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-qap10.opb
MD5SUM8504dbc55a414805ff1a65155550ce21
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 184
Optimality of the best value was proved NO
Number of terms in the objective function 33930
Biggest coefficient in the objective function 204800
Number of bits for the biggest coefficient in the objective function 18
Sum of the numbers in the objective function 188622348
Number of bits of the sum of numbers in the objective function 28
Biggest number in a constraint 204800
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 188622348
Number of bits of the biggest sum of numbers28
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.33
Number of variables53950
Total number of constraints1820
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 constraints1820
Minimum length of a constraint130
Maximum length of a constraint130

Trace number 43003 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 21:04:20 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26223 boxname=wulflinc5 idbench=1523 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8504dbc55a414805ff1a65155550ce21  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-qap10.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-qap10.opb
IDLAUNCH: 26223
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        639120 kB
Buffers:         28784 kB
Cached:         343268 kB
SwapCached:        656 kB
Active:          37820 kB
Inactive:       336280 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        638868 kB
SwapTotal:     2097136 kB
SwapFree:      2095540 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15764 kB
Committed_AS:    63708 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 21:06:13 (client local time) WITH STATUS 1 IN 112.945 SECONDS
stats: 26223 7 112.945 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): 0.93 0.97 0.91 2/54 19972
Raw data (stat): 19972 (runsolver) R 19971 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 973860505 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+10.001 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 19972
Raw data (stat): 19972 (pb2sat-v2) R 19971 7266 7265 0 -1 0 2192 0 0 0 994 5 0 0 25 0 1 0 973860505 8093696 1516 4294967295 134512640 135730672 3221224576 3221221612 134637860 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1976 1516 301 301 0 1675 0
vsize: 7904
[startup+20.0018 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 19972
Raw data (stat): 19972 (pb2sat-v2) R 19971 7266 7265 0 -1 0 2740 0 0 0 1991 7 0 0 25 0 1 0 973860505 9445376 2055 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2306 2055 301 301 0 2005 0
vsize: 9224
[startup+30.0025 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 19972
Raw data (stat): 19972 (pb2sat-v2) R 19971 7266 7265 0 -1 0 24126 0 0 0 2947 51 0 0 25 0 1 0 973860505 72527872 13028 4294967295 134512640 135730672 3221224576 3221196360 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 17707 13029 301 301 0 17406 0
vsize: 70828
[startup+40.0032 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 19972
Raw data (stat): 19972 (pb2sat-v2) R 19971 7266 7265 0 -1 0 51798 0 0 0 3887 112 0 0 25 0 1 0 973860505 155824128 29701 4294967295 134512640 135730672 3221224576 3221177808 134788138 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 38043 29702 301 301 0 37742 0
vsize: 152172
[startup+50.0039 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 19972
Raw data (stat): 19972 (pb2sat-v2) R 19971 7266 7265 0 -1 0 92609 0 0 0 4802 197 0 0 25 0 1 0 973860505 274796544 48791 4294967295 134512640 135730672 3221224576 3221183936 135282214 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 67089 48791 301 301 0 66788 0
vsize: 268356
[startup+60.0037 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 19972
Raw data (stat): 19972 (pb2sat-v2) R 19971 7266 7265 0 -1 0 108524 0 0 0 5764 235 0 0 25 0 1 0 973860505 309837824 64423 4294967295 134512640 135730672 3221224576 3221210268 134606736 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 75644 64424 301 301 0 75343 0
vsize: 302576
[startup+70.0044 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 19972
Raw data (stat): 19972 (pb2sat-v2) R 19971 7266 7265 0 -1 0 150303 0 0 0 6682 318 0 0 25 0 1 0 973860505 438321152 86573 4294967295 134512640 135730672 3221224576 3221203052 135291115 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 107012 86573 301 301 0 106711 0
vsize: 428048
[startup+80.0052 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 19972
Raw data (stat): 19972 (pb2sat-v2) R 19971 7266 7265 0 -1 0 186915 0 0 0 7599 400 0 0 25 0 1 0 973860505 572538880 98389 4294967295 134512640 135730672 3221224576 3221179580 135291190 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 139780 98390 301 301 0 139479 0
vsize: 559120
[startup+90.0049 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 19974
Raw data (stat): 19972 (pb2sat-v2) R 19971 7266 7265 0 -1 0 203579 0 0 0 8560 440 0 0 25 0 1 0 973860505 572538880 114752 4294967295 134512640 135730672 3221224576 3221165096 134813553 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 139780 114753 301 301 0 139479 0
vsize: 559120
[startup+100.006 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 19974
Raw data (stat): 19972 (pb2sat-v2) R 19971 7266 7265 0 -1 0 221119 0 0 0 9519 481 0 0 25 0 1 0 973860505 632061952 132017 4294967295 134512640 135730672 3221224576 3221183120 134783984 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154312 132017 301 301 0 154011 0
vsize: 617248
[startup+110.006 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 19974
Raw data (stat): 19972 (pb2sat-v2) R 19971 7266 7265 0 -1 0 242824 0 0 0 10452 548 0 0 25 0 1 0 973860505 281071616 68459 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 68621 68459 301 301 0 68320 0
vsize: 274484
[startup+112.943 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 19974
Raw data (stat): 19972 (pb2sat-v2) R 19971 7266 7265 0 -1 0 242824 0 0 0 10452 548 0 0 25 0 1 0 973860505 281071616 68459 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 68621 68459 301 301 0 68320 0
vsize: 0

Child status: 1
Real time (s): 112.942
CPU time (s): 112.945
CPU user time (s): 107.316
CPU system time (s): 5.62914
CPU usage (%): 100.002
Max. virtual memory (Kb): 617248
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####