Trace number 418894

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 2007-03-23Signal 9.78951 9.88769

General information on the benchmark

Namenormalized-PB07/PURE-SAT/SAT07/industrial/
anbulagan/medium-unsat/total-5-13-u.opb
MD5SUMe9b85d5d0c50d5207767262b6485986e
Bench CategoryPURE-SAT (instances containing only clauses)
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 benchmark141.55
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables178708
Total number of constraints806681
Number of constraints which are clauses806681
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint10
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 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 10
Number of bits of the biggest sum of numbers4
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/418894-1177398776/instance-418894-1177398776.opb ......

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/418894-1177398776/instance-418894-1177398776.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/node14/watcher-418894-1177398776 -o ROOT/results/node14/solver-418894-1177398776 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/418894-1177398776/PBS4 /tmp/evaluation/418894-1177398776/instance-418894-1177398776.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: 0.00 0.00 0.00 3/77 20390
/proc/meminfo: memFree=1467976/2055920 swapFree=4148784/4192956
[pid=20390] ppid=20388 vsize=18080 CPUtime=0
/proc/20390/stat : 20390 (PBS4) R 20388 20390 20326 0 -1 4194304 497 0 0 0 0 0 0 0 18 0 1 0 187795654 18513920 481 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134572935 0 0 4096 0 0 0 0 17 1 0 0
/proc/20390/statm: 4520 484 81 219 0 4297 0

[startup+0.044868 s]
/proc/loadavg: 0.00 0.00 0.00 3/77 20390
/proc/meminfo: memFree=1467976/2055920 swapFree=4148784/4192956
[pid=20390] ppid=20388 vsize=18080 CPUtime=0.03
/proc/20390/stat : 20390 (PBS4) R 20388 20390 20326 0 -1 4194304 4221 0 0 0 2 1 0 0 18 0 1 0 187795654 18513920 4204 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134572872 0 0 4096 0 0 0 0 17 1 0 0
/proc/20390/statm: 4520 4208 81 219 0 4297 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 18080

[startup+0.101872 s]
/proc/loadavg: 0.00 0.00 0.00 3/77 20390
/proc/meminfo: memFree=1467976/2055920 swapFree=4148784/4192956
[pid=20390] ppid=20388 vsize=25808 CPUtime=0.09
/proc/20390/stat : 20390 (PBS4) R 20388 20390 20326 0 -1 4194304 6401 0 0 0 7 2 0 0 18 0 1 0 187795654 26427392 6157 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135006597 0 0 4096 0 0 0 0 17 1 0 0
/proc/20390/statm: 6452 6157 88 219 0 6229 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 25808

[startup+0.30189 s]
/proc/loadavg: 0.00 0.00 0.00 3/77 20390
/proc/meminfo: memFree=1467976/2055920 swapFree=4148784/4192956
[pid=20390] ppid=20388 vsize=28240 CPUtime=0.29
/proc/20390/stat : 20390 (PBS4) R 20388 20390 20326 0 -1 4194304 6989 0 0 0 27 2 0 0 19 0 1 0 187795654 28917760 6599 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134586686 0 0 4096 0 0 0 0 17 1 0 0
/proc/20390/statm: 7060 6599 89 219 0 6837 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 28240

[startup+0.701929 s]
/proc/loadavg: 0.00 0.00 0.00 3/77 20390
/proc/meminfo: memFree=1467976/2055920 swapFree=4148784/4192956
[pid=20390] ppid=20388 vsize=30820 CPUtime=0.69
/proc/20390/stat : 20390 (PBS4) R 20388 20390 20326 0 -1 4194304 7878 0 0 0 67 2 0 0 23 0 1 0 187795654 31559680 7295 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135057389 0 0 4096 0 0 0 0 17 1 0 0
/proc/20390/statm: 7705 7295 89 219 0 7482 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 30820

[startup+1.502 s]
/proc/loadavg: 0.00 0.00 0.00 2/78 20391
/proc/meminfo: memFree=1435968/2055920 swapFree=4148784/4192956
[pid=20390] ppid=20388 vsize=42236 CPUtime=1.49
/proc/20390/stat : 20390 (PBS4) R 20388 20390 20326 0 -1 4194304 11172 0 0 0 145 4 0 0 25 0 1 0 187795654 43249664 9435 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134596339 0 0 4096 0 0 0 0 17 1 0 0
/proc/20390/statm: 10559 9435 89 219 0 10336 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 42236

[startup+3.10115 s]
/proc/loadavg: 0.08 0.02 0.01 2/78 20391
/proc/meminfo: memFree=1424896/2055920 swapFree=4148784/4192956
[pid=20390] ppid=20388 vsize=56800 CPUtime=3.09
/proc/20390/stat : 20390 (PBS4) R 20388 20390 20326 0 -1 4194304 15640 0 0 0 303 6 0 0 25 0 1 0 187795654 58163200 12366 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134784767 0 0 4096 0 0 0 0 17 1 0 0
/proc/20390/statm: 14200 12366 89 219 0 13977 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 56800

[startup+6.30145 s]
/proc/loadavg: 0.08 0.02 0.01 2/78 20391
/proc/meminfo: memFree=1408384/2055920 swapFree=4148784/4192956
[pid=20390] ppid=20388 vsize=81268 CPUtime=6.28
/proc/20390/stat : 20390 (PBS4) R 20388 20390 20326 0 -1 4194304 22855 0 0 0 619 9 0 0 25 0 1 0 187795654 83218432 16508 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135057389 0 0 4096 0 0 0 0 17 1 0 0
/proc/20390/statm: 20317 16508 89 219 0 20094 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 81268

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

[startup+7.9016 s]
/proc/loadavg: 0.15 0.03 0.01 2/78 20391
/proc/meminfo: memFree=1394312/2055920 swapFree=4148784/4192956
[pid=20390] ppid=20388 vsize=99616 CPUtime=7.89
/proc/20390/stat : 20390 (PBS4) R 20388 20390 20326 0 -1 4194304 25228 0 0 0 778 11 0 0 25 0 1 0 187795654 102006784 18881 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134529780 0 0 4096 0 0 0 0 17 1 0 0
/proc/20390/statm: 24904 18881 89 219 0 24681 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 99616

[startup+8.70168 s]
/proc/loadavg: 0.15 0.03 0.01 2/78 20391
/proc/meminfo: memFree=1389064/2055920 swapFree=4148784/4192956
[pid=20390] ppid=20388 vsize=100692 CPUtime=8.69
/proc/20390/stat : 20390 (PBS4) R 20388 20390 20326 0 -1 4194304 26190 0 0 0 857 12 0 0 25 0 1 0 187795654 103108608 19843 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134530219 0 0 4096 0 0 0 0 17 1 0 0
/proc/20390/statm: 25173 19843 89 219 0 24950 0
Current children cumulated CPU time (s) 8.69
Current children cumulated vsize (KiB) 100692

[startup+9.50175 s]
/proc/loadavg: 0.15 0.03 0.01 2/78 20391
/proc/meminfo: memFree=1389064/2055920 swapFree=4148784/4192956
[pid=20390] ppid=20388 vsize=123900 CPUtime=9.49
/proc/20390/stat : 20390 (PBS4) R 20388 20390 20326 0 -1 4195840 32674 0 0 0 928 21 0 0 25 0 1 0 187795654 126873600 22097 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134587718 0 0 4096 0 0 0 0 17 1 0 0
/proc/20390/statm: 30975 22097 90 219 0 30752 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 123900

[startup+9.70177 s]
/proc/loadavg: 0.15 0.03 0.01 2/78 20391
/proc/meminfo: memFree=1389064/2055920 swapFree=4148784/4192956
[pid=20390] ppid=20388 vsize=123900 CPUtime=9.69
/proc/20390/stat : 20390 (PBS4) R 20388 20390 20326 0 -1 4195840 33243 0 0 0 928 41 0 0 25 0 1 0 187795654 126873600 22097 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134587718 0 0 4096 0 0 0 0 17 1 0 0
/proc/20390/statm: 30975 22097 90 219 0 30752 0
Current children cumulated CPU time (s) 9.69
Current children cumulated vsize (KiB) 123900

[startup+9.80178 s]
/proc/loadavg: 0.15 0.03 0.01 1/77 20391
/proc/meminfo: memFree=1375888/2055920 swapFree=4148784/4192956
[pid=20390] ppid=20388 vsize=0 CPUtime=9.78
/proc/20390/stat : 20390 (PBS4) D 20388 20390 20326 0 -1 4195844 33255 0 0 0 928 50 0 0 24 0 1 0 187795654 0 0 18446744073709551615 0 0 0 0 0 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/20390/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 9.78
Current children cumulated vsize (KiB) 0

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 9.88769
CPU time (s): 9.78951
CPU user time (s): 9.28059
CPU system time (s): 0.508922
CPU usage (%): 99.007
Max. virtual memory (cumulated for all children) (KiB): 140656

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.28059
system time used= 0.508922
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 33255
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= 216

runsolver used 0.012998 second user time and 0.027995 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Tue Apr 24 07:12:58 UTC 2007

IDJOB= 418894
IDBENCH= 47735
IDSOLVER= 157
FILE ID= node14/418894-1177398776

PBS_JOBID= 4675631

Free space on /tmp= 66185 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/PURE-SAT/SAT07/industrial/anbulagan/medium-unsat/total-5-13-u.opb
COMMAND LINE= /tmp/evaluation/418894-1177398776/PBS4 /tmp/evaluation/418894-1177398776/instance-418894-1177398776.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node14/convwatcher-418894-1177398776 -o ROOT/results/node14/conversion-418894-1177398776 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/418894-1177398776/instance-418894-1177398776.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-418894-1177398776 -o ROOT/results/node14/solver-418894-1177398776 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/418894-1177398776/PBS4 /tmp/evaluation/418894-1177398776/instance-418894-1177398776.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  e9b85d5d0c50d5207767262b6485986e

RANDOM SEED= 460585028

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node14.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		: 3000.227
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		: 3000.227
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:       1468512 kB
Buffers:         82680 kB
Cached:         402784 kB
SwapCached:      11820 kB
Active:         248816 kB
Inactive:       260020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1468512 kB
SwapTotal:     4192956 kB
SwapFree:      4148784 kB
Dirty:           25708 kB
Writeback:           0 kB
Mapped:          29956 kB
Slab:            64040 kB
Committed_AS:  7778428 kB
PageTables:       1784 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= 66099 MiB

End job on node14 on Tue Apr 24 07:13:09 UTC 2007