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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namemps-v2-13-7/MIPLIB/miplib3/normalized-mps-v2-13-7-noswot.opb
MD5SUM9b64c494b06e0d267a16a958bcbc40bb
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -41
Optimality of the best value was proved YES
Number of terms in the objective function 425
Biggest coefficient in the objective function 65536
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 3276775
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 113777046323200
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 235765682083953
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark206.622
Number of variables1060
Total number of constraints282
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)75
Number of constraints which are nor clauses,nor cardinality constraints207
Minimum length of a constraint1
Maximum length of a constraint425

Trace number 10484

Launcher Data

LAUNCH ON wulflinc5 THE 2005-09-23 18:36:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9237 boxname=wulflinc5 idbench=1033 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9b64c494b06e0d267a16a958bcbc40bb  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-noswot.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-noswot.opb
IDLAUNCH: 9237
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.158
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		: 451.158
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        932888 kB
Buffers:         15688 kB
Cached:          67680 kB
SwapCached:          0 kB
Active:          44300 kB
Inactive:        41928 kB
HighTotal:      131008 kB
HighFree:        59444 kB
LowTotal:       903652 kB
LowFree:        873444 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:            10128 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 18:37:53 (client local time) WITH STATUS 0 IN 98.421 SECONDS
stats: 9237 7 98.421 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/10471/stat): 10471 (pb2sat) R 10470 10471 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22411584 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/10471/statm): 373 2 364 364 0 9 0
[pid=10471] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-noswot.opb

[startup+10.0025 s]
Raw data (loadavg): 0.93 0.98 0.94 2/55 10471
Raw data (/proc/10471/stat): 10471 (pb2sat) R 10470 10471 4060 0 -1 0 31547 0 0 0 932 64 0 0 25 0 1 0 22411584 99139584 20392 4294967295 134512640 135987407 3221224560 3221209440 134931428 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10471/statm): 24204 20392 364 364 0 23840 0
[pid=10471] vsize: 96816
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 96816

[startup+20.0033 s]
Raw data (loadavg): 0.94 0.98 0.94 2/55 10471
Raw data (/proc/10471/stat): 10471 (pb2sat) R 10470 10471 4060 0 -1 0 57892 0 0 0 1875 119 0 0 25 0 1 0 22411584 179744768 35519 4294967295 134512640 135987407 3221224560 3221205756 135480478 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10471/statm): 43883 35519 364 364 0 43519 0
[pid=10471] vsize: 175532
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 175532

[startup+30.004 s]
Raw data (loadavg): 0.95 0.98 0.94 2/55 10471
Raw data (/proc/10471/stat): 10471 (pb2sat) R 10470 10471 4060 0 -1 0 96101 0 0 0 2796 196 0 0 25 0 1 0 22411584 296849408 51529 4294967295 134512640 135987407 3221224560 3221210320 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10471/statm): 72473 51529 364 364 0 72109 0
[pid=10471] vsize: 289892
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 289892

[startup+40.0038 s]
Raw data (loadavg): 0.96 0.98 0.94 2/55 10471
Raw data (/proc/10471/stat): 10471 (pb2sat) R 10470 10471 4060 0 -1 0 109404 0 0 0 3768 224 0 0 25 0 1 0 22411584 335978496 64599 4294967295 134512640 135987407 3221224560 3221208160 134878716 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10471/statm): 82026 64599 364 364 0 81662 0
[pid=10471] vsize: 328104
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 328104

[startup+50.0035 s]
Raw data (loadavg): 0.96 0.98 0.94 2/55 10471
Raw data (/proc/10471/stat): 10471 (pb2sat) R 10470 10471 4060 0 -1 0 148590 0 0 0 4692 295 0 0 25 0 1 0 22411584 528801792 102614 4294967295 134512640 135987407 3221224560 3221202352 134855001 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10471/statm): 129102 102614 364 364 0 128738 0
[pid=10471] vsize: 516408
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 516408

[startup+60.0043 s]
Raw data (loadavg): 0.97 0.98 0.94 2/55 10471
Raw data (/proc/10471/stat): 10471 (pb2sat) R 10470 10471 4060 0 -1 0 184629 0 0 0 5611 376 0 0 25 0 1 0 22411584 564400128 95426 4294967295 134512640 135987407 3221224560 3221208256 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10471/statm): 137793 95426 364 364 0 137429 0
[pid=10471] vsize: 551172
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 551172

[startup+70.005 s]
Raw data (loadavg): 0.97 0.98 0.94 2/55 10471
Raw data (/proc/10471/stat): 10471 (pb2sat) R 10470 10471 4060 0 -1 0 197208 0 0 0 6586 401 0 0 25 0 1 0 22411584 605356032 107792 4294967295 134512640 135987407 3221224560 3221209532 134677714 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10471/statm): 147792 107792 364 364 0 147428 0
[pid=10471] vsize: 591168
Current children cumulated CPU time (s) 69.87
Current children cumulated vsize (Kb) 591168

[startup+80.0057 s]
Raw data (loadavg): 0.98 0.98 0.94 2/55 10471
Raw data (/proc/10471/stat): 10471 (pb2sat) R 10470 10471 4060 0 -1 0 210819 0 0 0 7557 430 0 0 25 0 1 0 22411584 611794944 121165 4294967295 134512640 135987407 3221224560 3221204684 135485066 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10471/statm): 149364 121165 364 364 0 149000 0
[pid=10471] vsize: 597456
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 597456

[startup+90.0065 s]
Raw data (loadavg): 0.98 0.98 0.94 2/55 10471
Raw data (/proc/10471/stat): 10471 (pb2sat) R 10470 10471 4060 0 -1 0 224597 0 0 0 8530 457 0 0 25 0 1 0 22411584 617148416 134696 4294967295 134512640 135987407 3221224560 3221208220 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10471/statm): 150671 134696 364 364 0 150307 0
[pid=10471] vsize: 602684
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 602684



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+98.2688 s]
Raw data (loadavg): 0.98 0.98 0.94 1/55 10471
Raw data (/proc/10471/stat): 10471 (pb2sat) T 10470 10471 4060 0 -1 0 255271 0 0 0 9289 519 0 0 25 0 1 0 22411584 943841280 164489 4294967295 134512640 135987407 3221224560 3221205820 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/10471/statm): 230430 164489 364 364 0 230066 0
[pid=10471] vsize: 921720
Current children cumulated CPU time (s) 98.08
Current children cumulated vsize (Kb) 921720

Sending SIGTERM to -10471
Sleeping 2 seconds

[startup+100.006 s]
Raw data (loadavg): 0.98 0.98 0.94 1/56 10472
Raw data (/proc/10471/stat): 10471 (pb2sat) S 10470 10471 4060 0 -1 0 255272 0 0 0 9289 519 0 0 25 0 1 0 22411584 943841280 164490 4294967295 134512640 135987407 3221224560 3221204520 135549753 0 16384 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10471/statm): 230430 164490 364 364 0 230066 0
[pid=10471] vsize: 921720
Current children cumulated CPU time (s) 98.08
Current children cumulated vsize (Kb) 921720
Sending SIGKILL to -10471
One traced child (pid=10471) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 100.611
CPU time (s): 98.421
CPU user time (s): 92.8939
CPU system time (s): 5.52716
CPU usage (%): 97.8229
Max. virtual memory (cumulated for all children) (Kb): 921720

Verifier Data

ERROR: no interpretation found !