./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe034_tso.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_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/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_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe034_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/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_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/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 f95cec1ef19619129f583fb8c66d7deea9b3c11be41d52b59a1e2cd5f199d72e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:53:10,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:53:10,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:53:10,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:53:10,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:53:10,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:53:10,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:53:10,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:53:10,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:53:10,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:53:10,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:53:10,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:53:10,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:53:10,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:53:10,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:53:10,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:53:10,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:53:10,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:53:10,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:53:10,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:53:10,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:53:10,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:53:10,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:53:10,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:53:10,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:53:10,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:53:10,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:53:10,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:53:10,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:53:10,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:53:10,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:53:10,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:53:10,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:53:10,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:53:10,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:53:10,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:53:10,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:53:10,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:53:10,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:53:10,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:53:10,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:53:10,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:53:10,437 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:53:10,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:53:10,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:53:10,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:53:10,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:53:10,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:53:10,445 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:53:10,445 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:53:10,445 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:53:10,445 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:53:10,445 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:53:10,445 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:53:10,445 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:53:10,446 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:53:10,446 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:53:10,446 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:53:10,446 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:53:10,446 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:53:10,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:53:10,447 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:53:10,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:53:10,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:53:10,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:53:10,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:53:10,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:53:10,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:53:10,448 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:53:10,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:53:10,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:53:10,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:53:10,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:53:10,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:53:10,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:53:10,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:53:10,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:53:10,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:53:10,449 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:53:10,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:53:10,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:53:10,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:53:10,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:53:10,449 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_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f95cec1ef19619129f583fb8c66d7deea9b3c11be41d52b59a1e2cd5f199d72e [2021-11-23 16:53:10,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:53:10,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:53:10,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:53:10,705 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:53:10,706 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:53:10,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/safe034_tso.i [2021-11-23 16:53:10,780 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/data/8051f1a18/494a156584904022ae03fc7077c6ad1f/FLAGac47e496c [2021-11-23 16:53:11,342 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:53:11,343 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/sv-benchmarks/c/pthread-wmm/safe034_tso.i [2021-11-23 16:53:11,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/data/8051f1a18/494a156584904022ae03fc7077c6ad1f/FLAGac47e496c [2021-11-23 16:53:11,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/data/8051f1a18/494a156584904022ae03fc7077c6ad1f [2021-11-23 16:53:11,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:53:11,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:53:11,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:53:11,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:53:11,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:53:11,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:53:11" (1/1) ... [2021-11-23 16:53:11,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@469fba24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:11, skipping insertion in model container [2021-11-23 16:53:11,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:53:11" (1/1) ... [2021-11-23 16:53:11,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:53:11,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:53:11,975 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_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/sv-benchmarks/c/pthread-wmm/safe034_tso.i[945,958] [2021-11-23 16:53:12,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:53:12,231 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:53:12,246 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_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/sv-benchmarks/c/pthread-wmm/safe034_tso.i[945,958] [2021-11-23 16:53:12,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:53:12,361 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:53:12,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:12 WrapperNode [2021-11-23 16:53:12,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:53:12,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:53:12,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:53:12,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:53:12,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:12" (1/1) ... [2021-11-23 16:53:12,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:12" (1/1) ... [2021-11-23 16:53:12,429 INFO L137 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2021-11-23 16:53:12,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:53:12,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:53:12,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:53:12,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:53:12,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:12" (1/1) ... [2021-11-23 16:53:12,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:12" (1/1) ... [2021-11-23 16:53:12,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:12" (1/1) ... [2021-11-23 16:53:12,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:12" (1/1) ... [2021-11-23 16:53:12,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:12" (1/1) ... [2021-11-23 16:53:12,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:12" (1/1) ... [2021-11-23 16:53:12,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:12" (1/1) ... [2021-11-23 16:53:12,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:53:12,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:53:12,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:53:12,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:53:12,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:12" (1/1) ... [2021-11-23 16:53:12,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:53:12,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:53:12,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:53:12,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:53:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 16:53:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 16:53:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:53:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:53:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:53:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 16:53:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 16:53:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 16:53:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 16:53:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 16:53:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 16:53:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:53:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 16:53:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:53:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:53:12,577 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 16:53:12,729 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:53:12,731 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:53:12,896 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:53:12,905 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:53:12,906 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 16:53:12,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:53:12 BoogieIcfgContainer [2021-11-23 16:53:12,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:53:12,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:53:12,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:53:12,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:53:12,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:53:11" (1/3) ... [2021-11-23 16:53:12,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51034603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:53:12, skipping insertion in model container [2021-11-23 16:53:12,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:12" (2/3) ... [2021-11-23 16:53:12,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51034603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:53:12, skipping insertion in model container [2021-11-23 16:53:12,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:53:12" (3/3) ... [2021-11-23 16:53:12,927 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.i [2021-11-23 16:53:12,934 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 16:53:12,941 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:53:12,942 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:53:12,942 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 16:53:12,978 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,978 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,979 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,979 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,979 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,979 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,980 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,980 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,980 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,981 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,981 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,981 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,982 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,982 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,982 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,982 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,982 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,983 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,983 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,983 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,984 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,984 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,984 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,984 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,985 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,985 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,985 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,985 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,986 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,986 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,986 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,986 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,987 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,987 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,987 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,987 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:12,988 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 16:53:13,002 INFO L158 Benchmark]: Toolchain (without parser) took 1328.85ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 73.0MB in the beginning and 70.5MB in the end (delta: 2.6MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2021-11-23 16:53:13,004 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:53:13,006 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.47ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 72.8MB in the beginning and 90.8MB in the end (delta: -18.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 16:53:13,008 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.93ms. Allocated memory is still 125.8MB. Free memory was 90.8MB in the beginning and 88.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:53:13,009 INFO L158 Benchmark]: Boogie Preprocessor took 45.20ms. Allocated memory is still 125.8MB. Free memory was 88.9MB in the beginning and 87.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:53:13,010 INFO L158 Benchmark]: RCFGBuilder took 432.35ms. Allocated memory is still 125.8MB. Free memory was 87.2MB in the beginning and 75.3MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:53:13,011 INFO L158 Benchmark]: TraceAbstraction took 82.02ms. Allocated memory is still 125.8MB. Free memory was 75.1MB in the beginning and 70.5MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 16:53:13,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.47ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 72.8MB in the beginning and 90.8MB in the end (delta: -18.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.93ms. Allocated memory is still 125.8MB. Free memory was 90.8MB in the beginning and 88.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.20ms. Allocated memory is still 125.8MB. Free memory was 88.9MB in the beginning and 87.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 432.35ms. Allocated memory is still 125.8MB. Free memory was 87.2MB in the beginning and 75.3MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 82.02ms. Allocated memory is still 125.8MB. Free memory was 75.1MB in the beginning and 70.5MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. 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 16:53:13,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/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_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/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_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe034_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/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_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/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 f95cec1ef19619129f583fb8c66d7deea9b3c11be41d52b59a1e2cd5f199d72e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:53:15,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:53:15,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:53:15,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:53:15,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:53:15,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:53:15,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:53:15,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:53:15,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:53:15,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:53:15,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:53:15,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:53:15,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:53:15,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:53:15,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:53:15,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:53:15,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:53:15,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:53:15,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:53:15,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:53:15,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:53:15,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:53:15,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:53:15,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:53:15,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:53:15,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:53:15,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:53:15,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:53:15,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:53:15,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:53:15,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:53:15,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:53:15,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:53:15,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:53:15,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:53:15,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:53:15,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:53:15,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:53:15,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:53:15,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:53:15,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:53:15,919 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:53:15,973 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:53:15,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:53:15,975 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:53:15,975 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:53:15,976 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:53:15,976 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:53:15,976 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:53:15,977 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:53:15,977 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:53:15,977 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:53:15,978 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:53:15,979 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:53:15,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:53:15,981 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:53:15,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:53:15,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:53:15,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:53:15,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:53:15,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:53:15,982 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:53:15,982 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:53:15,983 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:53:15,983 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:53:15,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:53:15,983 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:53:15,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:53:15,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:53:15,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:53:15,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:53:15,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:53:15,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:53:15,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:53:15,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:53:15,986 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:53:15,986 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:53:15,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:53:15,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:53:15,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:53:16,000 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_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f95cec1ef19619129f583fb8c66d7deea9b3c11be41d52b59a1e2cd5f199d72e [2021-11-23 16:53:16,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:53:16,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:53:16,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:53:16,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:53:16,461 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:53:16,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/pthread-wmm/safe034_tso.i [2021-11-23 16:53:16,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/data/68b36de10/8b62375550bb46179f22a43694147091/FLAGe91532f9e [2021-11-23 16:53:17,125 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:53:17,125 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/sv-benchmarks/c/pthread-wmm/safe034_tso.i [2021-11-23 16:53:17,143 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/data/68b36de10/8b62375550bb46179f22a43694147091/FLAGe91532f9e [2021-11-23 16:53:17,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/data/68b36de10/8b62375550bb46179f22a43694147091 [2021-11-23 16:53:17,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:53:17,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:53:17,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:53:17,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:53:17,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:53:17,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:53:17" (1/1) ... [2021-11-23 16:53:17,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c0b2c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:17, skipping insertion in model container [2021-11-23 16:53:17,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:53:17" (1/1) ... [2021-11-23 16:53:17,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:53:17,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:53:17,599 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_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/sv-benchmarks/c/pthread-wmm/safe034_tso.i[945,958] [2021-11-23 16:53:17,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:53:17,892 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:53:17,913 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_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/sv-benchmarks/c/pthread-wmm/safe034_tso.i[945,958] [2021-11-23 16:53:17,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:53:18,021 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:53:18,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18 WrapperNode [2021-11-23 16:53:18,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:53:18,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:53:18,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:53:18,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:53:18,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,093 INFO L137 Inliner]: procedures = 179, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2021-11-23 16:53:18,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:53:18,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:53:18,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:53:18,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:53:18,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:53:18,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:53:18,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:53:18,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:53:18,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (1/1) ... [2021-11-23 16:53:18,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:53:18,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:53:18,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:53:18,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:53:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 16:53:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:53:18,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 16:53:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 16:53:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 16:53:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:53:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-23 16:53:18,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-23 16:53:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-23 16:53:18,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-23 16:53:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-23 16:53:18,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-23 16:53:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 16:53:18,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:53:18,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:53:18,253 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 16:53:18,467 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:53:18,473 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:53:18,696 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:53:18,704 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:53:18,704 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 16:53:18,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:53:18 BoogieIcfgContainer [2021-11-23 16:53:18,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:53:18,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:53:18,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:53:18,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:53:18,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:53:17" (1/3) ... [2021-11-23 16:53:18,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0f6073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:53:18, skipping insertion in model container [2021-11-23 16:53:18,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:53:18" (2/3) ... [2021-11-23 16:53:18,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0f6073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:53:18, skipping insertion in model container [2021-11-23 16:53:18,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:53:18" (3/3) ... [2021-11-23 16:53:18,715 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.i [2021-11-23 16:53:18,721 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 16:53:18,721 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:53:18,722 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:53:18,722 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 16:53:18,757 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,757 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,757 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,757 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,758 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,758 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,758 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,758 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,759 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,759 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,759 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,759 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,760 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,760 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,760 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,760 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,761 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,761 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,761 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,761 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,762 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,762 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,762 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,762 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,763 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,763 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,763 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,763 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,764 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,764 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,764 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,764 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,765 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,765 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,765 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,765 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 16:53:18,766 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 16:53:18,770 INFO L158 Benchmark]: Toolchain (without parser) took 1397.89ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 36.7MB in the end (delta: 8.2MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-11-23 16:53:18,771 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:53:18,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 647.83ms. Allocated memory is still 67.1MB. Free memory was 44.6MB in the beginning and 39.3MB in the end (delta: 5.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:53:18,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.19ms. Allocated memory is still 67.1MB. Free memory was 39.3MB in the beginning and 37.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:53:18,773 INFO L158 Benchmark]: Boogie Preprocessor took 68.43ms. Allocated memory is still 67.1MB. Free memory was 36.9MB in the beginning and 35.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 16:53:18,774 INFO L158 Benchmark]: RCFGBuilder took 543.16ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 41.7MB in the end (delta: -6.5MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2021-11-23 16:53:18,775 INFO L158 Benchmark]: TraceAbstraction took 59.28ms. Allocated memory is still 67.1MB. Free memory was 41.1MB in the beginning and 36.7MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:53:18,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 647.83ms. Allocated memory is still 67.1MB. Free memory was 44.6MB in the beginning and 39.3MB in the end (delta: 5.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.19ms. Allocated memory is still 67.1MB. Free memory was 39.3MB in the beginning and 37.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.43ms. Allocated memory is still 67.1MB. Free memory was 36.9MB in the beginning and 35.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 543.16ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 41.7MB in the end (delta: -6.5MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * TraceAbstraction took 59.28ms. Allocated memory is still 67.1MB. Free memory was 41.1MB in the beginning and 36.7MB 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 16:53:18,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c78829-3f0f-437a-bb81-f1ec6c8d1e8d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable