./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe001_power.oepc.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_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/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_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/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_4de84998-3f10-4e8e-af63-8f9458a98f4b/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 67d3e2c6779f32015be5c9fe966e6a739e1c762dcde7f287ad383839eb490e84 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:44:50,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:44:50,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:44:50,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:44:50,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:44:50,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:44:50,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:44:50,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:44:50,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:44:50,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:44:50,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:44:50,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:44:50,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:44:50,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:44:50,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:44:50,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:44:50,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:44:50,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:44:50,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:44:50,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:44:50,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:44:50,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:44:50,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:44:50,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:44:50,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:44:50,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:44:50,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:44:50,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:44:50,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:44:50,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:44:50,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:44:50,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:44:50,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:44:50,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:44:50,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:44:50,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:44:50,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:44:50,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:44:50,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:44:50,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:44:50,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:44:50,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:44:50,361 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:44:50,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:44:50,363 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:44:50,363 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:44:50,364 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:44:50,364 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:44:50,364 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:44:50,365 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:44:50,365 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:44:50,365 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:44:50,367 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:44:50,367 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:44:50,367 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:44:50,367 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:44:50,368 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:44:50,368 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:44:50,368 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:44:50,369 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:44:50,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:44:50,370 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:44:50,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:44:50,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:44:50,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:44:50,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:44:50,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:44:50,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:44:50,373 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:44:50,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:44:50,374 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:44:50,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:44:50,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:44:50,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:44:50,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:44:50,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:44:50,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:44:50,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:44:50,377 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:44:50,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:44:50,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:44:50,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:44:50,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:44:50,378 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_4de84998-3f10-4e8e-af63-8f9458a98f4b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67d3e2c6779f32015be5c9fe966e6a739e1c762dcde7f287ad383839eb490e84 [2021-11-23 16:44:50,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:44:50,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:44:50,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:44:50,719 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:44:50,719 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:44:50,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i [2021-11-23 16:44:50,801 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/data/68a6fe508/2d7fb4e78d83444f97500633f3165014/FLAG347c16cdb [2021-11-23 16:44:51,456 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:44:51,456 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i [2021-11-23 16:44:51,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/data/68a6fe508/2d7fb4e78d83444f97500633f3165014/FLAG347c16cdb [2021-11-23 16:44:51,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/data/68a6fe508/2d7fb4e78d83444f97500633f3165014 [2021-11-23 16:44:51,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:44:51,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:44:51,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:44:51,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:44:51,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:44:51,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:44:51" (1/1) ... [2021-11-23 16:44:51,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19778a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:51, skipping insertion in model container [2021-11-23 16:44:51,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:44:51" (1/1) ... [2021-11-23 16:44:51,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:44:51,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:44:52,034 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_4de84998-3f10-4e8e-af63-8f9458a98f4b/sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i[995,1008] [2021-11-23 16:44:52,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:44:52,440 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:44:52,458 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_4de84998-3f10-4e8e-af63-8f9458a98f4b/sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i[995,1008] [2021-11-23 16:44:52,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:44:52,619 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:44:52,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:52 WrapperNode [2021-11-23 16:44:52,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:44:52,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:44:52,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:44:52,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:44:52,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:52" (1/1) ... [2021-11-23 16:44:52,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:52" (1/1) ... [2021-11-23 16:44:52,733 INFO L137 Inliner]: procedures = 176, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 262 [2021-11-23 16:44:52,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:44:52,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:44:52,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:44:52,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:44:52,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:52" (1/1) ... [2021-11-23 16:44:52,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:52" (1/1) ... [2021-11-23 16:44:52,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:52" (1/1) ... [2021-11-23 16:44:52,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:52" (1/1) ... [2021-11-23 16:44:52,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:52" (1/1) ... [2021-11-23 16:44:52,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:52" (1/1) ... [2021-11-23 16:44:52,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:52" (1/1) ... [2021-11-23 16:44:52,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:44:52,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:44:52,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:44:52,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:44:52,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:52" (1/1) ... [2021-11-23 16:44:52,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:44:52,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:44:52,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:44:52,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:44:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 16:44:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 16:44:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 16:44:52,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:44:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:44:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:44:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 16:44:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 16:44:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 16:44:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 16:44:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 16:44:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 16:44:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:44:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 16:44:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:44:52,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:44:52,933 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 16:44:53,147 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:44:53,149 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:44:54,214 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:44:54,389 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 16:44:54,393 INFO L158 Benchmark]: Toolchain (without parser) took 2634.52ms. Allocated memory was 111.1MB in the beginning and 203.4MB in the end (delta: 92.3MB). Free memory was 81.5MB in the beginning and 132.7MB in the end (delta: -51.1MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2021-11-23 16:44:54,393 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 111.1MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:44:54,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 861.66ms. Allocated memory is still 111.1MB. Free memory was 81.3MB in the beginning and 68.5MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 16:44:54,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.66ms. Allocated memory is still 111.1MB. Free memory was 68.2MB in the beginning and 65.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:44:54,396 INFO L158 Benchmark]: Boogie Preprocessor took 87.68ms. Allocated memory is still 111.1MB. Free memory was 65.3MB in the beginning and 62.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:44:54,397 INFO L158 Benchmark]: RCFGBuilder took 1568.37ms. Allocated memory was 111.1MB in the beginning and 203.4MB in the end (delta: 92.3MB). Free memory was 62.0MB in the beginning and 132.7MB in the end (delta: -70.7MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2021-11-23 16:44:54,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 111.1MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 861.66ms. Allocated memory is still 111.1MB. Free memory was 81.3MB in the beginning and 68.5MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.66ms. Allocated memory is still 111.1MB. Free memory was 68.2MB in the beginning and 65.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.68ms. Allocated memory is still 111.1MB. Free memory was 65.3MB in the beginning and 62.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1568.37ms. Allocated memory was 111.1MB in the beginning and 203.4MB in the end (delta: 92.3MB). Free memory was 62.0MB in the beginning and 132.7MB in the end (delta: -70.7MB). Peak memory consumption was 28.1MB. 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 16:44:54,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/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_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/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_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/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_4de84998-3f10-4e8e-af63-8f9458a98f4b/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 67d3e2c6779f32015be5c9fe966e6a739e1c762dcde7f287ad383839eb490e84 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:44:56,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:44:56,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:44:56,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:44:56,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:44:56,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:44:56,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:44:56,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:44:56,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:44:57,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:44:57,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:44:57,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:44:57,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:44:57,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:44:57,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:44:57,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:44:57,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:44:57,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:44:57,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:44:57,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:44:57,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:44:57,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:44:57,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:44:57,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:44:57,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:44:57,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:44:57,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:44:57,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:44:57,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:44:57,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:44:57,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:44:57,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:44:57,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:44:57,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:44:57,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:44:57,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:44:57,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:44:57,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:44:57,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:44:57,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:44:57,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:44:57,071 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:44:57,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:44:57,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:44:57,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:44:57,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:44:57,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:44:57,121 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:44:57,121 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:44:57,121 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:44:57,122 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:44:57,122 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:44:57,123 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:44:57,123 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:44:57,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:44:57,125 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:44:57,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:44:57,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:44:57,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:44:57,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:44:57,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:44:57,127 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:44:57,127 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:44:57,127 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:44:57,128 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:44:57,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:44:57,128 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:44:57,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:44:57,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:44:57,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:44:57,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:44:57,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:44:57,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:44:57,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:44:57,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:44:57,131 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:44:57,131 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:44:57,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:44:57,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:44:57,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:44:57,132 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_4de84998-3f10-4e8e-af63-8f9458a98f4b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67d3e2c6779f32015be5c9fe966e6a739e1c762dcde7f287ad383839eb490e84 [2021-11-23 16:44:57,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:44:57,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:44:57,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:44:57,584 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:44:57,585 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:44:57,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i [2021-11-23 16:44:57,667 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/data/11c1c3c38/e211c2b97e9e4b0380f25b9c4587a878/FLAG9a87916e4 [2021-11-23 16:44:58,342 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:44:58,343 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i [2021-11-23 16:44:58,373 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/data/11c1c3c38/e211c2b97e9e4b0380f25b9c4587a878/FLAG9a87916e4 [2021-11-23 16:44:58,629 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/data/11c1c3c38/e211c2b97e9e4b0380f25b9c4587a878 [2021-11-23 16:44:58,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:44:58,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:44:58,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:44:58,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:44:58,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:44:58,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:44:58" (1/1) ... [2021-11-23 16:44:58,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779d20a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:58, skipping insertion in model container [2021-11-23 16:44:58,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:44:58" (1/1) ... [2021-11-23 16:44:58,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:44:58,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:44:58,957 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_4de84998-3f10-4e8e-af63-8f9458a98f4b/sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i[995,1008] [2021-11-23 16:44:59,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:44:59,336 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:44:59,352 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_4de84998-3f10-4e8e-af63-8f9458a98f4b/sv-benchmarks/c/pthread-wmm/safe001_power.oepc.i[995,1008] [2021-11-23 16:44:59,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:44:59,484 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:44:59,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:59 WrapperNode [2021-11-23 16:44:59,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:44:59,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:44:59,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:44:59,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:44:59,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:59" (1/1) ... [2021-11-23 16:44:59,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:59" (1/1) ... [2021-11-23 16:44:59,613 INFO L137 Inliner]: procedures = 180, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 263 [2021-11-23 16:44:59,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:44:59,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:44:59,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:44:59,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:44:59,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:59" (1/1) ... [2021-11-23 16:44:59,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:59" (1/1) ... [2021-11-23 16:44:59,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:59" (1/1) ... [2021-11-23 16:44:59,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:59" (1/1) ... [2021-11-23 16:44:59,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:59" (1/1) ... [2021-11-23 16:44:59,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:59" (1/1) ... [2021-11-23 16:44:59,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:59" (1/1) ... [2021-11-23 16:44:59,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:44:59,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:44:59,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:44:59,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:44:59,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:59" (1/1) ... [2021-11-23 16:44:59,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:44:59,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:44:59,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:44:59,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 16:44:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 16:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 16:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:44:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 16:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 16:44:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 16:44:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 16:44:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 16:44:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 16:44:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 16:44:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 16:44:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:44:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:44:59,858 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 16:45:00,150 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:45:00,152 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:45:01,118 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:45:01,281 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 16:45:01,285 INFO L158 Benchmark]: Toolchain (without parser) took 2647.30ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 44.0MB in the beginning and 57.0MB in the end (delta: -13.0MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2021-11-23 16:45:01,286 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 79.7MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 69.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:45:01,287 INFO L158 Benchmark]: CACSL2BoogieTranslator took 844.62ms. Allocated memory is still 79.7MB. Free memory was 43.8MB in the beginning and 47.7MB in the end (delta: -4.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-11-23 16:45:01,287 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.37ms. Allocated memory is still 79.7MB. Free memory was 47.7MB in the beginning and 44.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:45:01,288 INFO L158 Benchmark]: Boogie Preprocessor took 97.04ms. Allocated memory is still 79.7MB. Free memory was 44.7MB in the beginning and 41.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:45:01,289 INFO L158 Benchmark]: RCFGBuilder took 1571.23ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 41.1MB in the beginning and 57.0MB in the end (delta: -15.9MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2021-11-23 16:45:01,293 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 79.7MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 69.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 844.62ms. Allocated memory is still 79.7MB. Free memory was 43.8MB in the beginning and 47.7MB in the end (delta: -4.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.37ms. Allocated memory is still 79.7MB. Free memory was 47.7MB in the beginning and 44.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.04ms. Allocated memory is still 79.7MB. Free memory was 44.7MB in the beginning and 41.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1571.23ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 41.1MB in the beginning and 57.0MB in the end (delta: -15.9MB). Peak memory consumption was 14.0MB. 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 16:45:01,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4de84998-3f10-4e8e-af63-8f9458a98f4b/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable