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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-swath1.opb
MD5SUMd4e99ebd08b929dc4252a5f0acf82be9
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 1048576000000
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 203989830597156
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.26865
Number of variables39271
Total number of constraints7608
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)2495
Number of constraints which are nor clauses,nor cardinality constraints5113
Minimum length of a constraint1
Maximum length of a constraint37670

Trace number 35742 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-05-28 13:59:57 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25054 boxname=wulflinc1 idbench=1526 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d4e99ebd08b929dc4252a5f0acf82be9  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-swath1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-swath1.opb
IDLAUNCH: 25054
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        702564 kB
Buffers:         36376 kB
Cached:         271120 kB
SwapCached:        680 kB
Active:          28620 kB
Inactive:       281160 kB
HighTotal:      131008 kB
HighFree:          308 kB
LowTotal:       903652 kB
LowFree:        702256 kB
SwapTotal:     2097136 kB
SwapFree:      2095368 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5812 kB
Slab:            16604 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 14:02:11 (client local time) WITH STATUS 1 IN 133.702 SECONDS
stats: 25054 7 133.702 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): 0.83 0.91 0.90 2/55 22211
Raw data (stat): 22211 (runsolver) R 22210 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 750275240 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+10.0005 s]
Raw data (loadavg): 1.01 0.95 0.91 2/55 22264
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 7604 0 0 0 981 17 0 0 25 0 1 0 750275240 24875008 4523 4294967295 134512640 135726644 3221224592 3221221744 134573040 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 6073 4523 300 300 0 5773 0
vsize: 24292
[startup+20.0023 s]
Raw data (loadavg): 1.01 0.95 0.91 2/55 22264
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 7646 0 0 0 1980 18 0 0 25 0 1 0 750275240 24875008 4565 4294967295 134512640 135726644 3221224592 3221221680 134556179 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 6073 4565 300 300 0 5773 0
vsize: 24292
[startup+30.0022 s]
Raw data (loadavg): 1.01 0.95 0.91 2/55 22264
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 7802 0 0 0 2980 18 0 0 25 0 1 0 750275240 25399296 4592 4294967295 134512640 135726644 3221224592 3221221680 134556171 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 6201 4592 300 300 0 5901 0
vsize: 24804
[startup+40.0019 s]
Raw data (loadavg): 1.01 0.95 0.91 2/55 22264
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 31987 0 0 0 3929 69 0 0 25 0 1 0 750275240 99000320 20925 4294967295 134512640 135726644 3221224592 3207284384 134604379 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 24170 20926 300 300 0 23870 0
vsize: 96680
[startup+50.0026 s]
Raw data (loadavg): 1.01 0.95 0.91 2/55 22264
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 59653 0 0 0 4870 128 0 0 25 0 1 0 750275240 194428928 37361 4294967295 134512640 135726644 3221224592 3206843024 134767085 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 47468 37362 300 300 0 47168 0
vsize: 189872
[startup+60.0025 s]
Raw data (loadavg): 1.00 0.95 0.91 2/55 22264
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 85293 0 0 0 5818 180 0 0 25 0 1 0 750275240 255283200 53060 4294967295 134512640 135726644 3221224592 3207271340 135287586 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 62325 53060 300 300 0 62025 0
vsize: 249300
[startup+70.0033 s]
Raw data (loadavg): 1.00 0.96 0.91 2/55 22266
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 114375 0 0 0 6754 245 0 0 25 0 1 0 750275240 365391872 69627 4294967295 134512640 135726644 3221224592 3207167512 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 89207 69627 300 300 0 88907 0
vsize: 356828
[startup+80.0041 s]
Raw data (loadavg): 1.00 0.96 0.91 2/55 22268
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 153192 0 0 0 7679 320 0 0 25 0 1 0 750275240 492519424 89864 4294967295 134512640 135726644 3221224592 3207054956 135298008 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 120244 89864 300 300 0 119944 0
vsize: 480976
[startup+90.0042 s]
Raw data (loadavg): 1.00 0.96 0.91 2/55 22268
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 165541 0 0 0 8650 349 0 0 25 0 1 0 750275240 492519424 101944 4294967295 134512640 135726644 3221224592 3206581112 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 120244 101944 300 300 0 119944 0
vsize: 480976
[startup+100.005 s]
Raw data (loadavg): 1.00 0.96 0.91 2/55 22268
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 205876 0 0 0 9564 436 0 0 25 0 1 0 750275240 615620608 117479 4294967295 134512640 135726644 3221224592 3207227424 134767091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 150298 117479 300 300 0 149998 0
vsize: 601192
[startup+110.004 s]
Raw data (loadavg): 1.00 0.96 0.91 2/55 22268
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 221998 0 0 0 10530 470 0 0 25 0 1 0 750275240 674451456 133384 4294967295 134512640 135726644 3221224592 3206897824 134782506 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 164661 133384 300 300 0 164361 0
vsize: 658644
[startup+120.005 s]
Raw data (loadavg): 1.00 0.96 0.91 2/55 22268
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 242556 0 0 0 11484 516 0 0 25 0 1 0 750275240 710725632 153688 4294967295 134512640 135726644 3221224592 3206487340 135287582 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 173517 153690 300 300 0 173217 0
vsize: 694068
[startup+130.005 s]
Raw data (loadavg): 1.00 0.96 0.91 2/55 22268
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 245768 0 0 0 12476 524 0 0 25 0 1 0 750275240 715587584 156709 4294967295 134512640 135726644 3221224592 3221222844 135277609 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 174704 156709 300 300 0 174404 0
vsize: 698816
[startup+133.706 s]
Raw data (loadavg): 1.00 0.96 0.91 1/54 22268
Raw data (stat): 22211 (pb2sat) R 22210 8378 8377 0 -1 0 245768 0 0 0 12476 524 0 0 25 0 1 0 750275240 715587584 156709 4294967295 134512640 135726644 3221224592 3221222844 135277609 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 174704 156709 300 300 0 174404 0
vsize: 0

Child status: 1
Real time (s): 133.706
CPU time (s): 133.702
CPU user time (s): 128.149
CPU system time (s): 5.55315
CPU usage (%): 99.997
Max. virtual memory (Kb): 698816
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####