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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-scfxm3.opb
MD5SUM4386d3a42d53adecf557a6eee4db5bf4
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 2070
Biggest coefficient in the objective function 5368709120
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 421980536439
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 53687091200000
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 326830904793855
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.39679
Number of variables41130
Total number of constraints990
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints990
Minimum length of a constraint30
Maximum length of a constraint1710

Trace number 35086 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc21 THE 2005-05-28 12:12:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24393 boxname=wulflinc21 idbench=865 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4386d3a42d53adecf557a6eee4db5bf4  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-scfxm3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-scfxm3.opb
IDLAUNCH: 24393
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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	: 3
cpu MHz		: 451.161
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:        853884 kB
Buffers:         33904 kB
Cached:         123036 kB
SwapCached:        956 kB
Active:          56196 kB
Inactive:       102928 kB
HighTotal:      131008 kB
HighFree:         5208 kB
LowTotal:       903652 kB
LowFree:        848676 kB
SwapTotal:     2097892 kB
SwapFree:      2096012 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5136 kB
Slab:            15848 kB
Committed_AS:    63916 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:13:45 (client local time) WITH STATUS 1 IN 104.819 SECONDS
stats: 24393 7 104.819 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	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): 0.86 0.95 0.90 2/55 13290
Raw data (stat): 13290 (runsolver) R 13289 32363 32362 0 -1 64 8 0 0 0 0 0 0 0 20 0 1 0 741970784 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+10.0013 s]
Raw data (loadavg): 0.88 0.96 0.91 2/55 13290
Raw data (stat): 13290 (pb2sat) R 13289 32363 32362 0 -1 0 31622 0 0 0 927 71 0 0 25 0 1 0 741970784 92196864 20467 4294967295 134512640 135726644 3221224576 3220668080 134782746 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22509 20467 300 300 0 22209 0
vsize: 90036
[startup+20.0014 s]
Raw data (loadavg): 0.90 0.96 0.91 2/55 13290
Raw data (stat): 13290 (pb2sat) R 13289 32363 32362 0 -1 0 63216 0 0 0 1859 139 0 0 25 0 1 0 741970784 182210560 40813 4294967295 134512640 135726644 3221224576 3220871280 134782666 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 44485 40813 300 300 0 44185 0
vsize: 177940
[startup+30.0022 s]
Raw data (loadavg): 0.91 0.96 0.91 2/55 13290
Raw data (stat): 13290 (pb2sat) R 13289 32363 32362 0 -1 0 102533 0 0 0 2776 222 0 0 25 0 1 0 741970784 329383936 57923 4294967295 134512640 135726644 3221224576 3221096080 134782999 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 80416 57923 300 300 0 80116 0
vsize: 321664
[startup+40.0029 s]
Raw data (loadavg): 0.93 0.96 0.91 2/55 13290
Raw data (stat): 13290 (pb2sat) R 13289 32363 32362 0 -1 0 120689 0 0 0 3733 265 0 0 25 0 1 0 741970784 352497664 75854 4294967295 134512640 135726644 3221224576 3221206736 134784502 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86059 75854 300 300 0 85759 0
vsize: 344236
[startup+50.0025 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 13290
Raw data (stat): 13290 (pb2sat) R 13289 32363 32362 0 -1 0 151199 0 0 0 4673 325 0 0 25 0 1 0 741970784 442183680 87786 4294967295 134512640 135726644 3221224576 3221049496 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 107955 87786 300 300 0 107655 0
vsize: 431820
[startup+60.0021 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 13290
Raw data (stat): 13290 (pb2sat) R 13289 32363 32362 0 -1 0 185223 0 0 0 5605 394 0 0 25 0 1 0 741970784 576401408 97058 4294967295 134512640 135726644 3221224576 3221055472 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 140723 97059 300 300 0 140423 0
vsize: 562892
[startup+70.0021 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 13290
Raw data (stat): 13290 (pb2sat) R 13289 32363 32362 0 -1 0 200195 0 0 0 6575 424 0 0 25 0 1 0 741970784 583430144 111787 4294967295 134512640 135726644 3221224576 3221054296 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 142439 111787 300 300 0 142139 0
vsize: 569756
[startup+80.0025 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 13290
Raw data (stat): 13290 (pb2sat) R 13289 32363 32362 0 -1 0 220232 0 0 0 7536 463 0 0 25 0 1 0 741970784 612360192 131589 4294967295 134512640 135726644 3221224576 3221055056 135288897 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 149502 131590 300 300 0 149202 0
vsize: 598008
[startup+90.0021 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 13290
Raw data (stat): 13290 (pb2sat) R 13289 32363 32362 0 -1 0 236459 0 0 0 8504 495 0 0 25 0 1 0 741970784 686481408 147624 4294967295 134512640 135726644 3221224576 3221055896 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 167598 147624 300 300 0 167298 0
vsize: 670392
[startup+100.002 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 13290
Raw data (stat): 13290 (pb2sat) R 13289 32363 32362 0 -1 0 251199 0 0 0 9473 526 0 0 25 0 1 0 741970784 708886528 162191 4294967295 134512640 135726644 3221224576 3221222828 135277555 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 173068 162191 300 300 0 172768 0
vsize: 692272
[startup+104.825 s]
Raw data (loadavg): 0.97 0.96 0.91 1/54 13290
Raw data (stat): 13290 (pb2sat) R 13289 32363 32362 0 -1 0 251199 0 0 0 9473 526 0 0 25 0 1 0 741970784 708886528 162191 4294967295 134512640 135726644 3221224576 3221222828 135277555 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 173068 162191 300 300 0 172768 0
vsize: 0

Child status: 1
Real time (s): 104.825
CPU time (s): 104.819
CPU user time (s): 99.2249
CPU system time (s): 5.59415
CPU usage (%): 99.9947
Max. virtual memory (Kb): 692272
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####