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/fctp/normalized-mps-v2-20-10-gr4x6.opb
MD5SUMd90fce7408f7990dccb3ba4f8fa1c8f6
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 24752128
Optimality of the best value was proved NO
Number of terms in the objective function 744
Biggest coefficient in the objective function 151934468096
Number of bits for the biggest coefficient in the objective function 38
Sum of the numbers in the objective function 3470370333536
Number of bits of the sum of numbers in the objective function 42
Biggest number in a constraint 151934468096
Number of bits of the biggest number in a constraint 38
Biggest sum of numbers in a constraint 3470370333536
Number of bits of the biggest sum of numbers42
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.05
Number of variables744
Total number of constraints34
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints34
Minimum length of a constraint31
Maximum length of a constraint180

Trace number 10125

Launcher Data

LAUNCH ON wulflinc22 THE 2005-09-23 17:03:50 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8881 boxname=wulflinc22 idbench=677 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d90fce7408f7990dccb3ba4f8fa1c8f6  /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-gr4x6.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-gr4x6.opb
IDLAUNCH: 8881
/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:        921248 kB
Buffers:         12164 kB
Cached:          84260 kB
SwapCached:          0 kB
Active:          45020 kB
Inactive:        54308 kB
HighTotal:      131008 kB
HighFree:        46340 kB
LowTotal:       903652 kB
LowFree:        874908 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8404 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:05:48 (client local time) WITH STATUS 1 IN 117.955 SECONDS
stats: 8881 7 117.955 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 48618794
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023
c CONFLICT during preprocess 
c trying from 1024 to 1535

	Unexpected exception :
	St9bad_alloc

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/8602/stat): 8602 (pb2sat) R 8601 8602 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21839804 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8602/statm): 373 2 364 364 0 9 0
[pid=8602] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-gr4x6.opb

[startup+10.0023 s]
Raw data (loadavg): 0.92 0.95 0.94 2/55 8602
Raw data (/proc/8602/stat): 8602 (pb2sat) R 8601 8602 4060 0 -1 0 29957 0 0 0 928 66 0 0 25 0 1 0 21839804 97509376 18809 4294967295 134512640 135987407 3221224560 3221024636 134636959 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8602/statm): 23806 18809 364 364 0 23442 0
[pid=8602] vsize: 95224
Current children cumulated CPU time (s) 9.94
Current children cumulated vsize (Kb) 95224

[startup+20.003 s]
Raw data (loadavg): 0.93 0.95 0.94 2/55 8602
Raw data (/proc/8602/stat): 8602 (pb2sat) R 8601 8602 4060 0 -1 0 59667 0 0 0 1858 133 0 0 25 0 1 0 21839804 183062528 36582 4294967295 134512640 135987407 3221224560 3221223136 134885472 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8602/statm): 44693 36582 364 364 0 44329 0
[pid=8602] vsize: 178772
Current children cumulated CPU time (s) 19.91
Current children cumulated vsize (Kb) 178772

[startup+30.0027 s]
Raw data (loadavg): 0.94 0.95 0.94 2/55 8602
Raw data (/proc/8602/stat): 8602 (pb2sat) R 8601 8602 4060 0 -1 0 89216 0 0 0 2786 201 0 0 25 0 1 0 21839804 277041152 56242 4294967295 134512640 135987407 3221224560 3221002124 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8602/statm): 67637 56242 364 364 0 67273 0
[pid=8602] vsize: 270548
Current children cumulated CPU time (s) 29.87
Current children cumulated vsize (Kb) 270548

[startup+40.0034 s]
Raw data (loadavg): 0.95 0.95 0.94 2/55 8602
Raw data (/proc/8602/stat): 8602 (pb2sat) R 8601 8602 4060 0 -1 0 112103 0 0 0 3735 251 0 0 25 0 1 0 21839804 351989760 66608 4294967295 134512640 135987407 3221224560 3221141408 134877631 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8602/statm): 85935 66608 364 364 0 85571 0
[pid=8602] vsize: 343740
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 343740

[startup+50.0042 s]
Raw data (loadavg): 0.96 0.95 0.94 2/55 8602
Raw data (/proc/8602/stat): 8602 (pb2sat) R 8601 8602 4060 0 -1 0 129402 0 0 0 4693 291 0 0 25 0 1 0 21839804 378363904 83680 4294967295 134512640 135987407 3221224560 3221207716 135477879 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8602/statm): 92374 83680 364 364 0 92010 0
[pid=8602] vsize: 369496
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 369496

[startup+60.0049 s]
Raw data (loadavg): 0.96 0.95 0.94 2/55 8602
Raw data (/proc/8602/stat): 8602 (pb2sat) R 8601 8602 4060 0 -1 0 170015 0 0 0 5607 373 0 0 25 0 1 0 21839804 516702208 104714 4294967295 134512640 135987407 3221224560 3221223248 134847148 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8602/statm): 126148 104714 364 364 0 125784 0
[pid=8602] vsize: 504592
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 504592

[startup+70.0056 s]
Raw data (loadavg): 0.97 0.95 0.94 2/55 8602
Raw data (/proc/8602/stat): 8602 (pb2sat) R 8601 8602 4060 0 -1 0 198066 0 0 0 6530 443 0 0 25 0 1 0 21839804 609611776 128389 4294967295 134512640 135987407 3221224560 3220986544 134866000 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8602/statm): 148831 128389 364 364 0 148467 0
[pid=8602] vsize: 595324
Current children cumulated CPU time (s) 69.73
Current children cumulated vsize (Kb) 595324

[startup+80.0063 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 8602
Raw data (/proc/8602/stat): 8602 (pb2sat) R 8601 8602 4060 0 -1 0 226516 0 0 0 7472 501 0 0 25 0 1 0 21839804 810942464 156644 4294967295 134512640 135987407 3221224560 3221202800 134887487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8602/statm): 197984 156644 364 364 0 197620 0
[pid=8602] vsize: 791936
Current children cumulated CPU time (s) 79.73
Current children cumulated vsize (Kb) 791936

[startup+90.007 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8604
Raw data (/proc/8602/stat): 8602 (pb2sat) R 8601 8602 4060 0 -1 0 239644 0 0 0 8439 533 0 0 25 0 1 0 21839804 713113600 144960 4294967295 134512640 135987407 3221224560 3221140048 134854934 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8602/statm): 174100 144960 364 364 0 173736 0
[pid=8602] vsize: 696400
Current children cumulated CPU time (s) 89.72
Current children cumulated vsize (Kb) 696400

[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8604
Raw data (/proc/8602/stat): 8602 (pb2sat) R 8601 8602 4060 0 -1 0 251338 0 0 0 9414 558 0 0 25 0 1 0 21839804 724602880 156417 4294967295 134512640 135987407 3221224560 3221101756 135499901 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8602/statm): 176905 156417 364 364 0 176541 0
[pid=8602] vsize: 707620
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 707620

[startup+110.008 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8604
Raw data (/proc/8602/stat): 8602 (pb2sat) R 8601 8602 4060 0 -1 0 266043 0 0 0 10381 588 0 0 25 0 1 0 21839804 765440000 170919 4294967295 134512640 135987407 3221224560 3221106172 135481565 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8602/statm): 186875 170919 364 364 0 186511 0
[pid=8602] vsize: 747500
Current children cumulated CPU time (s) 109.69
Current children cumulated vsize (Kb) 747500
One traced child (pid=8602) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 118.263
CPU time (s): 117.955
CPU user time (s): 111.665
CPU system time (s): 6.29004
CPU usage (%): 99.7392
Max. virtual memory (cumulated for all children) (Kb): 791936

Verifier Data

ERROR: no interpretation found !