./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/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_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/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_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/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 9071d56f4666aca734ab742196d3aa15fce92ad6b7c276706d2cff43d2d6147a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:22:27,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:22:27,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:22:27,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:22:27,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:22:27,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:22:27,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:22:27,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:22:27,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:22:27,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:22:27,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:22:27,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:22:27,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:22:27,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:22:27,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:22:27,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:22:27,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:22:27,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:22:27,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:22:27,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:22:27,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:22:27,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:22:27,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:22:27,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:22:27,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:22:27,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:22:27,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:22:27,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:22:27,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:22:27,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:22:27,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:22:27,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:22:27,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:22:27,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:22:27,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:22:27,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:22:27,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:22:27,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:22:27,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:22:27,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:22:27,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:22:27,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:22:27,797 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:22:27,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:22:27,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:22:27,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:22:27,798 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:22:27,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:22:27,799 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:22:27,799 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:22:27,799 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:22:27,800 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:22:27,800 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:22:27,800 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:22:27,800 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:22:27,800 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:22:27,801 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:22:27,801 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:22:27,801 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:22:27,801 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:22:27,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:22:27,802 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:22:27,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:22:27,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:22:27,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:22:27,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:22:27,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:22:27,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:22:27,804 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:22:27,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:22:27,805 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:22:27,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:22:27,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:22:27,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:22:27,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:27,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:22:27,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:22:27,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:22:27,807 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:22:27,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:22:27,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:22:27,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:22:27,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:22:27,808 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_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9071d56f4666aca734ab742196d3aa15fce92ad6b7c276706d2cff43d2d6147a [2021-11-23 17:22:28,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:22:28,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:22:28,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:22:28,179 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:22:28,180 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:22:28,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-11-23 17:22:28,277 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/data/9a4e1462f/3192ca3383b54b32aaeee6d5f96ba72d/FLAG51da5416a [2021-11-23 17:22:28,879 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:22:28,879 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-11-23 17:22:28,897 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/data/9a4e1462f/3192ca3383b54b32aaeee6d5f96ba72d/FLAG51da5416a [2021-11-23 17:22:29,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/data/9a4e1462f/3192ca3383b54b32aaeee6d5f96ba72d [2021-11-23 17:22:29,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:22:29,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:22:29,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:29,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:22:29,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:22:29,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:29" (1/1) ... [2021-11-23 17:22:29,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74636f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:29, skipping insertion in model container [2021-11-23 17:22:29,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:29" (1/1) ... [2021-11-23 17:22:29,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:22:29,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:22:29,483 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_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2021-11-23 17:22:29,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:29,805 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:22:29,824 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_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2021-11-23 17:22:29,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:29,961 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:22:29,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:29 WrapperNode [2021-11-23 17:22:29,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:29,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:29,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:22:29,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:22:29,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:29" (1/1) ... [2021-11-23 17:22:30,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:29" (1/1) ... [2021-11-23 17:22:30,051 INFO L137 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2021-11-23 17:22:30,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:30,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:22:30,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:22:30,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:22:30,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:29" (1/1) ... [2021-11-23 17:22:30,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:29" (1/1) ... [2021-11-23 17:22:30,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:29" (1/1) ... [2021-11-23 17:22:30,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:29" (1/1) ... [2021-11-23 17:22:30,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:29" (1/1) ... [2021-11-23 17:22:30,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:29" (1/1) ... [2021-11-23 17:22:30,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:29" (1/1) ... [2021-11-23 17:22:30,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:22:30,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:22:30,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:22:30,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:22:30,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:29" (1/1) ... [2021-11-23 17:22:30,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:30,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:22:30,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:22:30,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:22:30,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:22:30,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:22:30,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:22:30,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:22:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:22:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 17:22:30,201 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 17:22:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 17:22:30,202 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 17:22:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 17:22:30,202 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 17:22:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:22:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:22:30,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:22:30,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:22:30,205 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 17:22:30,335 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:22:30,337 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:22:30,519 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:22:30,529 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:22:30,530 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 17:22:30,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:22:30 BoogieIcfgContainer [2021-11-23 17:22:30,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:22:30,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:22:30,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:22:30,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:22:30,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:22:29" (1/3) ... [2021-11-23 17:22:30,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e3a056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:22:30, skipping insertion in model container [2021-11-23 17:22:30,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:29" (2/3) ... [2021-11-23 17:22:30,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e3a056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:22:30, skipping insertion in model container [2021-11-23 17:22:30,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:22:30" (3/3) ... [2021-11-23 17:22:30,544 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-11-23 17:22:30,551 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 17:22:30,551 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:22:30,551 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:22:30,552 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 17:22:30,591 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,592 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,592 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,592 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,592 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,593 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,593 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,593 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,594 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,594 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,594 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,594 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,595 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,595 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,595 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,596 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,596 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,596 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,596 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,596 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,597 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,597 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,598 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,598 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,598 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,599 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,599 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,599 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,599 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,600 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,600 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,600 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,601 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,601 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,601 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,601 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:30,602 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.connectThreadInstances(ThreadInstanceAdder.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:514) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:22:30,607 INFO L158 Benchmark]: Toolchain (without parser) took 1430.15ms. Allocated memory is still 109.1MB. Free memory was 69.9MB in the beginning and 54.4MB in the end (delta: 15.5MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2021-11-23 17:22:30,607 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:22:30,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 784.75ms. Allocated memory is still 109.1MB. Free memory was 69.7MB in the beginning and 75.0MB in the end (delta: -5.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:22:30,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.32ms. Allocated memory is still 109.1MB. Free memory was 75.0MB in the beginning and 73.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:30,610 INFO L158 Benchmark]: Boogie Preprocessor took 58.13ms. Allocated memory is still 109.1MB. Free memory was 73.0MB in the beginning and 71.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:22:30,611 INFO L158 Benchmark]: RCFGBuilder took 420.81ms. Allocated memory is still 109.1MB. Free memory was 71.4MB in the beginning and 59.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:22:30,612 INFO L158 Benchmark]: TraceAbstraction took 69.50ms. Allocated memory is still 109.1MB. Free memory was 58.9MB in the beginning and 54.4MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:22:30,617 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 109.1MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 784.75ms. Allocated memory is still 109.1MB. Free memory was 69.7MB in the beginning and 75.0MB in the end (delta: -5.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.32ms. Allocated memory is still 109.1MB. Free memory was 75.0MB in the beginning and 73.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.13ms. Allocated memory is still 109.1MB. Free memory was 73.0MB in the beginning and 71.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 420.81ms. Allocated memory is still 109.1MB. Free memory was 71.4MB in the beginning and 59.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 69.50ms. Allocated memory is still 109.1MB. Free memory was 58.9MB in the beginning and 54.4MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:22:30,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/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_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/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_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/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_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/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 9071d56f4666aca734ab742196d3aa15fce92ad6b7c276706d2cff43d2d6147a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:22:33,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:22:33,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:22:33,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:22:33,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:22:33,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:22:33,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:22:33,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:22:33,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:22:33,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:22:33,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:22:33,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:22:33,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:22:33,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:22:33,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:22:33,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:22:33,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:22:33,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:22:33,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:22:33,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:22:33,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:22:33,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:22:33,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:22:33,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:22:33,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:22:33,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:22:33,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:22:33,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:22:33,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:22:33,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:22:33,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:22:33,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:22:33,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:22:33,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:22:33,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:22:33,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:22:33,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:22:33,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:22:33,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:22:33,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:22:33,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:22:33,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:22:33,815 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:22:33,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:22:33,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:22:33,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:22:33,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:22:33,818 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:22:33,819 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:22:33,819 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:22:33,819 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:22:33,820 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:22:33,821 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:22:33,821 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:22:33,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:22:33,824 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:22:33,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:22:33,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:22:33,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:22:33,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:22:33,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:22:33,825 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:22:33,826 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:22:33,826 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:22:33,826 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:22:33,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:22:33,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:22:33,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:22:33,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:22:33,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:22:33,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:22:33,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:33,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:22:33,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:22:33,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:22:33,830 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:22:33,830 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:22:33,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:22:33,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:22:33,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:22:33,831 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_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9071d56f4666aca734ab742196d3aa15fce92ad6b7c276706d2cff43d2d6147a [2021-11-23 17:22:34,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:22:34,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:22:34,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:22:34,406 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:22:34,407 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:22:34,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-11-23 17:22:34,500 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/data/8d12a68dd/f8d5ee6162084ea1b3f186f6662dfb12/FLAG0805c4358 [2021-11-23 17:22:35,251 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:22:35,252 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-11-23 17:22:35,275 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/data/8d12a68dd/f8d5ee6162084ea1b3f186f6662dfb12/FLAG0805c4358 [2021-11-23 17:22:35,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/data/8d12a68dd/f8d5ee6162084ea1b3f186f6662dfb12 [2021-11-23 17:22:35,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:22:35,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:22:35,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:35,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:22:35,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:22:35,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:35" (1/1) ... [2021-11-23 17:22:35,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78db4de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:35, skipping insertion in model container [2021-11-23 17:22:35,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:35" (1/1) ... [2021-11-23 17:22:35,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:22:35,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:22:35,895 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_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2021-11-23 17:22:36,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:36,140 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:22:36,165 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_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2021-11-23 17:22:36,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:36,312 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:22:36,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:36 WrapperNode [2021-11-23 17:22:36,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:36,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:36,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:22:36,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:22:36,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:36" (1/1) ... [2021-11-23 17:22:36,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:36" (1/1) ... [2021-11-23 17:22:36,390 INFO L137 Inliner]: procedures = 179, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2021-11-23 17:22:36,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:36,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:22:36,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:22:36,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:22:36,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:36" (1/1) ... [2021-11-23 17:22:36,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:36" (1/1) ... [2021-11-23 17:22:36,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:36" (1/1) ... [2021-11-23 17:22:36,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:36" (1/1) ... [2021-11-23 17:22:36,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:36" (1/1) ... [2021-11-23 17:22:36,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:36" (1/1) ... [2021-11-23 17:22:36,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:36" (1/1) ... [2021-11-23 17:22:36,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:22:36,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:22:36,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:22:36,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:22:36,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:36" (1/1) ... [2021-11-23 17:22:36,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:36,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:22:36,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:22:36,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:22:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:22:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:22:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:22:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:22:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:22:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:22:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 17:22:36,560 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 17:22:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 17:22:36,560 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 17:22:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 17:22:36,561 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 17:22:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:22:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:22:36,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:22:36,563 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 17:22:36,719 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:22:36,722 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:22:37,009 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:22:37,019 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:22:37,019 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 17:22:37,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:22:37 BoogieIcfgContainer [2021-11-23 17:22:37,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:22:37,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:22:37,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:22:37,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:22:37,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:22:35" (1/3) ... [2021-11-23 17:22:37,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316931c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:22:37, skipping insertion in model container [2021-11-23 17:22:37,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:36" (2/3) ... [2021-11-23 17:22:37,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316931c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:22:37, skipping insertion in model container [2021-11-23 17:22:37,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:22:37" (3/3) ... [2021-11-23 17:22:37,033 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2021-11-23 17:22:37,039 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 17:22:37,040 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:22:37,040 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:22:37,040 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 17:22:37,088 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,088 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,088 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,089 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,089 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,089 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,090 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,090 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,091 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,091 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,092 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,092 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,093 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,093 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,093 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,093 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,094 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,094 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,094 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,094 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,096 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,096 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,096 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,096 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,097 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,098 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,098 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,098 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,098 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,099 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,099 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,099 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,100 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,100 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,101 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,101 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:22:37,102 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.connectThreadInstances(ThreadInstanceAdder.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:514) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:22:37,108 INFO L158 Benchmark]: Toolchain (without parser) took 1607.28ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 49.6MB in the beginning and 69.8MB in the end (delta: -20.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2021-11-23 17:22:37,108 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 69.2MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:22:37,109 INFO L158 Benchmark]: CACSL2BoogieTranslator took 810.08ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 41.1MB in the end (delta: 8.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:22:37,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.54ms. Allocated memory is still 69.2MB. Free memory was 41.1MB in the beginning and 38.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:37,112 INFO L158 Benchmark]: Boogie Preprocessor took 43.77ms. Allocated memory is still 69.2MB. Free memory was 38.8MB in the beginning and 37.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:37,113 INFO L158 Benchmark]: RCFGBuilder took 584.77ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 37.2MB in the beginning and 74.8MB in the end (delta: -37.6MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2021-11-23 17:22:37,114 INFO L158 Benchmark]: TraceAbstraction took 80.54ms. Allocated memory is still 100.7MB. Free memory was 74.4MB in the beginning and 69.8MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:22:37,134 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 69.2MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 810.08ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 41.1MB in the end (delta: 8.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.54ms. Allocated memory is still 69.2MB. Free memory was 41.1MB in the beginning and 38.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.77ms. Allocated memory is still 69.2MB. Free memory was 38.8MB in the beginning and 37.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 584.77ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 37.2MB in the beginning and 74.8MB in the end (delta: -37.6MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * TraceAbstraction took 80.54ms. Allocated memory is still 100.7MB. Free memory was 74.4MB in the beginning and 69.8MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:22:37,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04a0049f-1b66-40d0-b1dc-d386a8a8cb30/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