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-sctap3.opb
MD5SUM9acbf5c4d628ba2ce39f0b2ebe624ef2
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 64629117
Optimality of the best value was proved NO
Number of terms in the objective function 37200
Biggest coefficient in the objective function 41943040
Number of bits for the biggest coefficient in the objective function 26
Sum of the numbers in the objective function 30639361500
Number of bits of the sum of numbers in the objective function 35
Biggest number in a constraint 41943040
Number of bits of the biggest number in a constraint 26
Biggest sum of numbers in a constraint 30639361500
Number of bits of the biggest sum of numbers35
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.14
Number of variables49600
Total number of constraints1480
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 constraints1480
Minimum length of a constraint60
Maximum length of a constraint620

Trace number 42742 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 14:16:20 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25957 boxname=wulflinc6 idbench=1257 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9acbf5c4d628ba2ce39f0b2ebe624ef2  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-sctap3.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-sctap3.opb
IDLAUNCH: 25957
/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:        704912 kB
Buffers:         16556 kB
Cached:         290008 kB
SwapCached:       1000 kB
Active:          30736 kB
Inactive:       278016 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        704660 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            15320 kB
Committed_AS:    63844 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:18:25 (client local time) WITH STATUS 1 IN 123.902 SECONDS
stats: 25957 7 123.902 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): 0.90 0.93 0.90 1/54 21962
Raw data (stat): 21962 (runsolver) R 21961 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971411201 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+10.0016 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 21962
Raw data (stat): 21962 (pb2sat-v2) R 21961 25568 25567 0 -1 0 2247 0 0 0 994 4 0 0 25 0 1 0 971411201 8228864 1570 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2009 1570 301 301 0 1708 0
vsize: 8036
[startup+20.0022 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 21962
Raw data (stat): 21962 (pb2sat-v2) R 21961 25568 25567 0 -1 0 2732 0 0 0 1993 6 0 0 25 0 1 0 971411201 9445376 2047 4294967295 134512640 135730672 3221224576 3221221664 134561669 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 2306 2047 301 301 0 2005 0
vsize: 9224
[startup+30.0025 s]
Raw data (loadavg): 0.94 0.94 0.91 3/54 21962
Raw data (stat): 21962 (pb2sat-v2) R 21961 25568 25567 0 -1 0 4775 0 0 0 2989 9 0 0 25 0 1 0 971411201 16224256 3226 4294967295 134512640 135730672 3221224576 3221176416 134607970 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3961 3226 301 301 0 3660 0
vsize: 15844
[startup+40.0028 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 21962
Raw data (stat): 21962 (pb2sat-v2) R 21961 25568 25567 0 -1 0 36453 0 0 0 3917 81 0 0 25 0 1 0 971411201 113328128 20537 4294967295 134512640 135730672 3221224576 3221197544 135301581 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 27668 20537 301 301 0 27367 0
vsize: 110672
[startup+50.0037 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 21962
Raw data (stat): 21962 (pb2sat-v2) R 21961 25568 25567 0 -1 0 60648 0 0 0 4861 137 0 0 25 0 1 0 971411201 237527040 38232 4294967295 134512640 135730672 3221224576 3221198952 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 57990 38234 301 301 0 57689 0
vsize: 231960
[startup+60.0038 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 21962
Raw data (stat): 21962 (pb2sat-v2) R 21961 25568 25567 0 -1 0 94633 0 0 0 5791 208 0 0 25 0 1 0 971411201 303464448 50624 4294967295 134512640 135730672 3221224576 3221210748 134606736 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 74088 50625 301 301 0 73787 0
vsize: 296352
[startup+70.004 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 21962
Raw data (stat): 21962 (pb2sat-v2) R 21961 25568 25567 0 -1 0 112010 0 0 0 6751 248 0 0 25 0 1 0 971411201 313196544 67720 4294967295 134512640 135730672 3221224576 3221209264 134770867 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 76464 67721 301 301 0 76163 0
vsize: 305856
[startup+80.0041 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 21962
Raw data (stat): 21962 (pb2sat-v2) R 21961 25568 25567 0 -1 0 150341 0 0 0 7679 321 0 0 25 0 1 0 971411201 633274368 87462 4294967295 134512640 135730672 3221224576 3221195936 134788521 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154608 87466 301 301 0 154307 0
vsize: 618432
[startup+90.0043 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21962
Raw data (stat): 21962 (pb2sat-v2) R 21961 25568 25567 0 -1 0 185672 0 0 0 8593 407 0 0 25 0 1 0 971411201 566161408 98014 4294967295 134512640 135730672 3221224576 3221179852 135291075 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 138223 98014 301 301 0 137922 0
vsize: 552892
[startup+100.004 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21962
Raw data (stat): 21962 (pb2sat-v2) R 21961 25568 25567 0 -1 0 201129 0 0 0 9556 444 0 0 25 0 1 0 971411201 566161408 113180 4294967295 134512640 135730672 3221224576 3221185520 134743197 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 138223 113181 301 301 0 137922 0
vsize: 552892
[startup+110.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21962
Raw data (stat): 21962 (pb2sat-v2) R 21961 25568 25567 0 -1 0 219993 0 0 0 10510 490 0 0 25 0 1 0 971411201 581435392 131760 4294967295 134512640 135730672 3221224576 3221214192 135291069 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 141952 131761 301 301 0 141651 0
vsize: 567808
[startup+120.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21962
Raw data (stat): 21962 (pb2sat-v2) R 21961 25568 25567 0 -1 0 240366 0 0 0 11460 540 0 0 25 0 1 0 971411201 640032768 140954 4294967295 134512640 135730672 3221224576 3221222828 135281187 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156258 140954 301 301 0 155957 0
vsize: 625032
[startup+123.904 s]
Raw data (loadavg): 0.99 0.95 0.91 1/53 21962
Raw data (stat): 21962 (pb2sat-v2) R 21961 25568 25567 0 -1 0 240366 0 0 0 11460 540 0 0 25 0 1 0 971411201 640032768 140954 4294967295 134512640 135730672 3221224576 3221222828 135281187 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156258 140954 301 301 0 155957 0
vsize: 0

Child status: 1
Real time (s): 123.903
CPU time (s): 123.902
CPU user time (s): 118.209
CPU system time (s): 5.69313
CPU usage (%): 99.9993
Max. virtual memory (Kb): 625032
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####