1) ... [2021-11-23 16:47:25,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:25" (1/1) ... [2021-11-23 16:47:25,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:25" (1/1) ... [2021-11-23 16:47:25,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:47:25,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:47:25,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:47:25,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:47:25,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:25" (1/1) ... [2021-11-23 16:47:25,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:25,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:47:25,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:47:25,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:47:25,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:47:25,754 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-23 16:47:25,755 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-23 16:47:25,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:47:25,756 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-11-23 16:47:25,756 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-11-23 16:47:25,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:47:25,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:47:25,859 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:47:25,862 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:47:32,230 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:47:32,238 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:47:32,239 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 16:47:32,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:47:32 BoogieIcfgContainer [2021-11-23 16:47:32,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:47:32,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:47:32,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:47:32,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:47:32,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:47:25" (1/3) ... [2021-11-23 16:47:32,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afc7dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:47:32, skipping insertion in model container [2021-11-23 16:47:32,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:25" (2/3) ... [2021-11-23 16:47:32,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@afc7dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:47:32, skipping insertion in model container [2021-11-23 16:47:32,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:47:32" (3/3) ... [2021-11-23 16:47:32,252 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_2.i [2021-11-23 16:47:32,259 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:47:32,260 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:47:32,319 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:47:32,328 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 16:47:32,329 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:47:32,350 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 16:47:32,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 16:47:32,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:47:32,358 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 16:47:32,359 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:47:32,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:47:32,366 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2021-11-23 16:47:32,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:47:32,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473170456] [2021-11-23 16:47:32,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:47:32,392 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:47:32,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:47:32,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:47:32,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:47:32,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 16:47:32,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:47:32,640 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 16:47:32,643 INFO L158 Benchmark]: Toolchain (without parser) took 7482.98ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.8MB in the beginning and 52.0MB in the end (delta: -17.2MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2021-11-23 16:47:32,644 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 56.6MB. Free memory is still 37.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:32,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.77ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.6MB in the beginning and 54.8MB in the end (delta: -20.2MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2021-11-23 16:47:32,647 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.54ms. Allocated memory is still 71.3MB. Free memory was 54.8MB in the beginning and 53.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:47:32,648 INFO L158 Benchmark]: Boogie Preprocessor took 59.97ms. Allocated memory is still 71.3MB. Free memory was 53.3MB in the beginning and 52.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:32,649 INFO L158 Benchmark]: RCFGBuilder took 6598.74ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 42.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 16:47:32,650 INFO L158 Benchmark]: TraceAbstraction took 397.60ms. Allocated memory is still 71.3MB. Free memory was 42.5MB in the beginning and 52.0MB in the end (delta: -9.5MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2021-11-23 16:47:32,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 56.6MB. Free memory is still 37.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.77ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.6MB in the beginning and 54.8MB in the end (delta: -20.2MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.54ms. Allocated memory is still 71.3MB. Free memory was 54.8MB in the beginning and 53.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.97ms. Allocated memory is still 71.3MB. Free memory was 53.3MB in the beginning and 52.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 6598.74ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 42.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 397.60ms. Allocated memory is still 71.3MB. Free memory was 42.5MB in the beginning and 52.0MB in the end (delta: -9.5MB). Peak memory consumption was 9.6MB. 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 16:47:32,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4cd8105-8a92-4861-8320-36e2ee0248c1/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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable