./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.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_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/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_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/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_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/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 d20064856c358ac34c15406fcd734cb6b5694fad7d43f4bd7014ec1cea8e62ba --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:27:04,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:27:04,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:27:04,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:27:04,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:27:04,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:27:04,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:27:04,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:27:04,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:27:04,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:27:04,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:27:04,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:27:04,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:27:04,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:27:04,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:27:04,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:27:04,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:27:04,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:27:04,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:27:04,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:27:04,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:27:04,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:27:04,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:27:04,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:27:04,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:27:04,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:27:04,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:27:04,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:27:04,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:27:04,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:27:04,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:27:04,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:27:04,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:27:04,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:27:04,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:27:04,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:27:04,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:27:04,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:27:04,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:27:04,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:27:04,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:27:04,272 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:27:04,307 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:27:04,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:27:04,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:27:04,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:27:04,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:27:04,309 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:27:04,309 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:27:04,309 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:27:04,309 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:27:04,310 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:27:04,310 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:27:04,310 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:27:04,310 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:27:04,311 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:27:04,311 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:27:04,311 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:27:04,311 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:27:04,311 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:27:04,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:27:04,312 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:27:04,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:27:04,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:27:04,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:27:04,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:27:04,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:27:04,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:27:04,314 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:27:04,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:27:04,314 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:27:04,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:27:04,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:27:04,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:27:04,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:27:04,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:27:04,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:27:04,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:27:04,316 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:27:04,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:27:04,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:27:04,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:27:04,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:27:04,317 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_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d20064856c358ac34c15406fcd734cb6b5694fad7d43f4bd7014ec1cea8e62ba [2021-11-23 17:27:04,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:27:04,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:27:04,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:27:04,632 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:27:04,633 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:27:04,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c [2021-11-23 17:27:04,730 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/data/8b4287429/668501cdb77d4f65ba8d3077eb57c67b/FLAG40e7f50c1 [2021-11-23 17:27:05,350 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:27:05,360 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c [2021-11-23 17:27:05,380 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/data/8b4287429/668501cdb77d4f65ba8d3077eb57c67b/FLAG40e7f50c1 [2021-11-23 17:27:05,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/data/8b4287429/668501cdb77d4f65ba8d3077eb57c67b [2021-11-23 17:27:05,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:27:05,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:27:05,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:27:05,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:27:05,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:27:05,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:27:05" (1/1) ... [2021-11-23 17:27:05,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14638de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:05, skipping insertion in model container [2021-11-23 17:27:05,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:27:05" (1/1) ... [2021-11-23 17:27:05,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:27:05,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:27:06,047 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_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c[13937,13950] [2021-11-23 17:27:06,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:27:06,090 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:27:06,151 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_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c[13937,13950] [2021-11-23 17:27:06,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:27:06,211 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:27:06,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:06 WrapperNode [2021-11-23 17:27:06,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:27:06,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:27:06,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:27:06,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:27:06,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:06" (1/1) ... [2021-11-23 17:27:06,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:06" (1/1) ... [2021-11-23 17:27:06,264 INFO L137 Inliner]: procedures = 56, calls = 156, calls flagged for inlining = 24, calls inlined = 18, statements flattened = 227 [2021-11-23 17:27:06,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:27:06,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:27:06,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:27:06,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:27:06,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:06" (1/1) ... [2021-11-23 17:27:06,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:06" (1/1) ... [2021-11-23 17:27:06,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:06" (1/1) ... [2021-11-23 17:27:06,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:06" (1/1) ... [2021-11-23 17:27:06,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:06" (1/1) ... [2021-11-23 17:27:06,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:06" (1/1) ... [2021-11-23 17:27:06,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:06" (1/1) ... [2021-11-23 17:27:06,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:27:06,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:27:06,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:27:06,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:27:06,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:06" (1/1) ... [2021-11-23 17:27:06,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:27:06,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:27:06,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:27:06,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:27:06,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:27:06,398 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 17:27:06,398 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 17:27:06,399 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 17:27:06,399 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 17:27:06,399 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 17:27:06,399 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 17:27:06,399 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 17:27:06,399 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 17:27:06,399 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-23 17:27:06,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-23 17:27:06,400 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 17:27:06,400 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 17:27:06,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:27:06,400 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 17:27:06,400 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 17:27:06,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:27:06,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:27:06,472 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:27:06,474 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:27:06,754 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:27:06,831 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 17:27:06,835 INFO L158 Benchmark]: Toolchain (without parser) took 1146.41ms. Allocated memory is still 100.7MB. Free memory was 58.4MB in the beginning and 44.2MB in the end (delta: 14.2MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2021-11-23 17:27:06,836 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:27:06,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.63ms. Allocated memory is still 100.7MB. Free memory was 58.2MB in the beginning and 66.3MB in the end (delta: -8.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:27:06,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.19ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 64.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:27:06,839 INFO L158 Benchmark]: Boogie Preprocessor took 61.22ms. Allocated memory is still 100.7MB. Free memory was 64.0MB in the beginning and 62.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:27:06,839 INFO L158 Benchmark]: RCFGBuilder took 506.17ms. Allocated memory is still 100.7MB. Free memory was 62.2MB in the beginning and 44.2MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 17:27:06,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 517.63ms. Allocated memory is still 100.7MB. Free memory was 58.2MB in the beginning and 66.3MB in the end (delta: -8.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.19ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 64.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.22ms. Allocated memory is still 100.7MB. Free memory was 64.0MB in the beginning and 62.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 506.17ms. Allocated memory is still 100.7MB. Free memory was 62.2MB in the beginning and 44.2MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. 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 17:27:06,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/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_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/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_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/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_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/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 d20064856c358ac34c15406fcd734cb6b5694fad7d43f4bd7014ec1cea8e62ba --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:27:09,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:27:09,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:27:09,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:27:09,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:27:09,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:27:09,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:27:09,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:27:09,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:27:09,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:27:09,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:27:09,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:27:09,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:27:09,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:27:09,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:27:09,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:27:09,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:27:09,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:27:09,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:27:09,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:27:09,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:27:09,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:27:09,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:27:09,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:27:09,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:27:09,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:27:09,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:27:09,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:27:09,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:27:09,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:27:09,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:27:09,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:27:09,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:27:09,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:27:09,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:27:09,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:27:09,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:27:09,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:27:09,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:27:09,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:27:09,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:27:09,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:27:09,674 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:27:09,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:27:09,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:27:09,675 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:27:09,676 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:27:09,676 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:27:09,676 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:27:09,676 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:27:09,677 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:27:09,677 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:27:09,678 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:27:09,678 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:27:09,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:27:09,680 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:27:09,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:27:09,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:27:09,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:27:09,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:27:09,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:27:09,681 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:27:09,681 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:27:09,681 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:27:09,681 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:27:09,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:27:09,682 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:27:09,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:27:09,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:27:09,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:27:09,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:27:09,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:27:09,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:27:09,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:27:09,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:27:09,684 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:27:09,684 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:27:09,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:27:09,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:27:09,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:27:09,685 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_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d20064856c358ac34c15406fcd734cb6b5694fad7d43f4bd7014ec1cea8e62ba [2021-11-23 17:27:10,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:27:10,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:27:10,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:27:10,074 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:27:10,074 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:27:10,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c [2021-11-23 17:27:10,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/data/6786687f0/78c008b67a394df1856123e5c6c659b5/FLAGdce816ebf [2021-11-23 17:27:10,758 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:27:10,758 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c [2021-11-23 17:27:10,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/data/6786687f0/78c008b67a394df1856123e5c6c659b5/FLAGdce816ebf [2021-11-23 17:27:11,060 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/data/6786687f0/78c008b67a394df1856123e5c6c659b5 [2021-11-23 17:27:11,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:27:11,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:27:11,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:27:11,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:27:11,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:27:11,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:27:11" (1/1) ... [2021-11-23 17:27:11,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ddaef47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:11, skipping insertion in model container [2021-11-23 17:27:11,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:27:11" (1/1) ... [2021-11-23 17:27:11,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:27:11,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:27:11,456 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_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c[13937,13950] [2021-11-23 17:27:11,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:27:11,529 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 17:27:11,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:27:11,595 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_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c[13937,13950] [2021-11-23 17:27:11,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:27:11,623 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:27:11,709 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_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c[13937,13950] [2021-11-23 17:27:11,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:27:11,774 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:27:11,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:11 WrapperNode [2021-11-23 17:27:11,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:27:11,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:27:11,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:27:11,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:27:11,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:11" (1/1) ... [2021-11-23 17:27:11,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:11" (1/1) ... [2021-11-23 17:27:11,865 INFO L137 Inliner]: procedures = 58, calls = 156, calls flagged for inlining = 24, calls inlined = 18, statements flattened = 217 [2021-11-23 17:27:11,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:27:11,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:27:11,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:27:11,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:27:11,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:11" (1/1) ... [2021-11-23 17:27:11,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:11" (1/1) ... [2021-11-23 17:27:11,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:11" (1/1) ... [2021-11-23 17:27:11,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:11" (1/1) ... [2021-11-23 17:27:11,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:11" (1/1) ... [2021-11-23 17:27:11,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:11" (1/1) ... [2021-11-23 17:27:11,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:11" (1/1) ... [2021-11-23 17:27:11,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:27:11,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:27:11,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:27:11,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:27:11,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:11" (1/1) ... [2021-11-23 17:27:11,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:27:11,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:27:11,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:27:11,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:27:12,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:27:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 17:27:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 17:27:12,033 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 17:27:12,033 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 17:27:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 17:27:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 17:27:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 17:27:12,034 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 17:27:12,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:27:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-23 17:27:12,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-23 17:27:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 17:27:12,035 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 17:27:12,035 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 17:27:12,035 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 17:27:12,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:27:12,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:27:12,173 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:27:12,190 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:27:12,579 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:27:12,590 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:27:12,590 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 17:27:12,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:27:12 BoogieIcfgContainer [2021-11-23 17:27:12,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:27:12,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:27:12,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:27:12,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:27:12,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:27:11" (1/3) ... [2021-11-23 17:27:12,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21836273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:27:12, skipping insertion in model container [2021-11-23 17:27:12,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:11" (2/3) ... [2021-11-23 17:27:12,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21836273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:27:12, skipping insertion in model container [2021-11-23 17:27:12,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:27:12" (3/3) ... [2021-11-23 17:27:12,605 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product27.cil.c [2021-11-23 17:27:12,610 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:27:12,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:27:12,676 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:27:12,685 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 17:27:12,685 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:27:12,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 72 states have internal predecessors, (89), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-23 17:27:12,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 17:27:12,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:27:12,728 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 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 17:27:12,729 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:27:12,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:27:12,735 INFO L85 PathProgramCache]: Analyzing trace with hash 792509939, now seen corresponding path program 1 times [2021-11-23 17:27:12,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:27:12,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092728328] [2021-11-23 17:27:12,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:27:12,756 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:27:12,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:27:12,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:27:12,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:27:12,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:27:13,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:27:13,040 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 17:27:13,046 INFO L158 Benchmark]: Toolchain (without parser) took 1981.39ms. Allocated memory is still 73.4MB. Free memory was 37.3MB in the beginning and 36.1MB in the end (delta: 1.2MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2021-11-23 17:27:13,047 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 73.4MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:27:13,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 709.71ms. Allocated memory is still 73.4MB. Free memory was 37.1MB in the beginning and 41.7MB in the end (delta: -4.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-23 17:27:13,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.87ms. Allocated memory is still 73.4MB. Free memory was 41.5MB in the beginning and 39.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:27:13,049 INFO L158 Benchmark]: Boogie Preprocessor took 70.92ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 37.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:27:13,049 INFO L158 Benchmark]: RCFGBuilder took 653.51ms. Allocated memory is still 73.4MB. Free memory was 37.5MB in the beginning and 45.5MB in the end (delta: -8.0MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-11-23 17:27:13,050 INFO L158 Benchmark]: TraceAbstraction took 450.06ms. Allocated memory is still 73.4MB. Free memory was 44.9MB in the beginning and 36.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:27:13,053 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 73.4MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 709.71ms. Allocated memory is still 73.4MB. Free memory was 37.1MB in the beginning and 41.7MB in the end (delta: -4.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.87ms. Allocated memory is still 73.4MB. Free memory was 41.5MB in the beginning and 39.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.92ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 37.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 653.51ms. Allocated memory is still 73.4MB. Free memory was 37.5MB in the beginning and 45.5MB in the end (delta: -8.0MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * TraceAbstraction took 450.06ms. Allocated memory is still 73.4MB. Free memory was 44.9MB in the beginning and 36.1MB in the end (delta: 8.8MB). 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 17:27:13,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f6cad0-5b32-439e-8dcc-8f4d508e61ab/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