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/mps-v2-13-7/MIPLIB/miplib3/normalized-mps-v2-13-7-qnet1_o.opb
MD5SUM1663d824f64922ec9a31929abe96b909
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
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 2480
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 130023300
Number of bits of the sum of numbers in the objective function 27
Biggest number in a constraint 20945120000
Number of bits of the biggest number in a constraint 35
Biggest sum of numbers in a constraint 59755435295
Number of bits of the biggest sum of numbers36
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.047992
Number of variables4140
Total number of constraints585
Number of constraints which are clauses32
Number of constraints which are cardinality constraints (but not clauses)48
Number of constraints which are nor clauses,nor cardinality constraints505
Minimum length of a constraint2
Maximum length of a constraint54

Trace number 35669 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc10 THE 2005-05-28 13:44:23 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24976 boxname=wulflinc10 idbench=1448 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1663d824f64922ec9a31929abe96b909  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-qnet1_o.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-qnet1_o.opb
IDLAUNCH: 24976
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        739404 kB
Buffers:          6236 kB
Cached:         269080 kB
SwapCached:         84 kB
Active:          20052 kB
Inactive:       257888 kB
HighTotal:      131008 kB
HighFree:        23744 kB
LowTotal:       903652 kB
LowFree:        715660 kB
SwapTotal:     2097136 kB
SwapFree:      2096728 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5880 kB
Slab:            11796 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:46:18 (client local time) WITH STATUS 20 IN 114.171 SECONDS
stats: 24976 7 114.171 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c [startup+53.7054 s]  setting bit 26 to 0
c CONFLICT during preprocess 
c [startup+55.9902 s]  setting bit 25 to 0
c CONFLICT during preprocess 
c [startup+58.2705 s]  setting bit 24 to 0
c CONFLICT during preprocess 
c [startup+60.5528 s]  setting bit 23 to 0
c CONFLICT during preprocess 
c [startup+62.8328 s]  setting bit 22 to 0
c CONFLICT during preprocess 
c [startup+65.1128 s]  setting bit 21 to 0
c CONFLICT during preprocess 
c [startup+67.395 s]  setting bit 20 to 0
c CONFLICT during preprocess 
c [startup+69.6747 s]  setting bit 19 to 0
c CONFLICT during preprocess 
c [startup+71.9564 s]  setting bit 18 to 0
c CONFLICT during preprocess 
c [startup+74.2369 s]  setting bit 17 to 0
c CONFLICT during preprocess 
c [startup+76.517 s]  setting bit 16 to 0
c CONFLICT during preprocess 
c [startup+78.7977 s]  setting bit 15 to 0
c CONFLICT during preprocess 
c [startup+81.0778 s]  setting bit 14 to 0
c CONFLICT during preprocess 
c [startup+83.3598 s]  setting bit 13 to 0
c CONFLICT during preprocess 
c [startup+85.639 s]  setting bit 12 to 0
c CONFLICT during preprocess 
c [startup+87.9193 s]  setting bit 11 to 0
c CONFLICT during preprocess 
c [startup+90.2006 s]  setting bit 10 to 0
c CONFLICT during preprocess 
c [startup+92.4806 s]  setting bit 9 to 0
c CONFLICT during preprocess 
c [startup+94.7596 s]  setting bit 8 to 0
c CONFLICT during preprocess 
c [startup+97.0408 s]  setting bit 7 to 0
c CONFLICT during preprocess 
c [startup+99.3205 s]  setting bit 6 to 0
c CONFLICT during preprocess 
c [startup+101.603 s]  setting bit 5 to 0
c CONFLICT during preprocess 
c [startup+103.884 s]  setting bit 4 to 0
c CONFLICT during preprocess 
c [startup+106.164 s]  setting bit 3 to 0
c CONFLICT during preprocess 
c [startup+108.447 s]  setting bit 2 to 0
c CONFLICT during preprocess 
c [startup+110.728 s]  setting bit 1 to 0
c CONFLICT during preprocess 
c [startup+113.009 s]  setting bit 0 to 0
s UNSATISFIABLE
#### 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.91 0.95 0.90 2/54 24138
Raw data (stat): 24138 (runsolver) R 24137 15547 15546 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 807052125 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0005 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 24138
Raw data (stat): 24138 (pb2sat) R 24137 15547 15546 0 -1 0 30083 0 0 0 935 64 0 0 25 0 1 0 807052125 90472448 19171 4294967295 134512640 135726644 3221224576 3220750952 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22088 19171 300 300 0 21788 0
vsize: 88352
[startup+20.0016 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 24138
Raw data (stat): 24138 (pb2sat) R 24137 15547 15546 0 -1 0 59102 0 0 0 1871 128 0 0 25 0 1 0 807052125 176869376 37226 4294967295 134512640 135726644 3221224576 3221220308 135277480 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43181 37226 300 300 0 42881 0
vsize: 172724
[startup+30.002 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 24138
Raw data (stat): 24138 (pb2sat) R 24137 15547 15546 0 -1 0 89054 0 0 0 2806 193 0 0 25 0 1 0 807052125 269070336 44457 4294967295 134512640 135726644 3221224576 3221223072 134744372 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65691 44457 300 300 0 65391 0
vsize: 262764
[startup+40.002 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 24138
Raw data (stat): 24138 (pb2sat) R 24137 15547 15546 0 -1 0 89055 0 0 0 3803 196 0 0 25 0 1 0 807052125 269070336 44458 4294967295 134512640 135726644 3221224576 3221223072 134743953 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65691 44458 300 300 0 65391 0
vsize: 262764
[startup+50.0026 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 24138
Raw data (stat): 24138 (pb2sat) R 24137 15547 15546 0 -1 0 89055 0 0 0 4801 198 0 0 25 0 1 0 807052125 269070336 44458 4294967295 134512640 135726644 3221224576 3221223072 134743901 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65691 44458 300 300 0 65391 0
vsize: 262764
[startup+60.0017 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 24138
Raw data (stat): 24138 (pb2sat) R 24137 15547 15546 0 -1 0 92358 0 0 0 5792 207 0 0 25 0 1 0 807052125 269070336 44473 4294967295 134512640 135726644 3221224576 3221222880 134743907 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65691 44473 300 300 0 65391 0
vsize: 262764
[startup+70.0028 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 24138
Raw data (stat): 24138 (pb2sat) R 24137 15547 15546 0 -1 0 97840 0 0 0 6778 221 0 0 25 0 1 0 807052125 273559552 45571 4294967295 134512640 135726644 3221224576 3221222888 134761847 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 66787 45571 300 300 0 66487 0
vsize: 267148
[startup+80.0034 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 24138
Raw data (stat): 24138 (pb2sat) R 24137 15547 15546 0 -1 0 102224 0 0 0 7767 232 0 0 25 0 1 0 807052125 273559552 45571 4294967295 134512640 135726644 3221224576 3221222896 134765536 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 66787 45571 300 300 0 66487 0
vsize: 267148
[startup+90.0028 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 24138
Raw data (stat): 24138 (pb2sat) R 24137 15547 15546 0 -1 0 106609 0 0 0 8756 243 0 0 25 0 1 0 807052125 269070336 44476 4294967295 134512640 135726644 3221224576 3221223296 134736256 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65691 44476 300 300 0 65391 0
vsize: 262764
[startup+100.003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 24138
Raw data (stat): 24138 (pb2sat) R 24137 15547 15546 0 -1 0 112089 0 0 0 9743 256 0 0 25 0 1 0 807052125 273559552 45572 4294967295 134512640 135726644 3221224576 3221222896 134765182 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 66787 45572 300 300 0 66487 0
vsize: 267148
[startup+110.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 24138
Raw data (stat): 24138 (pb2sat) R 24137 15547 15546 0 -1 0 116473 0 0 0 10732 267 0 0 25 0 1 0 807052125 269070336 44476 4294967295 134512640 135726644 3221224576 3221223120 134745790 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65691 44476 300 300 0 65391 0
vsize: 262764
[startup+114.175 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 24138
Raw data (stat): 24138 (pb2sat) R 24137 15547 15546 0 -1 0 116473 0 0 0 10732 267 0 0 25 0 1 0 807052125 269070336 44476 4294967295 134512640 135726644 3221224576 3221223120 134745790 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65691 44476 300 300 0 65391 0
vsize: 0

Child status: 20
Real time (s): 114.174
CPU time (s): 114.171
CPU user time (s): 111.371
CPU system time (s): 2.79957
CPU usage (%): 99.9967
Max. virtual memory (Kb): 267148
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####