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-v2-20-10/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-sp98ar.opb
MD5SUM9565d6b3010c78b37c39352cc9731cb7
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 15085
Biggest coefficient in the objective function 504328818
Number of bits for the biggest coefficient in the objective function 29
Sum of the numbers in the objective function 2067304124713
Number of bits of the sum of numbers in the objective function 41
Biggest number in a constraint 504328818
Number of bits of the biggest number in a constraint 29
Biggest sum of numbers in a constraint 2067304124713
Number of bits of the biggest sum of numbers41
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark13.9929
Number of variables15085
Total number of constraints16520
Number of constraints which are clauses181
Number of constraints which are cardinality constraints (but not clauses)15927
Number of constraints which are nor clauses,nor cardinality constraints412
Minimum length of a constraint1
Maximum length of a constraint4222

Trace number 42657 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 13:28:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25874 boxname=wulflinc6 idbench=1174 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9565d6b3010c78b37c39352cc9731cb7  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-sp98ar.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-sp98ar.opb
IDLAUNCH: 25874
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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	: 2
cpu MHz		: 451.042
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:        680400 kB
Buffers:         26172 kB
Cached:         304804 kB
SwapCached:       1000 kB
Active:          33404 kB
Inactive:       299732 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        680148 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            15396 kB
Committed_AS:    63848 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 13:31:07 (client local time) WITH STATUS 1 IN 152.699 SECONDS
stats: 25874 7 152.699 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 40382066383
c big objective detected
c trying from 0 to 511

	Unexpected exception :
	St9bad_alloc
#### 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): 0.93 0.95 0.91 2/54 20511
Raw data (stat): 20511 (runsolver) R 20510 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971124526 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0002 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 10035 0 0 0 977 22 0 0 25 0 1 0 971124526 30683136 6078 4294967295 134512640 135730672 3221224576 3221221616 134523744 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 7491 6078 301 301 0 7190 0
vsize: 29964
[startup+20.0003 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 36062 0 0 0 1918 81 0 0 25 0 1 0 971124526 110231552 20402 4294967295 134512640 135730672 3221224576 3221221760 134578489 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 26912 20402 301 301 0 26611 0
vsize: 107648
[startup+29.9995 s]
Raw data (loadavg): 1.03 0.97 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 53922 0 0 0 2878 122 0 0 25 0 1 0 971124526 158773248 31920 4294967295 134512640 135730672 3221224576 3221220880 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 38763 31920 301 301 0 38462 0
vsize: 155052
[startup+39.9996 s]
Raw data (loadavg): 1.02 0.97 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 88395 0 0 0 3804 196 0 0 25 0 1 0 971124526 266653696 44739 4294967295 134512640 135730672 3221224576 3219920440 135284467 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65101 44740 301 301 0 64800 0
vsize: 260404
[startup+49.9998 s]
Raw data (loadavg): 1.02 0.97 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 97597 0 0 0 4782 219 0 0 25 0 1 0 971124526 300208128 53760 4294967295 134512640 135730672 3221224576 3221129296 135109367 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73293 53762 301 301 0 72992 0
vsize: 293172
[startup+59.9989 s]
Raw data (loadavg): 1.02 0.97 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 107725 0 0 0 5755 245 0 0 25 0 1 0 971124526 308318208 63725 4294967295 134512640 135730672 3221224576 3221221520 135282770 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 75273 63725 301 301 0 74972 0
vsize: 301092
[startup+69.9981 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 141790 0 0 0 6691 310 0 0 25 0 1 0 971124526 426389504 79272 4294967295 134512640 135730672 3221224576 3219947648 134770715 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 104099 79273 301 301 0 103798 0
vsize: 416396
[startup+79.9982 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 174607 0 0 0 7618 383 0 0 25 0 1 0 971124526 527052800 87349 4294967295 134512640 135730672 3221224576 3221221888 134570511 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 128675 87349 301 301 0 128374 0
vsize: 514700
[startup+89.9974 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 179412 0 0 0 8606 395 0 0 25 0 1 0 971124526 531533824 89684 4294967295 134512640 135730672 3221224576 3221223072 134747516 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 129769 89684 301 301 0 129468 0
vsize: 519076
[startup+99.9965 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 179412 0 0 0 9606 395 0 0 25 0 1 0 971124526 531533824 89684 4294967295 134512640 135730672 3221224576 3221223072 134747568 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 129769 89684 301 301 0 129468 0
vsize: 519076
[startup+109.997 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 179413 0 0 0 10606 396 0 0 25 0 1 0 971124526 531533824 89685 4294967295 134512640 135730672 3221224576 3221223072 134747543 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 129769 89685 301 301 0 129468 0
vsize: 519076
[startup+119.997 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 191922 0 0 0 11577 425 0 0 25 0 1 0 971124526 551772160 102028 4294967295 134512640 135730672 3221224576 3219520412 134607952 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 134710 102029 301 301 0 134409 0
vsize: 538840
[startup+129.996 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 209846 0 0 0 12535 467 0 0 25 0 1 0 971124526 614793216 119720 4294967295 134512640 135730672 3221224576 3221083008 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 150096 119721 301 301 0 149795 0
vsize: 600384
[startup+139.995 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 230002 0 0 0 13491 512 0 0 25 0 1 0 971124526 647774208 139611 4294967295 134512640 135730672 3221224576 3218284896 135282758 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158148 139611 301 301 0 157847 0
vsize: 632592
[startup+149.995 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 242564 0 0 0 14462 541 0 0 25 0 1 0 971124526 668831744 151950 4294967295 134512640 135730672 3221224576 3221222828 135281190 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163289 151950 301 301 0 162988 0
vsize: 653156
[startup+152.657 s]
Raw data (loadavg): 1.00 0.97 0.91 1/53 20511
Raw data (stat): 20511 (pb2sat-v2) R 20510 25568 25567 0 -1 0 242564 0 0 0 14462 541 0 0 25 0 1 0 971124526 668831744 151950 4294967295 134512640 135730672 3221224576 3221222828 135281190 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163289 151950 301 301 0 162988 0
vsize: 0

Child status: 1
Real time (s): 152.656
CPU time (s): 152.699
CPU user time (s): 146.978
CPU system time (s): 5.72113
CPU usage (%): 100.028
Max. virtual memory (Kb): 653156
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####