./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --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_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/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_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/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_4ceaa196-6af6-485d-9b10-a2047a929469/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 60cd4209446f80c263553fdb6a481b4dd4e668058f5fe80fa8786bdb8310f6e8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:48:40,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:48:40,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:48:40,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:48:40,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:48:40,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:48:40,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:48:40,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:48:40,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:48:40,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:48:40,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:48:40,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:48:40,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:48:40,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:48:40,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:48:40,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:48:40,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:48:40,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:48:40,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:48:40,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:48:40,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:48:40,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:48:40,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:48:40,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:48:40,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:48:40,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:48:40,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:48:40,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:48:40,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:48:40,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:48:40,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:48:40,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:48:40,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:48:40,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:48:40,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:48:40,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:48:40,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:48:40,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:48:40,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:48:40,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:48:40,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:48:40,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:48:40,272 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:48:40,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:48:40,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:48:40,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:48:40,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:48:40,283 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:48:40,283 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:48:40,283 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:48:40,284 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:48:40,284 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:48:40,285 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:48:40,286 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:48:40,286 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:48:40,286 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:48:40,287 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:48:40,287 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:48:40,287 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:48:40,288 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:48:40,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:48:40,289 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:48:40,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:48:40,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:48:40,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:48:40,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:48:40,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:48:40,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:48:40,291 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:48:40,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:48:40,292 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:48:40,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:48:40,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:48:40,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:48:40,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:48:40,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:48:40,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:48:40,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:48:40,294 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:48:40,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:48:40,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:48:40,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:48:40,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:48:40,296 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_4ceaa196-6af6-485d-9b10-a2047a929469/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60cd4209446f80c263553fdb6a481b4dd4e668058f5fe80fa8786bdb8310f6e8 [2021-11-23 16:48:40,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:48:40,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:48:40,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:48:40,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:48:40,669 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:48:40,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2021-11-23 16:48:40,742 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/data/692223a77/fe0fe1cf69e641c2bb52c7a2f35f01d6/FLAG9f167881f [2021-11-23 16:48:41,309 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:48:41,309 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2021-11-23 16:48:41,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/data/692223a77/fe0fe1cf69e641c2bb52c7a2f35f01d6/FLAG9f167881f [2021-11-23 16:48:41,603 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/data/692223a77/fe0fe1cf69e641c2bb52c7a2f35f01d6 [2021-11-23 16:48:41,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:48:41,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:48:41,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:48:41,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:48:41,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:48:41,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:48:41" (1/1) ... [2021-11-23 16:48:41,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1f9106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:41, skipping insertion in model container [2021-11-23 16:48:41,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:48:41" (1/1) ... [2021-11-23 16:48:41,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:48:41,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:48:41,953 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_4ceaa196-6af6-485d-9b10-a2047a929469/sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[995,1008] [2021-11-23 16:48:42,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:48:42,219 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:48:42,240 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_4ceaa196-6af6-485d-9b10-a2047a929469/sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[995,1008] [2021-11-23 16:48:42,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:48:42,415 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:48:42,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:42 WrapperNode [2021-11-23 16:48:42,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:48:42,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:48:42,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:48:42,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:48:42,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:42" (1/1) ... [2021-11-23 16:48:42,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:42" (1/1) ... [2021-11-23 16:48:42,499 INFO L137 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 161 [2021-11-23 16:48:42,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:48:42,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:48:42,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:48:42,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:48:42,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:42" (1/1) ... [2021-11-23 16:48:42,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:42" (1/1) ... [2021-11-23 16:48:42,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:42" (1/1) ... [2021-11-23 16:48:42,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:42" (1/1) ... [2021-11-23 16:48:42,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:42" (1/1) ... [2021-11-23 16:48:42,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:42" (1/1) ... [2021-11-23 16:48:42,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:42" (1/1) ... [2021-11-23 16:48:42,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:48:42,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:48:42,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:48:42,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:48:42,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:42" (1/1) ... [2021-11-23 16:48:42,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:48:42,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:48:42,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:48:42,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:48:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 16:48:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 16:48:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:48:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:48:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:48:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 16:48:42,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 16:48:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 16:48:42,691 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 16:48:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:48:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 16:48:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:48:42,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:48:42,694 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 16:48:42,948 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:48:42,950 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:48:43,689 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:48:43,825 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$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 16:48:43,831 INFO L158 Benchmark]: Toolchain (without parser) took 2217.72ms. Allocated memory is still 104.9MB. Free memory was 67.2MB in the beginning and 72.8MB in the end (delta: -5.6MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2021-11-23 16:48:43,831 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 104.9MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:48:43,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 802.61ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 68.6MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:48:43,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.70ms. Allocated memory is still 104.9MB. Free memory was 68.6MB in the beginning and 66.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:48:43,835 INFO L158 Benchmark]: Boogie Preprocessor took 96.82ms. Allocated memory is still 104.9MB. Free memory was 66.1MB in the beginning and 64.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:48:43,836 INFO L158 Benchmark]: RCFGBuilder took 1230.68ms. Allocated memory is still 104.9MB. Free memory was 64.0MB in the beginning and 72.8MB in the end (delta: -8.9MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2021-11-23 16:48:43,840 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 104.9MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 802.61ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 68.6MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.70ms. Allocated memory is still 104.9MB. Free memory was 68.6MB in the beginning and 66.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.82ms. Allocated memory is still 104.9MB. Free memory was 66.1MB in the beginning and 64.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1230.68ms. Allocated memory is still 104.9MB. Free memory was 64.0MB in the beginning and 72.8MB in the end (delta: -8.9MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:48:43,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/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_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/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_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/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_4ceaa196-6af6-485d-9b10-a2047a929469/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 60cd4209446f80c263553fdb6a481b4dd4e668058f5fe80fa8786bdb8310f6e8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:48:46,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:48:46,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:48:46,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:48:46,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:48:46,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:48:46,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:48:46,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:48:46,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:48:47,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:48:47,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:48:47,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:48:47,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:48:47,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:48:47,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:48:47,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:48:47,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:48:47,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:48:47,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:48:47,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:48:47,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:48:47,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:48:47,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:48:47,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:48:47,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:48:47,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:48:47,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:48:47,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:48:47,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:48:47,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:48:47,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:48:47,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:48:47,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:48:47,071 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:48:47,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:48:47,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:48:47,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:48:47,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:48:47,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:48:47,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:48:47,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:48:47,080 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:48:47,146 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:48:47,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:48:47,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:48:47,148 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:48:47,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:48:47,150 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:48:47,150 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:48:47,151 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:48:47,151 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:48:47,151 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:48:47,152 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:48:47,153 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:48:47,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:48:47,155 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:48:47,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:48:47,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:48:47,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:48:47,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:48:47,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:48:47,157 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:48:47,157 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:48:47,158 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:48:47,158 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:48:47,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:48:47,159 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:48:47,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:48:47,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:48:47,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:48:47,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:48:47,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:48:47,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:48:47,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:48:47,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:48:47,162 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:48:47,162 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:48:47,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:48:47,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:48:47,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:48:47,164 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_4ceaa196-6af6-485d-9b10-a2047a929469/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60cd4209446f80c263553fdb6a481b4dd4e668058f5fe80fa8786bdb8310f6e8 [2021-11-23 16:48:47,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:48:47,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:48:47,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:48:47,702 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:48:47,703 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:48:47,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2021-11-23 16:48:47,808 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/data/b0e7e6afd/b3331e89c26649b7bb9c88bef35aa7c2/FLAG2bcc36b7f [2021-11-23 16:48:48,646 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:48:48,652 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2021-11-23 16:48:48,683 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/data/b0e7e6afd/b3331e89c26649b7bb9c88bef35aa7c2/FLAG2bcc36b7f [2021-11-23 16:48:48,832 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/data/b0e7e6afd/b3331e89c26649b7bb9c88bef35aa7c2 [2021-11-23 16:48:48,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:48:48,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:48:48,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:48:48,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:48:48,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:48:48,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:48:48" (1/1) ... [2021-11-23 16:48:48,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a088cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:48, skipping insertion in model container [2021-11-23 16:48:48,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:48:48" (1/1) ... [2021-11-23 16:48:48,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:48:48,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:48:49,168 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_4ceaa196-6af6-485d-9b10-a2047a929469/sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[995,1008] [2021-11-23 16:48:49,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:48:49,597 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:48:49,614 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_4ceaa196-6af6-485d-9b10-a2047a929469/sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[995,1008] [2021-11-23 16:48:49,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:48:49,755 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:48:49,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:49 WrapperNode [2021-11-23 16:48:49,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:48:49,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:48:49,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:48:49,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:48:49,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:49" (1/1) ... [2021-11-23 16:48:49,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:49" (1/1) ... [2021-11-23 16:48:49,833 INFO L137 Inliner]: procedures = 178, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 162 [2021-11-23 16:48:49,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:48:49,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:48:49,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:48:49,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:48:49,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:49" (1/1) ... [2021-11-23 16:48:49,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:49" (1/1) ... [2021-11-23 16:48:49,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:49" (1/1) ... [2021-11-23 16:48:49,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:49" (1/1) ... [2021-11-23 16:48:49,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:49" (1/1) ... [2021-11-23 16:48:49,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:49" (1/1) ... [2021-11-23 16:48:49,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:49" (1/1) ... [2021-11-23 16:48:49,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:48:49,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:48:49,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:48:49,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:48:49,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:49" (1/1) ... [2021-11-23 16:48:49,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:48:49,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:48:49,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:48:50,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:48:50,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 16:48:50,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:48:50,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:48:50,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:48:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 16:48:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:48:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 16:48:50,060 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 16:48:50,060 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 16:48:50,061 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 16:48:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 16:48:50,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:48:50,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:48:50,063 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 16:48:50,333 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:48:50,335 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:48:51,017 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:48:51,111 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$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 16:48:51,117 INFO L158 Benchmark]: Toolchain (without parser) took 2277.83ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 31.2MB in the beginning and 43.9MB in the end (delta: -12.8MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2021-11-23 16:48:51,118 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 54.5MB. Free memory was 35.7MB in the beginning and 35.7MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:48:51,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 916.90ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 31.0MB in the beginning and 43.0MB in the end (delta: -12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:48:51,120 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.85ms. Allocated memory is still 73.4MB. Free memory was 42.8MB in the beginning and 40.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:48:51,121 INFO L158 Benchmark]: Boogie Preprocessor took 116.33ms. Allocated memory is still 73.4MB. Free memory was 40.5MB in the beginning and 55.7MB in the end (delta: -15.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-11-23 16:48:51,122 INFO L158 Benchmark]: RCFGBuilder took 1156.28ms. Allocated memory is still 73.4MB. Free memory was 55.7MB in the beginning and 43.9MB in the end (delta: 11.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 16:48:51,126 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 54.5MB. Free memory was 35.7MB in the beginning and 35.7MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 916.90ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 31.0MB in the beginning and 43.0MB in the end (delta: -12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.85ms. Allocated memory is still 73.4MB. Free memory was 42.8MB in the beginning and 40.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.33ms. Allocated memory is still 73.4MB. Free memory was 40.5MB in the beginning and 55.7MB in the end (delta: -15.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1156.28ms. Allocated memory is still 73.4MB. Free memory was 55.7MB in the beginning and 43.9MB in the end (delta: 11.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:48:51,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ceaa196-6af6-485d-9b10-a2047a929469/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