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/miplib2003/normalized-mps-v2-13-7-harp2.opb
MD5SUM9daf89aad4f1fef005847be296977991
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -63525540
Optimality of the best value was proved NO
Number of terms in the objective function 2993
Biggest coefficient in the objective function 17006200
Number of bits for the biggest coefficient in the objective function 25
Sum of the numbers in the objective function 4415092451
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 4208540000
Number of bits of the biggest number in a constraint 32
Biggest sum of numbers in a constraint 46909379837
Number of bits of the biggest sum of numbers36
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1267.65
Number of variables2993
Total number of constraints3105
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)3066
Number of constraints which are nor clauses,nor cardinality constraints39
Minimum length of a constraint1
Maximum length of a constraint73

Trace number 35580 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-05-28 13:26:13 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24882 boxname=wulflinc6 idbench=1354 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9daf89aad4f1fef005847be296977991  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-harp2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-harp2.opb
IDLAUNCH: 24882
/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:        704852 kB
Buffers:         34516 kB
Cached:         274124 kB
SwapCached:        624 kB
Active:          19884 kB
Inactive:       290932 kB
HighTotal:      131008 kB
HighFree:         4228 kB
LowTotal:       903652 kB
LowFree:        700624 kB
SwapTotal:     2097136 kB
SwapFree:      2095604 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5180 kB
Slab:            13416 kB
Committed_AS:    63728 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:27:53 (client local time) WITH STATUS 1 IN 99.6119 SECONDS
stats: 24882 7 99.6119 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): 0.91 0.95 0.90 2/54 4816
Raw data (stat): 4816 (runsolver) R 4815 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806928574 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0001 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 4816
Raw data (stat): 4816 (pb2sat) R 4815 25568 25567 0 -1 0 30320 0 0 0 934 64 0 0 25 0 1 0 806928574 92778496 19157 4294967295 134512640 135726644 3221224592 3220046496 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22651 19157 300 300 0 22351 0
vsize: 90604
[startup+20.0006 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 4816
Raw data (stat): 4816 (pb2sat) R 4815 25568 25567 0 -1 0 60318 0 0 0 1879 120 0 0 25 0 1 0 806928574 182022144 37903 4294967295 134512640 135726644 3221224592 3220053744 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 44439 37903 300 300 0 44139 0
vsize: 177756
[startup+30.0014 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 4816
Raw data (stat): 4816 (pb2sat) R 4815 25568 25567 0 -1 0 98346 0 0 0 2802 197 0 0 25 0 1 0 806928574 293986304 53710 4294967295 134512640 135726644 3221224592 3220082784 135105721 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 71774 53710 300 300 0 71474 0
vsize: 287096
[startup+40.0016 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 4816
Raw data (stat): 4816 (pb2sat) R 4815 25568 25567 0 -1 0 119052 0 0 0 3758 241 0 0 25 0 1 0 806928574 358359040 74155 4294967295 134512640 135726644 3221224592 3220083004 135278568 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 87490 74155 300 300 0 87190 0
vsize: 349960
[startup+50.002 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 4816
Raw data (stat): 4816 (pb2sat) R 4815 25568 25567 0 -1 0 158316 0 0 0 4688 312 0 0 25 0 1 0 806928574 484167680 93812 4294967295 134512640 135726644 3221224592 3220047768 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 118205 93812 300 300 0 117905 0
vsize: 472820
[startup+60.0018 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 4816
Raw data (stat): 4816 (pb2sat) R 4815 25568 25567 0 -1 0 194829 0 0 0 5609 391 0 0 25 0 1 0 806928574 584830976 105519 4294967295 134512640 135726644 3221224592 3220076080 134767085 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 142781 105519 300 300 0 142481 0
vsize: 571124
[startup+70.007 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 4816
Raw data (stat): 4816 (pb2sat) R 4815 25568 25567 0 -1 0 212098 0 0 0 6577 424 0 0 25 0 1 0 806928574 640688128 122558 4294967295 134512640 135726644 3221224592 3220059424 134605192 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156418 122558 300 300 0 156118 0
vsize: 625672
[startup+80.0154 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 4816
Raw data (stat): 4816 (pb2sat) R 4815 25568 25567 0 -1 0 233343 0 0 0 7532 471 0 0 25 0 1 0 806928574 672600064 143547 4294967295 134512640 135726644 3221224592 3220063008 134784450 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 164209 143547 300 300 0 163909 0
vsize: 656836
[startup+90.0154 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 4816
Raw data (stat): 4816 (pb2sat) R 4815 25568 25567 0 -1 0 253121 0 0 0 8486 511 0 0 25 0 1 0 806928574 705634304 163087 4294967295 134512640 135726644 3221224592 3221222768 135279084 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 172274 163087 300 300 0 171974 0
vsize: 689096
[startup+99.6554 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 4816
Raw data (stat): 4816 (pb2sat) R 4815 25568 25567 0 -1 0 253121 0 0 0 8486 511 0 0 25 0 1 0 806928574 705634304 163087 4294967295 134512640 135726644 3221224592 3221222768 135279084 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 172274 163087 300 300 0 171974 0
vsize: 0

Child status: 1
Real time (s): 99.6549
CPU time (s): 99.6119
CPU user time (s): 94.1677
CPU system time (s): 5.44417
CPU usage (%): 99.9568
Max. virtual memory (Kb): 689096
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####