Trace number 2668557

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 into four (or five) parts:
  1. 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 ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerobjective functionCPU timeWall clock time
PB/CT 0.1? (MO) 36.2755 36.2844

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-fit2p.opb
MD5SUM61513bc338a8ab1ef0a0cedf59bc2ac8
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 223035388
Optimality of the best value was proved NO
Number of variables293602
Total number of constraints10500
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 constraints10500
Minimum length of a constraint13
Maximum length of a constraint612
Number of terms in the objective function 246163
Biggest coefficient in the objective function 10737418240
Number of bits for the biggest coefficient in the objective function 34
Sum of the numbers in the objective function 43487073153772
Number of bits of the sum of numbers in the objective function 46
Biggest number in a constraint 31729070899200
Number of bits of the biggest number in a constraint 45
Biggest sum of numbers in a constraint 103505525327531
Number of bits of the biggest sum of numbers47
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
6.49/6.54	c constraints 10500/0 clauses 0/0 units 0
6.49/6.54	c vars 293602
6.49/6.55	c objective 246163 + 0
36.09/36.10	s UNKNOWN

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668557-1276545073/watcher-2668557-1276545073 -o /tmp/evaluation-result-2668557-1276545073/solver-2668557-1276545073 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668557-1276545073.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30256
/proc/meminfo: memFree=1803224/2059040 swapFree=4140108/4192956
[pid=30256] ppid=30254 vsize=2488 CPUtime=0
/proc/30256/stat : 30256 (pbct) R 30254 30256 29548 0 -1 4202496 307 0 0 0 0 0 0 0 25 0 1 0 28163221 2547712 229 1992294400 134512640 136485738 4289024976 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30256/statm: 622 230 151 482 0 138 0

[startup+0.0510621 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30256
/proc/meminfo: memFree=1803224/2059040 swapFree=4140108/4192956
[pid=30256] ppid=30254 vsize=4080 CPUtime=0.04
/proc/30256/stat : 30256 (pbct) R 30254 30256 29548 0 -1 4202496 749 0 0 0 4 0 0 0 25 0 1 0 28163221 4177920 524 1992294400 134512640 136485738 4289024976 18446744073709551615 135857055 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30256/statm: 1020 524 151 482 0 536 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4080

[startup+0.101067 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30256
/proc/meminfo: memFree=1803224/2059040 swapFree=4140108/4192956
[pid=30256] ppid=30254 vsize=5936 CPUtime=0.09
/proc/30256/stat : 30256 (pbct) R 30254 30256 29548 0 -1 4202496 1328 0 0 0 9 0 0 0 25 0 1 0 28163221 6078464 877 1992294400 134512640 136485738 4289024976 18446744073709551615 135172005 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30256/statm: 1484 878 151 482 0 1000 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5936

[startup+0.301088 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30256
/proc/meminfo: memFree=1803224/2059040 swapFree=4140108/4192956
[pid=30256] ppid=30254 vsize=9960 CPUtime=0.29
/proc/30256/stat : 30256 (pbct) R 30254 30256 29548 0 -1 4202496 2940 0 0 0 28 1 0 0 25 0 1 0 28163221 10199040 2039 1992294400 134512640 136485738 4289024976 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30256/statm: 2490 2039 151 482 0 2006 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9960

[startup+0.701121 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30256
/proc/meminfo: memFree=1803224/2059040 swapFree=4140108/4192956
[pid=30256] ppid=30254 vsize=18016 CPUtime=0.69
/proc/30256/stat : 30256 (pbct) R 30254 30256 29548 0 -1 4202496 5946 0 0 0 66 3 0 0 25 0 1 0 28163221 18448384 4018 1992294400 134512640 136485738 4289024976 18446744073709551615 135848204 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30256/statm: 4504 4018 152 482 0 4020 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 18016

[startup+1.50119 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 30257
/proc/meminfo: memFree=1786600/2059040 swapFree=4140108/4192956
[pid=30256] ppid=30254 vsize=28212 CPUtime=1.49
/proc/30256/stat : 30256 (pbct) R 30254 30256 29548 0 -1 4202496 8488 0 0 0 145 4 0 0 25 0 1 0 28163221 28889088 6560 1992294400 134512640 136485738 4289024976 18446744073709551615 135559949 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30256/statm: 7053 6560 156 482 0 6569 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 28212

[startup+3.10034 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 30257
/proc/meminfo: memFree=1764776/2059040 swapFree=4140108/4192956
[pid=30256] ppid=30254 vsize=62220 CPUtime=3.09
/proc/30256/stat : 30256 (pbct) R 30254 30256 29548 0 -1 4202496 16596 0 0 0 301 8 0 0 25 0 1 0 28163221 63713280 14668 1992294400 134512640 136485738 4289024976 18446744073709551615 134519907 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30256/statm: 15555 14668 156 482 0 15071 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 62220

[startup+6.30062 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 30257
/proc/meminfo: memFree=1698560/2059040 swapFree=4140108/4192956
[pid=30256] ppid=30254 vsize=129548 CPUtime=6.29
/proc/30256/stat : 30256 (pbct) R 30254 30256 29548 0 -1 4202496 32676 0 0 0 614 15 0 0 25 0 1 0 28163221 132657152 30748 1992294400 134512640 136485738 4289024976 18446744073709551615 135565590 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30256/statm: 32387 30748 156 482 0 31903 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 129548

[startup+12.7012 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 30259
/proc/meminfo: memFree=1235792/2059040 swapFree=4140108/4192956
[pid=30256] ppid=30254 vsize=621072 CPUtime=12.69
/proc/30256/stat : 30256 (pbct) R 30254 30256 29548 0 -1 4202496 160873 0 0 0 1192 77 0 0 25 0 1 0 28163221 635977728 153106 1992294400 134512640 136485738 4289024976 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30256/statm: 155268 153107 197 482 0 154784 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 621072

[startup+25.5014 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 30259
/proc/meminfo: memFree=536432/2059040 swapFree=4140108/4192956
[pid=30256] ppid=30254 vsize=1312540 CPUtime=25.48
/proc/30256/stat : 30256 (pbct) R 30254 30256 29548 0 -1 4202496 345819 0 0 0 2392 156 0 0 25 0 1 0 28163221 1344040960 319936 1992294400 134512640 136485738 4289024976 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30256/statm: 328135 319936 197 482 0 327651 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1312540



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+36.1013 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 30259
/proc/meminfo: memFree=24064/2059040 swapFree=4140108/4192956
[pid=30256] ppid=30254 vsize=1845924 CPUtime=36.09
/proc/30256/stat : 30256 (pbct) R 30254 30256 29548 0 -1 4202496 490233 0 0 0 3395 214 0 0 25 0 1 0 28163221 1890226176 444123 1992294400 134512640 136485738 4289024976 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30256/statm: 461481 444124 197 482 0 460997 0
Current children cumulated CPU time (s) 36.09
Current children cumulated vsize (KiB) 1845924

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Solver just ended. Dumping a history of the last processes samples

[startup+36.2093 s]
/proc/loadavg: 1.00 1.00 1.00 2/109 30260
/proc/meminfo: memFree=1060448/2059040 swapFree=4140108/4192956
[pid=30256] ppid=30254 vsize=0 CPUtime=36.2
/proc/30256/stat : 30256 (pbct) R 30254 30256 29548 0 -1 4194308 490240 0 0 0 3395 225 0 0 25 0 1 0 28163221 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/30256/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 36.2
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 36.2844
CPU time (s): 36.2755
CPU user time (s): 33.9518
CPU system time (s): 2.32365
CPU usage (%): 99.9754
Max. virtual memory (cumulated for all children) (KiB): 1845924

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 33.9518
system time used= 2.32365
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 490240
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 29

runsolver used 0.058991 second user time and 0.197969 second system time

The end

Launcher Data 

Begin job on node025 at 2010-06-14 21:51:15
IDJOB=2668557
IDBENCH=2389
IDSOLVER=1170
FILE ID=node025/2668557-1276545073
PBS_JOBID= 11173465
Free space on /tmp= 62548 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-fit2p.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668557-1276545073/watcher-2668557-1276545073 -o /tmp/evaluation-result-2668557-1276545073/solver-2668557-1276545073 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668557-1276545073.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 61513bc338a8ab1ef0a0cedf59bc2ac8
RANDOM SEED=422301971

node025.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.242
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.48
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.242
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1803752 kB
Buffers:         35948 kB
Cached:         129472 kB
SwapCached:       6584 kB
Active:         107188 kB
Inactive:        71760 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1803752 kB
SwapTotal:     4192956 kB
SwapFree:      4140108 kB
Dirty:           26976 kB
Writeback:           0 kB
AnonPages:       11812 kB
Mapped:          13020 kB
Slab:            54492 kB
PageTables:       4076 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181916 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62544 MiB
End job on node025 at 2010-06-14 21:51:53