./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/barrier_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/barrier_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc --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 f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 --- 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-5e519f3 [2022-11-02 20:16:59,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:17:00,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:17:00,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:17:00,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:17:00,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:17:00,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:17:00,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:17:00,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:17:00,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:17:00,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:17:00,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:17:00,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:17:00,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:17:00,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:17:00,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:17:00,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:17:00,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:17:00,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:17:00,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:17:00,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:17:00,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:17:00,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:17:00,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:17:00,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:17:00,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:17:00,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:17:00,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:17:00,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:17:00,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:17:00,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:17:00,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:17:00,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:17:00,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:17:00,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:17:00,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:17:00,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:17:00,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:17:00,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:17:00,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:17:00,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:17:00,120 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:17:00,158 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:17:00,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:17:00,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:17:00,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:17:00,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:17:00,160 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:17:00,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:17:00,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:17:00,162 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:17:00,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:17:00,163 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:17:00,163 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:17:00,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:17:00,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:17:00,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:17:00,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:17:00,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:17:00,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:17:00,165 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:17:00,165 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:17:00,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:17:00,165 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:17:00,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:17:00,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:17:00,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:17:00,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:17:00,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:17:00,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:17:00,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:17:00,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:17:00,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:17:00,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:17:00,170 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:17:00,170 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:17:00,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:17:00,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 [2022-11-02 20:17:00,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:17:00,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:17:00,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:17:00,473 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:17:00,474 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:17:00,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-divine/barrier_2t.i [2022-11-02 20:17:00,569 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/data/c555f195e/3345e46664d44bfabae8ffb53dcee7d4/FLAG6450fef39 [2022-11-02 20:17:01,225 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:17:01,226 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i [2022-11-02 20:17:01,242 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/data/c555f195e/3345e46664d44bfabae8ffb53dcee7d4/FLAG6450fef39 [2022-11-02 20:17:01,477 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/data/c555f195e/3345e46664d44bfabae8ffb53dcee7d4 [2022-11-02 20:17:01,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:17:01,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:17:01,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:01,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:17:01,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:17:01,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:01" (1/1) ... [2022-11-02 20:17:01,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478622ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:01, skipping insertion in model container [2022-11-02 20:17:01,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:01" (1/1) ... [2022-11-02 20:17:01,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:17:01,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:17:01,719 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:17:01,989 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[30484,30497] [2022-11-02 20:17:02,048 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[31858,31871] [2022-11-02 20:17:02,052 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[31909,31922] [2022-11-02 20:17:02,060 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32058,32071] [2022-11-02 20:17:02,063 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32135,32148] [2022-11-02 20:17:02,065 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32182,32195] [2022-11-02 20:17:02,070 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32291,32304] [2022-11-02 20:17:02,074 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32410,32423] [2022-11-02 20:17:02,077 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32458,32471] [2022-11-02 20:17:02,080 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32535,32548] [2022-11-02 20:17:02,081 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32661,32674] [2022-11-02 20:17:02,093 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[33244,33257] [2022-11-02 20:17:02,099 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[33321,33334] [2022-11-02 20:17:02,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:02,111 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:17:02,134 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:17:02,169 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[30484,30497] [2022-11-02 20:17:02,186 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[31858,31871] [2022-11-02 20:17:02,187 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[31909,31922] [2022-11-02 20:17:02,189 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32058,32071] [2022-11-02 20:17:02,190 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32135,32148] [2022-11-02 20:17:02,190 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32182,32195] [2022-11-02 20:17:02,192 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32291,32304] [2022-11-02 20:17:02,193 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32410,32423] [2022-11-02 20:17:02,194 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32458,32471] [2022-11-02 20:17:02,203 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32535,32548] [2022-11-02 20:17:02,206 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[32661,32674] [2022-11-02 20:17:02,224 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[33244,33257] [2022-11-02 20:17:02,228 WARN L230 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_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/sv-benchmarks/c/pthread-divine/barrier_2t.i[33321,33334] [2022-11-02 20:17:02,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:17:02,272 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:17:02,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02 WrapperNode [2022-11-02 20:17:02,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:17:02,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:02,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:17:02,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:17:02,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,384 INFO L138 Inliner]: procedures = 174, calls = 78, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 950 [2022-11-02 20:17:02,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:17:02,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:17:02,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:17:02,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:17:02,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,489 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:17:02,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:17:02,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:17:02,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:17:02,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (1/1) ... [2022-11-02 20:17:02,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:17:02,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:17:02,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:17:02,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2d2a87-0714-48fb-8a5e-4212b0ce372e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:17:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:17:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:17:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:17:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-11-02 20:17:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-11-02 20:17:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:17:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:17:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:17:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:17:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:17:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:17:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:17:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:17:02,587 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:17:02,858 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:17:02,860 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:17:04,467 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:17:04,486 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:17:04,487 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-11-02 20:17:04,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:04 BoogieIcfgContainer [2022-11-02 20:17:04,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:17:04,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:17:04,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:17:04,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:17:04,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:17:01" (1/3) ... [2022-11-02 20:17:04,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e3d014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:17:04, skipping insertion in model container [2022-11-02 20:17:04,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:02" (2/3) ... [2022-11-02 20:17:04,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e3d014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:17:04, skipping insertion in model container [2022-11-02 20:17:04,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:04" (3/3) ... [2022-11-02 20:17:04,503 INFO L112 eAbstractionObserver]: Analyzing ICFG barrier_2t.i [2022-11-02 20:17:04,514 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:17:04,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:17:04,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2022-11-02 20:17:04,528 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:17:04,819 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-02 20:17:04,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1018 places, 1085 transitions, 2178 flow [2022-11-02 20:17:05,927 INFO L130 PetriNetUnfolder]: 106/1593 cut-off events. [2022-11-02 20:17:05,927 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:17:05,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1599 conditions, 1593 events. 106/1593 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 6054 event pairs, 0 based on Foata normal form. 0/1339 useless extension candidates. Maximal degree in co-relation 964. Up to 4 conditions per place. [2022-11-02 20:17:05,983 INFO L82 GeneralOperation]: Start removeDead. Operand has 1018 places, 1085 transitions, 2178 flow [2022-11-02 20:17:06,017 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1018 places, 1085 transitions, 2178 flow [2022-11-02 20:17:06,027 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:17:06,033 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;@7fef6a3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:17:06,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 143 error locations. [2022-11-02 20:17:06,040 INFO L130 PetriNetUnfolder]: 2/54 cut-off events. [2022-11-02 20:17:06,040 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:17:06,041 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:06,041 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:06,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-02 20:17:06,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:06,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1378405910, now seen corresponding path program 1 times [2022-11-02 20:17:06,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:06,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909806930] [2022-11-02 20:17:06,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:06,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:07,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:07,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:07,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909806930] [2022-11-02 20:17:07,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909806930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:07,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:07,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:17:07,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574733866] [2022-11-02 20:17:07,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:07,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:17:07,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:07,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:17:07,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:17:07,224 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 1085 [2022-11-02 20:17:07,236 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1018 places, 1085 transitions, 2178 flow. Second operand has 6 states, 6 states have (on average 585.8333333333334) internal successors, (3515), 6 states have internal predecessors, (3515), 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) [2022-11-02 20:17:07,236 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:07,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 1085 [2022-11-02 20:17:07,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:48,756 INFO L130 PetriNetUnfolder]: 46273/142353 cut-off events. [2022-11-02 20:17:48,756 INFO L131 PetriNetUnfolder]: For 9/14 co-relation queries the response was YES. [2022-11-02 20:17:48,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227437 conditions, 142353 events. 46273/142353 cut-off events. For 9/14 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 1601630 event pairs, 40950 based on Foata normal form. 10045/127324 useless extension candidates. Maximal degree in co-relation 226565. Up to 85073 conditions per place. [2022-11-02 20:17:49,527 INFO L137 encePairwiseOnDemand]: 1036/1085 looper letters, 452 selfloop transitions, 5 changer transitions 1/1041 dead transitions. [2022-11-02 20:17:49,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1022 places, 1041 transitions, 3004 flow [2022-11-02 20:17:49,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:17:49,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:17:49,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4005 transitions. [2022-11-02 20:17:49,571 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6152073732718893 [2022-11-02 20:17:49,572 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4005 transitions. [2022-11-02 20:17:49,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4005 transitions. [2022-11-02 20:17:49,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:49,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4005 transitions. [2022-11-02 20:17:49,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 667.5) internal successors, (4005), 6 states have internal predecessors, (4005), 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) [2022-11-02 20:17:49,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1085.0) internal successors, (7595), 7 states have internal predecessors, (7595), 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) [2022-11-02 20:17:49,635 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1085.0) internal successors, (7595), 7 states have internal predecessors, (7595), 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) [2022-11-02 20:17:49,638 INFO L175 Difference]: Start difference. First operand has 1018 places, 1085 transitions, 2178 flow. Second operand 6 states and 4005 transitions. [2022-11-02 20:17:49,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1022 places, 1041 transitions, 3004 flow [2022-11-02 20:17:49,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1022 places, 1041 transitions, 3004 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:17:49,697 INFO L231 Difference]: Finished difference. Result has 1022 places, 1040 transitions, 2098 flow [2022-11-02 20:17:49,702 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1085, PETRI_DIFFERENCE_MINUEND_FLOW=2090, PETRI_DIFFERENCE_MINUEND_PLACES=1017, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1041, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1036, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2098, PETRI_PLACES=1022, PETRI_TRANSITIONS=1040} [2022-11-02 20:17:49,709 INFO L287 CegarLoopForPetriNet]: 1018 programPoint places, 4 predicate places. [2022-11-02 20:17:49,709 INFO L495 AbstractCegarLoop]: Abstraction has has 1022 places, 1040 transitions, 2098 flow [2022-11-02 20:17:49,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 585.8333333333334) internal successors, (3515), 6 states have internal predecessors, (3515), 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) [2022-11-02 20:17:49,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:49,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:49,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:17:49,722 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-02 20:17:49,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:49,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1789326229, now seen corresponding path program 1 times [2022-11-02 20:17:49,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:49,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527271629] [2022-11-02 20:17:49,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:49,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:49,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:49,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:49,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527271629] [2022-11-02 20:17:49,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527271629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:49,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:49,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:17:49,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399917674] [2022-11-02 20:17:49,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:49,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:17:49,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:49,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:17:49,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:17:49,838 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 1013 out of 1085 [2022-11-02 20:17:49,843 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1022 places, 1040 transitions, 2098 flow. Second operand has 3 states, 3 states have (on average 1014.0) internal successors, (3042), 3 states have internal predecessors, (3042), 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) [2022-11-02 20:17:49,843 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:49,844 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1013 of 1085 [2022-11-02 20:17:49,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:17:50,822 INFO L130 PetriNetUnfolder]: 40/1554 cut-off events. [2022-11-02 20:17:50,822 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 20:17:50,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1623 conditions, 1554 events. 40/1554 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5747 event pairs, 0 based on Foata normal form. 0/1331 useless extension candidates. Maximal degree in co-relation 1508. Up to 29 conditions per place. [2022-11-02 20:17:50,876 INFO L137 encePairwiseOnDemand]: 1082/1085 looper letters, 49 selfloop transitions, 2 changer transitions 0/1063 dead transitions. [2022-11-02 20:17:50,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1023 places, 1063 transitions, 2254 flow [2022-11-02 20:17:50,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:17:50,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:17:50,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3091 transitions. [2022-11-02 20:17:50,888 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.949615975422427 [2022-11-02 20:17:50,888 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3091 transitions. [2022-11-02 20:17:50,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3091 transitions. [2022-11-02 20:17:50,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:17:50,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3091 transitions. [2022-11-02 20:17:50,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 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) [2022-11-02 20:17:50,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1085.0) internal successors, (4340), 4 states have internal predecessors, (4340), 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) [2022-11-02 20:17:50,918 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1085.0) internal successors, (4340), 4 states have internal predecessors, (4340), 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) [2022-11-02 20:17:50,919 INFO L175 Difference]: Start difference. First operand has 1022 places, 1040 transitions, 2098 flow. Second operand 3 states and 3091 transitions. [2022-11-02 20:17:50,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1023 places, 1063 transitions, 2254 flow [2022-11-02 20:17:50,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1018 places, 1063 transitions, 2236 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:17:50,951 INFO L231 Difference]: Finished difference. Result has 1019 places, 1041 transitions, 2100 flow [2022-11-02 20:17:50,953 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=1085, PETRI_DIFFERENCE_MINUEND_FLOW=2088, PETRI_DIFFERENCE_MINUEND_PLACES=1016, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1040, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1038, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2100, PETRI_PLACES=1019, PETRI_TRANSITIONS=1041} [2022-11-02 20:17:50,954 INFO L287 CegarLoopForPetriNet]: 1018 programPoint places, 1 predicate places. [2022-11-02 20:17:50,955 INFO L495 AbstractCegarLoop]: Abstraction has has 1019 places, 1041 transitions, 2100 flow [2022-11-02 20:17:50,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1014.0) internal successors, (3042), 3 states have internal predecessors, (3042), 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) [2022-11-02 20:17:50,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:17:50,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:17:50,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:17:50,959 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-02 20:17:50,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:17:50,960 INFO L85 PathProgramCache]: Analyzing trace with hash -452342041, now seen corresponding path program 1 times [2022-11-02 20:17:50,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:17:50,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352577803] [2022-11-02 20:17:50,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:17:50,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:17:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:17:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:17:51,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:17:51,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352577803] [2022-11-02 20:17:51,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352577803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:17:51,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:17:51,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:17:51,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430843511] [2022-11-02 20:17:51,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:17:51,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:17:51,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:17:51,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:17:51,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:17:51,577 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 1085 [2022-11-02 20:17:51,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1019 places, 1041 transitions, 2100 flow. Second operand has 6 states, 6 states have (on average 586.8333333333334) internal successors, (3521), 6 states have internal predecessors, (3521), 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) [2022-11-02 20:17:51,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:17:51,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 1085 [2022-11-02 20:17:51,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand