./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 --- 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-5e519f3 [2022-11-02 20:57:16,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:57:16,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:57:16,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:57:16,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:57:16,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:57:16,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:57:16,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:57:16,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:57:16,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:57:16,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:57:16,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:57:16,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:57:16,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:57:16,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:57:16,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:57:16,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:57:16,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:57:16,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:57:16,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:57:16,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:57:16,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:57:16,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:57:16,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:57:16,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:57:16,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:57:16,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:57:16,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:57:16,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:57:16,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:57:16,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:57:16,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:57:16,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:57:16,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:57:16,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:57:16,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:57:16,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:57:16,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:57:16,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:57:16,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:57:16,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:57:16,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:57:16,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:57:16,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:57:16,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:57:16,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:57:16,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:57:16,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:57:16,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:57:16,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:57:16,444 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:57:16,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:57:16,445 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:57:16,445 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:57:16,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:57:16,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:57:16,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:57:16,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:57:16,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:57:16,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:57:16,447 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:57:16,447 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:57:16,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:57:16,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:57:16,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:57:16,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:57:16,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:57:16,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:57:16,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:57:16,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:57:16,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:57:16,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:57:16,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:57:16,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:57:16,450 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:57:16,450 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:57:16,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:57:16,451 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_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 [2022-11-02 20:57:16,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:57:16,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:57:16,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:57:16,815 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:57:16,816 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:57:16,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread/queue.i [2022-11-02 20:57:16,900 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/data/37085b45c/6435db1f8e9a421989f14c67f5e36ff4/FLAG732e2ceb8 [2022-11-02 20:57:17,539 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:57:17,539 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/sv-benchmarks/c/pthread/queue.i [2022-11-02 20:57:17,557 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/data/37085b45c/6435db1f8e9a421989f14c67f5e36ff4/FLAG732e2ceb8 [2022-11-02 20:57:17,797 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/data/37085b45c/6435db1f8e9a421989f14c67f5e36ff4 [2022-11-02 20:57:17,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:57:17,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:57:17,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:57:17,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:57:17,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:57:17,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:57:17" (1/1) ... [2022-11-02 20:57:17,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f0e9909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:17, skipping insertion in model container [2022-11-02 20:57:17,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:57:17" (1/1) ... [2022-11-02 20:57:17,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:57:17,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:57:18,572 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_3ad9534c-0d9b-4428-9e43-b6089f95cb29/sv-benchmarks/c/pthread/queue.i[43284,43297] [2022-11-02 20:57:18,576 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_3ad9534c-0d9b-4428-9e43-b6089f95cb29/sv-benchmarks/c/pthread/queue.i[43491,43504] [2022-11-02 20:57:18,582 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_3ad9534c-0d9b-4428-9e43-b6089f95cb29/sv-benchmarks/c/pthread/queue.i[43772,43785] [2022-11-02 20:57:18,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:57:18,601 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:57:18,654 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_3ad9534c-0d9b-4428-9e43-b6089f95cb29/sv-benchmarks/c/pthread/queue.i[43284,43297] [2022-11-02 20:57:18,656 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_3ad9534c-0d9b-4428-9e43-b6089f95cb29/sv-benchmarks/c/pthread/queue.i[43491,43504] [2022-11-02 20:57:18,660 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_3ad9534c-0d9b-4428-9e43-b6089f95cb29/sv-benchmarks/c/pthread/queue.i[43772,43785] [2022-11-02 20:57:18,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:57:18,715 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:57:18,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:18 WrapperNode [2022-11-02 20:57:18,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:57:18,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:57:18,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:57:18,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:57:18,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:18" (1/1) ... [2022-11-02 20:57:18,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:18" (1/1) ... [2022-11-02 20:57:18,801 INFO L138 Inliner]: procedures = 274, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 484 [2022-11-02 20:57:18,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:57:18,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:57:18,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:57:18,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:57:18,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:18" (1/1) ... [2022-11-02 20:57:18,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:18" (1/1) ... [2022-11-02 20:57:18,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:18" (1/1) ... [2022-11-02 20:57:18,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:18" (1/1) ... [2022-11-02 20:57:18,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:18" (1/1) ... [2022-11-02 20:57:18,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:18" (1/1) ... [2022-11-02 20:57:18,866 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:18" (1/1) ... [2022-11-02 20:57:18,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:18" (1/1) ... [2022-11-02 20:57:18,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:57:18,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:57:18,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:57:18,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:57:18,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:18" (1/1) ... [2022-11-02 20:57:18,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:57:18,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:57:18,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:57:18,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad9534c-0d9b-4428-9e43-b6089f95cb29/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:57:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-02 20:57:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-02 20:57:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-02 20:57:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-02 20:57:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:57:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:57:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:57:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:57:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:57:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:57:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:57:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:57:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:57:18,986 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:57:19,204 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:57:19,220 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:57:20,058 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:57:20,068 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:57:20,069 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:57:20,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:57:20 BoogieIcfgContainer [2022-11-02 20:57:20,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:57:20,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:57:20,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:57:20,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:57:20,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:57:17" (1/3) ... [2022-11-02 20:57:20,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d231784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:57:20, skipping insertion in model container [2022-11-02 20:57:20,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:57:18" (2/3) ... [2022-11-02 20:57:20,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d231784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:57:20, skipping insertion in model container [2022-11-02 20:57:20,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:57:20" (3/3) ... [2022-11-02 20:57:20,081 INFO L112 eAbstractionObserver]: Analyzing ICFG queue.i [2022-11-02 20:57:20,090 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:57:20,101 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:57:20,101 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-11-02 20:57:20,101 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:57:20,269 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:57:20,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 547 places, 555 transitions, 1126 flow [2022-11-02 20:57:20,691 INFO L130 PetriNetUnfolder]: 15/553 cut-off events. [2022-11-02 20:57:20,691 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:57:20,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 553 events. 15/553 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 801 event pairs, 0 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 421. Up to 2 conditions per place. [2022-11-02 20:57:20,710 INFO L82 GeneralOperation]: Start removeDead. Operand has 547 places, 555 transitions, 1126 flow [2022-11-02 20:57:20,728 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 532 places, 539 transitions, 1087 flow [2022-11-02 20:57:20,743 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:57:20,750 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=PETRI_NET, 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;@394d778a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:57:20,750 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-11-02 20:57:20,756 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2022-11-02 20:57:20,771 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:57:20,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:57:20,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:20,772 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-02 20:57:20,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:20,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1947283496, now seen corresponding path program 1 times [2022-11-02 20:57:20,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:20,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838882337] [2022-11-02 20:57:20,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:20,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:21,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:57:21,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:21,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838882337] [2022-11-02 20:57:21,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838882337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:21,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:21,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:57:21,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014522816] [2022-11-02 20:57:21,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:21,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:57:21,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:21,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:57:21,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:57:21,236 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 527 out of 555 [2022-11-02 20:57:21,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 539 transitions, 1087 flow. Second operand has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 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) [2022-11-02 20:57:21,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:57:21,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 527 of 555 [2022-11-02 20:57:21,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:57:21,880 INFO L130 PetriNetUnfolder]: 59/1327 cut-off events. [2022-11-02 20:57:21,880 INFO L131 PetriNetUnfolder]: For 33/34 co-relation queries the response was YES. [2022-11-02 20:57:21,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 1327 events. 59/1327 cut-off events. For 33/34 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5625 event pairs, 27 based on Foata normal form. 22/1184 useless extension candidates. Maximal degree in co-relation 1149. Up to 79 conditions per place. [2022-11-02 20:57:21,900 INFO L137 encePairwiseOnDemand]: 548/555 looper letters, 15 selfloop transitions, 2 changer transitions 0/532 dead transitions. [2022-11-02 20:57:21,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 532 transitions, 1107 flow [2022-11-02 20:57:21,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:57:21,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:57:21,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1603 transitions. [2022-11-02 20:57:21,925 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9627627627627627 [2022-11-02 20:57:21,926 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1603 transitions. [2022-11-02 20:57:21,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1603 transitions. [2022-11-02 20:57:21,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:57:21,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1603 transitions. [2022-11-02 20:57:21,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 534.3333333333334) internal successors, (1603), 3 states have internal predecessors, (1603), 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) [2022-11-02 20:57:21,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 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) [2022-11-02 20:57:21,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 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) [2022-11-02 20:57:21,958 INFO L175 Difference]: Start difference. First operand has 532 places, 539 transitions, 1087 flow. Second operand 3 states and 1603 transitions. [2022-11-02 20:57:21,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 532 transitions, 1107 flow [2022-11-02 20:57:21,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 532 transitions, 1102 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-02 20:57:21,984 INFO L231 Difference]: Finished difference. Result has 528 places, 532 transitions, 1072 flow [2022-11-02 20:57:21,987 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=555, PETRI_DIFFERENCE_MINUEND_FLOW=1068, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1072, PETRI_PLACES=528, PETRI_TRANSITIONS=532} [2022-11-02 20:57:21,991 INFO L287 CegarLoopForPetriNet]: 532 programPoint places, -4 predicate places. [2022-11-02 20:57:21,992 INFO L495 AbstractCegarLoop]: Abstraction has has 528 places, 532 transitions, 1072 flow [2022-11-02 20:57:21,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 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) [2022-11-02 20:57:21,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:57:21,994 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:21,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:57:21,994 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-02 20:57:21,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:21,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1832794917, now seen corresponding path program 1 times [2022-11-02 20:57:21,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:21,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254730236] [2022-11-02 20:57:21,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:21,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:22,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:57:22,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:22,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254730236] [2022-11-02 20:57:22,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254730236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:22,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:22,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:57:22,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538313049] [2022-11-02 20:57:22,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:22,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:57:22,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:22,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:57:22,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:57:22,109 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 527 out of 555 [2022-11-02 20:57:22,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 532 transitions, 1072 flow. Second operand has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 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) [2022-11-02 20:57:22,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:57:22,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 527 of 555 [2022-11-02 20:57:22,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:57:22,741 INFO L130 PetriNetUnfolder]: 71/1704 cut-off events. [2022-11-02 20:57:22,742 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-11-02 20:57:22,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1804 conditions, 1704 events. 71/1704 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 6897 event pairs, 27 based on Foata normal form. 0/1491 useless extension candidates. Maximal degree in co-relation 1762. Up to 85 conditions per place. [2022-11-02 20:57:22,765 INFO L137 encePairwiseOnDemand]: 552/555 looper letters, 15 selfloop transitions, 2 changer transitions 0/531 dead transitions. [2022-11-02 20:57:22,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 531 transitions, 1104 flow [2022-11-02 20:57:22,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:57:22,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:57:22,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1599 transitions. [2022-11-02 20:57:22,771 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9603603603603603 [2022-11-02 20:57:22,771 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1599 transitions. [2022-11-02 20:57:22,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1599 transitions. [2022-11-02 20:57:22,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:57:22,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1599 transitions. [2022-11-02 20:57:22,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 533.0) internal successors, (1599), 3 states have internal predecessors, (1599), 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) [2022-11-02 20:57:22,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 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) [2022-11-02 20:57:22,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 555.0) internal successors, (2220), 4 states have internal predecessors, (2220), 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) [2022-11-02 20:57:22,783 INFO L175 Difference]: Start difference. First operand has 528 places, 532 transitions, 1072 flow. Second operand 3 states and 1599 transitions. [2022-11-02 20:57:22,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 531 transitions, 1104 flow [2022-11-02 20:57:22,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 531 transitions, 1100 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:57:22,794 INFO L231 Difference]: Finished difference. Result has 527 places, 531 transitions, 1070 flow [2022-11-02 20:57:22,795 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=555, PETRI_DIFFERENCE_MINUEND_FLOW=1066, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1070, PETRI_PLACES=527, PETRI_TRANSITIONS=531} [2022-11-02 20:57:22,797 INFO L287 CegarLoopForPetriNet]: 532 programPoint places, -5 predicate places. [2022-11-02 20:57:22,797 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 531 transitions, 1070 flow [2022-11-02 20:57:22,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 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) [2022-11-02 20:57:22,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:57:22,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:22,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:57:22,799 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-02 20:57:22,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:22,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1244380538, now seen corresponding path program 1 times [2022-11-02 20:57:22,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:22,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579382252] [2022-11-02 20:57:22,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:22,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:23,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:57:23,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:23,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579382252] [2022-11-02 20:57:23,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579382252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:23,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:23,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:57:23,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060882011] [2022-11-02 20:57:23,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:23,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:57:23,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:23,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:57:23,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:57:23,391 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 555 [2022-11-02 20:57:23,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 531 transitions, 1070 flow. Second operand has 6 states, 6 states have (on average 320.5) internal successors, (1923), 6 states have internal predecessors, (1923), 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) [2022-11-02 20:57:23,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:57:23,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 555 [2022-11-02 20:57:23,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand