Trace number 458532

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 NameAnswerObjective functionCPU timeWall clock time
PBS4_v2 2007-03-23UNSAT 24.0473 24.0537

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/
ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-e226.opb
MD5SUMba85c504e75c36f184b41f40c4eddd0f
Bench CategoryOPT-SMALLINT (optimisation, small integers)
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 benchmark9.71252
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables8460
Total number of constraints216
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 constraints216
Minimum length of a constraint30
Maximum length of a constraint3210
Number of terms in the objective function 5160
Biggest coefficient in the objective function 17864
Number of bits for the biggest coefficient in the objective function 15
Sum of the numbers in the objective function 528383
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262145
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 528383
Number of bits of the biggest sum of numbers20
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/458532-1178634080/instance-458532-1178634080.opb ......
23.98/24.05	c done parsing opb.
23.98/24.05	s UNSATISFIABLE
23.98/24.05	c Total Run Time					22.9555

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458532-1178634080/instance-458532-1178634080.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/node7/watcher-458532-1178634080 -o ROOT/results/node7/solver-458532-1178634080 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458532-1178634080/instance-458532-1178634080.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: 0.92 0.98 0.99 3/77 31522
/proc/meminfo: memFree=1621160/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=2416 CPUtime=0
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 408 0 0 0 0 0 0 0 18 0 1 0 339445688 2473984 390 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134804492 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 604 390 84 219 0 381 0

[startup+0.026299 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 31522
/proc/meminfo: memFree=1621160/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=2828 CPUtime=0.02
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 486 0 0 0 2 0 0 0 18 0 1 0 339445688 2895872 468 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134586483 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 707 468 86 219 0 484 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2828

[startup+0.101307 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 31522
/proc/meminfo: memFree=1621160/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=2828 CPUtime=0.09
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 507 0 0 0 9 0 0 0 18 0 1 0 339445688 2895872 489 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134587081 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 707 489 86 219 0 484 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2828

[startup+0.301326 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 31522
/proc/meminfo: memFree=1621160/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=3520 CPUtime=0.29
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 653 0 0 0 29 0 0 0 19 0 1 0 339445688 3604480 635 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134587791 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 880 635 86 219 0 657 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3520

[startup+0.701369 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 31522
/proc/meminfo: memFree=1621160/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=4188 CPUtime=0.69
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 831 0 0 0 69 0 0 0 22 0 1 0 339445688 4288512 813 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134586474 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 1047 813 86 219 0 824 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4188

[startup+1.50145 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 31523
/proc/meminfo: memFree=1616800/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=7200 CPUtime=1.49
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 1590 0 0 0 149 0 0 0 25 0 1 0 339445688 7372800 1373 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134545669 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 1800 1373 90 219 0 1577 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7200

[startup+3.10162 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 31523
/proc/meminfo: memFree=1615776/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=7200 CPUtime=3.09
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 1594 0 0 0 309 0 0 0 25 0 1 0 339445688 7372800 1377 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134545659 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 1800 1377 90 219 0 1577 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7200

[startup+6.30196 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 31523
/proc/meminfo: memFree=1615712/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=7200 CPUtime=6.29
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 1596 0 0 0 629 0 0 0 25 0 1 0 339445688 7372800 1379 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134545681 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 1800 1379 90 219 0 1577 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7200

[startup+12.7016 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 31523
/proc/meminfo: memFree=1615648/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=7200 CPUtime=12.69
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 1619 0 0 0 1269 0 0 0 25 0 1 0 339445688 7372800 1402 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134545646 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 1800 1402 90 219 0 1577 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 7200

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

[startup+19.1013 s]
/proc/loadavg: 1.02 1.00 1.00 2/78 31523
/proc/meminfo: memFree=1615520/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=7200 CPUtime=19.08
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 1652 0 0 0 1908 0 0 0 25 0 1 0 339445688 7372800 1435 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134545606 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 1800 1435 90 219 0 1577 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 7200

[startup+22.3016 s]
/proc/loadavg: 1.02 1.00 1.00 2/78 31523
/proc/meminfo: memFree=1615520/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=7176 CPUtime=22.28
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 1665 0 0 0 2228 0 0 0 25 0 1 0 339445688 7348224 1386 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134546122 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 1794 1386 90 219 0 1571 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 7176

[startup+23.1057 s]
/proc/loadavg: 1.02 1.00 1.00 2/78 31523
/proc/meminfo: memFree=1615520/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=7176 CPUtime=23.09
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 1669 0 0 0 2309 0 0 0 25 0 1 0 339445688 7348224 1390 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134545620 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 1794 1390 90 219 0 1571 0
Current children cumulated CPU time (s) 23.09
Current children cumulated vsize (KiB) 7176

[startup+23.5018 s]
/proc/loadavg: 1.02 1.00 1.00 2/78 31523
/proc/meminfo: memFree=1615520/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=7176 CPUtime=23.48
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 1671 0 0 0 2348 0 0 0 25 0 1 0 339445688 7348224 1392 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134545659 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 1794 1392 90 219 0 1571 0
Current children cumulated CPU time (s) 23.48
Current children cumulated vsize (KiB) 7176

[startup+23.9018 s]
/proc/loadavg: 1.02 1.00 1.00 2/78 31523
/proc/meminfo: memFree=1615520/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=7176 CPUtime=23.88
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 1673 0 0 0 2388 0 0 0 25 0 1 0 339445688 7348224 1394 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134545667 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 1794 1394 90 219 0 1571 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 7176

[startup+24.0018 s]
/proc/loadavg: 1.02 1.00 1.00 2/78 31523
/proc/meminfo: memFree=1615520/2055920 swapFree=4157048/4192956
[pid=31522] ppid=31520 vsize=7176 CPUtime=23.98
/proc/31522/stat : 31522 (PBS4_SAT07v2) R 31520 31522 30663 0 -1 4194304 1673 0 0 0 2398 0 0 0 25 0 1 0 339445688 7348224 1394 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134546122 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31522/statm: 1794 1394 90 219 0 1571 0
Current children cumulated CPU time (s) 23.98
Current children cumulated vsize (KiB) 7176

Child status: 0
Real time (s): 24.0537
CPU time (s): 24.0473
CPU user time (s): 24.0383
CPU system time (s): 0.008998
CPU usage (%): 99.9737
Max. virtual memory (cumulated for all children) (KiB): 7200

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.0383
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1690
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= 14

runsolver used 0.021996 second user time and 0.06099 second system time

The end

Launcher Data (download as text)

Begin job on node7 on Tue May  8 14:21:21 UTC 2007

IDJOB= 458532
IDBENCH= 1646
IDSOLVER= 200
FILE ID= node7/458532-1178634080

PBS_JOBID= 5217801

Free space on /tmp= 66554 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-e226.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458532-1178634080/instance-458532-1178634080.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node7/convwatcher-458532-1178634080 -o ROOT/results/node7/conversion-458532-1178634080 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458532-1178634080/instance-458532-1178634080.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node7/watcher-458532-1178634080 -o ROOT/results/node7/solver-458532-1178634080 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458532-1178634080/instance-458532-1178634080.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  ba85c504e75c36f184b41f40c4eddd0f

RANDOM SEED= 883078041

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node7.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		: 3000.231
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		: 3000.231
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:       1621568 kB
Buffers:         44712 kB
Cached:         287200 kB
SwapCached:      15840 kB
Active:         113148 kB
Inactive:       249504 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1621568 kB
SwapTotal:     4192956 kB
SwapFree:      4157048 kB
Dirty:            2976 kB
Writeback:           0 kB
Mapped:          37648 kB
Slab:            57128 kB
Committed_AS: 14696320 kB
PageTables:       1876 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= 66554 MiB

End job on node7 on Tue May  8 14:21:45 UTC 2007