Trace number 2682634

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 NameAnswerCPU timeWall clock time
PB/CT 0.1 fixed? (MO) 27.8748 27.8844

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/liu/
dbst/normalized-dbst_v40_e600_d20_mw10_6.opb.PB06.opb
MD5SUMf5d8cf0048d52cf223a3574d281ac8f8
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark2.89356
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables2800
Total number of constraints990001
Number of constraints which are clauses986760
Number of constraints which are cardinality constraints (but not clauses)81
Number of constraints which are nor clauses,nor cardinality constraints3160
Minimum length of a constraint2
Maximum length of a constraint1200
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 350
Number of bits of the biggest number in a constraint 9
Biggest sum of numbers in a constraint 1239
Number of bits of the biggest sum of numbers11
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
12.09/12.12	c constraints 3241/0 clauses 986760/0 units 0
12.09/12.12	c vars 2800
27.69/27.70	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-2682634-1277476168/watcher-2682634-1277476168 -o /tmp/evaluation-result-2682634-1277476168/solver-2682634-1277476168 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682634-1277476168.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: 0.95 0.81 0.41 3/106 22152
/proc/meminfo: memFree=1831812/2059040 swapFree=4140004/4192956
[pid=22152] ppid=22150 vsize=2136 CPUtime=0
/proc/22152/stat : 22152 (pbct) R 22150 22152 21868 0 -1 4202496 247 0 0 0 0 0 0 0 18 0 1 0 121273273 2187264 166 1992294400 134512640 136421960 4291624240 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22152/statm: 534 166 144 467 0 65 0

[startup+0.0667979 s]
/proc/loadavg: 0.95 0.81 0.41 3/106 22152
/proc/meminfo: memFree=1831812/2059040 swapFree=4140004/4192956
[pid=22152] ppid=22150 vsize=2268 CPUtime=0.06
/proc/22152/stat : 22152 (pbct) R 22150 22152 21868 0 -1 4202496 293 0 0 0 6 0 0 0 20 0 1 0 121273273 2322432 212 1992294400 134512640 136421960 4291624240 18446744073709551615 135641990 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22152/statm: 567 212 144 467 0 98 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2268

[startup+0.100804 s]
/proc/loadavg: 0.95 0.81 0.41 3/106 22152
/proc/meminfo: memFree=1831812/2059040 swapFree=4140004/4192956
[pid=22152] ppid=22150 vsize=2400 CPUtime=0.1
/proc/22152/stat : 22152 (pbct) R 22150 22152 21868 0 -1 4202496 321 0 0 0 10 0 0 0 20 0 1 0 121273273 2457600 240 1992294400 134512640 136421960 4291624240 18446744073709551615 135526686 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22152/statm: 600 240 144 467 0 131 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2400

[startup+0.300841 s]
/proc/loadavg: 0.95 0.81 0.41 3/106 22152
/proc/meminfo: memFree=1831812/2059040 swapFree=4140004/4192956
[pid=22152] ppid=22150 vsize=3060 CPUtime=0.3
/proc/22152/stat : 22152 (pbct) R 22150 22152 21868 0 -1 4202496 472 0 0 0 30 0 0 0 20 0 1 0 121273273 3133440 391 1992294400 134512640 136421960 4291624240 18446744073709551615 135652497 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22152/statm: 765 391 144 467 0 296 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 3060

[startup+0.700916 s]
/proc/loadavg: 0.95 0.81 0.41 3/106 22152
/proc/meminfo: memFree=1831812/2059040 swapFree=4140004/4192956
[pid=22152] ppid=22150 vsize=4244 CPUtime=0.69
/proc/22152/stat : 22152 (pbct) R 22150 22152 21868 0 -1 4202496 811 0 0 0 69 0 0 0 21 0 1 0 121273273 4345856 697 1992294400 134512640 136421960 4291624240 18446744073709551615 135810822 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22152/statm: 1061 697 144 467 0 592 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4244

[startup+1.50106 s]
/proc/loadavg: 0.95 0.81 0.41 2/107 22153
/proc/meminfo: memFree=1828580/2059040 swapFree=4140004/4192956
[pid=22152] ppid=22150 vsize=6612 CPUtime=1.49
/proc/22152/stat : 22152 (pbct) R 22150 22152 21868 0 -1 4202496 1485 0 0 0 149 0 0 0 23 0 1 0 121273273 6770688 1306 1992294400 134512640 136421960 4291624240 18446744073709551615 135160324 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22152/statm: 1653 1306 144 467 0 1184 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6612

[startup+3.10136 s]
/proc/loadavg: 0.95 0.81 0.41 2/107 22153
/proc/meminfo: memFree=1824860/2059040 swapFree=4140004/4192956
[pid=22152] ppid=22150 vsize=12504 CPUtime=3.09
/proc/22152/stat : 22152 (pbct) R 22150 22152 21868 0 -1 4202496 3089 0 0 0 308 1 0 0 25 0 1 0 121273273 12804096 2524 1992294400 134512640 136421960 4291624240 18446744073709551615 135529021 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22152/statm: 3126 2524 144 467 0 2657 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 12504

[startup+6.30096 s]
/proc/loadavg: 0.95 0.81 0.42 2/107 22153
/proc/meminfo: memFree=1814568/2059040 swapFree=4140004/4192956
[pid=22152] ppid=22150 vsize=23264 CPUtime=6.29
/proc/22152/stat : 22152 (pbct) R 22150 22152 21868 0 -1 4202496 6029 0 0 0 625 4 0 0 25 0 1 0 121273273 23822336 4951 1992294400 134512640 136421960 4291624240 18446744073709551615 135818409 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22152/statm: 5816 4951 144 467 0 5347 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 23264

[startup+12.7012 s]
/proc/loadavg: 0.96 0.81 0.42 2/107 22153
/proc/meminfo: memFree=1786048/2059040 swapFree=4140004/4192956
[pid=22152] ppid=22150 vsize=92356 CPUtime=12.69
/proc/22152/stat : 22152 (pbct) R 22150 22152 21868 0 -1 4202496 24541 0 0 0 1257 12 0 0 25 0 1 0 121273273 94572544 22341 1992294400 134512640 136421960 4291624240 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22152/statm: 23089 22341 187 467 0 22620 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 92356

[startup+25.5005 s]
/proc/loadavg: 0.97 0.82 0.43 2/107 22155
/proc/meminfo: memFree=997160/2059040 swapFree=4140004/4192956
[pid=22152] ppid=22150 vsize=866972 CPUtime=25.48
/proc/22152/stat : 22152 (pbct) R 22150 22152 21868 0 -1 4202496 245884 0 0 0 2443 105 0 0 25 0 1 0 121273273 887779328 212990 1992294400 134512640 136421960 4291624240 18446744073709551615 135518851 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22152/statm: 216743 212991 193 467 0 216274 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 866972



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+27.701 s]
/proc/loadavg: 0.97 0.82 0.43 2/107 22155
/proc/meminfo: memFree=27976/2059040 swapFree=4140004/4192956
[pid=22152] ppid=22150 vsize=1867728 CPUtime=27.69
/proc/22152/stat : 22152 (pbct) R 22150 22152 21868 0 -1 4202496 500238 0 0 0 2575 194 0 0 25 0 1 0 121273273 1912553472 450956 1992294400 134512640 136421960 4291624240 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22152/statm: 466932 450961 194 467 0 466463 0
Current children cumulated CPU time (s) 27.69
Current children cumulated vsize (KiB) 1867728

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

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

[startup+27.809 s]
/proc/loadavg: 0.97 0.82 0.43 2/107 22155
/proc/meminfo: memFree=27976/2059040 swapFree=4140004/4192956
[pid=22152] ppid=22150 vsize=0 CPUtime=27.79
/proc/22152/stat : 22152 (pbct) R 22150 22152 21868 0 -1 4194308 500269 0 0 0 2575 204 0 0 25 0 1 0 121273273 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/22152/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 27.79
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 27.8844
CPU time (s): 27.8748
CPU user time (s): 25.7561
CPU system time (s): 2.11868
CPU usage (%): 99.9655
Max. virtual memory (cumulated for all children) (KiB): 1867728

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 25.7561
system time used= 2.11868
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 500269
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= 1
involuntary context switches= 365

runsolver used 0.043993 second user time and 0.149977 second system time

The end

Launcher Data 

Begin job on node019 at 2010-06-25 16:29:30
IDJOB=2682634
IDBENCH=1386
IDSOLVER=1192
FILE ID=node019/2682634-1277476168
PBS_JOBID= 11190518
Free space on /tmp= 62240 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/liu/dbst/normalized-dbst_v40_e600_d20_mw10_6.opb.PB06.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682634-1277476168/watcher-2682634-1277476168 -o /tmp/evaluation-result-2682634-1277476168/solver-2682634-1277476168 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682634-1277476168.opb

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

MD5SUM BENCH= f5d8cf0048d52cf223a3574d281ac8f8
RANDOM SEED=1306549706

node019.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		: 3000.264
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	: 6000.52
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		: 3000.264
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	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1832340 kB
Buffers:         24908 kB
Cached:         116088 kB
SwapCached:       5532 kB
Active:          54972 kB
Inactive:        99032 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1832340 kB
SwapTotal:     4192956 kB
SwapFree:      4140004 kB
Dirty:           36176 kB
Writeback:           0 kB
AnonPages:       11636 kB
Mapped:          11888 kB
Slab:            50712 kB
PageTables:       4164 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182736 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= 62236 MiB
End job on node019 at 2010-06-25 16:29:59