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-neos13.opb
MD5SUM992db28a85bbc8236f0033edb6d28dee
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -4571955
Optimality of the best value was proved NO
Number of terms in the objective function 84
Biggest coefficient in the objective function 12944832
Number of bits for the biggest coefficient in the objective function 24
Sum of the numbers in the objective function 283368115
Number of bits of the sum of numbers in the objective function 29
Biggest number in a constraint 8745792000
Number of bits of the biggest number in a constraint 34
Biggest sum of numbers in a constraint 79079134958
Number of bits of the biggest sum of numbers37
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1291.11
Number of variables1899
Total number of constraints22679
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)1816
Number of constraints which are nor clauses,nor cardinality constraints20863
Minimum length of a constraint1
Maximum length of a constraint1815

Trace number 42984 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 20:35:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26205 boxname=wulflinc6 idbench=1505 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  992db28a85bbc8236f0033edb6d28dee  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-neos13.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-neos13.opb
IDLAUNCH: 26205
/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:        585296 kB
Buffers:         23548 kB
Cached:         402360 kB
SwapCached:        996 kB
Active:          64588 kB
Inactive:       363516 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        585044 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            15588 kB
Committed_AS:    63844 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 20:37:25 (client local time) WITH STATUS 1 IN 101.168 SECONDS
stats: 26205 7 101.168 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): 0.87 0.97 0.91 2/54 26105
Raw data (stat): 26105 (runsolver) R 26104 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 973687864 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+10.001 s]
Raw data (loadavg): 0.89 0.97 0.91 2/54 26105
Raw data (stat): 26105 (pb2sat-v2) R 26104 25568 25567 0 -1 0 29063 0 0 0 941 58 0 0 25 0 1 0 973687864 89866240 18004 4294967295 134512640 135730672 3221224576 3221185304 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21940 18004 301 301 0 21639 0
vsize: 87760
[startup+20.0016 s]
Raw data (loadavg): 0.91 0.97 0.91 2/54 26105
Raw data (stat): 26105 (pb2sat-v2) R 26104 25568 25567 0 -1 0 57805 0 0 0 1887 112 0 0 25 0 1 0 973687864 177389568 35377 4294967295 134512640 135730672 3221224576 3221184296 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43308 35378 301 301 0 43007 0
vsize: 173232
[startup+30.0025 s]
Raw data (loadavg): 0.92 0.97 0.91 2/54 26105
Raw data (stat): 26105 (pb2sat-v2) R 26104 25568 25567 0 -1 0 95660 0 0 0 2816 184 0 0 25 0 1 0 973687864 290738176 50598 4294967295 134512640 135730672 3221224576 3221182352 134770759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 70981 50598 301 301 0 70680 0
vsize: 283924
[startup+40.0032 s]
Raw data (loadavg): 0.93 0.97 0.91 2/54 26105
Raw data (stat): 26105 (pb2sat-v2) R 26104 25568 25567 0 -1 0 114446 0 0 0 3780 220 0 0 25 0 1 0 973687864 350920704 69135 4294967295 134512640 135730672 3221224576 3221183912 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85674 69135 301 301 0 85373 0
vsize: 342696
[startup+50.0031 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 26105
Raw data (stat): 26105 (pb2sat-v2) R 26104 25568 25567 0 -1 0 154707 0 0 0 4707 294 0 0 25 0 1 0 973687864 478814208 88327 4294967295 134512640 135730672 3221224576 3221183232 134786302 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 116898 88327 301 301 0 116597 0
vsize: 467592
[startup+60.0037 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 26105
Raw data (stat): 26105 (pb2sat-v2) R 26104 25568 25567 0 -1 0 181471 0 0 0 5654 348 0 0 25 0 1 0 973687864 680144896 114850 4294967295 134512640 135730672 3221224576 3221183408 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166051 114855 301 301 0 165750 0
vsize: 664204
[startup+70.0038 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 26105
Raw data (stat): 26105 (pb2sat-v2) R 26104 25568 25567 0 -1 0 208444 0 0 0 6600 401 0 0 25 0 1 0 973687864 634523648 117004 4294967295 134512640 135730672 3221224576 3221182688 134783980 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154913 117004 301 301 0 154612 0
vsize: 619652
[startup+80.0045 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 26105
Raw data (stat): 26105 (pb2sat-v2) R 26104 25568 25567 0 -1 0 226299 0 0 0 7566 436 0 0 25 0 1 0 973687864 661422080 134632 4294967295 134512640 135730672 3221224576 3221183848 134546301 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161480 134633 301 301 0 161179 0
vsize: 645920
[startup+90.0055 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 26105
Raw data (stat): 26105 (pb2sat-v2) R 26104 25568 25567 0 -1 0 246861 0 0 0 8526 476 0 0 25 0 1 0 973687864 693993472 154508 4294967295 134512640 135730672 3221224576 3221183696 134786335 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 169432 154508 301 301 0 169131 0
vsize: 677728
[startup+100.006 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 26105
Raw data (stat): 26105 (pb2sat-v2) R 26104 25568 25567 0 -1 0 248813 0 0 0 9510 492 0 0 25 0 1 0 973687864 378777600 91989 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 92475 91989 301 301 0 92174 0
vsize: 369900
[startup+101.141 s]
Raw data (loadavg): 0.97 0.97 0.91 1/53 26105
Raw data (stat): 26105 (pb2sat-v2) R 26104 25568 25567 0 -1 0 248813 0 0 0 9510 492 0 0 25 0 1 0 973687864 378777600 91989 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 92475 91989 301 301 0 92174 0
vsize: 0

Child status: 1
Real time (s): 101.141
CPU time (s): 101.168
CPU user time (s): 96.0454
CPU system time (s): 5.12222
CPU usage (%): 100.026
Max. virtual memory (Kb): 677728
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####