./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d --- 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-b5237d8 [2022-11-21 09:04:11,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:04:11,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:04:12,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:04:12,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:04:12,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:04:12,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:04:12,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:04:12,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:04:12,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:04:12,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:04:12,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:04:12,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:04:12,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:04:12,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:04:12,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:04:12,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:04:12,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:04:12,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:04:12,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:04:12,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:04:12,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:04:12,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:04:12,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:04:12,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:04:12,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:04:12,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:04:12,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:04:12,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:04:12,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:04:12,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:04:12,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:04:12,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:04:12,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:04:12,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:04:12,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:04:12,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:04:12,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:04:12,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:04:12,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:04:12,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:04:12,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 09:04:12,117 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:04:12,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:04:12,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:04:12,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:04:12,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:04:12,120 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:04:12,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:04:12,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:04:12,121 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:04:12,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:04:12,122 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:04:12,123 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:04:12,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:04:12,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:04:12,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:04:12,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:04:12,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:04:12,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:04:12,124 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 09:04:12,124 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:04:12,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:04:12,125 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:04:12,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:04:12,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:04:12,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:04:12,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:04:12,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:04:12,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:04:12,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:04:12,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:04:12,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:04:12,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:04:12,128 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:04:12,128 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:04:12,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:04:12,128 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_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d [2022-11-21 09:04:12,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:04:12,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:04:12,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:04:12,428 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:04:12,429 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:04:12,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2022-11-21 09:04:15,455 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:04:15,735 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:04:15,735 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2022-11-21 09:04:15,751 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a/data/ffd9822ea/46281c581e594e049d2fa5eca8fdacbd/FLAGe31466bf8 [2022-11-21 09:04:15,770 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a/data/ffd9822ea/46281c581e594e049d2fa5eca8fdacbd [2022-11-21 09:04:15,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:04:15,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:04:15,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:04:15,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:04:15,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:04:15,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:04:15" (1/1) ... [2022-11-21 09:04:15,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a662c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:15, skipping insertion in model container [2022-11-21 09:04:15,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:04:15" (1/1) ... [2022-11-21 09:04:15,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:04:15,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:04:15,969 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 09:04:16,224 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[30448,30461] [2022-11-21 09:04:16,249 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[30811,30824] [2022-11-21 09:04:16,278 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31483,31496] [2022-11-21 09:04:16,279 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31534,31547] [2022-11-21 09:04:16,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31683,31696] [2022-11-21 09:04:16,287 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31760,31773] [2022-11-21 09:04:16,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31807,31820] [2022-11-21 09:04:16,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31916,31929] [2022-11-21 09:04:16,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32035,32048] [2022-11-21 09:04:16,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32083,32096] [2022-11-21 09:04:16,298 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32160,32173] [2022-11-21 09:04:16,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32286,32299] [2022-11-21 09:04:16,313 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32869,32882] [2022-11-21 09:04:16,314 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32946,32959] [2022-11-21 09:04:16,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:04:16,334 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:04:16,355 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 09:04:16,374 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[30448,30461] [2022-11-21 09:04:16,380 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[30811,30824] [2022-11-21 09:04:16,399 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31483,31496] [2022-11-21 09:04:16,400 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31534,31547] [2022-11-21 09:04:16,402 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31683,31696] [2022-11-21 09:04:16,408 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31760,31773] [2022-11-21 09:04:16,409 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31807,31820] [2022-11-21 09:04:16,411 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[31916,31929] [2022-11-21 09:04:16,413 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32035,32048] [2022-11-21 09:04:16,414 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32083,32096] [2022-11-21 09:04:16,415 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32160,32173] [2022-11-21 09:04:16,417 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32286,32299] [2022-11-21 09:04:16,426 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32869,32882] [2022-11-21 09:04:16,428 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i[32946,32959] [2022-11-21 09:04:16,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:04:16,467 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:04:16,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:16 WrapperNode [2022-11-21 09:04:16,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:04:16,469 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:04:16,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:04:16,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:04:16,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:16" (1/1) ... [2022-11-21 09:04:16,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:16" (1/1) ... [2022-11-21 09:04:16,574 INFO L138 Inliner]: procedures = 174, calls = 70, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 781 [2022-11-21 09:04:16,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:04:16,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:04:16,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:04:16,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:04:16,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:16" (1/1) ... [2022-11-21 09:04:16,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:16" (1/1) ... [2022-11-21 09:04:16,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:16" (1/1) ... [2022-11-21 09:04:16,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:16" (1/1) ... [2022-11-21 09:04:16,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:16" (1/1) ... [2022-11-21 09:04:16,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:16" (1/1) ... [2022-11-21 09:04:16,735 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:16" (1/1) ... [2022-11-21 09:04:16,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:16" (1/1) ... [2022-11-21 09:04:16,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:04:16,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:04:16,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:04:16,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:04:16,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:16" (1/1) ... [2022-11-21 09:04:16,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:04:16,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:16,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:04:16,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34edd882-5a31-4c81-be12-db9b4b2bd102/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:04:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:04:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:04:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 09:04:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-11-21 09:04:16,841 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-11-21 09:04:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:04:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 09:04:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:04:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 09:04:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:04:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:04:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:04:16,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:04:16,846 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 09:04:17,044 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:04:17,047 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:04:18,495 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:04:18,509 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:04:18,509 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-21 09:04:18,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:18 BoogieIcfgContainer [2022-11-21 09:04:18,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:04:18,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:04:18,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:04:18,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:04:18,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:04:15" (1/3) ... [2022-11-21 09:04:18,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729e8067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:04:18, skipping insertion in model container [2022-11-21 09:04:18,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:16" (2/3) ... [2022-11-21 09:04:18,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729e8067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:04:18, skipping insertion in model container [2022-11-21 09:04:18,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:18" (3/3) ... [2022-11-21 09:04:18,522 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_2t.i [2022-11-21 09:04:18,532 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 09:04:18,544 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:04:18,544 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2022-11-21 09:04:18,544 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 09:04:18,763 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-21 09:04:18,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 839 places, 898 transitions, 1804 flow [2022-11-21 09:04:19,626 INFO L130 PetriNetUnfolder]: 94/1320 cut-off events. [2022-11-21 09:04:19,626 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 09:04:19,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1326 conditions, 1320 events. 94/1320 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4488 event pairs, 0 based on Foata normal form. 0/1110 useless extension candidates. Maximal degree in co-relation 792. Up to 4 conditions per place. [2022-11-21 09:04:19,667 INFO L82 GeneralOperation]: Start removeDead. Operand has 839 places, 898 transitions, 1804 flow [2022-11-21 09:04:19,698 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 839 places, 898 transitions, 1804 flow [2022-11-21 09:04:19,715 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:04:19,721 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b478fd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:04:19,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2022-11-21 09:04:19,728 INFO L130 PetriNetUnfolder]: 2/54 cut-off events. [2022-11-21 09:04:19,728 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 09:04:19,729 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:19,729 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:19,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-21 09:04:19,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:19,735 INFO L85 PathProgramCache]: Analyzing trace with hash 656819321, now seen corresponding path program 1 times [2022-11-21 09:04:19,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:19,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895725479] [2022-11-21 09:04:19,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:19,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:20,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:20,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:20,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895725479] [2022-11-21 09:04:20,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895725479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:20,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:20,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:04:20,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078392687] [2022-11-21 09:04:20,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:20,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:04:20,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:20,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:04:20,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:04:20,725 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 478 out of 898 [2022-11-21 09:04:20,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 839 places, 898 transitions, 1804 flow. Second operand has 6 states, 6 states have (on average 479.8333333333333) internal successors, (2879), 6 states have internal predecessors, (2879), 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) [2022-11-21 09:04:20,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:20,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 478 of 898 [2022-11-21 09:04:20,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:44,618 INFO L130 PetriNetUnfolder]: 31092/97439 cut-off events. [2022-11-21 09:04:44,618 INFO L131 PetriNetUnfolder]: For 4/9 co-relation queries the response was YES. [2022-11-21 09:04:44,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155071 conditions, 97439 events. 31092/97439 cut-off events. For 4/9 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 1050772 event pairs, 27666 based on Foata normal form. 7762/88107 useless extension candidates. Maximal degree in co-relation 154345. Up to 57621 conditions per place. [2022-11-21 09:04:45,101 INFO L137 encePairwiseOnDemand]: 849/898 looper letters, 371 selfloop transitions, 5 changer transitions 1/854 dead transitions. [2022-11-21 09:04:45,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 843 places, 854 transitions, 2468 flow [2022-11-21 09:04:45,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:04:45,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 09:04:45,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3288 transitions. [2022-11-21 09:04:45,130 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6102449888641426 [2022-11-21 09:04:45,131 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3288 transitions. [2022-11-21 09:04:45,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3288 transitions. [2022-11-21 09:04:45,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:45,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3288 transitions. [2022-11-21 09:04:45,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 548.0) internal successors, (3288), 6 states have internal predecessors, (3288), 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) [2022-11-21 09:04:45,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 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) [2022-11-21 09:04:45,179 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 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) [2022-11-21 09:04:45,181 INFO L175 Difference]: Start difference. First operand has 839 places, 898 transitions, 1804 flow. Second operand 6 states and 3288 transitions. [2022-11-21 09:04:45,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 843 places, 854 transitions, 2468 flow [2022-11-21 09:04:45,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 843 places, 854 transitions, 2468 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 09:04:45,219 INFO L231 Difference]: Finished difference. Result has 843 places, 853 transitions, 1724 flow [2022-11-21 09:04:45,222 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=1716, PETRI_DIFFERENCE_MINUEND_PLACES=838, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=854, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=849, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1724, PETRI_PLACES=843, PETRI_TRANSITIONS=853} [2022-11-21 09:04:45,228 INFO L288 CegarLoopForPetriNet]: 839 programPoint places, 4 predicate places. [2022-11-21 09:04:45,233 INFO L495 AbstractCegarLoop]: Abstraction has has 843 places, 853 transitions, 1724 flow [2022-11-21 09:04:45,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 479.8333333333333) internal successors, (2879), 6 states have internal predecessors, (2879), 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) [2022-11-21 09:04:45,236 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:45,236 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:45,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:04:45,237 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-21 09:04:45,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:45,238 INFO L85 PathProgramCache]: Analyzing trace with hash 50407119, now seen corresponding path program 1 times [2022-11-21 09:04:45,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:45,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777199957] [2022-11-21 09:04:45,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:45,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:45,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:45,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:45,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777199957] [2022-11-21 09:04:45,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777199957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:45,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:45,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:04:45,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123157522] [2022-11-21 09:04:45,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:45,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:04:45,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:45,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:45,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:45,353 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 826 out of 898 [2022-11-21 09:04:45,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 843 places, 853 transitions, 1724 flow. Second operand has 3 states, 3 states have (on average 827.0) internal successors, (2481), 3 states have internal predecessors, (2481), 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) [2022-11-21 09:04:45,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:45,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 826 of 898 [2022-11-21 09:04:45,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:04:45,820 INFO L130 PetriNetUnfolder]: 28/1281 cut-off events. [2022-11-21 09:04:45,820 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-21 09:04:45,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1350 conditions, 1281 events. 28/1281 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4467 event pairs, 0 based on Foata normal form. 0/1096 useless extension candidates. Maximal degree in co-relation 1235. Up to 29 conditions per place. [2022-11-21 09:04:45,847 INFO L137 encePairwiseOnDemand]: 895/898 looper letters, 49 selfloop transitions, 2 changer transitions 0/876 dead transitions. [2022-11-21 09:04:45,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 844 places, 876 transitions, 1880 flow [2022-11-21 09:04:45,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:45,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:04:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2530 transitions. [2022-11-21 09:04:45,854 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9391239792130661 [2022-11-21 09:04:45,854 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2530 transitions. [2022-11-21 09:04:45,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2530 transitions. [2022-11-21 09:04:45,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:45,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2530 transitions. [2022-11-21 09:04:45,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 843.3333333333334) internal successors, (2530), 3 states have internal predecessors, (2530), 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) [2022-11-21 09:04:45,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2022-11-21 09:04:45,871 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2022-11-21 09:04:45,871 INFO L175 Difference]: Start difference. First operand has 843 places, 853 transitions, 1724 flow. Second operand 3 states and 2530 transitions. [2022-11-21 09:04:45,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 844 places, 876 transitions, 1880 flow [2022-11-21 09:04:45,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 839 places, 876 transitions, 1862 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 09:04:46,094 INFO L231 Difference]: Finished difference. Result has 840 places, 854 transitions, 1726 flow [2022-11-21 09:04:46,099 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=1714, PETRI_DIFFERENCE_MINUEND_PLACES=837, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=853, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=851, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1726, PETRI_PLACES=840, PETRI_TRANSITIONS=854} [2022-11-21 09:04:46,100 INFO L288 CegarLoopForPetriNet]: 839 programPoint places, 1 predicate places. [2022-11-21 09:04:46,101 INFO L495 AbstractCegarLoop]: Abstraction has has 840 places, 854 transitions, 1726 flow [2022-11-21 09:04:46,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 827.0) internal successors, (2481), 3 states have internal predecessors, (2481), 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) [2022-11-21 09:04:46,103 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:04:46,103 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:46,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:04:46,104 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-21 09:04:46,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:46,104 INFO L85 PathProgramCache]: Analyzing trace with hash 197198252, now seen corresponding path program 1 times [2022-11-21 09:04:46,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:46,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139162118] [2022-11-21 09:04:46,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:46,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:46,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:46,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:46,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139162118] [2022-11-21 09:04:46,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139162118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:46,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:46,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:04:46,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001880578] [2022-11-21 09:04:46,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:46,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:04:46,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:46,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:04:46,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:04:46,563 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 478 out of 898 [2022-11-21 09:04:46,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 840 places, 854 transitions, 1726 flow. Second operand has 6 states, 6 states have (on average 480.8333333333333) internal successors, (2885), 6 states have internal predecessors, (2885), 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) [2022-11-21 09:04:46,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:04:46,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 478 of 898 [2022-11-21 09:04:46,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand