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-misc06.opb
MD5SUM86682de73055d933eb09b91ae4b3aec3
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 211324891222433890304
Number of bits of the biggest number in a constraint 68
Biggest sum of numbers in a constraint 23205541583449342607360
Number of bits of the biggest sum of numbers75
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.22281
Number of variables51018
Total number of constraints932
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)112
Number of constraints which are nor clauses,nor cardinality constraints820
Minimum length of a constraint1
Maximum length of a constraint13471

Trace number 42525 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 09:57:06 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25745 boxname=wulflinc5 idbench=1045 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  86682de73055d933eb09b91ae4b3aec3  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-misc06.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-misc06.opb
IDLAUNCH: 25745
/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:        768524 kB
Buffers:         27700 kB
Cached:         214916 kB
SwapCached:        688 kB
Active:          31728 kB
Inactive:       212968 kB
HighTotal:      131008 kB
HighFree:        39312 kB
LowTotal:       903652 kB
LowFree:        729212 kB
SwapTotal:     2097136 kB
SwapFree:      2095520 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15640 kB
Committed_AS:    63712 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 09:58:51 (client local time) WITH STATUS 1 IN 104.939 SECONDS
stats: 25745 7 104.939 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): 0.90 0.94 0.90 1/54 12047
Raw data (stat): 12047 (runsolver) R 12046 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969856561 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+10.0008 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 12047
Raw data (stat): 12047 (pb2sat-v2) R 12046 7266 7265 0 -1 0 26624 0 0 0 939 59 0 0 25 0 1 0 969856561 79151104 15496 4294967295 134512640 135730672 3221224576 3221199008 134787062 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19324 15496 301 301 0 19023 0
vsize: 77296
[startup+20.0018 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 12047
Raw data (stat): 12047 (pb2sat-v2) R 12046 7266 7265 0 -1 0 51727 0 0 0 1881 117 0 0 25 0 1 0 969856561 152436736 29638 4294967295 134512640 135730672 3221224576 3221189016 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37216 29638 301 301 0 36915 0
vsize: 148864
[startup+30.0022 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 12047
Raw data (stat): 12047 (pb2sat-v2) R 12046 7266 7265 0 -1 0 90265 0 0 0 2807 191 0 0 25 0 1 0 969856561 269238272 46493 4294967295 134512640 135730672 3221224576 3221221056 135282197 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65732 46493 301 301 0 65431 0
vsize: 262928
[startup+40.0019 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 12047
Raw data (stat): 12047 (pb2sat-v2) R 12046 7266 7265 0 -1 0 103099 0 0 0 3779 219 0 0 25 0 1 0 969856561 302792704 59088 4294967295 134512640 135730672 3221224576 3221157296 134770721 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73924 59088 301 301 0 73623 0
vsize: 295696
[startup+50.0021 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 12047
Raw data (stat): 12047 (pb2sat-v2) R 12046 7266 7265 0 -1 0 145616 0 0 0 4704 294 0 0 25 0 1 0 969856561 502714368 100403 4294967295 134512640 135730672 3221224576 3221201008 134775359 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 122733 100405 301 301 0 122432 0
vsize: 490932
[startup+60.0024 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 12047
Raw data (stat): 12047 (pb2sat-v2) R 12046 7266 7265 0 -1 0 178954 0 0 0 5626 372 0 0 25 0 1 0 969856561 532746240 91585 4294967295 134512640 135730672 3221224576 3221211068 134607984 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 130065 91586 301 301 0 129764 0
vsize: 520260
[startup+70.0021 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 12047
Raw data (stat): 12047 (pb2sat-v2) R 12046 7266 7265 0 -1 0 190717 0 0 0 6598 399 0 0 25 0 1 0 969856561 566300672 103128 4294967295 134512640 135730672 3221224576 3221211584 134770759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 138257 103129 301 301 0 137956 0
vsize: 553028
[startup+80.0032 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 12047
Raw data (stat): 12047 (pb2sat-v2) R 12046 7266 7265 0 -1 0 204576 0 0 0 7565 433 0 0 25 0 1 0 969856561 566300672 116729 4294967295 134512640 135730672 3221224576 3221173580 135291144 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 138257 116730 301 301 0 137956 0
vsize: 553028
[startup+90.0037 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 12047
Raw data (stat): 12047 (pb2sat-v2) R 12046 7266 7265 0 -1 0 219532 0 0 0 8531 467 0 0 25 0 1 0 969856561 628527104 131460 4294967295 134512640 135730672 3221224576 3221174800 134784071 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153449 131460 301 301 0 153148 0
vsize: 613796
[startup+100.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 12047
Raw data (stat): 12047 (pb2sat-v2) R 12046 7266 7265 0 -1 0 242906 0 0 0 9481 517 0 0 25 0 1 0 969856561 640790528 143264 4294967295 134512640 135730672 3221224576 3221222828 135281249 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156443 143264 301 301 0 156142 0
vsize: 625772
[startup+104.954 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 12047
Raw data (stat): 12047 (pb2sat-v2) R 12046 7266 7265 0 -1 0 242906 0 0 0 9481 517 0 0 25 0 1 0 969856561 640790528 143264 4294967295 134512640 135730672 3221224576 3221222828 135281249 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156443 143264 301 301 0 156142 0
vsize: 0

Child status: 1
Real time (s): 104.954
CPU time (s): 104.939
CPU user time (s): 99.4739
CPU system time (s): 5.46517
CPU usage (%): 99.9856
Max. virtual memory (Kb): 625772
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####