Trace number 330714

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
KCNFS SMP? (MO) 5.43 3.22474

General information on the benchmark

Nameindustrial/IBM_FV_2004_30/
IBM_FV_2004_rule_batch_30_SAT_dat.k30.cnf
MD5SUM191bf76ba52591c5123b15dea5992d42
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables60464
Number of clauses250489
Sum of the clauses size640141
Maximum clause length12
Minimum clause length1
Number of clauses of size 12072
Number of clauses of size 2176950
Number of clauses of size 346686
Number of clauses of size 48874
Number of clauses of size 55039
Number of clauses of size over 510868

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/330714-1173171851/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.49/0.51	c Input file : '/tmp/evaluation/330714-1173171851/instance-330714-1173171851.cnf'
0.49/0.51	c [#vars: 60464, #clauses: 250489 , (1-12)-CNF]
0.69/0.74	c unit clauses propagate before processing (#clause: 220938)
0.69/0.74	c estimated distribution: 8 tasks
0.79/0.87	c [PID]: 6679 6680 6681 6682 6683 6684 6685
4.22/2.66	c [PID]: 6686
4.22/2.66	c real distribution: 8 tasks

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node61/watcher-330714-1173171851 -o ROOT/results/node61/solver-330714-1173171851 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/330714-1173171851/kcnfs-smp /tmp/evaluation/330714-1173171851/instance-330714-1173171851.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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 3/64 6677
/proc/meminfo: memFree=1404848/2055920 swapFree=4183424/4192956
[pid=6677] ppid=6675 vsize=180784 CPUtime=0
/proc/6677/stat : 6677 (kcnfs-smp) R 6675 6677 5176 0 -1 4194304 66 0 0 0 0 0 0 0 18 0 1 0 337142077 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/6677/statm: 45196 51 43 160 0 45034 0

[startup+0.0968531 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 6677
/proc/meminfo: memFree=1404848/2055920 swapFree=4183424/4192956
[pid=6677] ppid=6675 vsize=180784 CPUtime=0.09
/proc/6677/stat : 6677 (kcnfs-smp) R 6675 6677 5176 0 -1 4194304 66 0 0 0 9 0 0 0 18 0 1 0 337142077 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/6677/statm: 45196 51 43 160 0 45034 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 180784

[startup+0.102853 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 6677
/proc/meminfo: memFree=1404848/2055920 swapFree=4183424/4192956
[pid=6677] ppid=6675 vsize=180784 CPUtime=0.1
/proc/6677/stat : 6677 (kcnfs-smp) R 6675 6677 5176 0 -1 4194304 103 0 0 0 10 0 0 0 18 0 1 0 337142077 185122816 88 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/6677/statm: 45196 88 48 160 0 45034 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 180784

[startup+0.302871 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 6677
/proc/meminfo: memFree=1404848/2055920 swapFree=4183424/4192956
[pid=6677] ppid=6675 vsize=192136 CPUtime=0.3
/proc/6677/stat : 6677 (kcnfs-smp) R 6675 6677 5176 0 -1 4194304 2918 0 0 0 29 1 0 0 19 0 1 0 337142077 196747264 2903 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/6677/statm: 48034 2904 48 160 0 47872 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 192136

[startup+0.701909 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 6677
/proc/meminfo: memFree=1404848/2055920 swapFree=4183424/4192956
[pid=6677] ppid=6675 vsize=215448 CPUtime=0.69
/proc/6677/stat : 6677 (kcnfs-smp) R 6675 6677 5176 0 -1 4194304 15061 0 0 0 63 6 0 0 22 0 1 0 337142077 220618752 15045 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134818776 0 0 4096 0 0 0 0 17 1 0 0
/proc/6677/statm: 53862 15045 51 160 0 53700 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 215448

[startup+1.502 s]
/proc/loadavg: 0.92 0.98 0.99 4/67 6680
/proc/meminfo: memFree=1297304/2055920 swapFree=4183424/4192956
[pid=6677] ppid=6675 vsize=214968 CPUtime=1.07
/proc/6677/stat : 6677 (kcnfs-smp) R 6675 6677 5176 0 -1 4194304 32794 0 0 0 92 15 0 0 25 0 1 0 337142077 220127232 20458 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134696904 0 0 4096 0 0 0 0 17 1 0 0
/proc/6677/statm: 53742 20458 66 160 0 53580 0
[pid=6679] ppid=6677 vsize=214968 CPUtime=0.51
/proc/6679/stat : 6679 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3161 0 0 0 50 1 0 0 25 0 1 0 337142164 220127232 20499 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567303 0 0 4096 2 0 0 0 17 1 0 0
/proc/6679/statm: 53742 20499 66 160 0 53580 0
[pid=6680] ppid=6677 vsize=214968 CPUtime=0.32
/proc/6680/stat : 6680 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3146 0 0 0 31 1 0 0 25 0 1 0 337142168 220127232 20486 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720438 0 0 4096 0 0 0 0 17 0 0 0
/proc/6680/statm: 53742 20486 66 160 0 53580 0
Current children cumulated CPU time (s) 1.9
Current children cumulated vsize (KiB) 644904

[startup+3.10115 s]
/proc/loadavg: 1.25 1.05 1.02 8/71 6684
/proc/meminfo: memFree=1245304/2055920 swapFree=4183424/4192956
[pid=6677] ppid=6675 vsize=214968 CPUtime=1.33
/proc/6677/stat : 6677 (kcnfs-smp) S 6675 6677 5176 0 -1 4194304 42000 0 0 0 111 22 0 0 25 0 1 0 337142077 220127232 20458 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/6677/statm: 53742 20458 66 160 0 53580 0
[pid=6679] ppid=6677 vsize=214968 CPUtime=0.95
/proc/6679/stat : 6679 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3296 0 0 0 94 1 0 0 25 0 1 0 337142164 220127232 20541 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 2 0 0 0 17 0 0 0
/proc/6679/statm: 53742 20541 67 160 0 53580 0
[pid=6680] ppid=6677 vsize=214968 CPUtime=0.82
/proc/6680/stat : 6680 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3271 0 0 0 81 1 0 0 25 0 1 0 337142168 220127232 20549 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720296 0 0 4096 0 0 0 0 17 0 0 0
/proc/6680/statm: 53742 20549 66 160 0 53580 0
[pid=6681] ppid=6677 vsize=214968 CPUtime=0.72
/proc/6681/stat : 6681 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3193 0 0 0 71 1 0 0 25 0 1 0 337142190 220127232 20522 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 2 0 0 0 17 0 0 0
/proc/6681/statm: 53742 20522 67 160 0 53580 0
[pid=6682] ppid=6677 vsize=214968 CPUtime=0.53
/proc/6682/stat : 6682 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3162 0 0 0 51 2 0 0 25 0 1 0 337142207 220127232 20506 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 0 0 0 0 17 1 0 0
/proc/6682/statm: 53742 20506 66 160 0 53580 0
[pid=6683] ppid=6677 vsize=214968 CPUtime=0.4
/proc/6683/stat : 6683 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3150 0 0 0 38 2 0 0 25 0 1 0 337142244 220127232 20486 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720428 0 0 4096 2 0 0 0 17 1 0 0
/proc/6683/statm: 53742 20486 66 160 0 53580 0
[pid=6684] ppid=6677 vsize=214968 CPUtime=0.24
/proc/6684/stat : 6684 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3135 0 0 0 23 1 0 0 25 0 1 0 337142279 220127232 20473 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720483 0 0 4096 0 0 0 0 17 1 0 0
/proc/6684/statm: 53742 20473 66 160 0 53580 0
Current children cumulated CPU time (s) 4.99
Current children cumulated vsize (KiB) 1504776



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+3.20217 s]
/proc/loadavg: 1.25 1.05 1.02 9/73 6686
/proc/meminfo: memFree=1218272/2055920 swapFree=4183424/4192956
[pid=6677] ppid=6675 vsize=214968 CPUtime=1.33
/proc/6677/stat : 6677 (kcnfs-smp) S 6675 6677 5176 0 -1 4194304 42000 0 0 0 111 22 0 0 25 0 1 0 337142077 220127232 20458 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/6677/statm: 53742 20458 66 160 0 53580 0
[pid=6679] ppid=6677 vsize=214968 CPUtime=1.01
/proc/6679/stat : 6679 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3298 0 0 0 100 1 0 0 25 0 1 0 337142164 220127232 20543 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720312 0 0 4096 2 0 0 0 17 0 0 0
/proc/6679/statm: 53742 20543 67 160 0 53580 0
[pid=6680] ppid=6677 vsize=214968 CPUtime=0.86
/proc/6680/stat : 6680 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3276 0 0 0 85 1 0 0 25 0 1 0 337142168 220127232 20549 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720511 0 0 4096 0 0 0 0 17 0 0 0
/proc/6680/statm: 53742 20549 66 160 0 53580 0
[pid=6681] ppid=6677 vsize=214968 CPUtime=0.72
/proc/6681/stat : 6681 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3193 0 0 0 71 1 0 0 25 0 1 0 337142190 220127232 20522 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 2 0 0 0 17 0 0 0
/proc/6681/statm: 53742 20522 67 160 0 53580 0
[pid=6682] ppid=6677 vsize=214968 CPUtime=0.53
/proc/6682/stat : 6682 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3162 0 0 0 51 2 0 0 25 0 1 0 337142207 220127232 20506 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 0 0 0 0 17 1 0 0
/proc/6682/statm: 53742 20506 66 160 0 53580 0
[pid=6683] ppid=6677 vsize=214968 CPUtime=0.4
/proc/6683/stat : 6683 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3150 0 0 0 38 2 0 0 25 0 1 0 337142244 220127232 20486 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720428 0 0 4096 2 0 0 0 17 1 0 0
/proc/6683/statm: 53742 20486 66 160 0 53580 0
[pid=6684] ppid=6677 vsize=214968 CPUtime=0.32
/proc/6684/stat : 6684 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3144 0 0 0 31 1 0 0 25 0 1 0 337142279 220127232 20481 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720537 0 0 4096 0 0 0 0 17 1 0 0
/proc/6684/statm: 53742 20481 66 160 0 53580 0
[pid=6685] ppid=6677 vsize=214968 CPUtime=0.13
/proc/6685/stat : 6685 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3129 0 0 0 12 1 0 0 25 0 1 0 337142322 220127232 20466 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 2 0 0 0 17 1 0 0
/proc/6685/statm: 53742 20466 66 160 0 53580 0
[pid=6686] ppid=6677 vsize=214968 CPUtime=0.13
/proc/6686/stat : 6686 (kcnfs-smp) R 6677 6677 5176 0 -1 4194368 3127 0 0 0 11 2 0 0 25 0 1 0 337142339 220127232 20468 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720251 0 0 4096 0 0 0 0 17 0 0 0
/proc/6686/statm: 53742 20468 66 160 0 53580 0
Current children cumulated CPU time (s) 5.43
Current children cumulated vsize (KiB) 1934712

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

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

Child ended because it received signal 15 (SIGTERM)

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 6677 and gives childrusage.ru_utime.tv_sec=1 childrusage.ru_utime.tv_usec=111830 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=234964
CPU time returned by wait4() is 1.34679
while last known CPU time is 5.43

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 3.22474
CPU time (s): 5.43
CPU user time (s): 5.1
CPU system time (s): 0.33
CPU usage (%): 168.386
Max. virtual memory (cumulated for all children) (KiB): 1934712

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.11183
system time used= 0.234964
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 42000
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= 9
involuntary context switches= 28

runsolver used 0.005999 second user time and 0.021996 second system time

The end

Launcher Data (download as text)

Begin job on node61 on Tue Mar  6 09:04:12 UTC 2007

IDJOB= 330714
IDBENCH= 20570
IDSOLVER= 112
FILE ID= node61/330714-1173171851

PBS_JOBID= 4015233

Free space on /tmp= 66504 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/IBM_FV_2004_30/IBM_FV_2004_rule_batch_30_SAT_dat.k30.cnf
COMMAND LINE= /tmp/evaluation/330714-1173171851/kcnfs-smp /tmp/evaluation/330714-1173171851/instance-330714-1173171851.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node61/watcher-330714-1173171851 -o ROOT/results/node61/solver-330714-1173171851 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/330714-1173171851/kcnfs-smp /tmp/evaluation/330714-1173171851/instance-330714-1173171851.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  191bf76ba52591c5123b15dea5992d42

RANDOM SEED= 999732446

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node61.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		: 3000.216
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		: 3000.216
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:       1405256 kB
Buffers:         34860 kB
Cached:         526180 kB
SwapCached:       3496 kB
Active:         162596 kB
Inactive:       420060 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1405256 kB
SwapTotal:     4192956 kB
SwapFree:      4183424 kB
Dirty:            8932 kB
Writeback:           0 kB
Mapped:          27696 kB
Slab:            54120 kB
Committed_AS:   897860 kB
PageTables:       1420 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= 66504 MiB

End job on node61 on Tue Mar  6 09:04:17 UTC 2007