./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R --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 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 18:05:37,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:05:37,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:05:37,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:05:37,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:05:37,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:05:37,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:05:37,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:05:37,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:05:37,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:05:37,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:05:37,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:05:37,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:05:37,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:05:37,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:05:37,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:05:37,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:05:37,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:05:37,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:05:37,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:05:37,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:05:37,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:05:37,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:05:37,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:05:37,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:05:37,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:05:37,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:05:37,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:05:37,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:05:37,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:05:37,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:05:37,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:05:37,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:05:37,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:05:37,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:05:37,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:05:37,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:05:37,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:05:37,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:05:37,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:05:37,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:05:37,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 18:05:37,924 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:05:37,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:05:37,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:05:37,925 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:05:37,926 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:05:37,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:05:37,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:05:37,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:05:37,928 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:05:37,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:05:37,929 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:05:37,929 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:05:37,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:05:37,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:05:37,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:05:37,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:05:37,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:05:37,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:05:37,931 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 18:05:37,931 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:05:37,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:05:37,931 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:05:37,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:05:37,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:05:37,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:05:37,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:05:37,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:05:37,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:05:37,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:05:37,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:05:37,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:05:37,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:05:37,934 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:05:37,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:05:37,935 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:05:37,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:05:37,935 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f [2022-11-25 18:05:38,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:05:38,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:05:38,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:05:38,352 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:05:38,353 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:05:38,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2022-11-25 18:05:41,443 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:05:41,808 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:05:41,813 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2022-11-25 18:05:41,844 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/data/f7beb9627/7f9aa6ad975946b1942fc6990333445c/FLAG19748b1a5 [2022-11-25 18:05:41,870 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/data/f7beb9627/7f9aa6ad975946b1942fc6990333445c [2022-11-25 18:05:41,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:05:41,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:05:41,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:05:41,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:05:41,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:05:41,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:05:41" (1/1) ... [2022-11-25 18:05:41,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec79ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:41, skipping insertion in model container [2022-11-25 18:05:41,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:05:41" (1/1) ... [2022-11-25 18:05:41,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:05:41,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:05:42,162 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:05:42,438 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[30448,30461] [2022-11-25 18:05:42,469 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[30811,30824] [2022-11-25 18:05:42,497 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31483,31496] [2022-11-25 18:05:42,498 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31534,31547] [2022-11-25 18:05:42,501 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31683,31696] [2022-11-25 18:05:42,506 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31760,31773] [2022-11-25 18:05:42,510 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31807,31820] [2022-11-25 18:05:42,512 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31916,31929] [2022-11-25 18:05:42,518 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32035,32048] [2022-11-25 18:05:42,527 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32083,32096] [2022-11-25 18:05:42,529 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32160,32173] [2022-11-25 18:05:42,530 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32286,32299] [2022-11-25 18:05:42,541 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32869,32882] [2022-11-25 18:05:42,545 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32946,32959] [2022-11-25 18:05:42,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:05:42,563 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:05:42,587 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:05:42,628 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[30448,30461] [2022-11-25 18:05:42,641 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[30811,30824] [2022-11-25 18:05:42,653 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31483,31496] [2022-11-25 18:05:42,660 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31534,31547] [2022-11-25 18:05:42,663 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31683,31696] [2022-11-25 18:05:42,665 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31760,31773] [2022-11-25 18:05:42,668 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31807,31820] [2022-11-25 18:05:42,672 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31916,31929] [2022-11-25 18:05:42,676 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32035,32048] [2022-11-25 18:05:42,677 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32083,32096] [2022-11-25 18:05:42,678 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32160,32173] [2022-11-25 18:05:42,680 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32286,32299] [2022-11-25 18:05:42,690 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32869,32882] [2022-11-25 18:05:42,691 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_b385285b-5006-4e7e-b2f5-426fcc6670e0/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32946,32959] [2022-11-25 18:05:42,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:05:42,743 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:05:42,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:42 WrapperNode [2022-11-25 18:05:42,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:05:42,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:05:42,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:05:42,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:05:42,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:42" (1/1) ... [2022-11-25 18:05:42,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:42" (1/1) ... [2022-11-25 18:05:42,879 INFO L138 Inliner]: procedures = 174, calls = 75, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 786 [2022-11-25 18:05:42,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:05:42,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:05:42,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:05:42,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:05:42,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:42" (1/1) ... [2022-11-25 18:05:42,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:42" (1/1) ... [2022-11-25 18:05:42,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:42" (1/1) ... [2022-11-25 18:05:42,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:42" (1/1) ... [2022-11-25 18:05:42,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:42" (1/1) ... [2022-11-25 18:05:42,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:42" (1/1) ... [2022-11-25 18:05:42,987 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:42" (1/1) ... [2022-11-25 18:05:42,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:42" (1/1) ... [2022-11-25 18:05:43,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:05:43,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:05:43,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:05:43,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:05:43,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:42" (1/1) ... [2022-11-25 18:05:43,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:05:43,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:05:43,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:05:43,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:05:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:05:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:05:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 18:05:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-11-25 18:05:43,129 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-11-25 18:05:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:05:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 18:05:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:05:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 18:05:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:05:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:05:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:05:43,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:05:43,136 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:05:43,420 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:05:43,422 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:05:45,175 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:05:45,199 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:05:45,199 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-25 18:05:45,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:05:45 BoogieIcfgContainer [2022-11-25 18:05:45,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:05:45,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:05:45,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:05:45,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:05:45,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:05:41" (1/3) ... [2022-11-25 18:05:45,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c330b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:05:45, skipping insertion in model container [2022-11-25 18:05:45,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:42" (2/3) ... [2022-11-25 18:05:45,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c330b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:05:45, skipping insertion in model container [2022-11-25 18:05:45,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:05:45" (3/3) ... [2022-11-25 18:05:45,220 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_3t.i [2022-11-25 18:05:45,231 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:05:45,243 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:05:45,243 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2022-11-25 18:05:45,244 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:05:45,552 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-25 18:05:45,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 844 places, 903 transitions, 1814 flow [2022-11-25 18:05:46,404 INFO L130 PetriNetUnfolder]: 94/1325 cut-off events. [2022-11-25 18:05:46,404 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 18:05:46,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 1325 events. 94/1325 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4495 event pairs, 0 based on Foata normal form. 0/1115 useless extension candidates. Maximal degree in co-relation 792. Up to 4 conditions per place. [2022-11-25 18:05:46,448 INFO L82 GeneralOperation]: Start removeDead. Operand has 844 places, 903 transitions, 1814 flow [2022-11-25 18:05:46,479 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 844 places, 903 transitions, 1814 flow [2022-11-25 18:05:46,483 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:05:46,509 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 844 places, 903 transitions, 1814 flow [2022-11-25 18:05:46,514 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 844 places, 903 transitions, 1814 flow [2022-11-25 18:05:46,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 844 places, 903 transitions, 1814 flow [2022-11-25 18:05:47,171 INFO L130 PetriNetUnfolder]: 94/1325 cut-off events. [2022-11-25 18:05:47,171 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 18:05:47,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 1325 events. 94/1325 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4495 event pairs, 0 based on Foata normal form. 0/1115 useless extension candidates. Maximal degree in co-relation 792. Up to 4 conditions per place. [2022-11-25 18:05:47,361 INFO L119 LiptonReduction]: Number of co-enabled transitions 312440 [2022-11-25 18:06:36,169 WARN L233 SmtUtils]: Spent 7.25s on a formula simplification. DAG size of input: 120 DAG size of output: 118 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 18:06:47,154 WARN L233 SmtUtils]: Spent 9.10s on a formula simplification. DAG size of input: 129 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 18:07:02,036 INFO L134 LiptonReduction]: Checked pairs total: 5636726 [2022-11-25 18:07:02,036 INFO L136 LiptonReduction]: Total number of compositions: 647 [2022-11-25 18:07:02,054 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:07:02,059 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;@d9010c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:07:02,060 INFO L358 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2022-11-25 18:07:02,063 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-11-25 18:07:02,063 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:07:02,064 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:07:02,064 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 18:07:02,065 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)] === [2022-11-25 18:07:02,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:02,071 INFO L85 PathProgramCache]: Analyzing trace with hash 98055, now seen corresponding path program 1 times [2022-11-25 18:07:02,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:02,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034932672] [2022-11-25 18:07:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:02,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:02,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:02,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034932672] [2022-11-25 18:07:02,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034932672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:02,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:02,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:07:02,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437101593] [2022-11-25 18:07:02,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:02,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:07:02,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:02,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:07:02,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:07:02,319 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 858 out of 1550 [2022-11-25 18:07:02,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 472 transitions, 952 flow. Second operand has 2 states, 2 states have (on average 859.0) internal successors, (1718), 2 states have internal predecessors, (1718), 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) [2022-11-25 18:07:02,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:07:02,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 858 of 1550 [2022-11-25 18:07:02,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:07:06,743 INFO L130 PetriNetUnfolder]: 5346/18981 cut-off events. [2022-11-25 18:07:06,749 INFO L131 PetriNetUnfolder]: For 3/8 co-relation queries the response was YES. [2022-11-25 18:07:06,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28753 conditions, 18981 events. 5346/18981 cut-off events. For 3/8 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 182534 event pairs, 4216 based on Foata normal form. 266/17242 useless extension candidates. Maximal degree in co-relation 28424. Up to 9764 conditions per place. [2022-11-25 18:07:06,878 INFO L137 encePairwiseOnDemand]: 1526/1550 looper letters, 153 selfloop transitions, 0 changer transitions 0/448 dead transitions. [2022-11-25 18:07:06,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 448 transitions, 1210 flow [2022-11-25 18:07:06,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:07:06,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:07:06,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1893 transitions. [2022-11-25 18:07:06,905 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6106451612903225 [2022-11-25 18:07:06,912 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1893 transitions. [2022-11-25 18:07:06,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1893 transitions. [2022-11-25 18:07:06,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:07:06,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1893 transitions. [2022-11-25 18:07:06,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 946.5) internal successors, (1893), 2 states have internal predecessors, (1893), 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) [2022-11-25 18:07:06,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1550.0) internal successors, (4650), 3 states have internal predecessors, (4650), 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) [2022-11-25 18:07:06,951 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1550.0) internal successors, (4650), 3 states have internal predecessors, (4650), 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) [2022-11-25 18:07:06,953 INFO L175 Difference]: Start difference. First operand has 437 places, 472 transitions, 952 flow. Second operand 2 states and 1893 transitions. [2022-11-25 18:07:06,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 448 transitions, 1210 flow [2022-11-25 18:07:06,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 448 transitions, 1210 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:07:06,978 INFO L231 Difference]: Finished difference. Result has 433 places, 448 transitions, 904 flow [2022-11-25 18:07:06,981 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1550, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=904, PETRI_PLACES=433, PETRI_TRANSITIONS=448} [2022-11-25 18:07:06,985 INFO L288 CegarLoopForPetriNet]: 437 programPoint places, -4 predicate places. [2022-11-25 18:07:06,986 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 448 transitions, 904 flow [2022-11-25 18:07:06,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 859.0) internal successors, (1718), 2 states have internal predecessors, (1718), 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) [2022-11-25 18:07:06,987 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:07:06,987 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-25 18:07:06,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:07:06,988 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-25 18:07:07,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:07,001 INFO L85 PathProgramCache]: Analyzing trace with hash -479155616, now seen corresponding path program 1 times [2022-11-25 18:07:07,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:07,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997883390] [2022-11-25 18:07:07,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:07,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:07,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 18:07:07,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:07,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997883390] [2022-11-25 18:07:07,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997883390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:07,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:07,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:07:07,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368642256] [2022-11-25 18:07:07,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:07,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:07:07,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:07,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:07:07,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:07:07,291 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 854 out of 1550 [2022-11-25 18:07:07,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 448 transitions, 904 flow. Second operand has 3 states, 3 states have (on average 855.6666666666666) internal successors, (2567), 3 states have internal predecessors, (2567), 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) [2022-11-25 18:07:07,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:07:07,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 854 of 1550 [2022-11-25 18:07:07,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:07:11,160 INFO L130 PetriNetUnfolder]: 5346/18982 cut-off events. [2022-11-25 18:07:11,160 INFO L131 PetriNetUnfolder]: For 3/8 co-relation queries the response was YES. [2022-11-25 18:07:11,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28756 conditions, 18982 events. 5346/18982 cut-off events. For 3/8 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 182561 event pairs, 4216 based on Foata normal form. 0/16977 useless extension candidates. Maximal degree in co-relation 28752. Up to 9764 conditions per place. [2022-11-25 18:07:11,261 INFO L137 encePairwiseOnDemand]: 1547/1550 looper letters, 152 selfloop transitions, 2 changer transitions 0/449 dead transitions. [2022-11-25 18:07:11,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 449 transitions, 1214 flow [2022-11-25 18:07:11,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:07:11,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:07:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2717 transitions. [2022-11-25 18:07:11,271 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5843010752688172 [2022-11-25 18:07:11,271 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2717 transitions. [2022-11-25 18:07:11,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2717 transitions. [2022-11-25 18:07:11,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:07:11,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2717 transitions. [2022-11-25 18:07:11,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 905.6666666666666) internal successors, (2717), 3 states have internal predecessors, (2717), 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) [2022-11-25 18:07:11,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1550.0) internal successors, (6200), 4 states have internal predecessors, (6200), 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) [2022-11-25 18:07:11,298 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1550.0) internal successors, (6200), 4 states have internal predecessors, (6200), 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) [2022-11-25 18:07:11,299 INFO L175 Difference]: Start difference. First operand has 433 places, 448 transitions, 904 flow. Second operand 3 states and 2717 transitions. [2022-11-25 18:07:11,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 449 transitions, 1214 flow [2022-11-25 18:07:11,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 449 transitions, 1214 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:07:11,312 INFO L231 Difference]: Finished difference. Result has 436 places, 449 transitions, 916 flow [2022-11-25 18:07:11,313 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1550, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=916, PETRI_PLACES=436, PETRI_TRANSITIONS=449} [2022-11-25 18:07:11,315 INFO L288 CegarLoopForPetriNet]: 437 programPoint places, -1 predicate places. [2022-11-25 18:07:11,316 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 449 transitions, 916 flow [2022-11-25 18:07:11,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 855.6666666666666) internal successors, (2567), 3 states have internal predecessors, (2567), 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) [2022-11-25 18:07:11,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:07:11,318 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:11,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:07:11,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-25 18:07:11,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:11,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1178424142, now seen corresponding path program 1 times [2022-11-25 18:07:11,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:11,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426108540] [2022-11-25 18:07:11,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:11,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 18:07:11,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:11,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426108540] [2022-11-25 18:07:11,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426108540] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:07:11,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634832968] [2022-11-25 18:07:11,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:11,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:07:11,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:07:11,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:07:11,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:07:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:11,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:07:11,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:07:11,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 18:07:11,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:07:11,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 18:07:11,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634832968] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:07:11,799 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:07:11,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-25 18:07:11,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239819904] [2022-11-25 18:07:11,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:07:11,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:07:11,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:11,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:07:11,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:07:11,954 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 853 out of 1550 [2022-11-25 18:07:11,961 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 449 transitions, 916 flow. Second operand has 6 states, 6 states have (on average 854.8333333333334) internal successors, (5129), 6 states have internal predecessors, (5129), 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) [2022-11-25 18:07:11,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:07:11,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 853 of 1550 [2022-11-25 18:07:11,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:07:16,076 INFO L130 PetriNetUnfolder]: 5346/18984 cut-off events. [2022-11-25 18:07:16,076 INFO L131 PetriNetUnfolder]: For 3/8 co-relation queries the response was YES. [2022-11-25 18:07:16,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28769 conditions, 18984 events. 5346/18984 cut-off events. For 3/8 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 182530 event pairs, 4216 based on Foata normal form. 0/16979 useless extension candidates. Maximal degree in co-relation 28763. Up to 9764 conditions per place. [2022-11-25 18:07:16,167 INFO L137 encePairwiseOnDemand]: 1547/1550 looper letters, 152 selfloop transitions, 4 changer transitions 0/451 dead transitions. [2022-11-25 18:07:16,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 451 transitions, 1236 flow [2022-11-25 18:07:16,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:07:16,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:07:16,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4423 transitions. [2022-11-25 18:07:16,178 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5707096774193549 [2022-11-25 18:07:16,178 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 4423 transitions. [2022-11-25 18:07:16,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 4423 transitions. [2022-11-25 18:07:16,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:07:16,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 4423 transitions. [2022-11-25 18:07:16,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 884.6) internal successors, (4423), 5 states have internal predecessors, (4423), 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) [2022-11-25 18:07:16,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1550.0) internal successors, (9300), 6 states have internal predecessors, (9300), 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) [2022-11-25 18:07:16,214 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1550.0) internal successors, (9300), 6 states have internal predecessors, (9300), 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) [2022-11-25 18:07:16,214 INFO L175 Difference]: Start difference. First operand has 436 places, 449 transitions, 916 flow. Second operand 5 states and 4423 transitions. [2022-11-25 18:07:16,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 451 transitions, 1236 flow [2022-11-25 18:07:16,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 451 transitions, 1232 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 18:07:16,226 INFO L231 Difference]: Finished difference. Result has 441 places, 451 transitions, 938 flow [2022-11-25 18:07:16,227 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1550, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=938, PETRI_PLACES=441, PETRI_TRANSITIONS=451} [2022-11-25 18:07:16,228 INFO L288 CegarLoopForPetriNet]: 437 programPoint places, 4 predicate places. [2022-11-25 18:07:16,229 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 451 transitions, 938 flow [2022-11-25 18:07:16,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 854.8333333333334) internal successors, (5129), 6 states have internal predecessors, (5129), 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) [2022-11-25 18:07:16,231 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:07:16,231 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2022-11-25 18:07:16,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 18:07:16,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b385285b-5006-4e7e-b2f5-426fcc6670e0/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:07:16,448 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-11-25 18:07:16,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:16,449 INFO L85 PathProgramCache]: Analyzing trace with hash 525069710, now seen corresponding path program 2 times [2022-11-25 18:07:16,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:16,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265903915] [2022-11-25 18:07:16,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:16,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:07:16,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:07:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:07:16,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:07:16,650 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:07:16,652 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (110 of 111 remaining) [2022-11-25 18:07:16,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (109 of 111 remaining) [2022-11-25 18:07:16,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (108 of 111 remaining) [2022-11-25 18:07:16,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (107 of 111 remaining) [2022-11-25 18:07:16,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (106 of 111 remaining) [2022-11-25 18:07:16,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (105 of 111 remaining) [2022-11-25 18:07:16,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (104 of 111 remaining) [2022-11-25 18:07:16,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (103 of 111 remaining) [2022-11-25 18:07:16,656 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (102 of 111 remaining) [2022-11-25 18:07:16,656 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (101 of 111 remaining) [2022-11-25 18:07:16,656 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (100 of 111 remaining) [2022-11-25 18:07:16,656 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (99 of 111 remaining) [2022-11-25 18:07:16,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (98 of 111 remaining) [2022-11-25 18:07:16,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (97 of 111 remaining) [2022-11-25 18:07:16,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (96 of 111 remaining) [2022-11-25 18:07:16,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (95 of 111 remaining) [2022-11-25 18:07:16,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (94 of 111 remaining) [2022-11-25 18:07:16,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (93 of 111 remaining) [2022-11-25 18:07:16,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (92 of 111 remaining) [2022-11-25 18:07:16,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (91 of 111 remaining) [2022-11-25 18:07:16,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (90 of 111 remaining) [2022-11-25 18:07:16,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (89 of 111 remaining) [2022-11-25 18:07:16,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (88 of 111 remaining) [2022-11-25 18:07:16,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (87 of 111 remaining) [2022-11-25 18:07:16,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (86 of 111 remaining) [2022-11-25 18:07:16,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (85 of 111 remaining) [2022-11-25 18:07:16,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (84 of 111 remaining) [2022-11-25 18:07:16,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (83 of 111 remaining) [2022-11-25 18:07:16,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE (82 of 111 remaining) [2022-11-25 18:07:16,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE (81 of 111 remaining) [2022-11-25 18:07:16,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE (80 of 111 remaining) [2022-11-25 18:07:16,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE (79 of 111 remaining) [2022-11-25 18:07:16,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONDATA_RACE (78 of 111 remaining) [2022-11-25 18:07:16,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONDATA_RACE (77 of 111 remaining) [2022-11-25 18:07:16,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONDATA_RACE (76 of 111 remaining) [2022-11-25 18:07:16,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONDATA_RACE (75 of 111 remaining) [2022-11-25 18:07:16,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONDATA_RACE (74 of 111 remaining) [2022-11-25 18:07:16,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONDATA_RACE (73 of 111 remaining) [2022-11-25 18:07:16,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE (72 of 111 remaining) [2022-11-25 18:07:16,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE (71 of 111 remaining) [2022-11-25 18:07:16,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONDATA_RACE (70 of 111 remaining) [2022-11-25 18:07:16,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE (69 of 111 remaining) [2022-11-25 18:07:16,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (68 of 111 remaining) [2022-11-25 18:07:16,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (67 of 111 remaining) [2022-11-25 18:07:16,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (66 of 111 remaining) [2022-11-25 18:07:16,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (65 of 111 remaining) [2022-11-25 18:07:16,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (64 of 111 remaining) [2022-11-25 18:07:16,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (63 of 111 remaining) [2022-11-25 18:07:16,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (62 of 111 remaining) [2022-11-25 18:07:16,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (61 of 111 remaining) [2022-11-25 18:07:16,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (60 of 111 remaining) [2022-11-25 18:07:16,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (59 of 111 remaining) [2022-11-25 18:07:16,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (58 of 111 remaining) [2022-11-25 18:07:16,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (57 of 111 remaining) [2022-11-25 18:07:16,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (56 of 111 remaining) [2022-11-25 18:07:16,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (55 of 111 remaining) [2022-11-25 18:07:16,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (54 of 111 remaining) [2022-11-25 18:07:16,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (53 of 111 remaining) [2022-11-25 18:07:16,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (52 of 111 remaining) [2022-11-25 18:07:16,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (51 of 111 remaining) [2022-11-25 18:07:16,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (50 of 111 remaining) [2022-11-25 18:07:16,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (49 of 111 remaining) [2022-11-25 18:07:16,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (48 of 111 remaining) [2022-11-25 18:07:16,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (47 of 111 remaining) [2022-11-25 18:07:16,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (46 of 111 remaining) [2022-11-25 18:07:16,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (45 of 111 remaining) [2022-11-25 18:07:16,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (44 of 111 remaining) [2022-11-25 18:07:16,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (43 of 111 remaining) [2022-11-25 18:07:16,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (42 of 111 remaining) [2022-11-25 18:07:16,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (41 of 111 remaining) [2022-11-25 18:07:16,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (40 of 111 remaining) [2022-11-25 18:07:16,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (39 of 111 remaining) [2022-11-25 18:07:16,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (38 of 111 remaining) [2022-11-25 18:07:16,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (37 of 111 remaining) [2022-11-25 18:07:16,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (36 of 111 remaining) [2022-11-25 18:07:16,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (35 of 111 remaining) [2022-11-25 18:07:16,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (34 of 111 remaining) [2022-11-25 18:07:16,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (33 of 111 remaining) [2022-11-25 18:07:16,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (32 of 111 remaining) [2022-11-25 18:07:16,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (31 of 111 remaining) [2022-11-25 18:07:16,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (30 of 111 remaining) [2022-11-25 18:07:16,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (29 of 111 remaining) [2022-11-25 18:07:16,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (28 of 111 remaining) [2022-11-25 18:07:16,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (27 of 111 remaining) [2022-11-25 18:07:16,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (26 of 111 remaining) [2022-11-25 18:07:16,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (25 of 111 remaining) [2022-11-25 18:07:16,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (24 of 111 remaining) [2022-11-25 18:07:16,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (23 of 111 remaining) [2022-11-25 18:07:16,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (22 of 111 remaining) [2022-11-25 18:07:16,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (21 of 111 remaining) [2022-11-25 18:07:16,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (20 of 111 remaining) [2022-11-25 18:07:16,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (19 of 111 remaining) [2022-11-25 18:07:16,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (18 of 111 remaining) [2022-11-25 18:07:16,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (17 of 111 remaining) [2022-11-25 18:07:16,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (16 of 111 remaining) [2022-11-25 18:07:16,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (15 of 111 remaining) [2022-11-25 18:07:16,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (14 of 111 remaining) [2022-11-25 18:07:16,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (13 of 111 remaining) [2022-11-25 18:07:16,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (12 of 111 remaining) [2022-11-25 18:07:16,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (11 of 111 remaining) [2022-11-25 18:07:16,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (10 of 111 remaining) [2022-11-25 18:07:16,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (9 of 111 remaining) [2022-11-25 18:07:16,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (8 of 111 remaining) [2022-11-25 18:07:16,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (7 of 111 remaining) [2022-11-25 18:07:16,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (6 of 111 remaining) [2022-11-25 18:07:16,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (5 of 111 remaining) [2022-11-25 18:07:16,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (4 of 111 remaining) [2022-11-25 18:07:16,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (3 of 111 remaining) [2022-11-25 18:07:16,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (2 of 111 remaining) [2022-11-25 18:07:16,692 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (1 of 111 remaining) [2022-11-25 18:07:16,692 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (0 of 111 remaining) [2022-11-25 18:07:16,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:07:16,693 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-11-25 18:07:16,697 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 18:07:16,697 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 18:07:16,978 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 18:07:16,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1186 places, 1270 transitions, 2558 flow [2022-11-25 18:07:18,319 INFO L130 PetriNetUnfolder]: 159/2173 cut-off events. [2022-11-25 18:07:18,319 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 18:07:18,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2187 conditions, 2173 events. 159/2173 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 10162 event pairs, 0 based on Foata normal form. 0/1823 useless extension candidates. Maximal degree in co-relation 1327. Up to 8 conditions per place. [2022-11-25 18:07:18,418 INFO L82 GeneralOperation]: Start removeDead. Operand has 1186 places, 1270 transitions, 2558 flow [2022-11-25 18:07:18,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1186 places, 1270 transitions, 2558 flow [2022-11-25 18:07:18,462 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:07:18,462 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1186 places, 1270 transitions, 2558 flow [2022-11-25 18:07:18,462 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1186 places, 1270 transitions, 2558 flow [2022-11-25 18:07:18,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1186 places, 1270 transitions, 2558 flow [2022-11-25 18:07:19,715 INFO L130 PetriNetUnfolder]: 159/2173 cut-off events. [2022-11-25 18:07:19,715 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 18:07:19,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2187 conditions, 2173 events. 159/2173 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 10162 event pairs, 0 based on Foata normal form. 0/1823 useless extension candidates. Maximal degree in co-relation 1327. Up to 8 conditions per place. [2022-11-25 18:07:20,300 INFO L119 LiptonReduction]: Number of co-enabled transitions 899360 [2022-11-25 18:08:05,079 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 113 DAG size of output: 105 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 18:08:13,093 WARN L233 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 113 DAG size of output: 105 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 18:08:30,113 WARN L233 SmtUtils]: Spent 8.03s on a formula simplification. DAG size of input: 120 DAG size of output: 118 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 18:08:41,261 WARN L233 SmtUtils]: Spent 9.13s on a formula simplification. DAG size of input: 129 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 18:09:02,231 INFO L134 LiptonReduction]: Checked pairs total: 16539229 [2022-11-25 18:09:02,231 INFO L136 LiptonReduction]: Total number of compositions: 920 [2022-11-25 18:09:02,234 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:09:02,235 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;@d9010c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:09:02,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 145 error locations. [2022-11-25 18:09:02,237 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-11-25 18:09:02,237 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:09:02,238 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:09:02,238 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 18:09:02,238 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 142 more)] === [2022-11-25 18:09:02,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:02,238 INFO L85 PathProgramCache]: Analyzing trace with hash 178463, now seen corresponding path program 1 times [2022-11-25 18:09:02,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:02,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019123475] [2022-11-25 18:09:02,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:02,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:02,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:02,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:02,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019123475] [2022-11-25 18:09:02,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019123475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:02,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:02,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:09:02,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838552472] [2022-11-25 18:09:02,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:02,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:09:02,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:02,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:09:02,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:09:02,279 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1205 out of 2190 [2022-11-25 18:09:02,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 644 places, 699 transitions, 1416 flow. Second operand has 2 states, 2 states have (on average 1206.0) internal successors, (2412), 2 states have internal predecessors, (2412), 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) [2022-11-25 18:09:02,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:09:02,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1205 of 2190 [2022-11-25 18:09:02,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand