Trace number 359749

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 2007-03-23UNSAT 29.1796 29.2046

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/359749-1176941500/instance-359749-1176941500.opb ......
29.07/29.19	c done parsing opb.
29.07/29.19	s UNSATISFIABLE
29.07/29.19	c Total Run Time					29.1556

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/359749-1176941500/instance-359749-1176941500.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node41/watcher-359749-1176941500 -o ROOT/results/node41/solver-359749-1176941500 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/359749-1176941500/PBS4 /tmp/evaluation/359749-1176941500/instance-359749-1176941500.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: 0.99 1.00 1.00 3/77 14841
/proc/meminfo: memFree=1805880/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=1324 CPUtime=0
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 144 0 0 0 0 0 0 0 18 0 1 0 142061927 1355776 126 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135057389 0 0 4096 0 0 0 0 17 0 0 0
/proc/14841/statm: 331 126 87 219 0 108 0

[startup+0.0960069 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 14841
/proc/meminfo: memFree=1805880/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=1604 CPUtime=0.09
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 251 0 0 0 9 0 0 0 18 0 1 0 142061927 1642496 233 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14841/statm: 401 233 92 219 0 178 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1604

[startup+0.101006 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 14841
/proc/meminfo: memFree=1805880/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=1604 CPUtime=0.09
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 254 0 0 0 9 0 0 0 18 0 1 0 142061927 1642496 236 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14841/statm: 401 236 92 219 0 178 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1604

[startup+0.301026 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 14841
/proc/meminfo: memFree=1805880/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=2568 CPUtime=0.29
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 372 0 0 0 29 0 0 0 19 0 1 0 142061927 2629632 354 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547367 0 0 4096 16384 0 0 0 17 1 0 0
/proc/14841/statm: 642 354 93 219 0 419 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2568

[startup+0.701063 s]
/proc/loadavg: 0.99 1.00 1.00 3/77 14841
/proc/meminfo: memFree=1805880/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=3916 CPUtime=0.68
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 593 0 0 0 68 0 0 0 23 0 1 0 142061927 4009984 526 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547300 0 0 4096 16384 0 0 0 17 1 0 0
/proc/14841/statm: 979 526 94 219 0 756 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 3916

[startup+1.50113 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 14842
/proc/meminfo: memFree=1803632/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=4564 CPUtime=1.48
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 1021 0 0 0 147 1 0 0 25 0 1 0 142061927 4673536 857 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134549626 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14841/statm: 1141 857 94 219 0 918 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 4564

[startup+3.10227 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 14842
/proc/meminfo: memFree=1801904/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=7020 CPUtime=3.08
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 1519 0 0 0 306 2 0 0 25 0 1 0 142061927 7188480 1355 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14841/statm: 1755 1355 94 219 0 1532 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 7020

[startup+6.30155 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 14842
/proc/meminfo: memFree=1798384/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=12732 CPUtime=6.28
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 2482 0 0 0 623 5 0 0 25 0 1 0 142061927 13037568 2125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14841/statm: 3183 2125 94 219 0 2960 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 12732

[startup+12.7011 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 14842
/proc/meminfo: memFree=1794488/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=13876 CPUtime=12.68
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 3299 0 0 0 1261 7 0 0 25 0 1 0 142061927 14209024 2942 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547089 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14841/statm: 3469 2942 94 219 0 3246 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 13876

[startup+25.5012 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 14842
/proc/meminfo: memFree=1791224/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=16916 CPUtime=25.47
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 4483 0 0 0 2536 11 0 0 25 0 1 0 142061927 17321984 3741 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547198 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14841/statm: 4229 3741 94 219 0 4006 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 16916

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

[startup+27.1014 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 14842
/proc/meminfo: memFree=1791096/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=17224 CPUtime=27.07
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 4543 0 0 0 2695 12 0 0 25 0 1 0 142061927 17637376 3801 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134549314 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14841/statm: 4306 3801 94 219 0 4083 0
Current children cumulated CPU time (s) 27.07
Current children cumulated vsize (KiB) 17224

[startup+27.9014 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 14842
/proc/meminfo: memFree=1790840/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=17224 CPUtime=27.87
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 4591 0 0 0 2775 12 0 0 25 0 1 0 142061927 17637376 3849 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547071 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14841/statm: 4306 3849 94 219 0 4083 0
Current children cumulated CPU time (s) 27.87
Current children cumulated vsize (KiB) 17224

[startup+28.7025 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 14842
/proc/meminfo: memFree=1790776/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=17360 CPUtime=28.67
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 4637 0 0 0 2855 12 0 0 25 0 1 0 142061927 17776640 3895 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547300 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14841/statm: 4340 3895 94 219 0 4117 0
Current children cumulated CPU time (s) 28.67
Current children cumulated vsize (KiB) 17360

[startup+29.1025 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 14842
/proc/meminfo: memFree=1790776/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=17360 CPUtime=29.07
/proc/14841/stat : 14841 (PBS4) R 14839 14841 14019 0 -1 4194304 4640 0 0 0 2895 12 0 0 25 0 1 0 142061927 17776640 3898 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134547316 0 0 4096 16384 0 0 0 17 0 0 0
/proc/14841/statm: 4340 3898 94 219 0 4117 0
Current children cumulated CPU time (s) 29.07
Current children cumulated vsize (KiB) 17360

[startup+29.2025 s]
/proc/loadavg: 0.99 1.00 1.00 2/78 14842
/proc/meminfo: memFree=1790776/2055920 swapFree=4113604/4192956
[pid=14841] ppid=14839 vsize=0 CPUtime=29.17
/proc/14841/stat : 14841 (PBS4) D 14839 14841 14019 0 -1 4194308 4656 0 0 0 2905 12 0 0 25 0 1 0 142061927 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 16384 18446744072100051646 0 0 17 0 0 0
/proc/14841/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 29.17
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 29.2046
CPU time (s): 29.1796
CPU user time (s): 29.0526
CPU system time (s): 0.12698
CPU usage (%): 99.9142
Max. virtual memory (cumulated for all children) (KiB): 17360

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.0526
system time used= 0.12698
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4656
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= 712

runsolver used 0.026995 second user time and 0.085986 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Thu Apr 19 00:11:40 UTC 2007

IDJOB= 359749
IDBENCH= 1318
IDSOLVER= 157
FILE ID= node41/359749-1176941500

PBS_JOBID= 4605713

Free space on /tmp= 66347 MiB

SOLVER NAME= PBS4 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= /tmp/evaluation/359749-1176941500/PBS4 /tmp/evaluation/359749-1176941500/instance-359749-1176941500.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node41/convwatcher-359749-1176941500 -o ROOT/results/node41/conversion-359749-1176941500 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/359749-1176941500/instance-359749-1176941500.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-359749-1176941500 -o ROOT/results/node41/solver-359749-1176941500 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/359749-1176941500/PBS4 /tmp/evaluation/359749-1176941500/instance-359749-1176941500.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  e3ac612b47921d8ce26a7ef2a453205c

RANDOM SEED= 300755582

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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		: 3000.232
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		: 3000.232
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:       1806288 kB
Buffers:         28616 kB
Cached:         142596 kB
SwapCached:       2324 kB
Active:          61576 kB
Inactive:       133016 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1806288 kB
SwapTotal:     4192956 kB
SwapFree:      4113604 kB
Dirty:            1340 kB
Writeback:           0 kB
Mapped:          31416 kB
Slab:            40296 kB
Committed_AS:  2550636 kB
PageTables:       2008 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= 66347 MiB

End job on node41 on Thu Apr 19 00:12:10 UTC 2007