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/fctp/normalized-mps-v2-20-10-ran8x32.opb
MD5SUM14da1db0c6acfbdddee3af5ad3788f2d
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 12128256
Optimality of the best value was proved NO
Number of terms in the objective function 7936
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 1548380176990
Number of bits of the sum of numbers in the objective function 41
Biggest number in a constraint 5368709120
Number of bits of the biggest number in a constraint 33
Biggest sum of numbers in a constraint 1548380176990
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 benchmark1231.81
Number of variables7936
Total number of constraints296
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 constraints296
Minimum length of a constraint31
Maximum length of a constraint960

Trace number 35323

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc9 THE 2005-05-28 12:54:21 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24634 boxname=wulflinc9 idbench=1106 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  14da1db0c6acfbdddee3af5ad3788f2d  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-ran8x32.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-ran8x32.opb
IDLAUNCH: 24634
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
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		: 451.242
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:        711736 kB
Buffers:         35728 kB
Cached:         263124 kB
SwapCached:        552 kB
Active:          18644 kB
Inactive:       282288 kB
HighTotal:      131008 kB
HighFree:         2436 kB
LowTotal:       903652 kB
LowFree:        709300 kB
SwapTotal:     2097136 kB
SwapFree:      2095648 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5144 kB
Slab:            16360 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:56:05 (client local time) WITH STATUS 1 IN 103.618 SECONDS
stats: 24634 7 103.618 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): 0.85 0.94 0.90 2/54 19453
Raw data (stat): 19453 (runsolver) R 19452 3944 3943 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806736991 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+10.0003 s]
Raw data (loadavg): 0.87 0.94 0.90 2/54 19453
Raw data (stat): 19453 (pb2sat) R 19452 3944 3943 0 -1 0 28825 0 0 0 938 60 0 0 25 0 1 0 806736991 90877952 17705 4294967295 134512640 135726644 3221224576 3218651280 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22187 17706 300 300 0 21887 0
vsize: 88748
[startup+20.0007 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 19453
Raw data (stat): 19453 (pb2sat) R 19452 3944 3943 0 -1 0 58409 0 0 0 1873 126 0 0 25 0 1 0 806736991 178053120 36064 4294967295 134512640 135726644 3221224576 3218162552 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43470 36064 300 300 0 43170 0
vsize: 173880
[startup+30.0008 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 19453
Raw data (stat): 19453 (pb2sat) R 19452 3944 3943 0 -1 0 99793 0 0 0 2791 208 0 0 25 0 1 0 806736991 302899200 55246 4294967295 134512640 135726644 3221224576 3218271808 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73950 55246 300 300 0 73650 0
vsize: 295800
[startup+40.0016 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 19453
Raw data (stat): 19453 (pb2sat) R 19452 3944 3943 0 -1 0 116983 0 0 0 3754 246 0 0 25 0 1 0 806736991 351457280 72199 4294967295 134512640 135726644 3221224576 3218191664 134767049 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85805 72200 300 300 0 85505 0
vsize: 343220
[startup+50.0021 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 19453
Raw data (stat): 19453 (pb2sat) R 19452 3944 3943 0 -1 0 159771 0 0 0 4673 326 0 0 25 0 1 0 806736991 560300032 113920 4294967295 134512640 135726644 3221224576 3218249760 134771796 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 136792 113922 300 300 0 136492 0
vsize: 547168
[startup+60.0023 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 19453
Raw data (stat): 19453 (pb2sat) R 19452 3944 3943 0 -1 0 199175 0 0 0 5582 417 0 0 25 0 1 0 806736991 634433536 109999 4294967295 134512640 135726644 3221224576 3218458800 134780358 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154891 109999 300 300 0 154591 0
vsize: 619564
[startup+70.003 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 19453
Raw data (stat): 19453 (pb2sat) R 19452 3944 3943 0 -1 0 211855 0 0 0 6557 443 0 0 25 0 1 0 806736991 634433536 122457 4294967295 134512640 135726644 3221224576 3218318204 134634291 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154891 122458 300 300 0 154591 0
vsize: 619564
[startup+80.0035 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 19453
Raw data (stat): 19453 (pb2sat) R 19452 3944 3943 0 -1 0 232760 0 0 0 7510 490 0 0 25 0 1 0 806736991 662818816 143116 4294967295 134512640 135726644 3221224576 3218593692 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161821 143117 300 300 0 161521 0
vsize: 647284
[startup+90.0069 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 19453
Raw data (stat): 19453 (pb2sat) R 19452 3944 3943 0 -1 0 250066 0 0 0 8477 524 0 0 25 0 1 0 806736991 737615872 160223 4294967295 134512640 135726644 3221224576 3218386080 134782666 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 180115 160224 300 300 0 179815 0
vsize: 720328
[startup+100.01 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 19453
Raw data (stat): 19453 (pb2sat) R 19452 3944 3943 0 -1 0 266712 0 0 0 9439 562 0 0 25 0 1 0 806736991 762183680 176646 4294967295 134512640 135726644 3221224576 3221222672 134604379 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186080 176646 300 300 0 185780 0
vsize: 744320
[startup+103.658 s]
Raw data (loadavg): 1.05 0.97 0.91 1/53 19453
Raw data (stat): 19453 (pb2sat) R 19452 3944 3943 0 -1 0 266712 0 0 0 9439 562 0 0 25 0 1 0 806736991 762183680 176646 4294967295 134512640 135726644 3221224576 3221222672 134604379 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186080 176646 300 300 0 185780 0
vsize: 0

Child status: 1
Real time (s): 103.61
CPU time (s): 103.618
CPU user time (s): 97.6382
CPU system time (s): 5.98009
CPU usage (%): 100.008
Max. virtual memory (Kb): 744320
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####