./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.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_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/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_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/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_3094f15c-349a-48f2-9f74-ff58ce05514e/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 a178b12ba1b75e8e390c539a1b1599b5e56cbe73098e0c8e7ca0eeb62a619e80 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:12:14,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:12:14,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:12:14,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:12:14,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:12:14,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:12:14,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:12:14,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:12:14,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:12:14,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:12:14,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:12:14,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:12:14,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:12:14,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:12:14,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:12:14,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:12:14,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:12:14,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:12:14,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:12:14,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:12:14,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:12:14,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:12:14,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:12:14,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:12:14,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:12:14,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:12:14,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:12:14,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:12:14,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:12:14,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:12:14,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:12:14,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:12:14,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:12:14,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:12:14,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:12:14,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:12:14,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:12:14,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:12:14,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:12:14,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:12:14,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:12:14,539 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:12:14,597 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:12:14,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:12:14,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:12:14,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:12:14,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:12:14,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:12:14,600 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:12:14,600 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:12:14,601 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:12:14,601 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:12:14,602 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:12:14,603 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:12:14,603 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:12:14,603 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:12:14,603 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:12:14,604 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:12:14,604 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:12:14,604 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:12:14,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:12:14,606 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:12:14,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:12:14,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:12:14,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:12:14,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:12:14,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:12:14,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:12:14,608 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:12:14,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:12:14,608 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:12:14,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:12:14,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:12:14,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:12:14,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:14,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:12:14,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:12:14,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:12:14,610 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:12:14,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:12:14,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:12:14,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:12:14,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:12:14,612 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_3094f15c-349a-48f2-9f74-ff58ce05514e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a178b12ba1b75e8e390c539a1b1599b5e56cbe73098e0c8e7ca0eeb62a619e80 [2021-11-23 17:12:14,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:12:14,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:12:14,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:12:14,954 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:12:14,955 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:12:14,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i [2021-11-23 17:12:15,030 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/data/a050c709e/b41a5bee4caf4d5491557c80ae71d49b/FLAGcff48f117 [2021-11-23 17:12:15,612 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:12:15,616 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i [2021-11-23 17:12:15,654 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/data/a050c709e/b41a5bee4caf4d5491557c80ae71d49b/FLAGcff48f117 [2021-11-23 17:12:15,894 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/data/a050c709e/b41a5bee4caf4d5491557c80ae71d49b [2021-11-23 17:12:15,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:12:15,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:12:15,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:15,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:12:15,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:12:15,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:15" (1/1) ... [2021-11-23 17:12:15,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@276c050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:15, skipping insertion in model container [2021-11-23 17:12:15,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:15" (1/1) ... [2021-11-23 17:12:15,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:12:16,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:12:16,389 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_3094f15c-349a-48f2-9f74-ff58ce05514e/sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i[30212,30225] [2021-11-23 17:12:16,431 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:16,454 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:12:16,522 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_3094f15c-349a-48f2-9f74-ff58ce05514e/sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i[30212,30225] [2021-11-23 17:12:16,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:16,589 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:12:16,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:16 WrapperNode [2021-11-23 17:12:16,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:16,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:16,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:12:16,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:12:16,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:16" (1/1) ... [2021-11-23 17:12:16,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:16" (1/1) ... [2021-11-23 17:12:16,667 INFO L137 Inliner]: procedures = 173, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 133 [2021-11-23 17:12:16,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:16,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:12:16,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:12:16,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:12:16,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:16" (1/1) ... [2021-11-23 17:12:16,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:16" (1/1) ... [2021-11-23 17:12:16,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:16" (1/1) ... [2021-11-23 17:12:16,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:16" (1/1) ... [2021-11-23 17:12:16,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:16" (1/1) ... [2021-11-23 17:12:16,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:16" (1/1) ... [2021-11-23 17:12:16,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:16" (1/1) ... [2021-11-23 17:12:16,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:12:16,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:12:16,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:12:16,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:12:16,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:16" (1/1) ... [2021-11-23 17:12:16,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:16,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:12:16,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:12:16,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:12:16,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:12:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:12:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-23 17:12:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:12:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:12:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-23 17:12:16,801 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-23 17:12:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:12:16,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:12:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:12:16,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:12:16,803 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 17:12:16,929 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:12:16,931 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:12:17,266 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:12:17,276 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:12:17,276 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-23 17:12:17,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:12:17 BoogieIcfgContainer [2021-11-23 17:12:17,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:12:17,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:12:17,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:12:17,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:12:17,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:12:15" (1/3) ... [2021-11-23 17:12:17,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8574e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:12:17, skipping insertion in model container [2021-11-23 17:12:17,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:16" (2/3) ... [2021-11-23 17:12:17,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8574e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:12:17, skipping insertion in model container [2021-11-23 17:12:17,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:12:17" (3/3) ... [2021-11-23 17:12:17,289 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_19-callback_racing.i [2021-11-23 17:12:17,295 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 17:12:17,295 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:12:17,296 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:12:17,296 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 17:12:17,340 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,340 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,341 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,341 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,342 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,344 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,345 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,345 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,345 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,346 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,346 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,346 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,347 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,348 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,349 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,350 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,351 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,352 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:17,353 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.connectThreadInstances(ThreadInstanceAdder.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:514) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:12:17,360 INFO L158 Benchmark]: Toolchain (without parser) took 1459.22ms. Allocated memory is still 115.3MB. Free memory was 85.1MB in the beginning and 56.6MB in the end (delta: 28.5MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2021-11-23 17:12:17,360 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 115.3MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:12:17,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.30ms. Allocated memory is still 115.3MB. Free memory was 84.8MB in the beginning and 79.6MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:12:17,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.94ms. Allocated memory is still 115.3MB. Free memory was 79.6MB in the beginning and 77.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:17,366 INFO L158 Benchmark]: Boogie Preprocessor took 33.65ms. Allocated memory is still 115.3MB. Free memory was 77.5MB in the beginning and 75.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:17,366 INFO L158 Benchmark]: RCFGBuilder took 575.82ms. Allocated memory is still 115.3MB. Free memory was 75.8MB in the beginning and 61.8MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:12:17,368 INFO L158 Benchmark]: TraceAbstraction took 75.91ms. Allocated memory is still 115.3MB. Free memory was 61.4MB in the beginning and 56.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:12:17,377 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 115.3MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.30ms. Allocated memory is still 115.3MB. Free memory was 84.8MB in the beginning and 79.6MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.94ms. Allocated memory is still 115.3MB. Free memory was 79.6MB in the beginning and 77.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.65ms. Allocated memory is still 115.3MB. Free memory was 77.5MB in the beginning and 75.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 575.82ms. Allocated memory is still 115.3MB. Free memory was 75.8MB in the beginning and 61.8MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 75.91ms. Allocated memory is still 115.3MB. Free memory was 61.4MB in the beginning and 56.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:12:17,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/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_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/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_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/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_3094f15c-349a-48f2-9f74-ff58ce05514e/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 a178b12ba1b75e8e390c539a1b1599b5e56cbe73098e0c8e7ca0eeb62a619e80 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:12:20,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:12:20,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:12:20,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:12:20,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:12:20,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:12:20,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:12:20,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:12:20,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:12:20,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:12:20,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:12:20,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:12:20,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:12:20,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:12:20,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:12:20,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:12:20,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:12:20,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:12:20,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:12:20,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:12:20,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:12:20,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:12:20,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:12:20,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:12:20,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:12:20,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:12:20,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:12:20,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:12:20,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:12:20,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:12:20,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:12:20,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:12:20,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:12:20,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:12:20,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:12:20,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:12:20,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:12:20,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:12:20,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:12:20,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:12:20,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:12:20,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:12:20,533 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:12:20,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:12:20,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:12:20,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:12:20,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:12:20,536 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:12:20,536 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:12:20,537 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:12:20,538 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:12:20,538 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:12:20,539 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:12:20,539 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:12:20,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:12:20,541 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:12:20,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:12:20,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:12:20,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:12:20,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:12:20,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:12:20,543 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:12:20,543 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:12:20,544 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:12:20,544 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:12:20,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:12:20,544 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:12:20,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:12:20,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:12:20,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:12:20,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:12:20,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:20,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:12:20,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:12:20,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:12:20,547 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:12:20,548 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:12:20,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:12:20,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:12:20,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:12:20,549 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_3094f15c-349a-48f2-9f74-ff58ce05514e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a178b12ba1b75e8e390c539a1b1599b5e56cbe73098e0c8e7ca0eeb62a619e80 [2021-11-23 17:12:21,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:12:21,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:12:21,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:12:21,052 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:12:21,053 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:12:21,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i [2021-11-23 17:12:21,128 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/data/dbde66c05/da44e73129cf4e688f1a48af600a69fd/FLAGa4e257e46 [2021-11-23 17:12:21,747 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:12:21,747 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i [2021-11-23 17:12:21,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/data/dbde66c05/da44e73129cf4e688f1a48af600a69fd/FLAGa4e257e46 [2021-11-23 17:12:22,016 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/data/dbde66c05/da44e73129cf4e688f1a48af600a69fd [2021-11-23 17:12:22,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:12:22,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:12:22,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:22,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:12:22,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:12:22,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:22" (1/1) ... [2021-11-23 17:12:22,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78271669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:22, skipping insertion in model container [2021-11-23 17:12:22,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:22" (1/1) ... [2021-11-23 17:12:22,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:12:22,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:12:22,544 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_3094f15c-349a-48f2-9f74-ff58ce05514e/sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i[30212,30225] [2021-11-23 17:12:22,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:22,590 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:12:22,628 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_3094f15c-349a-48f2-9f74-ff58ce05514e/sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i[30212,30225] [2021-11-23 17:12:22,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:22,688 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:12:22,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:22 WrapperNode [2021-11-23 17:12:22,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:22,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:22,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:12:22,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:12:22,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:22" (1/1) ... [2021-11-23 17:12:22,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:22" (1/1) ... [2021-11-23 17:12:22,747 INFO L137 Inliner]: procedures = 177, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 131 [2021-11-23 17:12:22,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:22,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:12:22,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:12:22,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:12:22,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:22" (1/1) ... [2021-11-23 17:12:22,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:22" (1/1) ... [2021-11-23 17:12:22,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:22" (1/1) ... [2021-11-23 17:12:22,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:22" (1/1) ... [2021-11-23 17:12:22,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:22" (1/1) ... [2021-11-23 17:12:22,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:22" (1/1) ... [2021-11-23 17:12:22,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:22" (1/1) ... [2021-11-23 17:12:22,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:12:22,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:12:22,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:12:22,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:12:22,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:22" (1/1) ... [2021-11-23 17:12:22,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:22,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:12:22,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:12:22,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:12:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:12:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-23 17:12:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:12:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:12:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-23 17:12:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-23 17:12:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:12:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:12:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:12:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 17:12:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:12:22,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:12:22,931 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 17:12:23,096 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:12:23,098 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:12:23,480 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:12:23,491 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:12:23,491 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-23 17:12:23,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:12:23 BoogieIcfgContainer [2021-11-23 17:12:23,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:12:23,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:12:23,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:12:23,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:12:23,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:12:22" (1/3) ... [2021-11-23 17:12:23,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644f97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:12:23, skipping insertion in model container [2021-11-23 17:12:23,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:22" (2/3) ... [2021-11-23 17:12:23,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644f97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:12:23, skipping insertion in model container [2021-11-23 17:12:23,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:12:23" (3/3) ... [2021-11-23 17:12:23,528 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_19-callback_racing.i [2021-11-23 17:12:23,534 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 17:12:23,534 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:12:23,534 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:12:23,534 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 17:12:23,581 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,581 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,581 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,581 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,582 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,582 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,582 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,582 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,582 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,583 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,583 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,583 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,583 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,584 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,584 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,584 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,584 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,585 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,585 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,585 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,585 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,586 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,587 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,588 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 17:12:23,589 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.connectThreadInstances(ThreadInstanceAdder.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:514) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:12:23,593 INFO L158 Benchmark]: Toolchain (without parser) took 1569.85ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 27.9MB in the beginning and 40.3MB in the end (delta: -12.4MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2021-11-23 17:12:23,594 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 52.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:12:23,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 662.94ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 27.7MB in the beginning and 36.8MB in the end (delta: -9.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-11-23 17:12:23,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.12ms. Allocated memory is still 65.0MB. Free memory was 36.8MB in the beginning and 34.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:23,596 INFO L158 Benchmark]: Boogie Preprocessor took 36.38ms. Allocated memory is still 65.0MB. Free memory was 46.8MB in the beginning and 44.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:12:23,597 INFO L158 Benchmark]: RCFGBuilder took 700.07ms. Allocated memory is still 65.0MB. Free memory was 44.9MB in the beginning and 30.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:12:23,598 INFO L158 Benchmark]: TraceAbstraction took 89.91ms. Allocated memory is still 65.0MB. Free memory was 30.3MB in the beginning and 40.3MB in the end (delta: -10.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:12:23,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 52.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 662.94ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 27.7MB in the beginning and 36.8MB in the end (delta: -9.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.12ms. Allocated memory is still 65.0MB. Free memory was 36.8MB in the beginning and 34.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.38ms. Allocated memory is still 65.0MB. Free memory was 46.8MB in the beginning and 44.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 700.07ms. Allocated memory is still 65.0MB. Free memory was 44.9MB in the beginning and 30.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 89.91ms. Allocated memory is still 65.0MB. Free memory was 30.3MB in the beginning and 40.3MB in the end (delta: -10.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:12:23,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3094f15c-349a-48f2-9f74-ff58ce05514e/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