./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product22.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_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/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_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/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_12762ce6-8e25-47f3-af2d-61dc3c8495d8/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 1f2870beb38cc74f17a96c393839e7d6d2f1f4f9c95ce97be38a991d6b510bc3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:46:26,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:46:26,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:46:27,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:46:27,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:46:27,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:46:27,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:46:27,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:46:27,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:46:27,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:46:27,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:46:27,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:46:27,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:46:27,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:46:27,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:46:27,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:46:27,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:46:27,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:46:27,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:46:27,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:46:27,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:46:27,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:46:27,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:46:27,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:46:27,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:46:27,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:46:27,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:46:27,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:46:27,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:46:27,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:46:27,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:46:27,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:46:27,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:46:27,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:46:27,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:46:27,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:46:27,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:46:27,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:46:27,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:46:27,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:46:27,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:46:27,080 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:46:27,106 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:46:27,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:46:27,107 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:46:27,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:46:27,108 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:46:27,109 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:46:27,109 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:46:27,109 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:46:27,110 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:46:27,110 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:46:27,110 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:46:27,111 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:46:27,111 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:46:27,115 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:46:27,115 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:46:27,116 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:46:27,116 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:46:27,116 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:46:27,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:46:27,117 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:46:27,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:46:27,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:46:27,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:46:27,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:46:27,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:46:27,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:46:27,119 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:46:27,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:46:27,120 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:46:27,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:46:27,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:46:27,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:46:27,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:27,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:46:27,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:46:27,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:46:27,123 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:46:27,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:46:27,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:46:27,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:46:27,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:46:27,124 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_12762ce6-8e25-47f3-af2d-61dc3c8495d8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f2870beb38cc74f17a96c393839e7d6d2f1f4f9c95ce97be38a991d6b510bc3 [2021-11-23 16:46:27,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:46:27,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:46:27,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:46:27,399 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:46:27,400 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:46:27,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2021-11-23 16:46:27,487 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/data/103001c44/b7e91659242b4871b065d03363e46d8c/FLAG6f749b4d3 [2021-11-23 16:46:27,968 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:46:27,968 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2021-11-23 16:46:27,983 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/data/103001c44/b7e91659242b4871b065d03363e46d8c/FLAG6f749b4d3 [2021-11-23 16:46:28,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/data/103001c44/b7e91659242b4871b065d03363e46d8c [2021-11-23 16:46:28,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:46:28,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:46:28,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:28,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:46:28,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:46:28,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:28,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26113bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28, skipping insertion in model container [2021-11-23 16:46:28,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:28,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:46:28,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:46:28,734 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_12762ce6-8e25-47f3-af2d-61dc3c8495d8/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c[18514,18527] [2021-11-23 16:46:28,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:28,752 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:46:28,879 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_12762ce6-8e25-47f3-af2d-61dc3c8495d8/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c[18514,18527] [2021-11-23 16:46:28,880 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:28,902 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:46:28,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28 WrapperNode [2021-11-23 16:46:28,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:28,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:28,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:46:28,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:46:28,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:28,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:29,011 INFO L137 Inliner]: procedures = 56, calls = 157, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 251 [2021-11-23 16:46:29,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:29,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:46:29,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:46:29,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:46:29,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:29,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:29,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:29,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:29,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:29,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:29,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:29,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:46:29,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:46:29,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:46:29,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:46:29,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:28" (1/1) ... [2021-11-23 16:46:29,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:29,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:46:29,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:46:29,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:46:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:46:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 16:46:29,147 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 16:46:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 16:46:29,147 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 16:46:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 16:46:29,148 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 16:46:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 16:46:29,148 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 16:46:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2021-11-23 16:46:29,148 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2021-11-23 16:46:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-23 16:46:29,148 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-23 16:46:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 16:46:29,149 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 16:46:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:46:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 16:46:29,149 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 16:46:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:46:29,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:46:29,223 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:46:29,225 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:46:29,565 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:46:29,618 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 16:46:29,632 INFO L158 Benchmark]: Toolchain (without parser) took 1318.71ms. Allocated memory is still 96.5MB. Free memory was 61.4MB in the beginning and 41.2MB in the end (delta: 20.2MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-11-23 16:46:29,633 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:46:29,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.94ms. Allocated memory is still 96.5MB. Free memory was 61.2MB in the beginning and 64.2MB in the end (delta: -3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:46:29,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.77ms. Allocated memory is still 96.5MB. Free memory was 63.9MB in the beginning and 61.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:46:29,636 INFO L158 Benchmark]: Boogie Preprocessor took 48.63ms. Allocated memory is still 96.5MB. Free memory was 61.4MB in the beginning and 60.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:46:29,639 INFO L158 Benchmark]: RCFGBuilder took 569.31ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 41.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 16:46:29,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.94ms. Allocated memory is still 96.5MB. Free memory was 61.2MB in the beginning and 64.2MB in the end (delta: -3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.77ms. Allocated memory is still 96.5MB. Free memory was 63.9MB in the beginning and 61.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.63ms. Allocated memory is still 96.5MB. Free memory was 61.4MB in the beginning and 60.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 569.31ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 41.2MB in the end (delta: 18.9MB). 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 16:46:29,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/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_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/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_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/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_12762ce6-8e25-47f3-af2d-61dc3c8495d8/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 1f2870beb38cc74f17a96c393839e7d6d2f1f4f9c95ce97be38a991d6b510bc3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:46:32,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:46:32,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:46:32,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:46:32,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:46:32,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:46:32,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:46:32,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:46:32,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:46:32,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:46:32,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:46:32,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:46:32,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:46:32,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:46:32,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:46:32,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:46:32,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:46:32,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:46:32,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:46:32,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:46:32,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:46:32,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:46:32,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:46:32,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:46:32,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:46:32,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:46:32,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:46:32,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:46:32,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:46:32,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:46:32,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:46:32,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:46:32,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:46:32,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:46:32,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:46:32,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:46:32,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:46:32,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:46:32,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:46:32,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:46:32,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:46:32,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:46:32,517 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:46:32,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:46:32,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:46:32,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:46:32,519 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:46:32,519 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:46:32,520 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:46:32,520 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:46:32,520 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:46:32,520 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:46:32,521 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:46:32,522 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:46:32,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:46:32,523 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:46:32,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:46:32,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:46:32,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:46:32,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:46:32,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:46:32,525 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:46:32,525 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:46:32,525 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:46:32,526 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:46:32,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:46:32,526 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:46:32,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:46:32,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:46:32,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:46:32,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:46:32,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:32,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:46:32,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:46:32,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:46:32,529 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:46:32,529 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:46:32,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:46:32,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:46:32,530 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:46:32,530 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_12762ce6-8e25-47f3-af2d-61dc3c8495d8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f2870beb38cc74f17a96c393839e7d6d2f1f4f9c95ce97be38a991d6b510bc3 [2021-11-23 16:46:32,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:46:32,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:46:32,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:46:32,958 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:46:32,958 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:46:32,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2021-11-23 16:46:33,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/data/a7f780ac1/504c08596ca84a8692179aae498aca16/FLAG884cf6959 [2021-11-23 16:46:33,679 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:46:33,680 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c [2021-11-23 16:46:33,706 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/data/a7f780ac1/504c08596ca84a8692179aae498aca16/FLAG884cf6959 [2021-11-23 16:46:33,916 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/data/a7f780ac1/504c08596ca84a8692179aae498aca16 [2021-11-23 16:46:33,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:46:33,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:46:33,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:33,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:46:33,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:46:33,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:33" (1/1) ... [2021-11-23 16:46:33,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a3cedd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:33, skipping insertion in model container [2021-11-23 16:46:33,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:33" (1/1) ... [2021-11-23 16:46:33,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:46:34,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:46:34,464 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_12762ce6-8e25-47f3-af2d-61dc3c8495d8/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c[18514,18527] [2021-11-23 16:46:34,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:34,480 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 16:46:34,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:46:34,590 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_12762ce6-8e25-47f3-af2d-61dc3c8495d8/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c[18514,18527] [2021-11-23 16:46:34,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:34,609 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:46:34,702 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_12762ce6-8e25-47f3-af2d-61dc3c8495d8/sv-benchmarks/c/product-lines/minepump_spec5_product22.cil.c[18514,18527] [2021-11-23 16:46:34,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:34,740 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:46:34,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34 WrapperNode [2021-11-23 16:46:34,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:34,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:34,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:46:34,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:46:34,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,799 INFO L137 Inliner]: procedures = 58, calls = 157, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 239 [2021-11-23 16:46:34,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:34,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:46:34,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:46:34,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:46:34,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:46:34,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:46:34,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:46:34,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:46:34,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (1/1) ... [2021-11-23 16:46:34,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:34,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:46:34,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:46:34,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:46:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:46:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 16:46:34,964 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 16:46:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 16:46:34,964 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 16:46:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 16:46:34,964 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 16:46:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 16:46:34,965 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 16:46:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2021-11-23 16:46:34,965 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2021-11-23 16:46:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:46:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-23 16:46:34,965 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-23 16:46:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 16:46:34,966 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 16:46:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 16:46:34,966 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 16:46:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:46:34,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:46:35,088 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:46:35,090 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:46:35,610 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:46:35,619 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:46:35,634 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 16:46:35,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:46:35 BoogieIcfgContainer [2021-11-23 16:46:35,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:46:35,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:46:35,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:46:35,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:46:35,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:46:33" (1/3) ... [2021-11-23 16:46:35,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f4f67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:46:35, skipping insertion in model container [2021-11-23 16:46:35,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:34" (2/3) ... [2021-11-23 16:46:35,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f4f67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:46:35, skipping insertion in model container [2021-11-23 16:46:35,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:46:35" (3/3) ... [2021-11-23 16:46:35,651 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product22.cil.c [2021-11-23 16:46:35,658 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:46:35,658 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:46:35,740 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:46:35,752 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 16:46:35,752 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:46:35,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 77 states have internal predecessors, (94), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 16:46:35,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 16:46:35,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:46:35,810 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 16:46:35,811 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:46:35,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:46:35,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1350220420, now seen corresponding path program 1 times [2021-11-23 16:46:35,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:46:35,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788120792] [2021-11-23 16:46:35,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:46:35,842 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:46:35,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:46:35,847 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:46:35,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:46:35,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 16:46:36,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:46:36,125 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 16:46:36,133 INFO L158 Benchmark]: Toolchain (without parser) took 2207.63ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 45.6MB in the beginning and 44.7MB in the end (delta: 920.6kB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2021-11-23 16:46:36,134 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 67.1MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:46:36,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 815.42ms. Allocated memory is still 67.1MB. Free memory was 45.4MB in the beginning and 34.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:46:36,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.78ms. Allocated memory is still 67.1MB. Free memory was 34.2MB in the beginning and 31.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:46:36,138 INFO L158 Benchmark]: Boogie Preprocessor took 82.63ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 31.7MB in the beginning and 70.5MB in the end (delta: -38.8MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2021-11-23 16:46:36,139 INFO L158 Benchmark]: RCFGBuilder took 753.31ms. Allocated memory is still 88.1MB. Free memory was 70.5MB in the beginning and 54.6MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 16:46:36,144 INFO L158 Benchmark]: TraceAbstraction took 491.02ms. Allocated memory is still 88.1MB. Free memory was 54.1MB in the beginning and 44.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:46:36,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 67.1MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 815.42ms. Allocated memory is still 67.1MB. Free memory was 45.4MB in the beginning and 34.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.78ms. Allocated memory is still 67.1MB. Free memory was 34.2MB in the beginning and 31.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.63ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 31.7MB in the beginning and 70.5MB in the end (delta: -38.8MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * RCFGBuilder took 753.31ms. Allocated memory is still 88.1MB. Free memory was 70.5MB in the beginning and 54.6MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 491.02ms. Allocated memory is still 88.1MB. Free memory was 54.1MB in the beginning and 44.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:46:36,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12762ce6-8e25-47f3-af2d-61dc3c8495d8/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