./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/reorder_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/reorder_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur --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 c2478eeb4380713960dd80551c9d8e99269809d2bcbd284785221597bb31a471 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:16:12,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:16:12,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:16:12,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:16:12,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:16:12,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:16:12,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:16:12,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:16:12,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:16:12,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:16:12,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:16:12,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:16:12,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:16:12,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:16:12,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:16:12,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:16:12,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:16:12,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:16:12,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:16:12,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:16:12,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:16:12,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:16:12,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:16:12,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:16:12,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:16:12,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:16:12,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:16:12,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:16:12,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:16:12,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:16:12,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:16:12,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:16:12,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:16:12,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:16:12,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:16:12,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:16:12,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:16:12,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:16:12,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:16:12,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:16:12,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:16:12,584 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:16:12,623 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:16:12,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:16:12,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:16:12,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:16:12,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:16:12,625 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:16:12,626 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:16:12,626 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:16:12,626 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:16:12,626 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:16:12,627 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:16:12,628 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:16:12,628 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:16:12,628 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:16:12,628 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:16:12,629 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:16:12,629 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:16:12,629 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:16:12,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:16:12,630 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:16:12,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:16:12,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:16:12,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:16:12,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:16:12,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:16:12,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:16:12,631 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:16:12,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:16:12,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:16:12,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:16:12,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:16:12,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:16:12,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:16:12,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:16:12,633 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:16:12,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:16:12,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:16:12,634 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:16:12,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:16:12,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:16:12,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:16:12,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2478eeb4380713960dd80551c9d8e99269809d2bcbd284785221597bb31a471 [2022-11-25 22:16:12,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:16:12,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:16:12,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:16:12,935 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:16:12,936 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:16:12,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread/reorder_5.i [2022-11-25 22:16:16,096 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:16:16,426 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:16:16,434 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/sv-benchmarks/c/pthread/reorder_5.i [2022-11-25 22:16:16,462 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/data/102641a4f/9e0aede847c34904a9b3e64d7a152b3c/FLAG0dc9a0f5f [2022-11-25 22:16:16,481 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/data/102641a4f/9e0aede847c34904a9b3e64d7a152b3c [2022-11-25 22:16:16,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:16:16,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:16:16,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:16:16,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:16:16,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:16:16,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:16:16" (1/1) ... [2022-11-25 22:16:16,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a17ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:16, skipping insertion in model container [2022-11-25 22:16:16,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:16:16" (1/1) ... [2022-11-25 22:16:16,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:16:16,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:16:17,219 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:16:17,232 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:16:17,237 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:16:17,241 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:16:17,244 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:16:17,249 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:16:17,254 WARN L237 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_58f5305b-4314-47c8-b277-1fb797955037/sv-benchmarks/c/pthread/reorder_5.i[59329,59342] [2022-11-25 22:16:17,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:16:17,271 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:16:17,323 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:16:17,326 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:16:17,328 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:16:17,330 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:16:17,331 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:16:17,334 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:16:17,334 WARN L237 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_58f5305b-4314-47c8-b277-1fb797955037/sv-benchmarks/c/pthread/reorder_5.i[59329,59342] [2022-11-25 22:16:17,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:16:17,415 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:16:17,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:17 WrapperNode [2022-11-25 22:16:17,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:16:17,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:16:17,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:16:17,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:16:17,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:17" (1/1) ... [2022-11-25 22:16:17,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:17" (1/1) ... [2022-11-25 22:16:17,477 INFO L138 Inliner]: procedures = 369, calls = 37, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 136 [2022-11-25 22:16:17,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:16:17,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:16:17,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:16:17,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:16:17,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:17" (1/1) ... [2022-11-25 22:16:17,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:17" (1/1) ... [2022-11-25 22:16:17,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:17" (1/1) ... [2022-11-25 22:16:17,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:17" (1/1) ... [2022-11-25 22:16:17,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:17" (1/1) ... [2022-11-25 22:16:17,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:17" (1/1) ... [2022-11-25 22:16:17,527 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:17" (1/1) ... [2022-11-25 22:16:17,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:17" (1/1) ... [2022-11-25 22:16:17,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:16:17,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:16:17,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:16:17,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:16:17,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:17" (1/1) ... [2022-11-25 22:16:17,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:16:17,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:16:17,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:16:17,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:16:17,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:16:17,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:16:17,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:16:17,615 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-11-25 22:16:17,615 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-11-25 22:16:17,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:16:17,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:16:17,616 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-11-25 22:16:17,616 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-11-25 22:16:17,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:16:17,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:16:17,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:16:17,618 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 22:16:17,787 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:16:17,789 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:16:18,110 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:16:18,118 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:16:18,126 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 22:16:18,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:16:18 BoogieIcfgContainer [2022-11-25 22:16:18,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:16:18,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:16:18,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:16:18,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:16:18,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:16:16" (1/3) ... [2022-11-25 22:16:18,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e61c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:16:18, skipping insertion in model container [2022-11-25 22:16:18,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:17" (2/3) ... [2022-11-25 22:16:18,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e61c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:16:18, skipping insertion in model container [2022-11-25 22:16:18,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:16:18" (3/3) ... [2022-11-25 22:16:18,155 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2022-11-25 22:16:18,186 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 22:16:18,197 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:16:18,206 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:16:18,207 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 22:16:18,298 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-25 22:16:18,333 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:16:18,347 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 158 transitions, 338 flow [2022-11-25 22:16:18,350 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 158 transitions, 338 flow [2022-11-25 22:16:18,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 158 transitions, 338 flow [2022-11-25 22:16:18,483 INFO L130 PetriNetUnfolder]: 35/334 cut-off events. [2022-11-25 22:16:18,484 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-25 22:16:18,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 334 events. 35/334 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1125 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 175. Up to 8 conditions per place. [2022-11-25 22:16:18,506 INFO L119 LiptonReduction]: Number of co-enabled transitions 2234 [2022-11-25 22:16:28,994 INFO L134 LiptonReduction]: Checked pairs total: 3624 [2022-11-25 22:16:28,994 INFO L136 LiptonReduction]: Total number of compositions: 169 [2022-11-25 22:16:29,005 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 27 transitions, 76 flow [2022-11-25 22:16:29,045 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 119 states, 110 states have (on average 2.036363636363636) internal successors, (224), 118 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:16:29,075 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:16:29,084 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77ff3acb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:16:29,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 22:16:29,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 110 states have (on average 2.036363636363636) internal successors, (224), 118 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:16:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:16:29,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:29,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:16:29,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-25 22:16:29,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:29,102 INFO L85 PathProgramCache]: Analyzing trace with hash 562286920, now seen corresponding path program 1 times [2022-11-25 22:16:29,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:29,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125988010] [2022-11-25 22:16:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:29,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:29,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:16:29,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:16:29,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125988010] [2022-11-25 22:16:29,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125988010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:16:29,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:16:29,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:16:29,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776136511] [2022-11-25 22:16:29,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:16:29,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:16:29,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:16:29,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:16:29,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:16:29,547 INFO L87 Difference]: Start difference. First operand has 119 states, 110 states have (on average 2.036363636363636) internal successors, (224), 118 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:16:29,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:16:29,650 INFO L93 Difference]: Finished difference Result 111 states and 194 transitions. [2022-11-25 22:16:29,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:16:29,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 22:16:29,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:16:29,666 INFO L225 Difference]: With dead ends: 111 [2022-11-25 22:16:29,666 INFO L226 Difference]: Without dead ends: 106 [2022-11-25 22:16:29,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:16:29,670 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:16:29,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 8 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:16:29,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-25 22:16:29,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-11-25 22:16:29,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 98 states have (on average 1.9285714285714286) internal successors, (189), 105 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:16:29,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 189 transitions. [2022-11-25 22:16:29,713 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 189 transitions. Word has length 5 [2022-11-25 22:16:29,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:16:29,714 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 189 transitions. [2022-11-25 22:16:29,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:16:29,714 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 189 transitions. [2022-11-25 22:16:29,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:16:29,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:29,715 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-25 22:16:29,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:16:29,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-25 22:16:29,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:29,717 INFO L85 PathProgramCache]: Analyzing trace with hash 263631282, now seen corresponding path program 1 times [2022-11-25 22:16:29,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:29,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027288572] [2022-11-25 22:16:29,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:29,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:16:29,757 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:16:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:16:29,816 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:16:29,817 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:16:29,819 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-11-25 22:16:29,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-11-25 22:16:29,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-25 22:16:29,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-11-25 22:16:29,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:16:29,825 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 22:16:29,827 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 22:16:29,827 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 22:16:29,860 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-25 22:16:29,867 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:16:29,868 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 178 transitions, 404 flow [2022-11-25 22:16:29,868 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 178 transitions, 404 flow [2022-11-25 22:16:29,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 178 transitions, 404 flow [2022-11-25 22:16:30,029 INFO L130 PetriNetUnfolder]: 147/1073 cut-off events. [2022-11-25 22:16:30,029 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-25 22:16:30,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1170 conditions, 1073 events. 147/1073 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5599 event pairs, 2 based on Foata normal form. 0/933 useless extension candidates. Maximal degree in co-relation 625. Up to 32 conditions per place. [2022-11-25 22:16:30,051 INFO L119 LiptonReduction]: Number of co-enabled transitions 5132 [2022-11-25 22:16:43,325 INFO L134 LiptonReduction]: Checked pairs total: 10706 [2022-11-25 22:16:43,325 INFO L136 LiptonReduction]: Total number of compositions: 181 [2022-11-25 22:16:43,326 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 39 transitions, 126 flow [2022-11-25 22:16:43,428 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2267 states, 2228 states have (on average 3.0978456014362656) internal successors, (6902), 2266 states have internal predecessors, (6902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:16:43,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:16:43,431 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77ff3acb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:16:43,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-25 22:16:43,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 2267 states, 2228 states have (on average 3.0978456014362656) internal successors, (6902), 2266 states have internal predecessors, (6902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:16:43,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:16:43,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:43,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:16:43,464 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 22:16:43,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:43,465 INFO L85 PathProgramCache]: Analyzing trace with hash 922026671, now seen corresponding path program 1 times [2022-11-25 22:16:43,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:43,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034544970] [2022-11-25 22:16:43,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:43,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:43,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:16:43,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:16:43,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034544970] [2022-11-25 22:16:43,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034544970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:16:43,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:16:43,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:16:43,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821302037] [2022-11-25 22:16:43,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:16:43,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:16:43,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:16:43,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:16:43,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:16:43,689 INFO L87 Difference]: Start difference. First operand has 2267 states, 2228 states have (on average 3.0978456014362656) internal successors, (6902), 2266 states have internal predecessors, (6902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:16:43,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:16:43,837 INFO L93 Difference]: Finished difference Result 2203 states and 6526 transitions. [2022-11-25 22:16:43,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:16:43,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 22:16:43,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:16:43,863 INFO L225 Difference]: With dead ends: 2203 [2022-11-25 22:16:43,864 INFO L226 Difference]: Without dead ends: 2170 [2022-11-25 22:16:43,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:16:43,865 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 25 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:16:43,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 12 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:16:43,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2022-11-25 22:16:43,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2170. [2022-11-25 22:16:43,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2134 states have (on average 3.036551077788191) internal successors, (6480), 2169 states have internal predecessors, (6480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:16:43,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 6480 transitions. [2022-11-25 22:16:43,978 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 6480 transitions. Word has length 5 [2022-11-25 22:16:43,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:16:43,978 INFO L495 AbstractCegarLoop]: Abstraction has 2170 states and 6480 transitions. [2022-11-25 22:16:43,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:16:43,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 6480 transitions. [2022-11-25 22:16:43,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 22:16:43,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:43,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:16:43,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:16:43,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 22:16:43,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:43,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1087402556, now seen corresponding path program 1 times [2022-11-25 22:16:43,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:43,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109340413] [2022-11-25 22:16:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:43,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:16:44,036 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:16:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:16:44,102 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:16:44,103 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:16:44,104 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-11-25 22:16:44,105 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-11-25 22:16:44,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-11-25 22:16:44,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-11-25 22:16:44,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-11-25 22:16:44,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:16:44,108 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 22:16:44,111 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-11-25 22:16:44,111 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:16:44,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:16:44 BasicIcfg [2022-11-25 22:16:44,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:16:44,148 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:16:44,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:16:44,148 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:16:44,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:16:18" (3/4) ... [2022-11-25 22:16:44,150 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 22:16:44,212 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:16:44,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:16:44,216 INFO L158 Benchmark]: Toolchain (without parser) took 27730.02ms. Allocated memory was 157.3MB in the beginning and 195.0MB in the end (delta: 37.7MB). Free memory was 125.2MB in the beginning and 73.7MB in the end (delta: 51.5MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. [2022-11-25 22:16:44,216 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:16:44,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 928.44ms. Allocated memory is still 157.3MB. Free memory was 124.8MB in the beginning and 85.2MB in the end (delta: 39.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-25 22:16:44,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.00ms. Allocated memory is still 157.3MB. Free memory was 85.2MB in the beginning and 82.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:16:44,217 INFO L158 Benchmark]: Boogie Preprocessor took 54.13ms. Allocated memory is still 157.3MB. Free memory was 82.4MB in the beginning and 80.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:16:44,218 INFO L158 Benchmark]: RCFGBuilder took 606.35ms. Allocated memory is still 157.3MB. Free memory was 80.6MB in the beginning and 63.5MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 22:16:44,218 INFO L158 Benchmark]: TraceAbstraction took 26005.52ms. Allocated memory was 157.3MB in the beginning and 195.0MB in the end (delta: 37.7MB). Free memory was 63.1MB in the beginning and 80.0MB in the end (delta: -16.9MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2022-11-25 22:16:44,218 INFO L158 Benchmark]: Witness Printer took 67.57ms. Allocated memory is still 195.0MB. Free memory was 78.9MB in the beginning and 73.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:16:44,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 928.44ms. Allocated memory is still 157.3MB. Free memory was 124.8MB in the beginning and 85.2MB in the end (delta: 39.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.00ms. Allocated memory is still 157.3MB. Free memory was 85.2MB in the beginning and 82.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.13ms. Allocated memory is still 157.3MB. Free memory was 82.4MB in the beginning and 80.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 606.35ms. Allocated memory is still 157.3MB. Free memory was 80.6MB in the beginning and 63.5MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 26005.52ms. Allocated memory was 157.3MB in the beginning and 195.0MB in the end (delta: 37.7MB). Free memory was 63.1MB in the beginning and 80.0MB in the end (delta: -16.9MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Witness Printer took 67.57ms. Allocated memory is still 195.0MB. Free memory was 78.9MB in the beginning and 73.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.6s, 148 PlacesBefore, 28 PlacesAfterwards, 158 TransitionsBefore, 27 TransitionsAfterwards, 2234 CoEnabledTransitionPairs, 8 FixpointIterations, 53 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 27 ConcurrentYvCompositions, 11 ChoiceCompositions, 169 TotalNumberOfCompositions, 3624 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2783, independent: 2737, independent conditional: 0, independent unconditional: 2737, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1776, independent: 1762, independent conditional: 0, independent unconditional: 1762, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1776, independent: 1762, independent conditional: 0, independent unconditional: 1762, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 38, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2783, independent: 975, independent conditional: 0, independent unconditional: 975, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 1776, unknown conditional: 0, unknown unconditional: 1776] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.5s, 167 PlacesBefore, 40 PlacesAfterwards, 178 TransitionsBefore, 39 TransitionsAfterwards, 5132 CoEnabledTransitionPairs, 8 FixpointIterations, 54 TrivialSequentialCompositions, 80 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 30 ConcurrentYvCompositions, 12 ChoiceCompositions, 181 TotalNumberOfCompositions, 10706 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7809, independent: 7720, independent conditional: 0, independent unconditional: 7720, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3947, independent: 3923, independent conditional: 0, independent unconditional: 3923, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3947, independent: 3917, independent conditional: 0, independent unconditional: 3917, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 55, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7809, independent: 3797, independent conditional: 0, independent unconditional: 3797, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 3947, unknown conditional: 0, unknown unconditional: 3947] , Statistics on independence cache: Total cache size (in pairs): 173, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1284]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1227] 0 static int iSet = 4; [L1228] 0 static int iCheck = 1; [L1229] 0 static int a = 0; [L1230] 0 static int b = 0; [L1237] 0 int i, err; [L1238] COND FALSE 0 !(argc != 1) [L1247] EXPR 0 \read(iSet) [L1247] 0 pthread_t setPool[iSet]; [L1248] EXPR 0 \read(iCheck) [L1248] 0 pthread_t checkPool[iCheck]; [L1249] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=0, argc=3, argv={63:62}, argv={63:62}, b=0, checkPool={13:0}, i=0, iCheck={11:0}, iSet={10:0}, setPool={14:0}] [L1249] EXPR 0 \read(iSet) [L1249] COND TRUE 0 i < iSet [L1250] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=0, argc=3, argv={63:62}, argv={63:62}, b=0, checkPool={13:0}, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=-1, setPool={14:0}] [L1250] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=0, argc=3, argv={63:62}, argv={63:62}, b=0, checkPool={13:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=0, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=-1, setPool={14:0}] [L1277] 1 a = 1 VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}] [L1250] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) [L1249] 0 i++ VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=1, argc=3, argv={63:62}, argv={63:62}, b=0, checkPool={13:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=61, i=1, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1249] EXPR 0 \read(iSet) [L1249] COND FALSE 0 !(i < iSet) [L1255] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=1, argc=3, argv={63:62}, argv={63:62}, b=0, checkPool={13:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=61, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={14:0}] [L1255] EXPR 0 \read(iCheck) [L1255] COND TRUE 0 i < iCheck [L1256-L1257] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=15, \read(iSet)=1, a=1, argc=3, argv={63:62}, argv={63:62}, b=0, checkPool={13:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=61, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, param={0:0}, pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0))=0, setPool={14:0}] [L1282] COND TRUE 2 ! ((a == 0 && b == 0) || (a == 1 && b == -1)) [L1284] 2 reach_error() VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}] - UnprovableResult [Line: 1256]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1250]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 159 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 174 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 14.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 6 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2267occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 22:16:44,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58f5305b-4314-47c8-b277-1fb797955037/bin/utaipan-ByfvJB40ur/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE