./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:56:01,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:56:01,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:56:01,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:56:01,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:56:01,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:56:01,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:56:01,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:56:01,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:56:01,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:56:01,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:56:01,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:56:01,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:56:01,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:56:01,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:56:01,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:56:01,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:56:01,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:56:01,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:56:01,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:56:01,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:56:01,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:56:01,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:56:01,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:56:01,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:56:01,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:56:01,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:56:01,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:56:01,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:56:01,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:56:01,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:56:01,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:56:01,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:56:01,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:56:01,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:56:01,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:56:01,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:56:01,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:56:01,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:56:01,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:56:01,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:56:01,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:56:01,464 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:56:01,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:56:01,465 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:56:01,465 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:56:01,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:56:01,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:56:01,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:56:01,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:56:01,468 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:56:01,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:56:01,469 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:56:01,470 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:56:01,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:56:01,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:56:01,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:56:01,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:56:01,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:56:01,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:56:01,471 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:56:01,472 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:56:01,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:56:01,472 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:56:01,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:56:01,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:56:01,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:56:01,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:56:01,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:56:01,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:56:01,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:56:01,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:56:01,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:56:01,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:56:01,476 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:56:01,476 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:56:01,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:56:01,477 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_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb [2022-11-16 11:56:01,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:56:01,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:56:01,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:56:01,757 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:56:01,758 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:56:01,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2022-11-16 11:56:01,834 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/data/e184b6480/b4e4653c1893420fa322758a3088c2de/FLAG4175da292 [2022-11-16 11:56:02,311 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:56:02,312 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2022-11-16 11:56:02,335 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/data/e184b6480/b4e4653c1893420fa322758a3088c2de/FLAG4175da292 [2022-11-16 11:56:02,798 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/data/e184b6480/b4e4653c1893420fa322758a3088c2de [2022-11-16 11:56:02,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:56:02,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:56:02,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:56:02,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:56:02,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:56:02,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:56:02" (1/1) ... [2022-11-16 11:56:02,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b229d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:02, skipping insertion in model container [2022-11-16 11:56:02,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:56:02" (1/1) ... [2022-11-16 11:56:02,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:56:02,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:56:03,016 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:56:03,183 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[30448,30461] [2022-11-16 11:56:03,198 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[30811,30824] [2022-11-16 11:56:03,221 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31483,31496] [2022-11-16 11:56:03,221 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31534,31547] [2022-11-16 11:56:03,229 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31683,31696] [2022-11-16 11:56:03,231 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31760,31773] [2022-11-16 11:56:03,233 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31807,31820] [2022-11-16 11:56:03,240 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31916,31929] [2022-11-16 11:56:03,244 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32035,32048] [2022-11-16 11:56:03,247 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32083,32096] [2022-11-16 11:56:03,249 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32160,32173] [2022-11-16 11:56:03,254 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32286,32299] [2022-11-16 11:56:03,264 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32897,32910] [2022-11-16 11:56:03,265 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32974,32987] [2022-11-16 11:56:03,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:56:03,281 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:56:03,304 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:56:03,347 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[30448,30461] [2022-11-16 11:56:03,350 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[30811,30824] [2022-11-16 11:56:03,357 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31483,31496] [2022-11-16 11:56:03,358 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31534,31547] [2022-11-16 11:56:03,365 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31683,31696] [2022-11-16 11:56:03,371 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31760,31773] [2022-11-16 11:56:03,371 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31807,31820] [2022-11-16 11:56:03,373 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[31916,31929] [2022-11-16 11:56:03,374 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32035,32048] [2022-11-16 11:56:03,375 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32083,32096] [2022-11-16 11:56:03,376 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32160,32173] [2022-11-16 11:56:03,377 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32286,32299] [2022-11-16 11:56:03,388 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32897,32910] [2022-11-16 11:56:03,390 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i[32974,32987] [2022-11-16 11:56:03,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:56:03,436 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:56:03,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:03 WrapperNode [2022-11-16 11:56:03,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:56:03,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:56:03,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:56:03,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:56:03,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:03" (1/1) ... [2022-11-16 11:56:03,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:03" (1/1) ... [2022-11-16 11:56:03,552 INFO L138 Inliner]: procedures = 174, calls = 73, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 805 [2022-11-16 11:56:03,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:56:03,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:56:03,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:56:03,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:56:03,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:03" (1/1) ... [2022-11-16 11:56:03,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:03" (1/1) ... [2022-11-16 11:56:03,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:03" (1/1) ... [2022-11-16 11:56:03,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:03" (1/1) ... [2022-11-16 11:56:03,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:03" (1/1) ... [2022-11-16 11:56:03,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:03" (1/1) ... [2022-11-16 11:56:03,646 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:03" (1/1) ... [2022-11-16 11:56:03,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:03" (1/1) ... [2022-11-16 11:56:03,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:56:03,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:56:03,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:56:03,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:56:03,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:03" (1/1) ... [2022-11-16 11:56:03,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:56:03,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:56:03,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:56:03,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9bdeef9-2521-438e-8c4d-0628f867f022/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:56:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:56:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:56:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:56:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-11-16 11:56:03,749 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-11-16 11:56:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:56:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:56:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:56:03,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:56:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:56:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:56:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:56:03,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:56:03,752 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:56:03,909 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:56:03,911 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:56:05,345 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:56:05,367 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:56:05,367 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-16 11:56:05,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:56:05 BoogieIcfgContainer [2022-11-16 11:56:05,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:56:05,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:56:05,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:56:05,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:56:05,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:56:02" (1/3) ... [2022-11-16 11:56:05,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1299ff98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:56:05, skipping insertion in model container [2022-11-16 11:56:05,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:03" (2/3) ... [2022-11-16 11:56:05,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1299ff98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:56:05, skipping insertion in model container [2022-11-16 11:56:05,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:56:05" (3/3) ... [2022-11-16 11:56:05,382 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_2t.i [2022-11-16 11:56:05,392 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:56:05,403 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:56:05,403 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-11-16 11:56:05,403 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:56:05,615 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 11:56:05,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 868 places, 928 transitions, 1864 flow [2022-11-16 11:56:06,287 INFO L130 PetriNetUnfolder]: 95/1352 cut-off events. [2022-11-16 11:56:06,287 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:56:06,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1358 conditions, 1352 events. 95/1352 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4534 event pairs, 0 based on Foata normal form. 0/1139 useless extension candidates. Maximal degree in co-relation 794. Up to 4 conditions per place. [2022-11-16 11:56:06,328 INFO L82 GeneralOperation]: Start removeDead. Operand has 868 places, 928 transitions, 1864 flow [2022-11-16 11:56:06,356 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 868 places, 928 transitions, 1864 flow [2022-11-16 11:56:06,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:56:06,385 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;@48000d5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:56:06,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2022-11-16 11:56:06,393 INFO L130 PetriNetUnfolder]: 2/54 cut-off events. [2022-11-16 11:56:06,393 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:56:06,393 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:56:06,394 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] [2022-11-16 11:56:06,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-16 11:56:06,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1026891982, now seen corresponding path program 1 times [2022-11-16 11:56:06,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:06,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691411430] [2022-11-16 11:56:06,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:06,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:07,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:56:07,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:07,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691411430] [2022-11-16 11:56:07,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691411430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:56:07,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:56:07,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:56:07,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787645101] [2022-11-16 11:56:07,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:56:07,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:56:07,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:07,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:56:07,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:56:07,568 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 495 out of 928 [2022-11-16 11:56:07,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 868 places, 928 transitions, 1864 flow. Second operand has 6 states, 6 states have (on average 496.8333333333333) internal successors, (2981), 6 states have internal predecessors, (2981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:56:07,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:56:07,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 495 of 928 [2022-11-16 11:56:07,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:56:30,987 INFO L130 PetriNetUnfolder]: 31092/97788 cut-off events. [2022-11-16 11:56:30,987 INFO L131 PetriNetUnfolder]: For 4/9 co-relation queries the response was YES. [2022-11-16 11:56:31,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155432 conditions, 97788 events. 31092/97788 cut-off events. For 4/9 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 1055804 event pairs, 27666 based on Foata normal form. 7763/88454 useless extension candidates. Maximal degree in co-relation 154665. Up to 57633 conditions per place. [2022-11-16 11:56:31,484 INFO L137 encePairwiseOnDemand]: 878/928 looper letters, 383 selfloop transitions, 5 changer transitions 2/883 dead transitions. [2022-11-16 11:56:31,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 872 places, 883 transitions, 2550 flow [2022-11-16 11:56:31,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:56:31,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:56:31,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3403 transitions. [2022-11-16 11:56:31,516 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6111709770114943 [2022-11-16 11:56:31,517 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3403 transitions. [2022-11-16 11:56:31,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3403 transitions. [2022-11-16 11:56:31,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:56:31,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3403 transitions. [2022-11-16 11:56:31,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 567.1666666666666) internal successors, (3403), 6 states have internal predecessors, (3403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:56:31,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 928.0) internal successors, (6496), 7 states have internal predecessors, (6496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:56:31,571 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 928.0) internal successors, (6496), 7 states have internal predecessors, (6496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:56:31,573 INFO L175 Difference]: Start difference. First operand has 868 places, 928 transitions, 1864 flow. Second operand 6 states and 3403 transitions. [2022-11-16 11:56:31,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 872 places, 883 transitions, 2550 flow [2022-11-16 11:56:31,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 872 places, 883 transitions, 2550 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:56:31,616 INFO L231 Difference]: Finished difference. Result has 872 places, 881 transitions, 1780 flow [2022-11-16 11:56:31,619 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=928, PETRI_DIFFERENCE_MINUEND_FLOW=1774, PETRI_DIFFERENCE_MINUEND_PLACES=867, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=883, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=878, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1780, PETRI_PLACES=872, PETRI_TRANSITIONS=881} [2022-11-16 11:56:31,625 INFO L288 CegarLoopForPetriNet]: 868 programPoint places, 4 predicate places. [2022-11-16 11:56:31,630 INFO L495 AbstractCegarLoop]: Abstraction has has 872 places, 881 transitions, 1780 flow [2022-11-16 11:56:31,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 496.8333333333333) internal successors, (2981), 6 states have internal predecessors, (2981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:56:31,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:56:31,633 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] [2022-11-16 11:56:31,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:56:31,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-16 11:56:31,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:31,634 INFO L85 PathProgramCache]: Analyzing trace with hash -970547050, now seen corresponding path program 1 times [2022-11-16 11:56:31,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:31,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954068609] [2022-11-16 11:56:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:31,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:31,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:56:31,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:31,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954068609] [2022-11-16 11:56:31,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954068609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:56:31,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:56:31,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:56:31,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482649248] [2022-11-16 11:56:31,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:56:31,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:56:31,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:31,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:56:31,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:56:31,741 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 855 out of 928 [2022-11-16 11:56:31,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 872 places, 881 transitions, 1780 flow. Second operand has 3 states, 3 states have (on average 856.0) internal successors, (2568), 3 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:56:31,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:56:31,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 855 of 928 [2022-11-16 11:56:31,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:56:32,314 INFO L130 PetriNetUnfolder]: 28/1311 cut-off events. [2022-11-16 11:56:32,315 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:56:32,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1380 conditions, 1311 events. 28/1311 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4482 event pairs, 0 based on Foata normal form. 0/1124 useless extension candidates. Maximal degree in co-relation 1265. Up to 29 conditions per place. [2022-11-16 11:56:32,357 INFO L137 encePairwiseOnDemand]: 925/928 looper letters, 49 selfloop transitions, 2 changer transitions 0/904 dead transitions. [2022-11-16 11:56:32,357 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 872 places, 904 transitions, 1936 flow [2022-11-16 11:56:32,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:56:32,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:56:32,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2617 transitions. [2022-11-16 11:56:32,365 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9400143678160919 [2022-11-16 11:56:32,365 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2617 transitions. [2022-11-16 11:56:32,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2617 transitions. [2022-11-16 11:56:32,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:56:32,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2617 transitions. [2022-11-16 11:56:32,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 872.3333333333334) internal successors, (2617), 3 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:56:32,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 928.0) internal successors, (3712), 4 states have internal predecessors, (3712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:56:32,384 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 928.0) internal successors, (3712), 4 states have internal predecessors, (3712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:56:32,385 INFO L175 Difference]: Start difference. First operand has 872 places, 881 transitions, 1780 flow. Second operand 3 states and 2617 transitions. [2022-11-16 11:56:32,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 872 places, 904 transitions, 1936 flow [2022-11-16 11:56:32,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 867 places, 904 transitions, 1918 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:56:32,410 INFO L231 Difference]: Finished difference. Result has 868 places, 882 transitions, 1782 flow [2022-11-16 11:56:32,412 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=928, PETRI_DIFFERENCE_MINUEND_FLOW=1770, PETRI_DIFFERENCE_MINUEND_PLACES=865, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=881, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=879, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1782, PETRI_PLACES=868, PETRI_TRANSITIONS=882} [2022-11-16 11:56:32,413 INFO L288 CegarLoopForPetriNet]: 868 programPoint places, 0 predicate places. [2022-11-16 11:56:32,413 INFO L495 AbstractCegarLoop]: Abstraction has has 868 places, 882 transitions, 1782 flow [2022-11-16 11:56:32,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 856.0) internal successors, (2568), 3 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:56:32,415 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:56:32,416 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] [2022-11-16 11:56:32,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:56:32,416 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 110 more)] === [2022-11-16 11:56:32,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:32,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1240335409, now seen corresponding path program 1 times [2022-11-16 11:56:32,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:32,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947637419] [2022-11-16 11:56:32,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:32,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:32,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:56:32,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:32,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947637419] [2022-11-16 11:56:32,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947637419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:56:32,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:56:32,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:56:32,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001950287] [2022-11-16 11:56:32,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:56:32,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:56:32,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:32,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:56:32,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:56:32,978 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 495 out of 928 [2022-11-16 11:56:32,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 868 places, 882 transitions, 1782 flow. Second operand has 6 states, 6 states have (on average 497.8333333333333) internal successors, (2987), 6 states have internal predecessors, (2987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:56:32,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:56:32,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 495 of 928 [2022-11-16 11:56:32,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand