./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.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_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/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_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/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_d4082030-bf9e-460d-8647-fe6e3855bfc5/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 9a3827b4b3d19f95c620af38f0e4f5ff9ca95e734fa5646c78162250800aed09 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:34:12,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:34:12,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:34:12,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:34:12,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:34:12,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:34:12,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:34:12,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:34:12,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:34:12,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:34:12,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:34:12,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:34:12,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:34:12,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:34:12,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:34:12,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:34:12,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:34:12,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:34:12,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:34:12,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:34:12,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:34:12,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:34:12,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:34:12,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:34:12,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:34:12,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:34:12,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:34:12,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:34:12,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:34:12,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:34:12,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:34:12,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:34:12,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:34:12,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:34:12,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:34:12,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:34:12,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:34:12,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:34:12,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:34:12,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:34:12,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:34:12,868 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:34:12,910 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:34:12,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:34:12,911 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:34:12,911 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:34:12,912 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:34:12,913 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:34:12,913 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:34:12,913 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:34:12,913 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:34:12,913 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:34:12,914 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:34:12,915 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:34:12,915 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:34:12,915 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:34:12,915 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:34:12,916 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:34:12,916 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:34:12,916 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:34:12,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:34:12,917 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:34:12,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:34:12,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:34:12,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:34:12,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:34:12,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:34:12,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:34:12,920 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:34:12,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:34:12,920 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:34:12,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:34:12,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:34:12,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:34:12,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:34:12,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:34:12,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:34:12,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:34:12,922 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:34:12,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:34:12,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:34:12,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:34:12,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:34:12,923 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_d4082030-bf9e-460d-8647-fe6e3855bfc5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a3827b4b3d19f95c620af38f0e4f5ff9ca95e734fa5646c78162250800aed09 [2021-11-23 17:34:13,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:34:13,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:34:13,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:34:13,325 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:34:13,327 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:34:13,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2021-11-23 17:34:13,388 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/data/50caa8ea4/fefa1dc20e7d4e629b5845440eca8053/FLAG48fd3bdd3 [2021-11-23 17:34:13,885 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:34:13,886 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2021-11-23 17:34:13,908 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/data/50caa8ea4/fefa1dc20e7d4e629b5845440eca8053/FLAG48fd3bdd3 [2021-11-23 17:34:14,226 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/data/50caa8ea4/fefa1dc20e7d4e629b5845440eca8053 [2021-11-23 17:34:14,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:34:14,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:34:14,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:34:14,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:34:14,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:34:14,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:34:14" (1/1) ... [2021-11-23 17:34:14,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@341547a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:14, skipping insertion in model container [2021-11-23 17:34:14,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:34:14" (1/1) ... [2021-11-23 17:34:14,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:34:14,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:34:14,701 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_d4082030-bf9e-460d-8647-fe6e3855bfc5/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c[17176,17189] [2021-11-23 17:34:14,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:14,717 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:34:14,789 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_d4082030-bf9e-460d-8647-fe6e3855bfc5/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c[17176,17189] [2021-11-23 17:34:14,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:14,829 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:34:14,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:14 WrapperNode [2021-11-23 17:34:14,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:34:14,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:14,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:34:14,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:34:14,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:14" (1/1) ... [2021-11-23 17:34:14,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:14" (1/1) ... [2021-11-23 17:34:14,900 INFO L137 Inliner]: procedures = 52, calls = 153, calls flagged for inlining = 19, calls inlined = 15, statements flattened = 207 [2021-11-23 17:34:14,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:14,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:34:14,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:34:14,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:34:14,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:14" (1/1) ... [2021-11-23 17:34:14,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:14" (1/1) ... [2021-11-23 17:34:14,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:14" (1/1) ... [2021-11-23 17:34:14,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:14" (1/1) ... [2021-11-23 17:34:14,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:14" (1/1) ... [2021-11-23 17:34:14,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:14" (1/1) ... [2021-11-23 17:34:14,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:14" (1/1) ... [2021-11-23 17:34:14,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:34:14,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:34:14,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:34:14,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:34:14,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:14" (1/1) ... [2021-11-23 17:34:14,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:34:14,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:34:14,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:34:15,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:34:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:34:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 17:34:15,040 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 17:34:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-23 17:34:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-23 17:34:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 17:34:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 17:34:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 17:34:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 17:34:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 17:34:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 17:34:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-23 17:34:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-23 17:34:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 17:34:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 17:34:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:34:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 17:34:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 17:34:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:34:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:34:15,143 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:34:15,144 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:34:15,430 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:34:15,510 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 17:34:15,515 INFO L158 Benchmark]: Toolchain (without parser) took 1281.60ms. Allocated memory is still 119.5MB. Free memory was 78.8MB in the beginning and 64.5MB in the end (delta: 14.3MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2021-11-23 17:34:15,515 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:34:15,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 593.34ms. Allocated memory is still 119.5MB. Free memory was 78.6MB in the beginning and 86.1MB in the end (delta: -7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:34:15,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.81ms. Allocated memory is still 119.5MB. Free memory was 86.1MB in the beginning and 83.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:34:15,518 INFO L158 Benchmark]: Boogie Preprocessor took 38.79ms. Allocated memory is still 119.5MB. Free memory was 83.7MB in the beginning and 82.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:34:15,519 INFO L158 Benchmark]: RCFGBuilder took 562.11ms. Allocated memory is still 119.5MB. Free memory was 82.1MB in the beginning and 64.5MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 17:34:15,522 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 593.34ms. Allocated memory is still 119.5MB. Free memory was 78.6MB in the beginning and 86.1MB in the end (delta: -7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.81ms. Allocated memory is still 119.5MB. Free memory was 86.1MB in the beginning and 83.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.79ms. Allocated memory is still 119.5MB. Free memory was 83.7MB in the beginning and 82.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 562.11ms. Allocated memory is still 119.5MB. Free memory was 82.1MB in the beginning and 64.5MB in the end (delta: 17.6MB). 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 17:34:15,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/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_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/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_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/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_d4082030-bf9e-460d-8647-fe6e3855bfc5/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 9a3827b4b3d19f95c620af38f0e4f5ff9ca95e734fa5646c78162250800aed09 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:34:18,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:34:18,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:34:18,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:34:18,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:34:18,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:34:18,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:34:18,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:34:18,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:34:18,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:34:18,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:34:18,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:34:18,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:34:18,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:34:18,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:34:18,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:34:18,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:34:18,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:34:18,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:34:18,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:34:18,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:34:18,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:34:18,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:34:18,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:34:18,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:34:18,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:34:18,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:34:18,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:34:18,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:34:18,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:34:18,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:34:18,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:34:18,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:34:18,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:34:18,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:34:18,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:34:18,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:34:18,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:34:18,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:34:18,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:34:18,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:34:18,158 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:34:18,212 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:34:18,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:34:18,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:34:18,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:34:18,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:34:18,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:34:18,214 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:34:18,214 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:34:18,215 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:34:18,215 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:34:18,215 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:34:18,215 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:34:18,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:34:18,216 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:34:18,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:34:18,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:34:18,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:34:18,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:34:18,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:34:18,218 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:34:18,218 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:34:18,218 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:34:18,218 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:34:18,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:34:18,219 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:34:18,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:34:18,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:34:18,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:34:18,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:34:18,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:34:18,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:34:18,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:34:18,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:34:18,221 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:34:18,221 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:34:18,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:34:18,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:34:18,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:34:18,222 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_d4082030-bf9e-460d-8647-fe6e3855bfc5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a3827b4b3d19f95c620af38f0e4f5ff9ca95e734fa5646c78162250800aed09 [2021-11-23 17:34:18,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:34:18,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:34:18,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:34:18,630 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:34:18,630 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:34:18,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2021-11-23 17:34:18,699 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/data/88c442841/6531bcaa24ca4feb8fca08d4464bb983/FLAG7d3a1560f [2021-11-23 17:34:19,269 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:34:19,272 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2021-11-23 17:34:19,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/data/88c442841/6531bcaa24ca4feb8fca08d4464bb983/FLAG7d3a1560f [2021-11-23 17:34:19,591 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/data/88c442841/6531bcaa24ca4feb8fca08d4464bb983 [2021-11-23 17:34:19,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:34:19,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:34:19,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:34:19,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:34:19,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:34:19,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:34:19" (1/1) ... [2021-11-23 17:34:19,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42aa8898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:19, skipping insertion in model container [2021-11-23 17:34:19,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:34:19" (1/1) ... [2021-11-23 17:34:19,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:34:19,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:34:20,045 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_d4082030-bf9e-460d-8647-fe6e3855bfc5/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c[17176,17189] [2021-11-23 17:34:20,051 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:20,074 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 17:34:20,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:34:20,204 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_d4082030-bf9e-460d-8647-fe6e3855bfc5/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c[17176,17189] [2021-11-23 17:34:20,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:20,216 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:34:20,303 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_d4082030-bf9e-460d-8647-fe6e3855bfc5/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c[17176,17189] [2021-11-23 17:34:20,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:20,333 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:34:20,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20 WrapperNode [2021-11-23 17:34:20,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:34:20,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:20,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:34:20,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:34:20,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,423 INFO L137 Inliner]: procedures = 54, calls = 153, calls flagged for inlining = 19, calls inlined = 15, statements flattened = 198 [2021-11-23 17:34:20,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:20,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:34:20,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:34:20,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:34:20,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:34:20,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:34:20,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:34:20,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:34:20,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (1/1) ... [2021-11-23 17:34:20,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:34:20,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:34:20,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:34:20,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:34:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:34:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 17:34:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 17:34:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-23 17:34:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-23 17:34:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 17:34:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 17:34:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 17:34:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 17:34:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:34:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 17:34:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-23 17:34:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-23 17:34:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-23 17:34:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 17:34:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 17:34:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 17:34:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 17:34:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:34:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:34:20,721 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:34:20,723 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:34:21,108 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:34:21,116 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:34:21,117 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 17:34:21,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:34:21 BoogieIcfgContainer [2021-11-23 17:34:21,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:34:21,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:34:21,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:34:21,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:34:21,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:34:19" (1/3) ... [2021-11-23 17:34:21,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52106de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:34:21, skipping insertion in model container [2021-11-23 17:34:21,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:20" (2/3) ... [2021-11-23 17:34:21,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52106de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:34:21, skipping insertion in model container [2021-11-23 17:34:21,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:34:21" (3/3) ... [2021-11-23 17:34:21,135 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2021-11-23 17:34:21,141 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:34:21,141 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:34:21,197 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:34:21,204 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 17:34:21,205 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:34:21,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 69 states have internal predecessors, (85), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 17:34:21,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 17:34:21,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:34:21,236 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 17:34:21,236 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:34:21,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:34:21,243 INFO L85 PathProgramCache]: Analyzing trace with hash 541584951, now seen corresponding path program 1 times [2021-11-23 17:34:21,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:34:21,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793526283] [2021-11-23 17:34:21,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:34:21,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:34:21,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:34:21,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:34:21,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:34:21,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 17:34:21,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:34:21,523 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 17:34:21,526 INFO L158 Benchmark]: Toolchain (without parser) took 1930.11ms. Allocated memory is still 81.8MB. Free memory was 46.5MB in the beginning and 50.2MB in the end (delta: -3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:34:21,527 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 81.8MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:34:21,531 INFO L158 Benchmark]: CACSL2BoogieTranslator took 704.26ms. Allocated memory is still 81.8MB. Free memory was 67.1MB in the beginning and 51.5MB in the end (delta: 15.5MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2021-11-23 17:34:21,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.70ms. Allocated memory is still 81.8MB. Free memory was 51.3MB in the beginning and 49.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:34:21,532 INFO L158 Benchmark]: Boogie Preprocessor took 69.73ms. Allocated memory is still 81.8MB. Free memory was 49.1MB in the beginning and 47.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:34:21,533 INFO L158 Benchmark]: RCFGBuilder took 622.93ms. Allocated memory is still 81.8MB. Free memory was 47.5MB in the beginning and 59.6MB in the end (delta: -12.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-11-23 17:34:21,534 INFO L158 Benchmark]: TraceAbstraction took 398.63ms. Allocated memory is still 81.8MB. Free memory was 59.2MB in the beginning and 50.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:34:21,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 81.8MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 704.26ms. Allocated memory is still 81.8MB. Free memory was 67.1MB in the beginning and 51.5MB in the end (delta: 15.5MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.70ms. Allocated memory is still 81.8MB. Free memory was 51.3MB in the beginning and 49.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.73ms. Allocated memory is still 81.8MB. Free memory was 49.1MB in the beginning and 47.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 622.93ms. Allocated memory is still 81.8MB. Free memory was 47.5MB in the beginning and 59.6MB in the end (delta: -12.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * TraceAbstraction took 398.63ms. Allocated memory is still 81.8MB. Free memory was 59.2MB in the beginning and 50.2MB 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 17:34:21,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4082030-bf9e-460d-8647-fe6e3855bfc5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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