Trace number 458241

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, and are wall clock time (not CPU 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
PBS4_v2 2007-03-23UNSAT 30.8383 30.8489

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900552423.opb
MD5SUMe3ac612b47921d8ce26a7ef2a453205c
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark1.40279
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables231
Total number of constraints2707
Number of constraints which are clauses2684
Number of constraints which are cardinality constraints (but not clauses)22
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint110
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 25
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 779
Number of bits of the biggest sum of numbers10
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/458241-1178620573/instance-458241-1178620573.opb ......
30.78/30.84	c done parsing opb.
30.78/30.84	s UNSATISFIABLE
30.78/30.84	c Total Run Time					30.8113

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458241-1178620573/instance-458241-1178620573.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node25/watcher-458241-1178620573 -o ROOT/results/node25/solver-458241-1178620573 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458241-1178620573/instance-458241-1178620573.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): 3600 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11107
/proc/meminfo: memFree=1589080/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=1324 CPUtime=0
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 309974400 1355776 120 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135023707 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 331 120 86 219 0 108 0

[startup+0.0823621 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11107
/proc/meminfo: memFree=1589080/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=1604 CPUtime=0.08
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 237 0 0 0 8 0 0 0 18 0 1 0 309974400 1642496 219 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134588758 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 401 219 90 219 0 178 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1604

[startup+0.101364 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11107
/proc/meminfo: memFree=1589080/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=1604 CPUtime=0.09
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 248 0 0 0 9 0 0 0 18 0 1 0 309974400 1642496 230 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 401 230 90 219 0 178 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1604

[startup+0.301398 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11107
/proc/meminfo: memFree=1589080/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=2568 CPUtime=0.29
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 367 0 0 0 29 0 0 0 19 0 1 0 309974400 2629632 349 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 642 349 90 219 0 419 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2568

[startup+0.701466 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 11107
/proc/meminfo: memFree=1589080/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=3916 CPUtime=0.69
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 589 0 0 0 69 0 0 0 22 0 1 0 309974400 4009984 522 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 979 522 90 219 0 756 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3916

[startup+1.5016 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11108
/proc/meminfo: memFree=1586768/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=4564 CPUtime=1.49
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 1008 0 0 0 148 1 0 0 25 0 1 0 309974400 4673536 844 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 1141 845 90 219 0 918 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4564

[startup+3.10188 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11108
/proc/meminfo: memFree=1585104/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=7020 CPUtime=3.1
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 1478 0 0 0 307 3 0 0 25 0 1 0 309974400 7188480 1314 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 1755 1314 90 219 0 1532 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 7020

[startup+6.30142 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11108
/proc/meminfo: memFree=1581712/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=12592 CPUtime=6.29
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 2409 0 0 0 624 5 0 0 25 0 1 0 309974400 12894208 2052 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 3148 2052 90 219 0 2925 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 12592

[startup+12.7015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11108
/proc/meminfo: memFree=1577880/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=13732 CPUtime=12.69
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 3252 0 0 0 1261 8 0 0 25 0 1 0 309974400 14061568 2895 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134547219 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 3433 2895 90 219 0 3210 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13732

[startup+25.5017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11108
/proc/meminfo: memFree=1574424/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=16916 CPUtime=25.48
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 4431 0 0 0 2537 11 0 0 25 0 1 0 309974400 17321984 3689 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544667 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 4229 3689 90 219 0 4006 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 16916

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

[startup+28.7013 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11108
/proc/meminfo: memFree=1573976/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=17224 CPUtime=28.68
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 4570 0 0 0 2856 12 0 0 25 0 1 0 309974400 17637376 3828 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 4306 3828 90 219 0 4083 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 17224

[startup+29.5014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11108
/proc/meminfo: memFree=1573976/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=17224 CPUtime=29.48
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 4587 0 0 0 2936 12 0 0 25 0 1 0 309974400 17637376 3845 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 4306 3845 90 219 0 4083 0
Current children cumulated CPU time (s) 29.48
Current children cumulated vsize (KiB) 17224

[startup+30.3015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11108
/proc/meminfo: memFree=1573720/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=17360 CPUtime=30.28
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 4632 0 0 0 3016 12 0 0 25 0 1 0 309974400 17776640 3890 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 4340 3890 90 219 0 4117 0
Current children cumulated CPU time (s) 30.28
Current children cumulated vsize (KiB) 17360

[startup+30.7016 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11108
/proc/meminfo: memFree=1573528/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=17360 CPUtime=30.68
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 4636 0 0 0 3056 12 0 0 25 0 1 0 309974400 17776640 3894 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 4340 3894 90 219 0 4117 0
Current children cumulated CPU time (s) 30.68
Current children cumulated vsize (KiB) 17360

[startup+30.8056 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 11108
/proc/meminfo: memFree=1573528/2055920 swapFree=4183084/4192956
[pid=11107] ppid=11105 vsize=17360 CPUtime=30.78
/proc/11107/stat : 11107 (PBS4_SAT07v2) R 11105 11107 10150 0 -1 4194304 4637 0 0 0 3066 12 0 0 25 0 1 0 309974400 17776640 3895 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134550311 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11107/statm: 4340 3895 90 219 0 4117 0
Current children cumulated CPU time (s) 30.78
Current children cumulated vsize (KiB) 17360

Child status: 0
Real time (s): 30.8489
CPU time (s): 30.8383
CPU user time (s): 30.7073
CPU system time (s): 0.13098
CPU usage (%): 99.9657
Max. virtual memory (cumulated for all children) (KiB): 17360

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 30.7073
system time used= 0.13098
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4654
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= 8
involuntary context switches= 47

runsolver used 0.022996 second user time and 0.070989 second system time

The end

Launcher Data (download as text)

Begin job on node25 on Tue May  8 10:36:13 UTC 2007

IDJOB= 458241
IDBENCH= 1318
IDSOLVER= 200
FILE ID= node25/458241-1178620573

PBS_JOBID= 5218257

Free space on /tmp= 66562 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900552423.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458241-1178620573/instance-458241-1178620573.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node25/convwatcher-458241-1178620573 -o ROOT/results/node25/conversion-458241-1178620573 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458241-1178620573/instance-458241-1178620573.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-458241-1178620573 -o ROOT/results/node25/solver-458241-1178620573 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458241-1178620573/instance-458241-1178620573.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  e3ac612b47921d8ce26a7ef2a453205c

RANDOM SEED= 173049229

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node25.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.261
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
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		: 3000.261
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1589488 kB
Buffers:         33904 kB
Cached:         313148 kB
SwapCached:       3896 kB
Active:          77280 kB
Inactive:       279752 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1589488 kB
SwapTotal:     4192956 kB
SwapFree:      4183084 kB
Dirty:            2376 kB
Writeback:           0 kB
Mapped:          15992 kB
Slab:            95472 kB
Committed_AS:  8379748 kB
PageTables:       1472 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66562 MiB

End job on node25 on Tue May  8 10:36:44 UTC 2007