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-v2-20-10/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-blp-ar98.opb
MD5SUM181a05258ae35e5f3b5b834240f1847a
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(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 83886080000000
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 572975239517507
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables20024
Total number of constraints17064
Number of constraints which are clauses1
Number of constraints which are cardinality constraints (but not clauses)16718
Number of constraints which are nor clauses,nor cardinality constraints345
Minimum length of a constraint1
Maximum length of a constraint15837

Trace number 10194

Launcher Data

LAUNCH ON wulflinc22 THE 2005-09-23 17:34:21 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8955 boxname=wulflinc22 idbench=751 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  181a05258ae35e5f3b5b834240f1847a  /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-blp-ar98.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-blp-ar98.opb
IDLAUNCH: 8955
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 450.985
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	: 3
cpu MHz		: 450.985
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:        904068 kB
Buffers:         12360 kB
Cached:         100724 kB
SwapCached:          0 kB
Active:          58472 kB
Inactive:        57572 kB
HighTotal:      131008 kB
HighFree:        29904 kB
LowTotal:       903652 kB
LowFree:        874164 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8964 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:36:14 (client local time) WITH STATUS 0 IN 110.598 SECONDS
stats: 8955 7 110.598 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/9050/stat): 9050 (pb2sat) R 9049 9050 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22023036 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9050/statm): 373 2 364 364 0 9 0
[pid=9050] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-blp-ar98.opb

[startup+10.002 s]
Raw data (loadavg): 0.93 0.95 0.92 2/55 9050
Raw data (/proc/9050/stat): 9050 (pb2sat) R 9049 9050 4060 0 -1 0 13052 0 0 0 963 34 0 0 25 0 1 0 22023036 40210432 7538 4294967295 134512640 135987407 3221224560 3221001408 134866070 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9050/statm): 9817 7539 364 364 0 9453 0
[pid=9050] vsize: 39268
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 39268

[startup+20.0027 s]
Raw data (loadavg): 0.94 0.95 0.92 2/55 9050
Raw data (/proc/9050/stat): 9050 (pb2sat) R 9049 9050 4060 0 -1 0 45184 0 0 0 1894 102 0 0 25 0 1 0 22023036 166731776 29108 4294967295 134512640 135987407 3221224560 3220601152 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9050/statm): 40706 29112 364 364 0 40342 0
[pid=9050] vsize: 162824
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 162824

[startup+30.0034 s]
Raw data (loadavg): 0.95 0.95 0.92 2/55 9050
Raw data (/proc/9050/stat): 9050 (pb2sat) R 9049 9050 4060 0 -1 0 59346 0 0 0 2857 138 0 0 25 0 1 0 22023036 163672064 36904 4294967295 134512640 135987407 3221224560 3220884956 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9050/statm): 39959 36904 364 364 0 39595 0
[pid=9050] vsize: 159836
Current children cumulated CPU time (s) 29.95
Current children cumulated vsize (Kb) 159836

[startup+40.0041 s]
Raw data (loadavg): 0.95 0.96 0.92 2/55 9050
Raw data (/proc/9050/stat): 9050 (pb2sat) R 9049 9050 4060 0 -1 0 97739 0 0 0 3772 221 0 0 25 0 1 0 22023036 313286656 53108 4294967295 134512640 135987407 3221224560 3221209952 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9050/statm): 76486 53108 364 364 0 76122 0
[pid=9050] vsize: 305944
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 305944

[startup+50.0039 s]
Raw data (loadavg): 0.96 0.96 0.92 2/55 9050
Raw data (/proc/9050/stat): 9050 (pb2sat) R 9049 9050 4060 0 -1 0 112060 0 0 0 4736 257 0 0 25 0 1 0 22023036 317341696 67191 4294967295 134512640 135987407 3221224560 3220951820 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9050/statm): 77476 67191 364 364 0 77112 0
[pid=9050] vsize: 309904
Current children cumulated CPU time (s) 49.93
Current children cumulated vsize (Kb) 309904

[startup+60.0046 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 9050
Raw data (/proc/9050/stat): 9050 (pb2sat) R 9049 9050 4060 0 -1 0 153132 0 0 0 5642 347 0 0 25 0 1 0 22023036 446230528 88652 4294967295 134512640 135987407 3221224560 3221141996 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9050/statm): 108943 88652 364 364 0 108579 0
[pid=9050] vsize: 435772
Current children cumulated CPU time (s) 59.89
Current children cumulated vsize (Kb) 435772

[startup+70.0043 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 9050
Raw data (/proc/9050/stat): 9050 (pb2sat) R 9049 9050 4060 0 -1 0 187821 0 0 0 6562 427 0 0 25 0 1 0 22023036 583692288 98598 4294967295 134512640 135987407 3221224560 3220747984 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9050/statm): 142503 98599 364 364 0 142139 0
[pid=9050] vsize: 570012
Current children cumulated CPU time (s) 69.89
Current children cumulated vsize (Kb) 570012

[startup+80.005 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 9050
Raw data (/proc/9050/stat): 9050 (pb2sat) R 9049 9050 4060 0 -1 0 202251 0 0 0 7524 464 0 0 25 0 1 0 22023036 587476992 112787 4294967295 134512640 135987407 3221224560 3221113408 134878060 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9050/statm): 143427 112788 364 364 0 143063 0
[pid=9050] vsize: 573708
Current children cumulated CPU time (s) 79.88
Current children cumulated vsize (Kb) 573708

[startup+90.0047 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 9050
Raw data (/proc/9050/stat): 9050 (pb2sat) R 9049 9050 4060 0 -1 0 216493 0 0 0 8489 498 0 0 25 0 1 0 22023036 591667200 126792 4294967295 134512640 135987407 3221224560 3220973196 135499901 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9050/statm): 144450 126792 364 364 0 144086 0
[pid=9050] vsize: 577800
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 577800

[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 9050
Raw data (/proc/9050/stat): 9050 (pb2sat) R 9049 9050 4060 0 -1 0 227697 0 0 0 9460 526 0 0 25 0 1 0 22023036 645513216 137811 4294967295 134512640 135987407 3221224560 3221126624 134559083 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9050/statm): 157596 137811 364 364 0 157232 0
[pid=9050] vsize: 630384
Current children cumulated CPU time (s) 99.86
Current children cumulated vsize (Kb) 630384

[startup+110.005 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 9050
Raw data (/proc/9050/stat): 9050 (pb2sat) R 9049 9050 4060 0 -1 0 239364 0 0 0 10429 555 0 0 25 0 1 0 22023036 665305088 149300 4294967295 134512640 135987407 3221224560 3216528304 134556863 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9050/statm): 162428 149300 364 364 0 162064 0
[pid=9050] vsize: 649712
Current children cumulated CPU time (s) 109.84
Current children cumulated vsize (Kb) 649712



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+110.426 s]
Raw data (loadavg): 0.98 0.96 0.92 1/55 9050
Raw data (/proc/9050/stat): 9050 (pb2sat) T 9049 9050 4060 0 -1 0 240182 0 0 0 10469 557 0 0 25 0 1 0 22023036 951738368 150107 4294967295 134512640 135987407 3221224560 3216518032 135544035 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9050/statm): 232358 150107 364 364 0 231994 0
[pid=9050] vsize: 929432
Current children cumulated CPU time (s) 110.26
Current children cumulated vsize (Kb) 929432

Sending SIGTERM to -9050
Sleeping 2 seconds
Sending SIGKILL to -9050
One traced child (pid=9050) 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): 112.736
CPU time (s): 110.598
CPU user time (s): 104.719
CPU system time (s): 5.87911
CPU usage (%): 98.1038
Max. virtual memory (cumulated for all children) (Kb): 929432

Verifier Data

ERROR: no interpretation found !