./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-014.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/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_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-014.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/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_fca34504-e01d-4c2f-b589-7a678f590ffe/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 736410d25baed214c8438b1c17a82ee464904f6d620951db2296933aa7fcdfac --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:22:43,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:22:43,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:22:43,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:22:43,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:22:43,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:22:43,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:22:43,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:22:43,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:22:43,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:22:43,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:22:43,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:22:43,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:22:43,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:22:43,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:22:43,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:22:43,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:22:43,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:22:43,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:22:43,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:22:43,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:22:43,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:22:43,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:22:43,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:22:43,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:22:43,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:22:43,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:22:43,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:22:43,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:22:43,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:22:43,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:22:43,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:22:43,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:22:43,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:22:43,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:22:43,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:22:43,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:22:43,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:22:43,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:22:43,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:22:43,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:22:43,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:22:43,265 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:22:43,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:22:43,266 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:22:43,266 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:22:43,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:22:43,267 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:22:43,268 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:22:43,268 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:22:43,268 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:22:43,269 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:22:43,269 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:22:43,269 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:22:43,270 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:22:43,270 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:22:43,270 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:22:43,270 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:22:43,271 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:22:43,271 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:22:43,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:22:43,272 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:22:43,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:22:43,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:22:43,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:22:43,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:22:43,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:22:43,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:22:43,274 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:22:43,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:22:43,275 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:22:43,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:22:43,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:22:43,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:22:43,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:43,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:22:43,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:22:43,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:22:43,277 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:22:43,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:22:43,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:22:43,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:22:43,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:22:43,279 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_fca34504-e01d-4c2f-b589-7a678f590ffe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 736410d25baed214c8438b1c17a82ee464904f6d620951db2296933aa7fcdfac [2021-11-23 17:22:43,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:22:43,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:22:43,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:22:43,640 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:22:43,642 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:22:43,644 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/xcsp/AllInterval-014.c [2021-11-23 17:22:43,744 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/data/096ca6b30/29436c776b064bbba01fd11b81bee58b/FLAGbf8d118a6 [2021-11-23 17:22:44,362 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:22:44,363 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/sv-benchmarks/c/xcsp/AllInterval-014.c [2021-11-23 17:22:44,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/data/096ca6b30/29436c776b064bbba01fd11b81bee58b/FLAGbf8d118a6 [2021-11-23 17:22:44,647 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/data/096ca6b30/29436c776b064bbba01fd11b81bee58b [2021-11-23 17:22:44,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:22:44,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:22:44,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:44,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:22:44,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:22:44,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:44" (1/1) ... [2021-11-23 17:22:44,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3280f5f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:44, skipping insertion in model container [2021-11-23 17:22:44,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:44" (1/1) ... [2021-11-23 17:22:44,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:22:44,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:22:45,067 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_fca34504-e01d-4c2f-b589-7a678f590ffe/sv-benchmarks/c/xcsp/AllInterval-014.c[9324,9337] [2021-11-23 17:22:45,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:45,104 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:22:45,215 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_fca34504-e01d-4c2f-b589-7a678f590ffe/sv-benchmarks/c/xcsp/AllInterval-014.c[9324,9337] [2021-11-23 17:22:45,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:45,242 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:22:45,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:45 WrapperNode [2021-11-23 17:22:45,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:45,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:45,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:22:45,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:22:45,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:45" (1/1) ... [2021-11-23 17:22:45,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:45" (1/1) ... [2021-11-23 17:22:45,352 INFO L137 Inliner]: procedures = 13, calls = 243, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 440 [2021-11-23 17:22:45,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:45,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:22:45,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:22:45,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:22:45,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:45" (1/1) ... [2021-11-23 17:22:45,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:45" (1/1) ... [2021-11-23 17:22:45,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:45" (1/1) ... [2021-11-23 17:22:45,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:45" (1/1) ... [2021-11-23 17:22:45,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:45" (1/1) ... [2021-11-23 17:22:45,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:45" (1/1) ... [2021-11-23 17:22:45,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:45" (1/1) ... [2021-11-23 17:22:45,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:22:45,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:22:45,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:22:45,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:22:45,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:45" (1/1) ... [2021-11-23 17:22:45,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:45,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:22:45,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:22:45,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:22:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:22:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:22:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:22:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:22:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-11-23 17:22:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-11-23 17:22:45,613 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:22:45,614 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:22:46,263 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:22:46,308 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:22:46,313 INFO L158 Benchmark]: Toolchain (without parser) took 1658.61ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 50.6MB in the beginning and 47.8MB in the end (delta: 2.7MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2021-11-23 17:22:46,314 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 88.1MB. Free memory was 67.1MB in the beginning and 67.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:22:46,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 585.08ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 50.3MB in the beginning and 79.2MB in the end (delta: -28.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:22:46,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.89ms. Allocated memory is still 109.1MB. Free memory was 79.2MB in the beginning and 75.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:46,317 INFO L158 Benchmark]: Boogie Preprocessor took 51.70ms. Allocated memory is still 109.1MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:46,319 INFO L158 Benchmark]: RCFGBuilder took 900.44ms. Allocated memory is still 109.1MB. Free memory was 73.6MB in the beginning and 47.8MB in the end (delta: 25.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-23 17:22:46,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 88.1MB. Free memory was 67.1MB in the beginning and 67.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 585.08ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 50.3MB in the beginning and 79.2MB in the end (delta: -28.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.89ms. Allocated memory is still 109.1MB. Free memory was 79.2MB in the beginning and 75.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.70ms. Allocated memory is still 109.1MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 900.44ms. Allocated memory is still 109.1MB. Free memory was 73.6MB in the beginning and 47.8MB in the end (delta: 25.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:22:46,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/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_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/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_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-014.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/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_fca34504-e01d-4c2f-b589-7a678f590ffe/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 736410d25baed214c8438b1c17a82ee464904f6d620951db2296933aa7fcdfac --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:22:49,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:22:49,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:22:49,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:22:49,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:22:49,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:22:49,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:22:49,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:22:49,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:22:49,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:22:49,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:22:49,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:22:49,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:22:49,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:22:49,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:22:49,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:22:49,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:22:49,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:22:49,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:22:49,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:22:49,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:22:49,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:22:49,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:22:49,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:22:49,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:22:49,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:22:49,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:22:49,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:22:49,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:22:49,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:22:49,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:22:49,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:22:49,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:22:49,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:22:49,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:22:49,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:22:49,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:22:49,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:22:49,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:22:49,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:22:49,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:22:49,434 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:22:49,484 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:22:49,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:22:49,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:22:49,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:22:49,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:22:49,487 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:22:49,487 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:22:49,487 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:22:49,487 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:22:49,487 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:22:49,488 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:22:49,489 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:22:49,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:22:49,490 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:22:49,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:22:49,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:22:49,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:22:49,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:22:49,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:22:49,491 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:22:49,492 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:22:49,492 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:22:49,492 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:22:49,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:22:49,492 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:22:49,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:22:49,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:22:49,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:22:49,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:22:49,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:49,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:22:49,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:22:49,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:22:49,495 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:22:49,495 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:22:49,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:22:49,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:22:49,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:22:49,496 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_fca34504-e01d-4c2f-b589-7a678f590ffe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 736410d25baed214c8438b1c17a82ee464904f6d620951db2296933aa7fcdfac [2021-11-23 17:22:49,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:22:49,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:22:49,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:22:49,950 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:22:49,950 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:22:49,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/xcsp/AllInterval-014.c [2021-11-23 17:22:50,054 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/data/f4af7d401/ca0834bab6304009a4968ed480d1cd26/FLAG6aa11e3bc [2021-11-23 17:22:50,787 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:22:50,797 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/sv-benchmarks/c/xcsp/AllInterval-014.c [2021-11-23 17:22:50,810 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/data/f4af7d401/ca0834bab6304009a4968ed480d1cd26/FLAG6aa11e3bc [2021-11-23 17:22:51,063 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/data/f4af7d401/ca0834bab6304009a4968ed480d1cd26 [2021-11-23 17:22:51,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:22:51,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:22:51,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:51,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:22:51,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:22:51,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:51" (1/1) ... [2021-11-23 17:22:51,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2247966c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:51, skipping insertion in model container [2021-11-23 17:22:51,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:51" (1/1) ... [2021-11-23 17:22:51,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:22:51,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:22:51,419 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_fca34504-e01d-4c2f-b589-7a678f590ffe/sv-benchmarks/c/xcsp/AllInterval-014.c[9324,9337] [2021-11-23 17:22:51,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:51,440 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:22:51,564 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_fca34504-e01d-4c2f-b589-7a678f590ffe/sv-benchmarks/c/xcsp/AllInterval-014.c[9324,9337] [2021-11-23 17:22:51,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:51,584 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:22:51,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:51 WrapperNode [2021-11-23 17:22:51,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:51,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:51,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:22:51,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:22:51,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:51" (1/1) ... [2021-11-23 17:22:51,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:51" (1/1) ... [2021-11-23 17:22:51,701 INFO L137 Inliner]: procedures = 13, calls = 243, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 413 [2021-11-23 17:22:51,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:51,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:22:51,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:22:51,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:22:51,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:51" (1/1) ... [2021-11-23 17:22:51,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:51" (1/1) ... [2021-11-23 17:22:51,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:51" (1/1) ... [2021-11-23 17:22:51,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:51" (1/1) ... [2021-11-23 17:22:51,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:51" (1/1) ... [2021-11-23 17:22:51,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:51" (1/1) ... [2021-11-23 17:22:51,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:51" (1/1) ... [2021-11-23 17:22:51,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:22:51,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:22:51,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:22:51,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:22:51,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:51" (1/1) ... [2021-11-23 17:22:51,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:51,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:22:51,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:22:51,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:22:51,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:22:51,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:22:51,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:22:51,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:22:51,912 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-11-23 17:22:51,912 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-11-23 17:22:52,011 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:22:52,013 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:22:52,690 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:22:52,704 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:22:52,704 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 17:22:52,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:22:52 BoogieIcfgContainer [2021-11-23 17:22:52,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:22:52,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:22:52,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:22:52,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:22:52,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:22:51" (1/3) ... [2021-11-23 17:22:52,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f986c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:22:52, skipping insertion in model container [2021-11-23 17:22:52,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:51" (2/3) ... [2021-11-23 17:22:52,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f986c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:22:52, skipping insertion in model container [2021-11-23 17:22:52,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:22:52" (3/3) ... [2021-11-23 17:22:52,717 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-014.c [2021-11-23 17:22:52,723 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:22:52,724 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:22:52,791 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:22:52,802 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 17:22:52,803 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:22:52,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 313 states, 74 states have (on average 1.2027027027027026) internal successors, (89), 75 states have internal predecessors, (89), 236 states have call successors, (236), 1 states have call predecessors, (236), 1 states have return successors, (236), 236 states have call predecessors, (236), 236 states have call successors, (236) [2021-11-23 17:22:53,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1250 [2021-11-23 17:22:53,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:22:53,019 INFO L514 BasicCegarLoop]: trace histogram [236, 236, 236, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:22:53,020 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:22:53,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:22:53,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1228325596, now seen corresponding path program 1 times [2021-11-23 17:22:53,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:22:53,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861086579] [2021-11-23 17:22:53,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:22:53,055 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:22:53,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:22:53,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:22:53,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:22:53,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:22:53,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:22:53,351 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:22:53,358 INFO L158 Benchmark]: Toolchain (without parser) took 2286.51ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 38.3MB in the beginning and 48.3MB in the end (delta: -10.1MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2021-11-23 17:22:53,359 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 58.7MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:22:53,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.25ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 38.1MB in the beginning and 50.5MB in the end (delta: -12.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-11-23 17:22:53,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 116.58ms. Allocated memory is still 71.3MB. Free memory was 50.5MB in the beginning and 47.1MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:53,364 INFO L158 Benchmark]: Boogie Preprocessor took 107.30ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 45.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:53,366 INFO L158 Benchmark]: RCFGBuilder took 892.26ms. Allocated memory is still 71.3MB. Free memory was 45.1MB in the beginning and 40.5MB in the end (delta: 4.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2021-11-23 17:22:53,373 INFO L158 Benchmark]: TraceAbstraction took 645.56ms. Allocated memory is still 71.3MB. Free memory was 40.2MB in the beginning and 48.3MB in the end (delta: -8.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2021-11-23 17:22:53,380 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 58.7MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 511.25ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 38.1MB in the beginning and 50.5MB in the end (delta: -12.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 116.58ms. Allocated memory is still 71.3MB. Free memory was 50.5MB in the beginning and 47.1MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.30ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 45.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 892.26ms. Allocated memory is still 71.3MB. Free memory was 45.1MB in the beginning and 40.5MB in the end (delta: 4.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * TraceAbstraction took 645.56ms. Allocated memory is still 71.3MB. Free memory was 40.2MB in the beginning and 48.3MB in the end (delta: -8.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:22:53,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fca34504-e01d-4c2f-b589-7a678f590ffe/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