./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product46.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_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/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_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/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_d170010c-81c9-4256-9313-19fe5da90477/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 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:10:38,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:10:38,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:10:38,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:10:38,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:10:38,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:10:38,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:10:38,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:10:38,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:10:38,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:10:38,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:10:38,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:10:38,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:10:38,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:10:38,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:10:39,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:10:39,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:10:39,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:10:39,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:10:39,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:10:39,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:10:39,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:10:39,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:10:39,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:10:39,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:10:39,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:10:39,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:10:39,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:10:39,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:10:39,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:10:39,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:10:39,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:10:39,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:10:39,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:10:39,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:10:39,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:10:39,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:10:39,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:10:39,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:10:39,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:10:39,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:10:39,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:10:39,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:10:39,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:10:39,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:10:39,059 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:10:39,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:10:39,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:10:39,060 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:10:39,061 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:10:39,061 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:10:39,061 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:10:39,061 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:10:39,061 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:10:39,062 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:10:39,062 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:10:39,062 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:10:39,062 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:10:39,062 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:10:39,063 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:10:39,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:10:39,064 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:10:39,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:10:39,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:10:39,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:10:39,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:10:39,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:10:39,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:10:39,065 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:10:39,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:10:39,065 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:10:39,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:10:39,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:10:39,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:10:39,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:39,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:10:39,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:10:39,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:10:39,067 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:10:39,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:10:39,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:10:39,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:10:39,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:10:39,068 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_d170010c-81c9-4256-9313-19fe5da90477/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d [2021-11-23 17:10:39,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:10:39,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:10:39,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:10:39,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:10:39,337 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:10:39,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2021-11-23 17:10:39,405 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/data/2b911ad4c/db969a2c9a524149be6b2ac3a2b63ede/FLAG62870505d [2021-11-23 17:10:40,016 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:10:40,017 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2021-11-23 17:10:40,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/data/2b911ad4c/db969a2c9a524149be6b2ac3a2b63ede/FLAG62870505d [2021-11-23 17:10:40,288 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/data/2b911ad4c/db969a2c9a524149be6b2ac3a2b63ede [2021-11-23 17:10:40,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:10:40,292 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:10:40,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:40,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:10:40,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:10:40,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:40" (1/1) ... [2021-11-23 17:10:40,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7484ad59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:40, skipping insertion in model container [2021-11-23 17:10:40,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:40" (1/1) ... [2021-11-23 17:10:40,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:10:40,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:10:40,710 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_d170010c-81c9-4256-9313-19fe5da90477/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c[17174,17187] [2021-11-23 17:10:40,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:40,750 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:10:40,887 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_d170010c-81c9-4256-9313-19fe5da90477/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c[17174,17187] [2021-11-23 17:10:40,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:40,916 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:10:40,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:40 WrapperNode [2021-11-23 17:10:40,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:40,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:40,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:10:40,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:10:40,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:40" (1/1) ... [2021-11-23 17:10:40,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:40" (1/1) ... [2021-11-23 17:10:40,985 INFO L137 Inliner]: procedures = 56, calls = 157, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 249 [2021-11-23 17:10:40,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:40,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:10:40,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:10:40,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:10:40,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:40" (1/1) ... [2021-11-23 17:10:40,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:40" (1/1) ... [2021-11-23 17:10:41,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:40" (1/1) ... [2021-11-23 17:10:41,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:40" (1/1) ... [2021-11-23 17:10:41,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:40" (1/1) ... [2021-11-23 17:10:41,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:40" (1/1) ... [2021-11-23 17:10:41,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:40" (1/1) ... [2021-11-23 17:10:41,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:10:41,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:10:41,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:10:41,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:10:41,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:40" (1/1) ... [2021-11-23 17:10:41,063 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:41,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:10:41,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:10:41,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:10:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:10:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 17:10:41,161 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 17:10:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 17:10:41,161 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 17:10:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 17:10:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 17:10:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-23 17:10:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-23 17:10:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 17:10:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 17:10:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 17:10:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 17:10:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-23 17:10:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-23 17:10:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:10:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 17:10:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 17:10:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:10:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:10:41,308 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:10:41,310 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:10:41,674 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:10:41,722 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 17:10:41,728 INFO L158 Benchmark]: Toolchain (without parser) took 1434.76ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 61.5MB in the beginning and 69.0MB in the end (delta: -7.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2021-11-23 17:10:41,729 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 94.4MB. Free memory was 46.7MB in the beginning and 46.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:10:41,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 621.80ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 61.5MB in the beginning and 91.6MB in the end (delta: -30.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:10:41,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.91ms. Allocated memory is still 123.7MB. Free memory was 91.6MB in the beginning and 89.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:10:41,734 INFO L158 Benchmark]: Boogie Preprocessor took 57.99ms. Allocated memory is still 123.7MB. Free memory was 89.0MB in the beginning and 87.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:10:41,735 INFO L158 Benchmark]: RCFGBuilder took 680.65ms. Allocated memory is still 123.7MB. Free memory was 87.4MB in the beginning and 69.0MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 17:10:41,743 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 94.4MB. Free memory was 46.7MB in the beginning and 46.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 621.80ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 61.5MB in the beginning and 91.6MB in the end (delta: -30.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.91ms. Allocated memory is still 123.7MB. Free memory was 91.6MB in the beginning and 89.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.99ms. Allocated memory is still 123.7MB. Free memory was 89.0MB in the beginning and 87.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 680.65ms. Allocated memory is still 123.7MB. Free memory was 87.4MB in the beginning and 69.0MB in the end (delta: 18.4MB). 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 17:10:41,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/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_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/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_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/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_d170010c-81c9-4256-9313-19fe5da90477/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 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:10:44,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:10:44,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:10:44,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:10:44,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:10:44,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:10:44,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:10:44,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:10:44,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:10:44,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:10:44,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:10:44,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:10:44,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:10:44,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:10:44,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:10:44,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:10:44,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:10:44,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:10:44,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:10:44,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:10:44,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:10:44,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:10:44,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:10:44,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:10:44,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:10:44,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:10:44,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:10:44,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:10:44,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:10:44,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:10:44,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:10:44,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:10:44,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:10:44,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:10:44,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:10:44,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:10:44,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:10:44,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:10:44,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:10:44,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:10:44,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:10:44,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:10:44,697 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:10:44,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:10:44,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:10:44,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:10:44,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:10:44,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:10:44,700 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:10:44,700 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:10:44,700 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:10:44,700 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:10:44,702 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:10:44,702 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:10:44,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:10:44,704 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:10:44,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:10:44,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:10:44,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:10:44,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:10:44,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:10:44,706 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:10:44,706 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:10:44,706 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:10:44,706 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:10:44,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:10:44,707 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:10:44,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:10:44,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:10:44,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:10:44,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:10:44,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:44,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:10:44,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:10:44,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:10:44,709 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:10:44,710 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:10:44,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:10:44,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:10:44,710 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:10:44,711 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_d170010c-81c9-4256-9313-19fe5da90477/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02fb1fa00f2030f7900be70496baf2f4c44344da378fa11ef09f1f26dc14ae9d [2021-11-23 17:10:45,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:10:45,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:10:45,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:10:45,132 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:10:45,133 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:10:45,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2021-11-23 17:10:45,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/data/9b4fabbc6/c54217adfb674d53b6e99928b9b465d7/FLAG0eb7e9db2 [2021-11-23 17:10:45,946 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:10:45,957 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c [2021-11-23 17:10:45,978 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/data/9b4fabbc6/c54217adfb674d53b6e99928b9b465d7/FLAG0eb7e9db2 [2021-11-23 17:10:46,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/data/9b4fabbc6/c54217adfb674d53b6e99928b9b465d7 [2021-11-23 17:10:46,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:10:46,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:10:46,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:46,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:10:46,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:10:46,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:46" (1/1) ... [2021-11-23 17:10:46,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d1318e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:46, skipping insertion in model container [2021-11-23 17:10:46,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:46" (1/1) ... [2021-11-23 17:10:46,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:10:46,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:10:46,703 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_d170010c-81c9-4256-9313-19fe5da90477/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c[17174,17187] [2021-11-23 17:10:46,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:46,741 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 17:10:46,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:10:46,898 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_d170010c-81c9-4256-9313-19fe5da90477/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c[17174,17187] [2021-11-23 17:10:46,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:46,916 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:10:47,028 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_d170010c-81c9-4256-9313-19fe5da90477/sv-benchmarks/c/product-lines/minepump_spec2_product46.cil.c[17174,17187] [2021-11-23 17:10:47,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:47,062 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:10:47,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:47 WrapperNode [2021-11-23 17:10:47,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:47,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:47,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:10:47,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:10:47,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:47" (1/1) ... [2021-11-23 17:10:47,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:47" (1/1) ... [2021-11-23 17:10:47,152 INFO L137 Inliner]: procedures = 58, calls = 157, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 238 [2021-11-23 17:10:47,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:47,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:10:47,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:10:47,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:10:47,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:47" (1/1) ... [2021-11-23 17:10:47,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:47" (1/1) ... [2021-11-23 17:10:47,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:47" (1/1) ... [2021-11-23 17:10:47,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:47" (1/1) ... [2021-11-23 17:10:47,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:47" (1/1) ... [2021-11-23 17:10:47,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:47" (1/1) ... [2021-11-23 17:10:47,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:47" (1/1) ... [2021-11-23 17:10:47,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:10:47,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:10:47,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:10:47,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:10:47,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:47" (1/1) ... [2021-11-23 17:10:47,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:47,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:10:47,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:10:47,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:10:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:10:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 17:10:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 17:10:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 17:10:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 17:10:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 17:10:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 17:10:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-23 17:10:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-23 17:10:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 17:10:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 17:10:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:10:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 17:10:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 17:10:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-23 17:10:47,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-23 17:10:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 17:10:47,348 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 17:10:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:10:47,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:10:47,484 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:10:47,486 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:10:47,929 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:10:47,938 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:10:47,938 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 17:10:47,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:10:47 BoogieIcfgContainer [2021-11-23 17:10:47,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:10:47,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:10:47,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:10:47,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:10:47,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:10:46" (1/3) ... [2021-11-23 17:10:47,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c08906f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:10:47, skipping insertion in model container [2021-11-23 17:10:47,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:47" (2/3) ... [2021-11-23 17:10:47,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c08906f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:10:47, skipping insertion in model container [2021-11-23 17:10:47,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:10:47" (3/3) ... [2021-11-23 17:10:47,949 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2021-11-23 17:10:47,955 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:10:47,955 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:10:48,008 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:10:48,015 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 17:10:48,015 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:10:48,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 72 states have (on average 1.375) internal successors, (99), 80 states have internal predecessors, (99), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 17:10:48,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 17:10:48,043 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:10:48,044 INFO L514 BasicCegarLoop]: trace histogram [1, 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 17:10:48,044 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:10:48,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:10:48,049 INFO L85 PathProgramCache]: Analyzing trace with hash 92222794, now seen corresponding path program 1 times [2021-11-23 17:10:48,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:10:48,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39771644] [2021-11-23 17:10:48,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:10:48,066 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:10:48,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:10:48,070 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:10:48,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:10:48,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:10:48,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:10:48,331 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 17:10:48,336 INFO L158 Benchmark]: Toolchain (without parser) took 2138.81ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 37.6MB in the beginning and 33.4MB in the end (delta: 4.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2021-11-23 17:10:48,336 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 58.7MB. Free memory is still 40.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:10:48,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 866.06ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 26.9MB in the end (delta: 10.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:10:48,338 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.30ms. Allocated memory is still 58.7MB. Free memory was 26.9MB in the beginning and 24.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:10:48,338 INFO L158 Benchmark]: Boogie Preprocessor took 69.19ms. Allocated memory is still 58.7MB. Free memory was 24.5MB in the beginning and 22.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:10:48,339 INFO L158 Benchmark]: RCFGBuilder took 717.25ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 22.8MB in the beginning and 42.8MB in the end (delta: -20.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2021-11-23 17:10:48,340 INFO L158 Benchmark]: TraceAbstraction took 391.57ms. Allocated memory is still 75.5MB. Free memory was 42.5MB in the beginning and 33.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:10:48,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 58.7MB. Free memory is still 40.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 866.06ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 26.9MB in the end (delta: 10.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.30ms. Allocated memory is still 58.7MB. Free memory was 26.9MB in the beginning and 24.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.19ms. Allocated memory is still 58.7MB. Free memory was 24.5MB in the beginning and 22.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 717.25ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 22.8MB in the beginning and 42.8MB in the end (delta: -20.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * TraceAbstraction took 391.57ms. Allocated memory is still 75.5MB. Free memory was 42.5MB in the beginning and 33.4MB in the end (delta: 9.0MB). 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 17:10:48,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d170010c-81c9-4256-9313-19fe5da90477/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