./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:45:23,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:45:23,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:45:23,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:45:23,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:45:23,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:45:23,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:45:23,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:45:23,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:45:23,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:45:23,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:45:23,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:45:23,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:45:23,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:45:23,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:45:23,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:45:23,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:45:23,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:45:23,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:45:23,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:45:23,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:45:23,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:45:23,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:45:23,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:45:23,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:45:23,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:45:23,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:45:23,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:45:23,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:45:23,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:45:23,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:45:23,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:45:23,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:45:23,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:45:23,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:45:23,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:45:23,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:45:23,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:45:23,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:45:23,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:45:23,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:45:23,714 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:45:23,755 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:45:23,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:45:23,756 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:45:23,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:45:23,757 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:45:23,757 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:45:23,757 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:45:23,758 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:45:23,758 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:45:23,758 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:45:23,759 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:45:23,759 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:45:23,759 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:45:23,759 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:45:23,760 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:45:23,760 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:45:23,760 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:45:23,760 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:45:23,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:45:23,762 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:45:23,762 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:45:23,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:45:23,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:45:23,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:45:23,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:45:23,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:45:23,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:45:23,763 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:45:23,764 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:45:23,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:45:23,764 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:45:23,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:45:23,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:45:23,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:45:23,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:45:23,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:45:23,765 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:45:23,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:45:23,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:45:23,766 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:45:23,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:45:23,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:45:23,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:45:23,767 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_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 [2022-11-26 00:45:24,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:45:24,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:45:24,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:45:24,104 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:45:24,104 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:45:24,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-26 00:45:27,019 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:45:27,456 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:45:27,461 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-26 00:45:27,490 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/data/78e189e52/9339e60130fe478ba8e7f53896c9e7e7/FLAGec3d8947c [2022-11-26 00:45:27,507 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/data/78e189e52/9339e60130fe478ba8e7f53896c9e7e7 [2022-11-26 00:45:27,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:45:27,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:45:27,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:45:27,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:45:27,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:45:27,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:45:27" (1/1) ... [2022-11-26 00:45:27,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c00841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:27, skipping insertion in model container [2022-11-26 00:45:27,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:45:27" (1/1) ... [2022-11-26 00:45:27,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:45:27,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:45:28,374 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:45:28,390 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,394 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,402 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,403 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,404 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-26 00:45:28,408 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:45:28,409 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-26 00:45:28,410 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,412 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,414 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,416 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,419 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:45:28,428 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,435 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,439 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,447 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,448 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,449 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,452 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,453 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:45:28,469 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:45:28,515 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:45:28,516 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,517 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,518 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,518 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,519 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-26 00:45:28,520 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:45:28,521 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-26 00:45:28,522 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,522 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,523 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,524 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,526 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:45:28,528 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,529 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,530 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,530 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,532 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,532 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,533 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:45:28,534 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-11-26 00:45:28,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:45:28,692 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:45:28,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:28 WrapperNode [2022-11-26 00:45:28,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:45:28,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:45:28,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:45:28,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:45:28,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:28" (1/1) ... [2022-11-26 00:45:28,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:28" (1/1) ... [2022-11-26 00:45:28,818 INFO L138 Inliner]: procedures = 524, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137 [2022-11-26 00:45:28,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:45:28,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:45:28,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:45:28,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:45:28,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:28" (1/1) ... [2022-11-26 00:45:28,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:28" (1/1) ... [2022-11-26 00:45:28,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:28" (1/1) ... [2022-11-26 00:45:28,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:28" (1/1) ... [2022-11-26 00:45:28,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:28" (1/1) ... [2022-11-26 00:45:28,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:28" (1/1) ... [2022-11-26 00:45:28,906 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:28" (1/1) ... [2022-11-26 00:45:28,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:28" (1/1) ... [2022-11-26 00:45:28,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:45:28,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:45:28,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:45:28,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:45:28,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:28" (1/1) ... [2022-11-26 00:45:28,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:45:28,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:45:28,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:45:29,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:45:29,022 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-11-26 00:45:29,023 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-11-26 00:45:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-26 00:45:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-11-26 00:45:29,024 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-11-26 00:45:29,024 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-11-26 00:45:29,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:45:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:45:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:45:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:45:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:45:29,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:45:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:45:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-26 00:45:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:45:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:45:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:45:29,029 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:45:29,421 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:45:29,424 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:45:29,854 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:45:29,864 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:45:29,865 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-26 00:45:29,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:45:29 BoogieIcfgContainer [2022-11-26 00:45:29,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:45:29,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:45:29,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:45:29,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:45:29,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:45:27" (1/3) ... [2022-11-26 00:45:29,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ac71a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:45:29, skipping insertion in model container [2022-11-26 00:45:29,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:28" (2/3) ... [2022-11-26 00:45:29,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ac71a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:45:29, skipping insertion in model container [2022-11-26 00:45:29,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:45:29" (3/3) ... [2022-11-26 00:45:29,877 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2022-11-26 00:45:29,886 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:45:29,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:45:29,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-26 00:45:29,897 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:45:30,040 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-26 00:45:30,086 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:45:30,106 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 276 transitions, 568 flow [2022-11-26 00:45:30,114 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 276 transitions, 568 flow [2022-11-26 00:45:30,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 276 transitions, 568 flow [2022-11-26 00:45:30,242 INFO L130 PetriNetUnfolder]: 31/274 cut-off events. [2022-11-26 00:45:30,242 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-26 00:45:30,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 274 events. 31/274 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 654 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 173. Up to 5 conditions per place. [2022-11-26 00:45:30,261 INFO L119 LiptonReduction]: Number of co-enabled transitions 19072 [2022-11-26 00:45:43,460 INFO L134 LiptonReduction]: Checked pairs total: 37618 [2022-11-26 00:45:43,460 INFO L136 LiptonReduction]: Total number of compositions: 296 [2022-11-26 00:45:43,469 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 82 transitions, 180 flow [2022-11-26 00:45:43,619 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2342 states, 2195 states have (on average 3.955353075170843) internal successors, (8682), 2341 states have internal predecessors, (8682), 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) [2022-11-26 00:45:43,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:45:43,644 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2458dc84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:45:43,645 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-26 00:45:43,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 2342 states, 2195 states have (on average 3.955353075170843) internal successors, (8682), 2341 states have internal predecessors, (8682), 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) [2022-11-26 00:45:43,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:45:43,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:45:43,660 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:45:43,660 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-26 00:45:43,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:45:43,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1136, now seen corresponding path program 1 times [2022-11-26 00:45:43,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:45:43,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816100852] [2022-11-26 00:45:43,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:45:43,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:45:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:45:43,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:45:43,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:45:43,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816100852] [2022-11-26 00:45:43,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816100852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:45:43,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:45:43,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:45:43,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019459294] [2022-11-26 00:45:43,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:45:43,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:45:43,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:45:43,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:45:43,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:45:43,980 INFO L87 Difference]: Start difference. First operand has 2342 states, 2195 states have (on average 3.955353075170843) internal successors, (8682), 2341 states have internal predecessors, (8682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-26 00:45:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:45:44,116 INFO L93 Difference]: Finished difference Result 1127 states and 3219 transitions. [2022-11-26 00:45:44,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:45:44,119 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-26 00:45:44,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:45:44,149 INFO L225 Difference]: With dead ends: 1127 [2022-11-26 00:45:44,149 INFO L226 Difference]: Without dead ends: 1121 [2022-11-26 00:45:44,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:45:44,155 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:45:44,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:45:44,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2022-11-26 00:45:44,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1121. [2022-11-26 00:45:44,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1073 states have (on average 2.9878844361602983) internal successors, (3206), 1120 states have internal predecessors, (3206), 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) [2022-11-26 00:45:44,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 3206 transitions. [2022-11-26 00:45:44,273 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 3206 transitions. Word has length 1 [2022-11-26 00:45:44,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:45:44,275 INFO L495 AbstractCegarLoop]: Abstraction has 1121 states and 3206 transitions. [2022-11-26 00:45:44,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-26 00:45:44,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 3206 transitions. [2022-11-26 00:45:44,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:45:44,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:45:44,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:45:44,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:45:44,282 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-26 00:45:44,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:45:44,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1030218277, now seen corresponding path program 1 times [2022-11-26 00:45:44,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:45:44,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734474578] [2022-11-26 00:45:44,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:45:44,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:45:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:45:44,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:45:44,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:45:44,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734474578] [2022-11-26 00:45:44,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734474578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:45:44,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:45:44,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:45:44,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310144737] [2022-11-26 00:45:44,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:45:44,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:45:44,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:45:44,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:45:44,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:45:44,686 INFO L87 Difference]: Start difference. First operand 1121 states and 3206 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-26 00:45:44,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:45:44,813 INFO L93 Difference]: Finished difference Result 917 states and 2565 transitions. [2022-11-26 00:45:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:45:44,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-26 00:45:44,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:45:44,821 INFO L225 Difference]: With dead ends: 917 [2022-11-26 00:45:44,821 INFO L226 Difference]: Without dead ends: 917 [2022-11-26 00:45:44,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:45:44,822 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 32 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:45:44,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 39 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:45:44,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-11-26 00:45:44,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 917. [2022-11-26 00:45:44,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 884 states have (on average 2.9015837104072397) internal successors, (2565), 916 states have internal predecessors, (2565), 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) [2022-11-26 00:45:44,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 2565 transitions. [2022-11-26 00:45:44,854 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 2565 transitions. Word has length 6 [2022-11-26 00:45:44,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:45:44,857 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 2565 transitions. [2022-11-26 00:45:44,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-26 00:45:44,858 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 2565 transitions. [2022-11-26 00:45:44,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:45:44,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:45:44,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:45:44,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:45:44,862 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-26 00:45:44,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:45:44,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1931581391, now seen corresponding path program 1 times [2022-11-26 00:45:44,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:45:44,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963989153] [2022-11-26 00:45:44,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:45:44,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:45:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:45:44,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:45:44,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:45:44,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963989153] [2022-11-26 00:45:44,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963989153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:45:44,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:45:44,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:45:44,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182154443] [2022-11-26 00:45:44,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:45:44,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:45:44,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:45:44,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:45:44,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:45:44,965 INFO L87 Difference]: Start difference. First operand 917 states and 2565 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-26 00:45:45,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:45:45,122 INFO L93 Difference]: Finished difference Result 1402 states and 3886 transitions. [2022-11-26 00:45:45,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:45:45,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-26 00:45:45,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:45:45,130 INFO L225 Difference]: With dead ends: 1402 [2022-11-26 00:45:45,131 INFO L226 Difference]: Without dead ends: 1402 [2022-11-26 00:45:45,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:45:45,135 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 33 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:45:45,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 14 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:45:45,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2022-11-26 00:45:45,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 982. [2022-11-26 00:45:45,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 954 states have (on average 2.8259958071278826) internal successors, (2696), 981 states have internal predecessors, (2696), 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) [2022-11-26 00:45:45,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 2696 transitions. [2022-11-26 00:45:45,178 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 2696 transitions. Word has length 7 [2022-11-26 00:45:45,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:45:45,179 INFO L495 AbstractCegarLoop]: Abstraction has 982 states and 2696 transitions. [2022-11-26 00:45:45,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-26 00:45:45,180 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 2696 transitions. [2022-11-26 00:45:45,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:45:45,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:45:45,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:45:45,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:45:45,189 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-26 00:45:45,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:45:45,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1415911845, now seen corresponding path program 1 times [2022-11-26 00:45:45,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:45:45,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433915856] [2022-11-26 00:45:45,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:45:45,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:45:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:45:45,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:45:45,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:45:45,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433915856] [2022-11-26 00:45:45,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433915856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:45:45,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:45:45,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:45:45,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870162724] [2022-11-26 00:45:45,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:45:45,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:45:45,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:45:45,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:45:45,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:45:45,328 INFO L87 Difference]: Start difference. First operand 982 states and 2696 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-26 00:45:45,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:45:45,466 INFO L93 Difference]: Finished difference Result 1007 states and 2771 transitions. [2022-11-26 00:45:45,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:45:45,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-26 00:45:45,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:45:45,473 INFO L225 Difference]: With dead ends: 1007 [2022-11-26 00:45:45,473 INFO L226 Difference]: Without dead ends: 980 [2022-11-26 00:45:45,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:45:45,476 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:45:45,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 17 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:45:45,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2022-11-26 00:45:45,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 980. [2022-11-26 00:45:45,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 957 states have (on average 2.812957157784744) internal successors, (2692), 979 states have internal predecessors, (2692), 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) [2022-11-26 00:45:45,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 2692 transitions. [2022-11-26 00:45:45,509 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 2692 transitions. Word has length 11 [2022-11-26 00:45:45,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:45:45,509 INFO L495 AbstractCegarLoop]: Abstraction has 980 states and 2692 transitions. [2022-11-26 00:45:45,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-26 00:45:45,509 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 2692 transitions. [2022-11-26 00:45:45,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:45:45,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:45:45,512 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:45:45,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:45:45,512 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-26 00:45:45,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:45:45,513 INFO L85 PathProgramCache]: Analyzing trace with hash 672953918, now seen corresponding path program 1 times [2022-11-26 00:45:45,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:45:45,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431197141] [2022-11-26 00:45:45,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:45:45,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:45:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:45:45,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:45:45,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:45:45,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431197141] [2022-11-26 00:45:45,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431197141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:45:45,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:45:45,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:45:45,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534066482] [2022-11-26 00:45:45,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:45:45,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:45:45,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:45:45,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:45:45,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:45:45,746 INFO L87 Difference]: Start difference. First operand 980 states and 2692 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-26 00:45:45,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:45:45,829 INFO L93 Difference]: Finished difference Result 961 states and 2653 transitions. [2022-11-26 00:45:45,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:45:45,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-26 00:45:45,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:45:45,834 INFO L225 Difference]: With dead ends: 961 [2022-11-26 00:45:45,835 INFO L226 Difference]: Without dead ends: 897 [2022-11-26 00:45:45,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:45:45,836 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:45:45,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 34 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:45:45,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-11-26 00:45:45,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 897. [2022-11-26 00:45:45,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 879 states have (on average 2.806598407281001) internal successors, (2467), 896 states have internal predecessors, (2467), 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) [2022-11-26 00:45:45,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 2467 transitions. [2022-11-26 00:45:45,863 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 2467 transitions. Word has length 12 [2022-11-26 00:45:45,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:45:45,864 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 2467 transitions. [2022-11-26 00:45:45,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-26 00:45:45,864 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 2467 transitions. [2022-11-26 00:45:45,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:45:45,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:45:45,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:45:45,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:45:45,866 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting monitor_threadErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-26 00:45:45,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:45:45,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1105173827, now seen corresponding path program 1 times [2022-11-26 00:45:45,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:45:45,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942960908] [2022-11-26 00:45:45,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:45:45,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:45:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:45:45,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:45:45,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:45:45,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942960908] [2022-11-26 00:45:45,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942960908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:45:45,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:45:45,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:45:45,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787795078] [2022-11-26 00:45:45,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:45:45,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:45:45,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:45:45,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:45:45,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:45:45,926 INFO L87 Difference]: Start difference. First operand 897 states and 2467 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-26 00:45:46,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:45:46,030 INFO L93 Difference]: Finished difference Result 908 states and 2499 transitions. [2022-11-26 00:45:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:45:46,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-26 00:45:46,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:45:46,035 INFO L225 Difference]: With dead ends: 908 [2022-11-26 00:45:46,036 INFO L226 Difference]: Without dead ends: 822 [2022-11-26 00:45:46,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:45:46,037 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:45:46,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 17 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:45:46,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-11-26 00:45:46,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2022-11-26 00:45:46,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 808 states have (on average 2.8007425742574257) internal successors, (2263), 821 states have internal predecessors, (2263), 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) [2022-11-26 00:45:46,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 2263 transitions. [2022-11-26 00:45:46,064 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 2263 transitions. Word has length 13 [2022-11-26 00:45:46,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:45:46,064 INFO L495 AbstractCegarLoop]: Abstraction has 822 states and 2263 transitions. [2022-11-26 00:45:46,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-26 00:45:46,064 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 2263 transitions. [2022-11-26 00:45:46,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-26 00:45:46,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:45:46,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:45:46,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:45:46,066 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-26 00:45:46,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:45:46,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1048497473, now seen corresponding path program 1 times [2022-11-26 00:45:46,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:45:46,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084790274] [2022-11-26 00:45:46,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:45:46,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:45:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:45:46,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:45:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:45:46,145 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:45:46,145 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:45:46,146 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2022-11-26 00:45:46,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-11-26 00:45:46,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-11-26 00:45:46,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-11-26 00:45:46,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-11-26 00:45:46,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-11-26 00:45:46,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-11-26 00:45:46,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-11-26 00:45:46,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-11-26 00:45:46,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-11-26 00:45:46,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-11-26 00:45:46,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-11-26 00:45:46,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-11-26 00:45:46,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-11-26 00:45:46,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-11-26 00:45:46,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-11-26 00:45:46,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-11-26 00:45:46,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-11-26 00:45:46,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-11-26 00:45:46,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 31 remaining) [2022-11-26 00:45:46,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2022-11-26 00:45:46,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-11-26 00:45:46,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-11-26 00:45:46,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-11-26 00:45:46,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-11-26 00:45:46,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-11-26 00:45:46,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-11-26 00:45:46,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-11-26 00:45:46,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-11-26 00:45:46,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-11-26 00:45:46,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-11-26 00:45:46,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:45:46,184 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:45:46,190 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:45:46,190 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:45:46,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:45:46 BasicIcfg [2022-11-26 00:45:46,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:45:46,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:45:46,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:45:46,240 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:45:46,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:45:29" (3/4) ... [2022-11-26 00:45:46,253 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:45:46,253 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:45:46,254 INFO L158 Benchmark]: Toolchain (without parser) took 18741.74ms. Allocated memory was 180.4MB in the beginning and 285.2MB in the end (delta: 104.9MB). Free memory was 143.7MB in the beginning and 230.6MB in the end (delta: -86.8MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-11-26 00:45:46,254 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 180.4MB. Free memory was 152.0MB in the beginning and 151.8MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:45:46,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1178.66ms. Allocated memory is still 180.4MB. Free memory was 143.7MB in the beginning and 78.2MB in the end (delta: 65.6MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2022-11-26 00:45:46,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.28ms. Allocated memory is still 180.4MB. Free memory was 78.2MB in the beginning and 146.6MB in the end (delta: -68.5MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-11-26 00:45:46,255 INFO L158 Benchmark]: Boogie Preprocessor took 107.55ms. Allocated memory was 180.4MB in the beginning and 237.0MB in the end (delta: 56.6MB). Free memory was 146.6MB in the beginning and 204.1MB in the end (delta: -57.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-11-26 00:45:46,256 INFO L158 Benchmark]: RCFGBuilder took 940.20ms. Allocated memory is still 237.0MB. Free memory was 204.1MB in the beginning and 174.7MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-26 00:45:46,256 INFO L158 Benchmark]: TraceAbstraction took 16368.94ms. Allocated memory was 237.0MB in the beginning and 285.2MB in the end (delta: 48.2MB). Free memory was 174.7MB in the beginning and 231.6MB in the end (delta: -56.9MB). Peak memory consumption was 143.4MB. Max. memory is 16.1GB. [2022-11-26 00:45:46,256 INFO L158 Benchmark]: Witness Printer took 13.41ms. Allocated memory is still 285.2MB. Free memory was 231.6MB in the beginning and 230.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:45:46,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 180.4MB. Free memory was 152.0MB in the beginning and 151.8MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1178.66ms. Allocated memory is still 180.4MB. Free memory was 143.7MB in the beginning and 78.2MB in the end (delta: 65.6MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.28ms. Allocated memory is still 180.4MB. Free memory was 78.2MB in the beginning and 146.6MB in the end (delta: -68.5MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.55ms. Allocated memory was 180.4MB in the beginning and 237.0MB in the end (delta: 56.6MB). Free memory was 146.6MB in the beginning and 204.1MB in the end (delta: -57.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * RCFGBuilder took 940.20ms. Allocated memory is still 237.0MB. Free memory was 204.1MB in the beginning and 174.7MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 16368.94ms. Allocated memory was 237.0MB in the beginning and 285.2MB in the end (delta: 48.2MB). Free memory was 174.7MB in the beginning and 231.6MB in the end (delta: -56.9MB). Peak memory consumption was 143.4MB. Max. memory is 16.1GB. * Witness Printer took 13.41ms. Allocated memory is still 285.2MB. Free memory was 231.6MB in the beginning and 230.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.3s, 252 PlacesBefore, 67 PlacesAfterwards, 276 TransitionsBefore, 82 TransitionsAfterwards, 19072 CoEnabledTransitionPairs, 7 FixpointIterations, 77 TrivialSequentialCompositions, 162 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 37 ConcurrentYvCompositions, 9 ChoiceCompositions, 296 TotalNumberOfCompositions, 37618 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22527, independent: 22151, independent conditional: 0, independent unconditional: 22151, dependent: 376, dependent conditional: 0, dependent unconditional: 376, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14091, independent: 14000, independent conditional: 0, independent unconditional: 14000, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14091, independent: 13802, independent conditional: 0, independent unconditional: 13802, dependent: 289, dependent conditional: 0, dependent unconditional: 289, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 289, independent: 198, independent conditional: 0, independent unconditional: 198, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 323, independent: 167, independent conditional: 0, independent unconditional: 167, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22527, independent: 8151, independent conditional: 0, independent unconditional: 8151, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 14091, unknown conditional: 0, unknown unconditional: 14091] , Statistics on independence cache: Total cache size (in pairs): 868, Positive cache size: 833, Positive conditional cache size: 0, Positive unconditional cache size: 833, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1808]: Data race detected Data race detected The following path leads to a data race: [L1797] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1798] 0 long counter; [L1799] 0 time_t end_time; [L1836] 0 int status; [L1837] 0 pthread_t counter_thread_id; [L1838] 0 pthread_t monitor_thread_id; [L1839] 0 end_time = time (((void *)0)) + 60 [L1840] EXPR, FCALL, FORK 0 pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1152, arg={0:0}, argc=1152, argv={1150:1151}, argv={1150:1151}, counter=0, counter_thread_id={27:0}, end_time=1, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=-2] [L1801] 1 int status; [L1802] 1 int spin; VAL [arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}] [L1803] 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}, time (((void *)0))=0] [L1840] 0 status = pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) [L1841] COND FALSE 0 !(status != 0) [L1843] FCALL, FORK 0 pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0)) VAL [\old(argc)=1152, arg={0:0}, arg={0:0}, arg={0:0}, argc=1152, argv={1150:1151}, argv={1150:1151}, counter=0, counter_thread_id={27:0}, end_time=1, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0))=-1, status=0, time (((void *)0))=0] [L1803] 1 time (((void *)0)) < end_time [L1803] COND TRUE 1 time (((void *)0)) < end_time [L1804] 1 status = pthread_mutex_lock (&mutex) [L1805] COND FALSE 1 !(status != 0) [L1807] 1 spin = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}, spin=0, status=0] [L1807] COND TRUE 1 spin < 10000000 [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}, spin=0, status=0] [L1817] 2 int status; [L1818] 2 int misses = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=0] [L1819] 2 time (((void *)0)) < end_time [L1819] COND TRUE 2 time (((void *)0)) < end_time [L1821] 2 status = pthread_mutex_trylock (&mutex) [L1822] COND FALSE 2 !(status != 16) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1153, counter++=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1153, counter++=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1153, counter++=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=16, status=0] Now there is a data race on ~counter~0 between C: counter++ [1830] and C: counter++ [1808] - UnprovableResult [Line: 1819]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1824]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1828]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1803]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1806]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1811]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1842]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1845]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1846]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1848]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1849]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1843]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1840]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 359 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 16.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 439 IncrementalHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 99 mSDtfsCounter, 439 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2342occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 420 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-26 00:45:46,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99770ba0-63eb-4b18-8156-8abd56863558/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE