Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided in four parts:
  1. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provide some useful information on the computer.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
  3. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to 1200 seconds. After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  4. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.

General information on the benchmark

Namenormalized-opb/web/uclid_pb_benchmarks/normalized-dlx1c.ucl.opb
MD5SUMcefdf27fc4e2dfb80df6acbe16ce71e4
Bench Categoryno optimization function (SAT)
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 33
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 126
Number of bits of the biggest sum of numbers7
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.62775
Number of variables6392
Total number of constraints18058
Number of constraints which are clauses17278
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints780
Minimum length of a constraint1
Maximum length of a constraint11

Trace number 24589

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-11 06:24:13 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2604 boxname=wulflinc31 idbench=290 idsolver=3 numberseed=0
MD5SUM SOLVER: 03a6a792daea978e4202f78851741568  /oldhome/oroussel/solvers/bsolo_mis
MD5SUM BENCH:  cefdf27fc4e2dfb80df6acbe16ce71e4  /oldhome/oroussel/tmp/wulflinc31/normalized-dlx1c.ucl.opb
REAL COMMAND:  bsolo_mis /oldhome/oroussel/tmp/wulflinc31/normalized-dlx1c.ucl.opb
IDLAUNCH: 2604
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        909708 kB
Buffers:         23228 kB
Cached:          79712 kB
SwapCached:        692 kB
Active:          65012 kB
Inactive:        39676 kB
HighTotal:      131008 kB
HighFree:        49840 kB
LowTotal:       903652 kB
LowFree:        859868 kB
SwapTotal:     2097892 kB
SwapFree:      2095980 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4704 kB
Slab:            14500 kB
Committed_AS:    63652 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-11 06:30:13 (client local time) WITH STATUS 20 IN 359.843 SECONDS
stats: 2604 7 359.843 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: No cost function. Find solution and finish.
c Initial problem consists of 6392 variables and 18058 constraints.
c After prepocess the problem consists of 4268 variables and 13030 constraints.
c preprocess terminated 334.632 s
c Not use computed LB before first solution.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 359.752 s
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.93 0.98 0.92 2/54 24277
Raw data (stat): 24277 (runsolver) R 24276 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 715701388 1056768 100 4294967295 134512640 135381576 3221221696 3221216916 135158418 0 2147483391 1 90112 0 0 0 17 1 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10.0001 s]
Raw data (loadavg): 0.94 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 898 97 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220432 134606485 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+20.001 s]
Raw data (loadavg): 0.95 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 1898 98 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220520 134543552 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+30.0009 s]
Raw data (loadavg): 0.95 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 2898 98 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220544 134630775 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+40.0009 s]
Raw data (loadavg): 0.96 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 3897 99 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220124 134535900 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+50.0018 s]
Raw data (loadavg): 0.97 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 4897 99 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220432 134606485 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+60.0017 s]
Raw data (loadavg): 0.97 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 5897 100 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220592 134617242 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+70.0027 s]
Raw data (loadavg): 0.97 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 6897 100 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220272 134539374 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+80.0026 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 7896 100 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220272 134524067 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+90.0027 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 8896 101 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220204 134543616 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+100.003 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 9896 101 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220432 134606494 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+110.002 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 10896 102 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220304 134543686 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+120.003 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 11895 102 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220272 134539382 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+130.003 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 12895 103 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220520 134672906 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+140.003 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 13895 103 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220432 134606498 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+150.004 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 14895 103 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220408 134536879 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+160.004 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 15894 104 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220320 134542848 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+170.004 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 16894 104 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220432 134606494 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+180.004 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 17894 104 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220544 134630792 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+190.004 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 18893 105 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220260 134536649 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+200.004 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 19893 105 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220368 134535840 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+210.004 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 20893 106 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220544 134630798 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+220.005 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 21893 106 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220176 134542350 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+230.005 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 22893 106 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220432 134606474 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+240.005 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 23893 107 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220272 134536630 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+250.005 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 24893 107 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220156 134539243 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+260.006 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 25893 107 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220320 134528680 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+270.007 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 26893 107 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220344 1077378310 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+280.006 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 27893 107 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220368 134535826 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+290.007 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 28893 107 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220272 134536630 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+300.007 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 29893 107 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220272 134539429 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+310.007 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 30894 107 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220544 134630792 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+320.008 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 31894 107 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220432 134606456 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+330.008 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40388 0 0 0 32894 107 0 0 25 0 1 0 715701388 169250816 40363 4294967295 134512640 134714540 3221221792 3221220252 134543664 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 41321 40363 1111 63 0 41258 0
vsize: 165284
[startup+340.008 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40505 0 0 0 33893 108 0 0 25 0 1 0 715701388 169652224 40480 4294967295 134512640 134714540 3221221792 3221220424 134543090 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 41419 40480 1111 63 0 41356 0
vsize: 165676
[startup+350.008 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40505 0 0 0 34892 108 0 0 25 0 1 0 715701388 169652224 40480 4294967295 134512640 134714540 3221221792 3221220528 134529421 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 41419 40480 1111 63 0 41356 0
vsize: 165676
[startup+359.839 s]
Raw data (loadavg): 0.99 0.98 0.92 1/53 24277
Raw data (stat): 24277 (bsolo_mis) R 24276 7876 7672 0 -1 0 40505 0 0 0 34892 108 0 0 25 0 1 0 715701388 169652224 40480 4294967295 134512640 134714540 3221221792 3221220528 134529421 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 41419 40480 1111 63 0 41356 0
vsize: 0

Child status: 20
Real time (s): 359.838
CPU time (s): 359.843
CPU user time (s): 358.679
CPU system time (s): 1.16382
CPU usage (%): 100.001
Max. virtual memory (Kb): 165676
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####