./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_1.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_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/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_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/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_c3102e83-eacf-434a-a94e-dca54139fd25/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 487cb753ab668f0dc3893a3ab2fa6b5020a9a953baa1eebb275c5ff36ca3ae95 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:45:57,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:45:57,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:45:57,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:45:57,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:45:57,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:45:57,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:45:57,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:45:57,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:45:57,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:45:57,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:45:57,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:45:57,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:45:57,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:45:57,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:45:57,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:45:57,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:45:57,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:45:57,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:45:57,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:45:57,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:45:57,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:45:57,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:45:57,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:45:57,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:45:57,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:45:57,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:45:57,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:45:57,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:45:57,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:45:57,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:45:57,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:45:57,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:45:57,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:45:57,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:45:57,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:45:57,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:45:57,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:45:57,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:45:57,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:45:57,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:45:57,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:45:57,370 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:45:57,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:45:57,371 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:45:57,371 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:45:57,372 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:45:57,372 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:45:57,372 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:45:57,372 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:45:57,373 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:45:57,373 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:45:57,373 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:45:57,373 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:45:57,374 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:45:57,374 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:45:57,374 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:45:57,374 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:45:57,374 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:45:57,375 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:45:57,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:45:57,376 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:45:57,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:45:57,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:45:57,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:45:57,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:45:57,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:45:57,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:45:57,377 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:45:57,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:45:57,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:45:57,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:45:57,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:45:57,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:45:57,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:45:57,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:45:57,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:45:57,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:45:57,380 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:45:57,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:45:57,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:45:57,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:45:57,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:45:57,381 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_c3102e83-eacf-434a-a94e-dca54139fd25/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 487cb753ab668f0dc3893a3ab2fa6b5020a9a953baa1eebb275c5ff36ca3ae95 [2021-11-23 16:45:57,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:45:57,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:45:57,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:45:57,712 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:45:57,712 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:45:57,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i [2021-11-23 16:45:57,800 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/data/3df640b38/97f36f6db2c24c9489d419ad75ec75ae/FLAG047ac84ec [2021-11-23 16:45:58,256 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:45:58,256 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/sv-benchmarks/c/floats-cdfpl/newton_3_1.i [2021-11-23 16:45:58,263 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/data/3df640b38/97f36f6db2c24c9489d419ad75ec75ae/FLAG047ac84ec [2021-11-23 16:45:58,637 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/data/3df640b38/97f36f6db2c24c9489d419ad75ec75ae [2021-11-23 16:45:58,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:45:58,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:45:58,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:45:58,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:45:58,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:45:58,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:45:58" (1/1) ... [2021-11-23 16:45:58,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1563d108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:58, skipping insertion in model container [2021-11-23 16:45:58,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:45:58" (1/1) ... [2021-11-23 16:45:58,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:45:58,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:45:58,961 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_c3102e83-eacf-434a-a94e-dca54139fd25/sv-benchmarks/c/floats-cdfpl/newton_3_1.i[1764,1777] [2021-11-23 16:45:58,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:45:58,974 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:45:59,010 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_c3102e83-eacf-434a-a94e-dca54139fd25/sv-benchmarks/c/floats-cdfpl/newton_3_1.i[1764,1777] [2021-11-23 16:45:59,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:45:59,029 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:45:59,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59 WrapperNode [2021-11-23 16:45:59,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:45:59,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:45:59,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:45:59,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:45:59,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:45:59,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:45:59,071 INFO L137 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-11-23 16:45:59,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:45:59,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:45:59,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:45:59,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:45:59,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:45:59,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:45:59,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:45:59,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:45:59,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:45:59,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:45:59,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:45:59,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:45:59,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:45:59,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:45:59,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:45:59,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:45:59,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:45:59,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:45:59,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:45:59,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:45:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:45:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-23 16:45:59,214 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-23 16:45:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-11-23 16:45:59,214 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-11-23 16:45:59,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:45:59,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:45:59,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:45:59,289 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:45:59,291 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:45:59,436 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:45:59,455 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 16:45:59,460 INFO L158 Benchmark]: Toolchain (without parser) took 818.57ms. Allocated memory was 96.5MB in the beginning and 144.7MB in the end (delta: 48.2MB). Free memory was 60.8MB in the beginning and 107.4MB in the end (delta: -46.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:45:59,462 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 69.0MB in the end (delta: 24.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:45:59,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.17ms. Allocated memory was 96.5MB in the beginning and 144.7MB in the end (delta: 48.2MB). Free memory was 60.5MB in the beginning and 119.4MB in the end (delta: -58.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 16:45:59,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.26ms. Allocated memory is still 144.7MB. Free memory was 119.4MB in the beginning and 118.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:45:59,465 INFO L158 Benchmark]: Boogie Preprocessor took 34.41ms. Allocated memory is still 144.7MB. Free memory was 117.9MB in the beginning and 117.3MB in the end (delta: 573.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:45:59,466 INFO L158 Benchmark]: RCFGBuilder took 350.01ms. Allocated memory is still 144.7MB. Free memory was 117.3MB in the beginning and 107.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 16:45:59,477 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 69.0MB in the end (delta: 24.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.17ms. Allocated memory was 96.5MB in the beginning and 144.7MB in the end (delta: 48.2MB). Free memory was 60.5MB in the beginning and 119.4MB in the end (delta: -58.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.26ms. Allocated memory is still 144.7MB. Free memory was 119.4MB in the beginning and 118.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.41ms. Allocated memory is still 144.7MB. Free memory was 117.9MB in the beginning and 117.3MB in the end (delta: 573.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.01ms. Allocated memory is still 144.7MB. Free memory was 117.3MB in the beginning and 107.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. 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 16:45:59,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/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_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/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_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/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_c3102e83-eacf-434a-a94e-dca54139fd25/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 487cb753ab668f0dc3893a3ab2fa6b5020a9a953baa1eebb275c5ff36ca3ae95 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:46:01,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:46:01,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:46:01,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:46:01,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:46:01,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:46:01,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:46:01,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:46:01,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:46:01,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:46:01,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:46:01,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:46:01,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:46:01,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:46:01,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:46:02,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:46:02,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:46:02,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:46:02,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:46:02,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:46:02,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:46:02,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:46:02,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:46:02,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:46:02,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:46:02,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:46:02,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:46:02,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:46:02,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:46:02,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:46:02,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:46:02,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:46:02,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:46:02,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:46:02,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:46:02,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:46:02,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:46:02,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:46:02,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:46:02,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:46:02,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:46:02,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:46:02,075 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:46:02,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:46:02,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:46:02,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:46:02,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:46:02,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:46:02,078 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:46:02,078 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:46:02,078 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:46:02,079 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:46:02,080 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:46:02,080 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:46:02,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:46:02,082 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:46:02,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:46:02,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:46:02,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:46:02,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:46:02,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:46:02,083 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:46:02,083 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:46:02,083 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:46:02,084 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:46:02,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:46:02,084 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:46:02,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:46:02,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:46:02,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:46:02,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:46:02,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:02,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:46:02,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:46:02,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:46:02,086 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:46:02,086 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:46:02,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:46:02,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:46:02,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:46:02,087 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_c3102e83-eacf-434a-a94e-dca54139fd25/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 487cb753ab668f0dc3893a3ab2fa6b5020a9a953baa1eebb275c5ff36ca3ae95 [2021-11-23 16:46:02,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:46:02,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:46:02,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:46:02,502 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:46:02,503 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:46:02,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i [2021-11-23 16:46:02,584 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/data/b7a56af51/fec3354d955b41b4a4e8d5be06d2f6bc/FLAG6b9388d14 [2021-11-23 16:46:03,143 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:46:03,144 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/sv-benchmarks/c/floats-cdfpl/newton_3_1.i [2021-11-23 16:46:03,150 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/data/b7a56af51/fec3354d955b41b4a4e8d5be06d2f6bc/FLAG6b9388d14 [2021-11-23 16:46:03,542 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/data/b7a56af51/fec3354d955b41b4a4e8d5be06d2f6bc [2021-11-23 16:46:03,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:46:03,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:46:03,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:03,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:46:03,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:46:03,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:03" (1/1) ... [2021-11-23 16:46:03,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea71008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:03, skipping insertion in model container [2021-11-23 16:46:03,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:03" (1/1) ... [2021-11-23 16:46:03,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:46:03,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:46:03,805 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_c3102e83-eacf-434a-a94e-dca54139fd25/sv-benchmarks/c/floats-cdfpl/newton_3_1.i[1764,1777] [2021-11-23 16:46:03,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:03,819 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:46:03,838 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_c3102e83-eacf-434a-a94e-dca54139fd25/sv-benchmarks/c/floats-cdfpl/newton_3_1.i[1764,1777] [2021-11-23 16:46:03,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:03,853 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:46:03,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:03 WrapperNode [2021-11-23 16:46:03,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:03,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:03,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:46:03,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:46:03,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:03" (1/1) ... [2021-11-23 16:46:03,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:03" (1/1) ... [2021-11-23 16:46:03,885 INFO L137 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-11-23 16:46:03,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:03,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:46:03,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:46:03,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:46:03,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:03" (1/1) ... [2021-11-23 16:46:03,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:03" (1/1) ... [2021-11-23 16:46:03,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:03" (1/1) ... [2021-11-23 16:46:03,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:03" (1/1) ... [2021-11-23 16:46:03,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:03" (1/1) ... [2021-11-23 16:46:03,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:03" (1/1) ... [2021-11-23 16:46:03,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:03" (1/1) ... [2021-11-23 16:46:03,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:46:03,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:46:03,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:46:03,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:46:03,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:03" (1/1) ... [2021-11-23 16:46:03,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:03,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:46:03,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:46:04,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:46:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:46:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-23 16:46:04,025 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-23 16:46:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:46:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-11-23 16:46:04,026 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-11-23 16:46:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:46:04,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:46:04,104 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:46:04,106 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:46:13,248 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:46:13,255 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:46:13,256 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 16:46:13,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:46:13 BoogieIcfgContainer [2021-11-23 16:46:13,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:46:13,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:46:13,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:46:13,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:46:13,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:46:03" (1/3) ... [2021-11-23 16:46:13,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfdb960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:46:13, skipping insertion in model container [2021-11-23 16:46:13,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:03" (2/3) ... [2021-11-23 16:46:13,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfdb960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:46:13, skipping insertion in model container [2021-11-23 16:46:13,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:46:13" (3/3) ... [2021-11-23 16:46:13,268 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_1.i [2021-11-23 16:46:13,274 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:46:13,274 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:46:13,319 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:46:13,329 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 16:46:13,329 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:46:13,349 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 16:46:13,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 16:46:13,356 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:46:13,357 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 16:46:13,357 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:46:13,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:46:13,364 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2021-11-23 16:46:13,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:46:13,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65494654] [2021-11-23 16:46:13,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:46:13,381 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:46:13,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:46:13,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:46:13,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:46:13,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 16:46:13,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:46:13,635 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 16:46:13,642 INFO L158 Benchmark]: Toolchain (without parser) took 10079.09ms. Allocated memory is still 81.8MB. Free memory was 47.0MB in the beginning and 42.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2021-11-23 16:46:13,643 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 81.8MB. Free memory was 63.5MB in the beginning and 63.5MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:46:13,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.61ms. Allocated memory is still 81.8MB. Free memory was 46.9MB in the beginning and 63.9MB in the end (delta: -17.0MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-11-23 16:46:13,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.39ms. Allocated memory is still 81.8MB. Free memory was 63.9MB in the beginning and 62.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:46:13,648 INFO L158 Benchmark]: Boogie Preprocessor took 28.19ms. Allocated memory is still 81.8MB. Free memory was 62.3MB in the beginning and 61.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:46:13,649 INFO L158 Benchmark]: RCFGBuilder took 9342.77ms. Allocated memory is still 81.8MB. Free memory was 61.0MB in the beginning and 51.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:46:13,651 INFO L158 Benchmark]: TraceAbstraction took 376.95ms. Allocated memory is still 81.8MB. Free memory was 51.2MB in the beginning and 42.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 16:46:13,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 81.8MB. Free memory was 63.5MB in the beginning and 63.5MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.61ms. Allocated memory is still 81.8MB. Free memory was 46.9MB in the beginning and 63.9MB in the end (delta: -17.0MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.39ms. Allocated memory is still 81.8MB. Free memory was 63.9MB in the beginning and 62.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.19ms. Allocated memory is still 81.8MB. Free memory was 62.3MB in the beginning and 61.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 9342.77ms. Allocated memory is still 81.8MB. Free memory was 61.0MB in the beginning and 51.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 376.95ms. Allocated memory is still 81.8MB. Free memory was 51.2MB in the beginning and 42.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. 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 16:46:13,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3102e83-eacf-434a-a94e-dca54139fd25/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