./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_power.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_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/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_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/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_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/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 3edc5a2d9ce2881b3565fd36253c94b9cf356a0dafd043fa3f9d27823541c09b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:01:49,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:01:49,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:01:49,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:01:49,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:01:49,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:01:49,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:01:49,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:01:49,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:01:49,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:01:49,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:01:49,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:01:49,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:01:49,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:01:49,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:01:49,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:01:49,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:01:49,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:01:49,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:01:49,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:01:49,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:01:49,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:01:49,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:01:49,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:01:49,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:01:49,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:01:49,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:01:49,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:01:49,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:01:49,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:01:49,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:01:49,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:01:49,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:01:49,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:01:49,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:01:49,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:01:49,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:01:49,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:01:49,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:01:49,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:01:49,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:01:49,737 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:01:49,773 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:01:49,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:01:49,774 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:01:49,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:01:49,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:01:49,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:01:49,776 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:01:49,777 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:01:49,777 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:01:49,777 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:01:49,778 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:01:49,778 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:01:49,778 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:01:49,778 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:01:49,779 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:01:49,779 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:01:49,779 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:01:49,780 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:01:49,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:01:49,781 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:01:49,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:01:49,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:01:49,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:01:49,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:01:49,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:01:49,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:01:49,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:01:49,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:01:49,784 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:01:49,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:01:49,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:01:49,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:01:49,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:49,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:01:49,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:01:49,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:01:49,786 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:01:49,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:01:49,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:01:49,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:01:49,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:01:49,788 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_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3edc5a2d9ce2881b3565fd36253c94b9cf356a0dafd043fa3f9d27823541c09b [2021-11-23 17:01:50,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:01:50,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:01:50,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:01:50,172 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:01:50,173 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:01:50,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/safe027_power.opt.i [2021-11-23 17:01:50,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/data/99092331a/02cf5f47f4694705b9b4260a13b710bf/FLAG90020b2e6 [2021-11-23 17:01:50,888 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:01:50,889 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i [2021-11-23 17:01:50,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/data/99092331a/02cf5f47f4694705b9b4260a13b710bf/FLAG90020b2e6 [2021-11-23 17:01:51,185 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/data/99092331a/02cf5f47f4694705b9b4260a13b710bf [2021-11-23 17:01:51,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:01:51,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:01:51,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:51,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:01:51,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:01:51,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:51" (1/1) ... [2021-11-23 17:01:51,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9b7293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:51, skipping insertion in model container [2021-11-23 17:01:51,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:51" (1/1) ... [2021-11-23 17:01:51,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:01:51,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:01:51,513 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_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i[994,1007] [2021-11-23 17:01:51,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:51,860 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:01:51,875 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_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i[994,1007] [2021-11-23 17:01:51,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:52,038 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:01:52,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:52 WrapperNode [2021-11-23 17:01:52,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:52,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:52,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:01:52,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:01:52,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:52" (1/1) ... [2021-11-23 17:01:52,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:52" (1/1) ... [2021-11-23 17:01:52,125 INFO L137 Inliner]: procedures = 177, calls = 88, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 226 [2021-11-23 17:01:52,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:52,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:01:52,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:01:52,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:01:52,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:52" (1/1) ... [2021-11-23 17:01:52,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:52" (1/1) ... [2021-11-23 17:01:52,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:52" (1/1) ... [2021-11-23 17:01:52,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:52" (1/1) ... [2021-11-23 17:01:52,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:52" (1/1) ... [2021-11-23 17:01:52,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:52" (1/1) ... [2021-11-23 17:01:52,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:52" (1/1) ... [2021-11-23 17:01:52,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:01:52,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:01:52,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:01:52,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:01:52,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:52" (1/1) ... [2021-11-23 17:01:52,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:52,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:01:52,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:01:52,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:01:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:01:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:01:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:01:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:01:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:01:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:01:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 17:01:52,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 17:01:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 17:01:52,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 17:01:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 17:01:52,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 17:01:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-11-23 17:01:52,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-11-23 17:01:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:01:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:01:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:01:52,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:01:52,356 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 17:01:52,529 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:01:52,530 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:01:53,521 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:01:53,653 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 17:01:53,657 INFO L158 Benchmark]: Toolchain (without parser) took 2461.39ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 56.0MB in the beginning and 73.6MB in the end (delta: -17.5MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2021-11-23 17:01:53,658 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory was 66.2MB in the beginning and 66.2MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:01:53,659 INFO L158 Benchmark]: CACSL2BoogieTranslator took 839.44ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 55.8MB in the beginning and 80.5MB in the end (delta: -24.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:01:53,660 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.54ms. Allocated memory is still 121.6MB. Free memory was 80.5MB in the beginning and 77.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:01:53,661 INFO L158 Benchmark]: Boogie Preprocessor took 113.64ms. Allocated memory is still 121.6MB. Free memory was 77.8MB in the beginning and 74.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:01:53,662 INFO L158 Benchmark]: RCFGBuilder took 1413.40ms. Allocated memory is still 121.6MB. Free memory was 74.2MB in the beginning and 73.6MB in the end (delta: 614.4kB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2021-11-23 17:01:53,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory was 66.2MB in the beginning and 66.2MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 839.44ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 55.8MB in the beginning and 80.5MB in the end (delta: -24.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.54ms. Allocated memory is still 121.6MB. Free memory was 80.5MB in the beginning and 77.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 113.64ms. Allocated memory is still 121.6MB. Free memory was 77.8MB in the beginning and 74.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1413.40ms. Allocated memory is still 121.6MB. Free memory was 74.2MB in the beginning and 73.6MB in the end (delta: 614.4kB). Peak memory consumption was 39.1MB. 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 17:01:53,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/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_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/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_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/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_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/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 3edc5a2d9ce2881b3565fd36253c94b9cf356a0dafd043fa3f9d27823541c09b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:01:56,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:01:56,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:01:56,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:01:56,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:01:56,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:01:56,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:01:56,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:01:56,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:01:56,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:01:56,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:01:56,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:01:56,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:01:56,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:01:56,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:01:56,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:01:56,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:01:56,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:01:56,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:01:56,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:01:56,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:01:56,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:01:56,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:01:56,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:01:56,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:01:56,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:01:56,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:01:56,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:01:56,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:01:56,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:01:56,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:01:56,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:01:56,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:01:56,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:01:56,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:01:56,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:01:56,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:01:56,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:01:56,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:01:56,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:01:56,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:01:56,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:01:56,722 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:01:56,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:01:56,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:01:56,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:01:56,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:01:56,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:01:56,725 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:01:56,725 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:01:56,725 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:01:56,725 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:01:56,725 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:01:56,726 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:01:56,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:01:56,727 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:01:56,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:01:56,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:01:56,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:01:56,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:01:56,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:01:56,728 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:01:56,728 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:01:56,729 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:01:56,729 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:01:56,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:01:56,729 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:01:56,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:01:56,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:01:56,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:01:56,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:01:56,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:56,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:01:56,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:01:56,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:01:56,731 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:01:56,732 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:01:56,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:01:56,732 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:01:56,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:01:56,733 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_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3edc5a2d9ce2881b3565fd36253c94b9cf356a0dafd043fa3f9d27823541c09b [2021-11-23 17:01:57,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:01:57,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:01:57,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:01:57,155 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:01:57,156 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:01:57,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/safe027_power.opt.i [2021-11-23 17:01:57,228 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/data/5888013c6/0c56b5586b4a411a88dd4f1721511353/FLAGd306c26be [2021-11-23 17:01:57,935 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:01:57,935 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i [2021-11-23 17:01:57,956 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/data/5888013c6/0c56b5586b4a411a88dd4f1721511353/FLAGd306c26be [2021-11-23 17:01:58,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/data/5888013c6/0c56b5586b4a411a88dd4f1721511353 [2021-11-23 17:01:58,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:01:58,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:01:58,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:58,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:01:58,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:01:58,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:58" (1/1) ... [2021-11-23 17:01:58,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32d7c2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:58, skipping insertion in model container [2021-11-23 17:01:58,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:58" (1/1) ... [2021-11-23 17:01:58,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:01:58,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:01:58,530 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_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i[994,1007] [2021-11-23 17:01:58,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:58,891 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:01:58,907 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_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/sv-benchmarks/c/pthread-wmm/safe027_power.opt.i[994,1007] [2021-11-23 17:01:59,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:59,102 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:01:59,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:59 WrapperNode [2021-11-23 17:01:59,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:59,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:59,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:01:59,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:01:59,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:59" (1/1) ... [2021-11-23 17:01:59,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:59" (1/1) ... [2021-11-23 17:01:59,201 INFO L137 Inliner]: procedures = 181, calls = 88, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 227 [2021-11-23 17:01:59,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:59,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:01:59,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:01:59,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:01:59,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:59" (1/1) ... [2021-11-23 17:01:59,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:59" (1/1) ... [2021-11-23 17:01:59,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:59" (1/1) ... [2021-11-23 17:01:59,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:59" (1/1) ... [2021-11-23 17:01:59,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:59" (1/1) ... [2021-11-23 17:01:59,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:59" (1/1) ... [2021-11-23 17:01:59,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:59" (1/1) ... [2021-11-23 17:01:59,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:01:59,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:01:59,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:01:59,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:01:59,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:59" (1/1) ... [2021-11-23 17:01:59,297 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:59,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:01:59,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:01:59,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:01:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:01:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 17:01:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:01:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:01:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:01:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:01:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:01:59,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 17:01:59,390 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 17:01:59,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 17:01:59,390 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 17:01:59,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 17:01:59,390 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 17:01:59,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 17:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-11-23 17:01:59,391 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-11-23 17:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 17:01:59,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:01:59,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:01:59,394 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 17:01:59,671 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:01:59,673 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:02:00,793 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:02:00,994 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 17:02:00,997 INFO L158 Benchmark]: Toolchain (without parser) took 2817.93ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.0MB in the beginning and 34.3MB in the end (delta: 2.7MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2021-11-23 17:02:00,998 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 60.8MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:02:00,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 920.07ms. Allocated memory is still 60.8MB. Free memory was 36.8MB in the beginning and 26.8MB in the end (delta: 10.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:02:01,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.17ms. Allocated memory is still 60.8MB. Free memory was 26.7MB in the beginning and 41.0MB in the end (delta: -14.4MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2021-11-23 17:02:01,001 INFO L158 Benchmark]: Boogie Preprocessor took 77.39ms. Allocated memory is still 60.8MB. Free memory was 40.8MB in the beginning and 37.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:02:01,002 INFO L158 Benchmark]: RCFGBuilder took 1714.08ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.6MB in the beginning and 34.3MB in the end (delta: 3.3MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2021-11-23 17:02:01,006 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 60.8MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 920.07ms. Allocated memory is still 60.8MB. Free memory was 36.8MB in the beginning and 26.8MB in the end (delta: 10.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.17ms. Allocated memory is still 60.8MB. Free memory was 26.7MB in the beginning and 41.0MB in the end (delta: -14.4MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.39ms. Allocated memory is still 60.8MB. Free memory was 40.8MB in the beginning and 37.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1714.08ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.6MB in the beginning and 34.3MB in the end (delta: 3.3MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:02:01,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a39f04e-a311-4c7f-b17c-f42ca5ea58fa/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