./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe028_power.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_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/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_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe028_power.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/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_59c79479-824e-4d8e-9e15-63f72c80a463/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 0d78821bc3a287b999f98be361d707254bd2fa61b63b525cf42d392168336d80 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:37:24,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:37:24,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:37:24,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:37:24,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:37:24,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:37:24,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:37:24,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:37:24,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:37:24,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:37:24,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:37:24,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:37:24,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:37:24,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:37:24,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:37:24,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:37:24,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:37:24,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:37:24,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:37:24,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:37:24,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:37:24,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:37:24,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:37:24,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:37:24,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:37:24,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:37:24,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:37:24,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:37:24,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:37:24,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:37:24,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:37:24,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:37:24,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:37:24,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:37:24,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:37:24,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:37:24,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:37:24,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:37:24,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:37:24,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:37:24,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:37:24,747 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:37:24,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:37:24,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:37:24,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:37:24,808 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:37:24,809 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:37:24,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:37:24,818 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:37:24,818 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:37:24,818 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:37:24,819 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:37:24,820 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:37:24,821 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:37:24,821 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:37:24,821 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:37:24,821 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:37:24,822 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:37:24,822 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:37:24,822 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:37:24,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:37:24,824 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:37:24,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:37:24,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:37:24,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:37:24,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:37:24,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:37:24,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:37:24,828 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:37:24,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:37:24,829 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:37:24,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:37:24,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:37:24,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:37:24,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:37:24,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:37:24,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:37:24,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:37:24,831 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:37:24,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:37:24,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:37:24,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:37:24,832 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:37:24,833 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_59c79479-824e-4d8e-9e15-63f72c80a463/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d78821bc3a287b999f98be361d707254bd2fa61b63b525cf42d392168336d80 [2021-11-23 17:37:25,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:37:25,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:37:25,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:37:25,227 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:37:25,228 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:37:25,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/safe028_power.i [2021-11-23 17:37:25,322 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/data/9e973dafc/9c2f79303e4847feac924e0da2e51260/FLAG6850fb9bf [2021-11-23 17:37:26,029 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:37:26,029 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/sv-benchmarks/c/pthread-wmm/safe028_power.i [2021-11-23 17:37:26,069 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/data/9e973dafc/9c2f79303e4847feac924e0da2e51260/FLAG6850fb9bf [2021-11-23 17:37:26,250 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/data/9e973dafc/9c2f79303e4847feac924e0da2e51260 [2021-11-23 17:37:26,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:37:26,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:37:26,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:37:26,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:37:26,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:37:26,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:37:26" (1/1) ... [2021-11-23 17:37:26,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7705a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:26, skipping insertion in model container [2021-11-23 17:37:26,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:37:26" (1/1) ... [2021-11-23 17:37:26,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:37:26,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:37:26,651 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_59c79479-824e-4d8e-9e15-63f72c80a463/sv-benchmarks/c/pthread-wmm/safe028_power.i[990,1003] [2021-11-23 17:37:26,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:37:26,943 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:37:26,956 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_59c79479-824e-4d8e-9e15-63f72c80a463/sv-benchmarks/c/pthread-wmm/safe028_power.i[990,1003] [2021-11-23 17:37:27,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:37:27,126 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:37:27,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:27 WrapperNode [2021-11-23 17:37:27,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:37:27,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:37:27,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:37:27,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:37:27,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:27" (1/1) ... [2021-11-23 17:37:27,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:27" (1/1) ... [2021-11-23 17:37:27,251 INFO L137 Inliner]: procedures = 176, calls = 77, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 209 [2021-11-23 17:37:27,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:37:27,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:37:27,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:37:27,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:37:27,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:27" (1/1) ... [2021-11-23 17:37:27,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:27" (1/1) ... [2021-11-23 17:37:27,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:27" (1/1) ... [2021-11-23 17:37:27,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:27" (1/1) ... [2021-11-23 17:37:27,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:27" (1/1) ... [2021-11-23 17:37:27,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:27" (1/1) ... [2021-11-23 17:37:27,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:27" (1/1) ... [2021-11-23 17:37:27,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:37:27,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:37:27,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:37:27,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:37:27,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:27" (1/1) ... [2021-11-23 17:37:27,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:37:27,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:37:27,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:37:27,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:37:27,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:37:27,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:37:27,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:37:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:37:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:37:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:37:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 17:37:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 17:37:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 17:37:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 17:37:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 17:37:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 17:37:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:37:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:37:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:37:27,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:37:27,473 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 17:37:27,691 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:37:27,693 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:37:28,798 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:37:29,034 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 17:37:29,042 INFO L158 Benchmark]: Toolchain (without parser) took 2782.86ms. Allocated memory was 102.8MB in the beginning and 132.1MB in the end (delta: 29.4MB). Free memory was 60.9MB in the beginning and 75.2MB in the end (delta: -14.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2021-11-23 17:37:29,044 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 102.8MB. Free memory was 79.3MB in the beginning and 79.3MB in the end (delta: 46.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:37:29,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 869.83ms. Allocated memory is still 102.8MB. Free memory was 60.7MB in the beginning and 62.2MB in the end (delta: -1.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:37:29,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 130.06ms. Allocated memory is still 102.8MB. Free memory was 62.2MB in the beginning and 59.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:37:29,049 INFO L158 Benchmark]: Boogie Preprocessor took 120.33ms. Allocated memory is still 102.8MB. Free memory was 59.4MB in the beginning and 56.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:37:29,050 INFO L158 Benchmark]: RCFGBuilder took 1656.90ms. Allocated memory was 102.8MB in the beginning and 132.1MB in the end (delta: 29.4MB). Free memory was 56.5MB in the beginning and 75.2MB in the end (delta: -18.8MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2021-11-23 17:37:29,063 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 102.8MB. Free memory was 79.3MB in the beginning and 79.3MB in the end (delta: 46.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 869.83ms. Allocated memory is still 102.8MB. Free memory was 60.7MB in the beginning and 62.2MB in the end (delta: -1.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 130.06ms. Allocated memory is still 102.8MB. Free memory was 62.2MB in the beginning and 59.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 120.33ms. Allocated memory is still 102.8MB. Free memory was 59.4MB in the beginning and 56.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1656.90ms. Allocated memory was 102.8MB in the beginning and 132.1MB in the end (delta: 29.4MB). Free memory was 56.5MB in the beginning and 75.2MB in the end (delta: -18.8MB). Peak memory consumption was 30.1MB. 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 17:37:29,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/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 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_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/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_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe028_power.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/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_59c79479-824e-4d8e-9e15-63f72c80a463/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 0d78821bc3a287b999f98be361d707254bd2fa61b63b525cf42d392168336d80 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:37:32,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:37:32,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:37:32,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:37:32,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:37:32,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:37:32,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:37:32,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:37:32,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:37:32,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:37:32,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:37:32,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:37:32,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:37:32,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:37:32,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:37:32,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:37:32,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:37:32,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:37:32,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:37:32,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:37:32,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:37:32,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:37:32,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:37:32,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:37:32,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:37:32,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:37:32,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:37:32,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:37:32,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:37:32,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:37:32,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:37:32,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:37:32,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:37:32,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:37:32,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:37:32,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:37:32,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:37:32,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:37:32,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:37:32,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:37:32,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:37:32,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:37:32,371 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:37:32,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:37:32,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:37:32,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:37:32,374 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:37:32,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:37:32,375 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:37:32,375 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:37:32,376 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:37:32,376 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:37:32,377 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:37:32,377 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:37:32,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:37:32,378 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:37:32,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:37:32,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:37:32,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:37:32,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:37:32,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:37:32,379 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:37:32,380 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:37:32,380 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:37:32,380 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:37:32,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:37:32,380 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:37:32,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:37:32,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:37:32,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:37:32,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:37:32,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:37:32,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:37:32,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:37:32,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:37:32,382 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:37:32,382 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:37:32,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:37:32,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:37:32,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:37:32,383 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_59c79479-824e-4d8e-9e15-63f72c80a463/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d78821bc3a287b999f98be361d707254bd2fa61b63b525cf42d392168336d80 [2021-11-23 17:37:32,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:37:32,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:37:32,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:37:32,945 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:37:32,946 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:37:32,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/safe028_power.i [2021-11-23 17:37:33,029 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/data/f21a6151a/659d21374dfc4e978a9033a56836d3c2/FLAG2ff242f4e [2021-11-23 17:37:33,822 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:37:33,823 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/sv-benchmarks/c/pthread-wmm/safe028_power.i [2021-11-23 17:37:33,847 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/data/f21a6151a/659d21374dfc4e978a9033a56836d3c2/FLAG2ff242f4e [2021-11-23 17:37:34,055 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/data/f21a6151a/659d21374dfc4e978a9033a56836d3c2 [2021-11-23 17:37:34,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:37:34,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:37:34,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:37:34,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:37:34,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:37:34,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:37:34" (1/1) ... [2021-11-23 17:37:34,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39bc5c3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:34, skipping insertion in model container [2021-11-23 17:37:34,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:37:34" (1/1) ... [2021-11-23 17:37:34,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:37:34,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:37:34,339 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_59c79479-824e-4d8e-9e15-63f72c80a463/sv-benchmarks/c/pthread-wmm/safe028_power.i[990,1003] [2021-11-23 17:37:34,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:37:34,712 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:37:34,749 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_59c79479-824e-4d8e-9e15-63f72c80a463/sv-benchmarks/c/pthread-wmm/safe028_power.i[990,1003] [2021-11-23 17:37:34,807 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:37:34,871 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:37:34,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:34 WrapperNode [2021-11-23 17:37:34,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:37:34,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:37:34,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:37:34,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:37:34,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:34" (1/1) ... [2021-11-23 17:37:34,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:34" (1/1) ... [2021-11-23 17:37:34,982 INFO L137 Inliner]: procedures = 180, calls = 77, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 210 [2021-11-23 17:37:34,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:37:34,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:37:34,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:37:34,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:37:34,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:34" (1/1) ... [2021-11-23 17:37:34,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:34" (1/1) ... [2021-11-23 17:37:35,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:34" (1/1) ... [2021-11-23 17:37:35,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:34" (1/1) ... [2021-11-23 17:37:35,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:34" (1/1) ... [2021-11-23 17:37:35,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:34" (1/1) ... [2021-11-23 17:37:35,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:34" (1/1) ... [2021-11-23 17:37:35,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:37:35,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:37:35,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:37:35,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:37:35,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:34" (1/1) ... [2021-11-23 17:37:35,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:37:35,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:37:35,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:37:35,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:37:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:37:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:37:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:37:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:37:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:37:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:37:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:37:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 17:37:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 17:37:35,188 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 17:37:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 17:37:35,189 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 17:37:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 17:37:35,189 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 17:37:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:37:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:37:35,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:37:35,192 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 17:37:35,455 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:37:35,457 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:37:36,482 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:37:36,713 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 17:37:36,721 INFO L158 Benchmark]: Toolchain (without parser) took 2656.72ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 36.5MB in the beginning and 50.8MB in the end (delta: -14.3MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2021-11-23 17:37:36,721 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 58.7MB. Free memory is still 39.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:37:36,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 809.18ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 27.5MB in the end (delta: 8.8MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2021-11-23 17:37:36,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.08ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 27.5MB in the beginning and 58.6MB in the end (delta: -31.1MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2021-11-23 17:37:36,726 INFO L158 Benchmark]: Boogie Preprocessor took 79.13ms. Allocated memory is still 77.6MB. Free memory was 58.6MB in the beginning and 55.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:37:36,727 INFO L158 Benchmark]: RCFGBuilder took 1654.03ms. Allocated memory is still 77.6MB. Free memory was 55.4MB in the beginning and 50.8MB in the end (delta: 4.5MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2021-11-23 17:37:36,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 58.7MB. Free memory is still 39.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 809.18ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 27.5MB in the end (delta: 8.8MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.08ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 27.5MB in the beginning and 58.6MB in the end (delta: -31.1MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.13ms. Allocated memory is still 77.6MB. Free memory was 58.6MB in the beginning and 55.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1654.03ms. Allocated memory is still 77.6MB. Free memory was 55.4MB in the beginning and 50.8MB in the end (delta: 4.5MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:37:36,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c79479-824e-4d8e-9e15-63f72c80a463/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