./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8 --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 f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- 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-e04fb08 [2022-11-16 12:25:25,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:25:25,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:25:25,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:25:25,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:25:25,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:25:25,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:25:25,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:25:25,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:25:25,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:25:25,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:25:25,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:25:25,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:25:25,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:25:25,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:25:25,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:25:25,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:25:25,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:25:25,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:25:25,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:25:25,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:25:25,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:25:25,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:25:25,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:25:25,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:25:25,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:25:25,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:25:25,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:25:25,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:25:25,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:25:25,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:25:25,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:25:25,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:25:25,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:25:25,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:25:25,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:25:25,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:25:25,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:25:25,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:25:25,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:25:25,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:25:25,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:25:25,512 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:25:25,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:25:25,513 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:25:25,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:25:25,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:25:25,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:25:25,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:25:25,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:25:25,516 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:25:25,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:25:25,516 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:25:25,517 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:25:25,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:25:25,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:25:25,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:25:25,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:25:25,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:25:25,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:25:25,519 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:25:25,519 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:25:25,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:25:25,519 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:25:25,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:25:25,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:25:25,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:25:25,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:25:25,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:25:25,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:25:25,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:25:25,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:25:25,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:25:25,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:25:25,523 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:25:25,523 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:25:25,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:25:25,523 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_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2022-11-16 12:25:25,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:25:25,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:25:25,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:25:25,840 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:25:25,841 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:25:25,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2022-11-16 12:25:25,921 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/data/08e1170ae/3e0ffb0854cb4c46b9b89bc03178b823/FLAG655e0a294 [2022-11-16 12:25:26,546 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:25:26,546 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2022-11-16 12:25:26,562 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/data/08e1170ae/3e0ffb0854cb4c46b9b89bc03178b823/FLAG655e0a294 [2022-11-16 12:25:26,767 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/data/08e1170ae/3e0ffb0854cb4c46b9b89bc03178b823 [2022-11-16 12:25:26,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:25:26,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:25:26,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:25:26,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:25:26,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:25:26,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4726a2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:26, skipping insertion in model container [2022-11-16 12:25:26,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:25:26" (1/1) ... [2022-11-16 12:25:26,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:25:26,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:25:27,474 WARN L229 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_558f6aa5-9b23-417c-b841-9c8bac0309b1/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2022-11-16 12:25:27,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:25:27,543 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:25:27,575 WARN L229 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_558f6aa5-9b23-417c-b841-9c8bac0309b1/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2022-11-16 12:25:27,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:25:27,712 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:25:27,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:27 WrapperNode [2022-11-16 12:25:27,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:25:27,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:25:27,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:25:27,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:25:27,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:27" (1/1) ... [2022-11-16 12:25:27,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:27" (1/1) ... [2022-11-16 12:25:27,804 INFO L138 Inliner]: procedures = 279, calls = 88, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 589 [2022-11-16 12:25:27,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:25:27,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:25:27,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:25:27,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:25:27,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:27" (1/1) ... [2022-11-16 12:25:27,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:27" (1/1) ... [2022-11-16 12:25:27,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:27" (1/1) ... [2022-11-16 12:25:27,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:27" (1/1) ... [2022-11-16 12:25:27,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:27" (1/1) ... [2022-11-16 12:25:27,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:27" (1/1) ... [2022-11-16 12:25:27,883 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:27" (1/1) ... [2022-11-16 12:25:27,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:27" (1/1) ... [2022-11-16 12:25:27,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:25:27,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:25:27,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:25:27,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:25:27,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:27" (1/1) ... [2022-11-16 12:25:27,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:25:27,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:25:27,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:25:27,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_558f6aa5-9b23-417c-b841-9c8bac0309b1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:25:28,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:25:28,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:25:28,042 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-16 12:25:28,042 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-16 12:25:28,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:25:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:25:28,045 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-16 12:25:28,046 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-16 12:25:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:25:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:25:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:25:28,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:25:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:25:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-11-16 12:25:28,048 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-11-16 12:25:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:25:28,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:25:28,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:25:28,052 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:25:28,397 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:25:28,400 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:25:29,566 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:25:29,590 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:25:29,590 INFO L300 CfgBuilder]: Removed 29 assume(true) statements. [2022-11-16 12:25:29,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:25:29 BoogieIcfgContainer [2022-11-16 12:25:29,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:25:29,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:25:29,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:25:29,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:25:29,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:25:26" (1/3) ... [2022-11-16 12:25:29,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1ce731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:25:29, skipping insertion in model container [2022-11-16 12:25:29,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:25:27" (2/3) ... [2022-11-16 12:25:29,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1ce731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:25:29, skipping insertion in model container [2022-11-16 12:25:29,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:25:29" (3/3) ... [2022-11-16 12:25:29,602 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2022-11-16 12:25:29,612 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:25:29,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:25:29,623 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2022-11-16 12:25:29,623 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:25:29,783 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-11-16 12:25:29,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 618 places, 660 transitions, 1362 flow [2022-11-16 12:25:31,364 INFO L130 PetriNetUnfolder]: 189/2316 cut-off events. [2022-11-16 12:25:31,364 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-16 12:25:31,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2377 conditions, 2316 events. 189/2316 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 16893 event pairs, 0 based on Foata normal form. 0/1982 useless extension candidates. Maximal degree in co-relation 1180. Up to 16 conditions per place. [2022-11-16 12:25:31,443 INFO L82 GeneralOperation]: Start removeDead. Operand has 618 places, 660 transitions, 1362 flow [2022-11-16 12:25:31,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 618 places, 660 transitions, 1362 flow [2022-11-16 12:25:31,516 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:25:31,530 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;@68a5e151, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:25:31,531 INFO L358 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2022-11-16 12:25:31,538 INFO L130 PetriNetUnfolder]: 0/46 cut-off events. [2022-11-16 12:25:31,539 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:25:31,539 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:25:31,541 INFO L209 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] [2022-11-16 12:25:31,541 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2022-11-16 12:25:31,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:31,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1315022036, now seen corresponding path program 1 times [2022-11-16 12:25:31,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:31,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490563391] [2022-11-16 12:25:31,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:31,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:25:32,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:32,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490563391] [2022-11-16 12:25:32,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490563391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:32,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:32,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:25:32,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603829121] [2022-11-16 12:25:32,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:32,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:25:32,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:32,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:25:32,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:25:32,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 597 out of 660 [2022-11-16 12:25:32,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 660 transitions, 1362 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 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) [2022-11-16 12:25:32,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:25:32,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 597 of 660 [2022-11-16 12:25:32,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:25:36,668 INFO L130 PetriNetUnfolder]: 553/9904 cut-off events. [2022-11-16 12:25:36,668 INFO L131 PetriNetUnfolder]: For 562/928 co-relation queries the response was YES. [2022-11-16 12:25:36,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10812 conditions, 9904 events. 553/9904 cut-off events. For 562/928 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 106309 event pairs, 330 based on Foata normal form. 920/9670 useless extension candidates. Maximal degree in co-relation 7992. Up to 683 conditions per place. [2022-11-16 12:25:37,057 INFO L137 encePairwiseOnDemand]: 626/660 looper letters, 27 selfloop transitions, 2 changer transitions 0/626 dead transitions. [2022-11-16 12:25:37,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 617 places, 626 transitions, 1352 flow [2022-11-16 12:25:37,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:25:37,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:25:37,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1852 transitions. [2022-11-16 12:25:37,084 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9353535353535354 [2022-11-16 12:25:37,085 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1852 transitions. [2022-11-16 12:25:37,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1852 transitions. [2022-11-16 12:25:37,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:25:37,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1852 transitions. [2022-11-16 12:25:37,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 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) [2022-11-16 12:25:37,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 660.0) internal successors, (2640), 4 states have internal predecessors, (2640), 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) [2022-11-16 12:25:37,120 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 660.0) internal successors, (2640), 4 states have internal predecessors, (2640), 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) [2022-11-16 12:25:37,123 INFO L175 Difference]: Start difference. First operand has 618 places, 660 transitions, 1362 flow. Second operand 3 states and 1852 transitions. [2022-11-16 12:25:37,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 617 places, 626 transitions, 1352 flow [2022-11-16 12:25:37,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 626 transitions, 1352 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:25:37,268 INFO L231 Difference]: Finished difference. Result has 617 places, 626 transitions, 1298 flow [2022-11-16 12:25:37,272 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=660, PETRI_DIFFERENCE_MINUEND_FLOW=1294, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=624, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1298, PETRI_PLACES=617, PETRI_TRANSITIONS=626} [2022-11-16 12:25:37,276 INFO L288 CegarLoopForPetriNet]: 618 programPoint places, -1 predicate places. [2022-11-16 12:25:37,277 INFO L495 AbstractCegarLoop]: Abstraction has has 617 places, 626 transitions, 1298 flow [2022-11-16 12:25:37,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 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) [2022-11-16 12:25:37,279 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:25:37,279 INFO L209 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] [2022-11-16 12:25:37,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:25:37,280 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2022-11-16 12:25:37,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:37,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1245962151, now seen corresponding path program 1 times [2022-11-16 12:25:37,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:37,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835031641] [2022-11-16 12:25:37,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:37,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:37,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:25:37,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:37,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835031641] [2022-11-16 12:25:37,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835031641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:37,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:37,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:25:37,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656670000] [2022-11-16 12:25:37,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:37,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:25:37,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:37,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:25:37,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:25:37,369 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 600 out of 660 [2022-11-16 12:25:37,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 626 transitions, 1298 flow. Second operand has 3 states, 3 states have (on average 601.3333333333334) internal successors, (1804), 3 states have internal predecessors, (1804), 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) [2022-11-16 12:25:37,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:25:37,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 600 of 660 [2022-11-16 12:25:37,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:25:40,673 INFO L130 PetriNetUnfolder]: 360/8274 cut-off events. [2022-11-16 12:25:40,673 INFO L131 PetriNetUnfolder]: For 430/574 co-relation queries the response was YES. [2022-11-16 12:25:40,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8819 conditions, 8274 events. 360/8274 cut-off events. For 430/574 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 82933 event pairs, 146 based on Foata normal form. 0/7456 useless extension candidates. Maximal degree in co-relation 8760. Up to 363 conditions per place. [2022-11-16 12:25:40,836 INFO L137 encePairwiseOnDemand]: 655/660 looper letters, 21 selfloop transitions, 1 changer transitions 0/622 dead transitions. [2022-11-16 12:25:40,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 615 places, 622 transitions, 1334 flow [2022-11-16 12:25:40,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:25:40,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:25:40,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1826 transitions. [2022-11-16 12:25:40,842 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9222222222222223 [2022-11-16 12:25:40,842 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1826 transitions. [2022-11-16 12:25:40,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1826 transitions. [2022-11-16 12:25:40,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:25:40,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1826 transitions. [2022-11-16 12:25:40,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 608.6666666666666) internal successors, (1826), 3 states have internal predecessors, (1826), 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) [2022-11-16 12:25:40,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 660.0) internal successors, (2640), 4 states have internal predecessors, (2640), 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) [2022-11-16 12:25:40,856 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 660.0) internal successors, (2640), 4 states have internal predecessors, (2640), 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) [2022-11-16 12:25:40,856 INFO L175 Difference]: Start difference. First operand has 617 places, 626 transitions, 1298 flow. Second operand 3 states and 1826 transitions. [2022-11-16 12:25:40,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 615 places, 622 transitions, 1334 flow [2022-11-16 12:25:40,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 613 places, 622 transitions, 1330 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:25:40,870 INFO L231 Difference]: Finished difference. Result has 613 places, 622 transitions, 1288 flow [2022-11-16 12:25:40,871 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=660, PETRI_DIFFERENCE_MINUEND_FLOW=1286, PETRI_DIFFERENCE_MINUEND_PLACES=611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1288, PETRI_PLACES=613, PETRI_TRANSITIONS=622} [2022-11-16 12:25:40,872 INFO L288 CegarLoopForPetriNet]: 618 programPoint places, -5 predicate places. [2022-11-16 12:25:40,872 INFO L495 AbstractCegarLoop]: Abstraction has has 613 places, 622 transitions, 1288 flow [2022-11-16 12:25:40,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 601.3333333333334) internal successors, (1804), 3 states have internal predecessors, (1804), 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) [2022-11-16 12:25:40,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:25:40,874 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:40,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:25:40,875 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2022-11-16 12:25:40,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:40,876 INFO L85 PathProgramCache]: Analyzing trace with hash -610979226, now seen corresponding path program 1 times [2022-11-16 12:25:40,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:40,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816608759] [2022-11-16 12:25:40,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:40,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:41,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:25:41,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:41,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816608759] [2022-11-16 12:25:41,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816608759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:41,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:41,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:25:41,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896506392] [2022-11-16 12:25:41,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:41,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:25:41,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:41,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:25:41,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:25:41,672 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 660 [2022-11-16 12:25:41,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 622 transitions, 1288 flow. Second operand has 6 states, 6 states have (on average 418.5) internal successors, (2511), 6 states have internal predecessors, (2511), 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) [2022-11-16 12:25:41,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:25:41,677 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 660 [2022-11-16 12:25:41,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand