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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-cycle.opb
MD5SUMca1913a1a38482691af236563bbf8b4e
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 6160
Biggest coefficient in the objective function 52428800000
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 1697189940600
Number of bits of the sum of numbers in the objective function 41
Biggest number in a constraint 47742608998400
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 760939405040925
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1311.59
Number of variables56706
Total number of constraints1961
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 constraints1961
Minimum length of a constraint8
Maximum length of a constraint980

Trace number 42687 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 13:50:04 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25903 boxname=wulflinc4 idbench=1203 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  ca1913a1a38482691af236563bbf8b4e  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-cycle.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-cycle.opb
IDLAUNCH: 25903
/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:        815340 kB
Buffers:          2288 kB
Cached:         194416 kB
SwapCached:        904 kB
Active:          33840 kB
Inactive:       164996 kB
HighTotal:      131008 kB
HighFree:        45136 kB
LowTotal:       903652 kB
LowFree:        770204 kB
SwapTotal:     2097136 kB
SwapFree:      2095236 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14756 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 13:52:08 (client local time) WITH STATUS 1 IN 123.355 SECONDS
stats: 25903 7 123.355 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 0.93 0.90 2/54 27460
Raw data (stat): 27460 (runsolver) R 27459 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971244359 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+10.0019 s]
Raw data (loadavg): 0.87 0.93 0.90 2/54 27460
Raw data (stat): 27460 (pb2sat-v2) R 27459 21152 21151 0 -1 0 25863 0 0 0 944 55 0 0 25 0 1 0 971244359 85684224 14976 4294967295 134512640 135730672 3221224576 3221139040 134783984 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 20919 14976 301 301 0 20618 0
vsize: 83676
[startup+20.0026 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 27460
Raw data (stat): 27460 (pb2sat-v2) R 27459 21152 21151 0 -1 0 52368 0 0 0 1890 109 0 0 25 0 1 0 971244359 169828352 30283 4294967295 134512640 135730672 3221224576 3221142300 135301649 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 41462 30283 301 301 0 41161 0
vsize: 165848
[startup+30.005 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 27460
Raw data (stat): 27460 (pb2sat-v2) R 27459 21152 21151 0 -1 0 80326 0 0 0 2838 161 0 0 25 0 1 0 971244359 245030912 48342 4294967295 134512640 135730672 3221224576 3221141792 135109353 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 59822 48342 301 301 0 59521 0
vsize: 239288
[startup+40.0147 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 27460
Raw data (stat): 27460 (pb2sat-v2) R 27459 21152 21151 0 -1 0 104273 0 0 0 3791 210 0 0 25 0 1 0 971244359 335302656 59813 4294967295 134512640 135730672 3221224576 3221144272 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81861 59813 301 301 0 81560 0
vsize: 327444
[startup+50.1181 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 27460
Raw data (stat): 27460 (pb2sat-v2) R 27459 21152 21151 0 -1 0 122891 0 0 0 4765 246 0 0 25 0 1 0 971244359 363360256 78214 4294967295 134512640 135730672 3221224576 3221143308 134608042 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 88711 78214 301 301 0 88410 0
vsize: 354844
[startup+60.119 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 27460
Raw data (stat): 27460 (pb2sat-v2) R 27459 21152 21151 0 -1 0 160776 0 0 0 5695 316 0 0 25 0 1 0 971244359 490401792 96499 4294967295 134512640 135730672 3221224576 3221142948 135282196 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 119727 96499 301 301 0 119426 0
vsize: 478908
[startup+70.1192 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 27460
Raw data (stat): 27460 (pb2sat-v2) R 27459 21152 21151 0 -1 0 194914 0 0 0 6628 383 0 0 25 0 1 0 971244359 591065088 105883 4294967295 134512640 135730672 3221224576 3221144672 134743088 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144303 105883 301 301 0 144002 0
vsize: 577212
[startup+80.1208 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 27460
Raw data (stat): 27460 (pb2sat-v2) R 27459 21152 21151 0 -1 0 205900 0 0 0 7608 403 0 0 25 0 1 0 971244359 629223424 116688 4294967295 134512640 135730672 3221224576 3221146180 134612555 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153619 116688 301 301 0 153318 0
vsize: 614476
[startup+90.1212 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 27460
Raw data (stat): 27460 (pb2sat-v2) R 27459 21152 21151 0 -1 0 223626 0 0 0 8572 439 0 0 25 0 1 0 971244359 655466496 134208 4294967295 134512640 135730672 3221224576 3221144640 134770086 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160026 134208 301 301 0 159725 0
vsize: 640104
[startup+100.121 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 27460
Raw data (stat): 27460 (pb2sat-v2) R 27459 21152 21151 0 -1 0 241454 0 0 0 9534 477 0 0 25 0 1 0 971244359 681730048 151827 4294967295 134512640 135730672 3221224576 3221147520 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166438 151827 301 301 0 166137 0
vsize: 665752
[startup+110.122 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 27460
Raw data (stat): 27460 (pb2sat-v2) R 27459 21152 21151 0 -1 0 255475 0 0 0 10507 505 0 0 25 0 1 0 971244359 752652288 165684 4294967295 134512640 135730672 3221224576 3221146092 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 183753 165684 301 301 0 183452 0
vsize: 735012
[startup+120.122 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 27460
Raw data (stat): 27460 (pb2sat-v2) R 27459 21152 21151 0 -1 0 259929 0 0 0 11486 526 0 0 25 0 1 0 971244359 399200256 96964 4294967295 134512640 135730672 3221224576 3221222764 135281206 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97461 96964 301 301 0 97160 0
vsize: 389844
[startup+123.353 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 27460
Raw data (stat): 27460 (pb2sat-v2) R 27459 21152 21151 0 -1 0 259929 0 0 0 11486 526 0 0 25 0 1 0 971244359 399200256 96964 4294967295 134512640 135730672 3221224576 3221222764 135281206 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97461 96964 301 301 0 97160 0
vsize: 0

Child status: 1
Real time (s): 123.352
CPU time (s): 123.355
CPU user time (s): 117.886
CPU system time (s): 5.46917
CPU usage (%): 100.003
Max. virtual memory (Kb): 735012
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####