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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-scagr7.opb
MD5SUMba8d9e2ddb6c7fbe5dbad283bafaa87d
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 2660
Biggest coefficient in the objective function 34707865600
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 1276562467950
Number of bits of the sum of numbers in the objective function 41
Biggest number in a constraint 34707865600
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 1276562467950
Number of bits of the biggest sum of numbers41
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.147977
Number of variables2800
Total number of constraints129
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 constraints129
Minimum length of a constraint20
Maximum length of a constraint200

Trace number 10296

Launcher Data

LAUNCH ON wulflinc11 THE 2005-09-23 17:47:46 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9046 boxname=wulflinc11 idbench=842 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  ba8d9e2ddb6c7fbe5dbad283bafaa87d  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-scagr7.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-scagr7.opb
IDLAUNCH: 9046
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.045
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		: 451.045
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:        907364 kB
Buffers:          9456 kB
Cached:          92748 kB
SwapCached:          0 kB
Active:          56320 kB
Inactive:        55452 kB
HighTotal:      131008 kB
HighFree:        35952 kB
LowTotal:       903652 kB
LowFree:        871412 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9984 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:49:26 (client local time) WITH STATUS 0 IN 96.9963 SECONDS
stats: 9046 7 96.9963 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/10776/stat): 10776 (pb2sat) R 10775 10776 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22105830 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10776/statm): 373 2 364 364 0 9 0
[pid=10776] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-scagr7.opb

[startup+10.0022 s]
Raw data (loadavg): 0.92 0.96 0.93 2/55 10776
Raw data (/proc/10776/stat): 10776 (pb2sat) R 10775 10776 4060 0 -1 0 30863 0 0 0 928 68 0 0 25 0 1 0 22105830 93736960 19711 4294967295 134512640 135987407 3221224560 3221184608 134878060 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10776/statm): 22885 19711 364 364 0 22521 0
[pid=10776] vsize: 91540
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 91540

[startup+20.003 s]
Raw data (loadavg): 0.94 0.96 0.93 2/55 10776
Raw data (/proc/10776/stat): 10776 (pb2sat) R 10775 10776 4060 0 -1 0 62712 0 0 0 1860 134 0 0 25 0 1 0 22105830 190373888 40332 4294967295 134512640 135987407 3221224560 3221212916 135477853 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10776/statm): 46478 40332 364 364 0 46114 0
[pid=10776] vsize: 185912
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 185912

[startup+30.0038 s]
Raw data (loadavg): 0.95 0.96 0.93 2/55 10776
Raw data (/proc/10776/stat): 10776 (pb2sat) R 10775 10776 4060 0 -1 0 101250 0 0 0 2782 210 0 0 25 0 1 0 22105830 339582976 56674 4294967295 134512640 135987407 3221224560 3221181184 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10776/statm): 82906 56674 364 364 0 82542 0
[pid=10776] vsize: 331624
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 331624

[startup+40.0046 s]
Raw data (loadavg): 0.95 0.96 0.93 2/55 10776
Raw data (/proc/10776/stat): 10776 (pb2sat) R 10775 10776 4060 0 -1 0 115426 0 0 0 3753 238 0 0 25 0 1 0 22105830 345800704 70623 4294967295 134512640 135987407 3221224560 3221221412 135479922 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10776/statm): 84424 70623 364 364 0 84060 0
[pid=10776] vsize: 337696
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 337696

[startup+50.0054 s]
Raw data (loadavg): 0.96 0.96 0.93 2/55 10776
Raw data (/proc/10776/stat): 10776 (pb2sat) R 10775 10776 4060 0 -1 0 156427 0 0 0 4668 320 0 0 25 0 1 0 22105830 539910144 110419 4294967295 134512640 135987407 3221224560 3221159060 134893008 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10776/statm): 131814 110419 364 364 0 131450 0
[pid=10776] vsize: 527256
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 527256

[startup+60.0062 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 10776
Raw data (/proc/10776/stat): 10776 (pb2sat) R 10775 10776 4060 0 -1 0 193942 0 0 0 5590 398 0 0 25 0 1 0 22105830 576163840 104720 4294967295 134512640 135987407 3221224560 3221192060 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10776/statm): 140665 104720 364 364 0 140301 0
[pid=10776] vsize: 562660
Current children cumulated CPU time (s) 59.88
Current children cumulated vsize (Kb) 562660

[startup+70.007 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 10776
Raw data (/proc/10776/stat): 10776 (pb2sat) R 10775 10776 4060 0 -1 0 206840 0 0 0 6563 425 0 0 25 0 1 0 22105830 615665664 117413 4294967295 134512640 135987407 3221224560 3221169552 134639045 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10776/statm): 150309 117413 364 364 0 149945 0
[pid=10776] vsize: 601236
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 601236

[startup+80.0078 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 10776
Raw data (/proc/10776/stat): 10776 (pb2sat) R 10775 10776 4060 0 -1 0 221454 0 0 0 7534 453 0 0 25 0 1 0 22105830 618639360 131777 4294967295 134512640 135987407 3221224560 3221198416 134878029 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10776/statm): 151035 131777 364 364 0 150671 0
[pid=10776] vsize: 604140
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 604140

[startup+90.0075 s]
Raw data (loadavg): 0.98 0.97 0.93 2/55 10776
Raw data (/proc/10776/stat): 10776 (pb2sat) R 10775 10776 4060 0 -1 0 232836 0 0 0 8508 479 0 0 25 0 1 0 22105830 672620544 142970 4294967295 134512640 135987407 3221224560 3221165584 134637848 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10776/statm): 164214 142970 364 364 0 163850 0
[pid=10776] vsize: 656856
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 656856



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+96.8193 s]
Raw data (loadavg): 0.98 0.97 0.93 1/55 10776
Raw data (/proc/10776/stat): 10776 (pb2sat) T 10775 10776 4060 0 -1 0 242780 0 0 0 9167 500 0 0 25 0 1 0 22105830 958513152 152737 4294967295 134512640 135987407 3221224560 3221173648 135544035 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/10776/statm): 234012 152737 364 364 0 233648 0
[pid=10776] vsize: 936048
Current children cumulated CPU time (s) 96.67
Current children cumulated vsize (Kb) 936048

Sending SIGTERM to -10776
Sleeping 2 seconds
Sending SIGKILL to -10776
One traced child (pid=10776) 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): 99.1355
CPU time (s): 96.9963
CPU user time (s): 91.6771
CPU system time (s): 5.31919
CPU usage (%): 97.8421
Max. virtual memory (cumulated for all children) (Kb): 936048

Verifier Data

ERROR: no interpretation found !