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-v2-20-10/MIPLIB/miplib3/normalized-mps-v2-20-10-swath.opb
MD5SUM88ff0d04f1767526eb86ccd93c80fd2c
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 16777216000000
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 66042304016951
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.269958
Number of variables9155
Total number of constraints7608
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)7147
Number of constraints which are nor clauses,nor cardinality constraints461
Minimum length of a constraint1
Maximum length of a constraint6754

Trace number 42551 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 10:33:45 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25772 boxname=wulflinc1 idbench=1072 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  88ff0d04f1767526eb86ccd93c80fd2c  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-swath.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-swath.opb
IDLAUNCH: 25772
/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:        574892 kB
Buffers:         33624 kB
Cached:         401404 kB
SwapCached:       1192 kB
Active:          49544 kB
Inactive:       387780 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        574640 kB
SwapTotal:     2097136 kB
SwapFree:      2094880 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16648 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 10:35:25 (client local time) WITH STATUS 1 IN 100.006 SECONDS
stats: 25772 7 100.006 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): 0.85 0.94 0.90 2/55 17476
Raw data (stat): 17476 (runsolver) R 17475 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 913219252 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+9.99964 s]
Raw data (loadavg): 0.88 0.94 0.90 2/55 17476
Raw data (stat): 17476 (pb2sat-v2) R 17475 8378 8377 0 -1 0 25848 0 0 0 939 60 0 0 25 0 1 0 913219252 79568896 14773 4294967295 134512640 135730672 3221224576 3218088960 134551724 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19426 14773 301 301 0 19125 0
vsize: 77704
[startup+20.0004 s]
Raw data (loadavg): 0.89 0.94 0.90 2/55 17476
Raw data (stat): 17476 (pb2sat-v2) R 17475 8378 8377 0 -1 0 54240 0 0 0 1876 122 0 0 25 0 1 0 913219252 175407104 31924 4294967295 134512640 135730672 3221224576 3219289072 134784086 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42824 31924 301 301 0 42523 0
vsize: 171296
[startup+30.0011 s]
Raw data (loadavg): 0.91 0.94 0.90 2/55 17476
Raw data (stat): 17476 (pb2sat-v2) R 17475 8378 8377 0 -1 0 81958 0 0 0 2825 174 0 0 25 0 1 0 913219252 243924992 49688 4294967295 134512640 135730672 3221224576 3218168736 134732231 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 59552 49688 301 301 0 59251 0
vsize: 238208
[startup+40.002 s]
Raw data (loadavg): 0.92 0.94 0.90 2/55 17476
Raw data (stat): 17476 (pb2sat-v2) R 17475 8378 8377 0 -1 0 111265 0 0 0 3760 238 0 0 25 0 1 0 913219252 351330304 66465 4294967295 134512640 135730672 3221224576 3218157504 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85774 66465 301 301 0 85473 0
vsize: 343096
[startup+50.0027 s]
Raw data (loadavg): 0.93 0.95 0.90 2/55 17476
Raw data (stat): 17476 (pb2sat-v2) R 17475 8378 8377 0 -1 0 151421 0 0 0 4680 318 0 0 25 0 1 0 913219252 482422784 87008 4294967295 134512640 135730672 3221224576 3218148224 134770688 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 117779 87008 301 301 0 117478 0
vsize: 471116
[startup+60.0028 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 17476
Raw data (stat): 17476 (pb2sat-v2) R 17475 8378 8377 0 -1 0 164722 0 0 0 5651 347 0 0 25 0 1 0 913219252 482422784 100030 4294967295 134512640 135730672 3221224576 3218091568 134786794 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 117779 100031 301 301 0 117478 0
vsize: 471116
[startup+70.0033 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 17476
Raw data (stat): 17476 (pb2sat-v2) R 17475 8378 8377 0 -1 0 205768 0 0 0 6559 439 0 0 25 0 1 0 913219252 604860416 116262 4294967295 134512640 135730672 3221224576 3218199188 135291068 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 147671 116262 301 301 0 147370 0
vsize: 590684
[startup+80.003 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 17476
Raw data (stat): 17476 (pb2sat-v2) R 17475 8378 8377 0 -1 0 223483 0 0 0 7523 475 0 0 25 0 1 0 913219252 665899008 133743 4294967295 134512640 135730672 3221224576 3218169192 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162573 133743 301 301 0 162272 0
vsize: 650292
[startup+90.004 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 17476
Raw data (stat): 17476 (pb2sat-v2) R 17475 8378 8377 0 -1 0 243282 0 0 0 8480 516 0 0 25 0 1 0 913219252 700248064 153282 4294967295 134512640 135730672 3221224576 3219202112 135143240 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 170959 153282 301 301 0 170658 0
vsize: 683836
[startup+100.005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 17476
Raw data (stat): 17476 (pb2sat-v2) R 17475 8378 8377 0 -1 4 243286 0 0 0 9452 544 0 0 25 0 1 0 913219252 0 0 4294967295 0 0 0 0 0 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 0 0 0 0 0 0 0
vsize: 0
[startup+100.045 s]
Raw data (loadavg): 0.97 0.95 0.91 1/54 17476
Raw data (stat): 17476 (pb2sat-v2) R 17475 8378 8377 0 -1 4 243286 0 0 0 9452 544 0 0 25 0 1 0 913219252 0 0 4294967295 0 0 0 0 0 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 0 0 0 0 0 0 0
vsize: 0

Child status: 1
Real time (s): 100.045
CPU time (s): 100.006
CPU user time (s): 94.5286
CPU system time (s): 5.47717
CPU usage (%): 99.9612
Max. virtual memory (Kb): 683836
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####