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/miplib/normalized-mps-v2-13-7-noswot.opb
MD5SUM7e99578ddcc33d345a5429ff14167339
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -41
Optimality of the best value was proved NO
Number of terms in the objective function 425
Biggest coefficient in the objective function 65536
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 3276775
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 113777046323200
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 235765682083953
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark165.164
Number of variables1060
Total number of constraints282
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)75
Number of constraints which are nor clauses,nor cardinality constraints207
Minimum length of a constraint1
Maximum length of a constraint425

Trace number 42796 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 15:13:59 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26014 boxname=wulflinc4 idbench=1314 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7e99578ddcc33d345a5429ff14167339  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-noswot.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-noswot.opb
IDLAUNCH: 26014
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        782276 kB
Buffers:          9328 kB
Cached:         221580 kB
SwapCached:        904 kB
Active:          27064 kB
Inactive:       205908 kB
HighTotal:      131008 kB
HighFree:        18256 kB
LowTotal:       903652 kB
LowFree:        764020 kB
SwapTotal:     2097136 kB
SwapFree:      2095236 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            13948 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 15:15:53 (client local time) WITH STATUS 1 IN 114.618 SECONDS
stats: 26014 7 114.618 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): 0.84 0.94 0.90 2/54 28790
Raw data (stat): 28790 (runsolver) R 28789 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971747848 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): 0.87 0.94 0.90 2/54 28790
Raw data (stat): 28790 (pb2sat-v2) R 28789 21152 21151 0 -1 0 28545 0 0 0 937 61 0 0 25 0 1 0 971747848 88420352 17597 4294967295 134512640 135730672 3221224576 3221200848 134743096 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21587 17597 301 301 0 21286 0
vsize: 86348
[startup+20.002 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 28790
Raw data (stat): 28790 (pb2sat-v2) R 28789 21152 21151 0 -1 0 52713 0 0 0 1888 110 0 0 25 0 1 0 971747848 161935360 30558 4294967295 134512640 135730672 3221224576 3221195808 134770715 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 39535 30558 301 301 0 39234 0
vsize: 158140
[startup+30.0025 s]
Raw data (loadavg): 0.90 0.94 0.90 2/54 28790
Raw data (stat): 28790 (pb2sat-v2) R 28789 21152 21151 0 -1 0 77281 0 0 0 2843 156 0 0 25 0 1 0 971747848 223875072 45730 4294967295 134512640 135730672 3221224576 3221201712 135104819 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 54657 45730 301 301 0 54356 0
vsize: 218628
[startup+40.0027 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 28790
Raw data (stat): 28790 (pb2sat-v2) R 28789 21152 21151 0 -1 0 101258 0 0 0 3793 206 0 0 25 0 1 0 971747848 310194176 57196 4294967295 134512640 135730672 3221224576 3221201928 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 75731 57196 301 301 0 75430 0
vsize: 302924
[startup+50.0026 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 28790
Raw data (stat): 28790 (pb2sat-v2) R 28789 21152 21151 0 -1 0 125788 0 0 0 4747 251 0 0 25 0 1 0 971747848 479428608 81088 4294967295 134512640 135730672 3221224576 3221194976 134775419 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 117048 81091 301 301 0 116747 0
vsize: 468192
[startup+60.0035 s]
Raw data (loadavg): 0.94 0.95 0.90 2/54 28790
Raw data (stat): 28790 (pb2sat-v2) R 28789 21152 21151 0 -1 0 149115 0 0 0 5702 296 0 0 25 0 1 0 971747848 431349760 86273 4294967295 134512640 135730672 3221224576 3221193404 135291218 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 105310 86273 301 301 0 105009 0
vsize: 421240
[startup+70.0044 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 28790
Raw data (stat): 28790 (pb2sat-v2) R 28789 21152 21151 0 -1 0 184660 0 0 0 6633 365 0 0 25 0 1 0 971747848 532013056 97022 4294967295 134512640 135730672 3221224576 3221195344 134770759 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 129886 97023 301 301 0 129585 0
vsize: 519544
[startup+80.0052 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 28790
Raw data (stat): 28790 (pb2sat-v2) R 28789 21152 21151 0 -1 0 194431 0 0 0 7613 385 0 0 25 0 1 0 971747848 565567488 106596 4294967295 134512640 135730672 3221224576 3221205968 134786278 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 138078 106596 301 301 0 137777 0
vsize: 552312
[startup+90.0047 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 28790
Raw data (stat): 28790 (pb2sat-v2) R 28789 21152 21151 0 -1 0 208336 0 0 0 8586 413 0 0 25 0 1 0 971747848 573820928 120262 4294967295 134512640 135730672 3221224576 3221200056 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 140093 120262 301 301 0 139792 0
vsize: 560372
[startup+100.005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 28790
Raw data (stat): 28790 (pb2sat-v2) R 28789 21152 21151 0 -1 0 226759 0 0 0 9551 448 0 0 25 0 1 0 971747848 888143872 138456 4294967295 134512640 135730672 3221224576 3221200080 134775561 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 216832 138458 301 301 0 216531 0
vsize: 867328
[startup+110.006 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 28790
Raw data (stat): 28790 (pb2sat-v2) R 28789 21152 21151 0 -1 0 274560 0 0 0 10459 540 0 0 25 0 1 0 971747848 601333760 138100 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146810 138100 301 301 0 146509 0
vsize: 587240
[startup+114.63 s]
Raw data (loadavg): 0.97 0.95 0.91 1/53 28790
Raw data (stat): 28790 (pb2sat-v2) R 28789 21152 21151 0 -1 0 274560 0 0 0 10459 540 0 0 25 0 1 0 971747848 601333760 138100 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146810 138100 301 301 0 146509 0
vsize: 0

Child status: 1
Real time (s): 114.63
CPU time (s): 114.618
CPU user time (s): 108.937
CPU system time (s): 5.68014
CPU usage (%): 99.9894
Max. virtual memory (Kb): 867328
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####