Trace number 319608

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) 5.61 3.22523

General information on the benchmark

Nameindustrial/crypto/
mizh-sha0-36-2.cnf
MD5SUM82bf685774b76ba263c886940c3aa94d
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark174.274
Satisfiable
(Un)Satisfiability was proved
Number of variables50073
Number of clauses210239
Sum of the clauses size628391
Maximum clause length4
Minimum clause length1
Number of clauses of size 1177
Number of clauses of size 286996
Number of clauses of size 338042
Number of clauses of size 485024
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/319608-1173033621/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.39/0.41	c Input file : '/tmp/evaluation/319608-1173033621/instance-319608-1173033621.cnf'
0.39/0.41	c [#vars: 50073, #clauses: 210239 , (1-4)-CNF]
0.59/0.62	c unit clauses propagate before processing (#clause: 177562)
0.59/0.62	c estimated distribution: 8 tasks
0.69/0.70	c [PID]: 32056 32057 32058 32059 32060 32061 32062
3.40/2.15	c [PID]: 32063
3.40/2.15	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/node1/watcher-319608-1173033621 -o ROOT/results/node1/solver-319608-1173033621 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/319608-1173033621/kcnfs-smp /tmp/evaluation/319608-1173033621/instance-319608-1173033621.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: 0.99 0.97 0.91 3/77 32054
/proc/meminfo: memFree=1164288/2055920 swapFree=4159124/4192956
[pid=32054] ppid=32052 vsize=180916 CPUtime=0
/proc/32054/stat : 32054 (kcnfs-smp) R 32052 32054 31387 0 -1 4194304 130 0 0 0 0 0 0 0 18 0 1 0 323317205 185257984 115 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/32054/statm: 45229 115 48 160 0 45067 0

[startup+0.061454 s]
/proc/loadavg: 0.99 0.97 0.91 3/77 32054
/proc/meminfo: memFree=1164288/2055920 swapFree=4159124/4192956
[pid=32054] ppid=32052 vsize=184084 CPUtime=0.05
/proc/32054/stat : 32054 (kcnfs-smp) R 32052 32054 31387 0 -1 4194304 921 0 0 0 5 0 0 0 18 0 1 0 323317205 188502016 906 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/32054/statm: 46021 906 48 160 0 45859 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 184084

[startup+0.101457 s]
/proc/loadavg: 0.99 0.97 0.91 3/77 32054
/proc/meminfo: memFree=1164288/2055920 swapFree=4159124/4192956
[pid=32054] ppid=32052 vsize=186196 CPUtime=0.09
/proc/32054/stat : 32054 (kcnfs-smp) R 32052 32054 31387 0 -1 4194304 1442 0 0 0 8 1 0 0 18 0 1 0 323317205 190664704 1427 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/32054/statm: 46549 1427 48 160 0 46387 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186196

[startup+0.301481 s]
/proc/loadavg: 0.99 0.97 0.91 3/77 32054
/proc/meminfo: memFree=1164288/2055920 swapFree=4159124/4192956
[pid=32054] ppid=32052 vsize=196492 CPUtime=0.29
/proc/32054/stat : 32054 (kcnfs-smp) R 32052 32054 31387 0 -1 4194304 4025 0 0 0 27 2 0 0 19 0 1 0 323317205 201207808 4010 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/32054/statm: 49123 4011 48 160 0 48961 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196492

[startup+0.701527 s]
/proc/loadavg: 0.99 0.97 0.91 3/77 32054
/proc/meminfo: memFree=1164288/2055920 swapFree=4159124/4192956
[pid=32054] ppid=32052 vsize=213012 CPUtime=0.69
/proc/32054/stat : 32054 (kcnfs-smp) R 32052 32054 31387 0 -1 4194304 18103 0 0 0 62 7 0 0 23 0 1 0 323317205 218124288 17989 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 0 0 0 0 17 1 0 0
/proc/32054/statm: 53253 17989 66 160 0 53091 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 213012

[startup+1.50265 s]
/proc/loadavg: 0.99 0.97 0.91 5/81 32058
/proc/meminfo: memFree=1058976/2055920 swapFree=4159124/4192956
[pid=32054] ppid=32052 vsize=213012 CPUtime=0.94
/proc/32054/stat : 32054 (kcnfs-smp) R 32052 32054 31387 0 -1 4194304 30502 0 0 0 79 15 0 0 25 0 1 0 323317205 218124288 17989 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 0 0 0 0 17 1 0 0
/proc/32054/statm: 53253 17989 66 160 0 53091 0
[pid=32056] ppid=32054 vsize=213012 CPUtime=0.49
/proc/32056/stat : 32056 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2782 0 0 0 48 1 0 0 25 0 1 0 323317276 218124288 17994 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 2 0 0 0 17 1 0 0
/proc/32056/statm: 53253 17994 66 160 0 53091 0
[pid=32057] ppid=32054 vsize=213012 CPUtime=0.4
/proc/32057/stat : 32057 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2719 0 0 0 38 2 0 0 25 0 1 0 323317279 218124288 17993 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 0 0 0 0 17 0 0 0
/proc/32057/statm: 53253 17993 66 160 0 53091 0
[pid=32058] ppid=32054 vsize=213012 CPUtime=0.24
/proc/32058/stat : 32058 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2727 0 0 0 23 1 0 0 25 0 1 0 323317296 218124288 17991 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720561 0 0 4096 2 0 0 0 17 0 0 0
/proc/32058/statm: 53253 17991 66 160 0 53091 0
Current children cumulated CPU time (s) 2.07
Current children cumulated vsize (KiB) 852048

[startup+3.10183 s]
/proc/loadavg: 1.47 1.07 0.94 9/85 32062
/proc/meminfo: memFree=1014976/2055920 swapFree=4159124/4192956
[pid=32054] ppid=32052 vsize=213012 CPUtime=1.05
/proc/32054/stat : 32054 (kcnfs-smp) S 32052 32054 31387 0 -1 4194304 35667 0 0 0 87 18 0 0 25 0 1 0 323317205 218124288 17989 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/32054/statm: 53253 17989 66 160 0 53091 0
[pid=32056] ppid=32054 vsize=213012 CPUtime=0.94
/proc/32056/stat : 32056 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2811 0 0 0 93 1 0 0 25 0 1 0 323317276 218124288 17997 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 2 0 0 0 17 1 0 0
/proc/32056/statm: 53253 17997 66 160 0 53091 0
[pid=32057] ppid=32054 vsize=213012 CPUtime=0.82
/proc/32057/stat : 32057 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2748 0 0 0 80 2 0 0 25 0 1 0 323317279 218124288 17995 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 0 0 0 0 17 0 0 0
/proc/32057/statm: 53253 17995 66 160 0 53091 0
[pid=32058] ppid=32054 vsize=213012 CPUtime=0.71
/proc/32058/stat : 32058 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2810 0 0 0 70 1 0 0 25 0 1 0 323317296 218124288 17995 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 2 0 0 0 17 0 0 0
/proc/32058/statm: 53253 17995 66 160 0 53091 0
[pid=32059] ppid=32054 vsize=213012 CPUtime=0.64
/proc/32059/stat : 32059 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2747 0 0 0 61 3 0 0 25 0 1 0 323317312 218124288 17994 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720251 0 0 4096 0 0 0 0 17 0 0 0
/proc/32059/statm: 53253 17994 66 160 0 53091 0
[pid=32060] ppid=32054 vsize=213012 CPUtime=0.47
/proc/32060/stat : 32060 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2747 0 0 0 45 2 0 0 25 0 1 0 323317345 218124288 17993 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720364 0 0 4096 2 0 0 0 17 1 0 0
/proc/32060/statm: 53253 17993 66 160 0 53091 0
[pid=32061] ppid=32054 vsize=213012 CPUtime=0.33
/proc/32061/stat : 32061 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2710 0 0 0 31 2 0 0 25 0 1 0 323317372 218124288 17991 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 0 0 0 0 17 0 0 0
/proc/32061/statm: 53253 17991 66 160 0 53091 0
[pid=32062] ppid=32054 vsize=213012 CPUtime=0.24
/proc/32062/stat : 32062 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2730 0 0 0 22 2 0 0 25 0 1 0 323317412 218124288 17991 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720408 0 0 4096 2 0 0 0 17 1 0 0
/proc/32062/statm: 53253 17991 66 160 0 53091 0
Current children cumulated CPU time (s) 5.2
Current children cumulated vsize (KiB) 1704096



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+3.20284 s]
/proc/loadavg: 1.47 1.07 0.94 9/86 32063
/proc/meminfo: memFree=1000632/2055920 swapFree=4159124/4192956
[pid=32054] ppid=32052 vsize=213012 CPUtime=1.05
/proc/32054/stat : 32054 (kcnfs-smp) S 32052 32054 31387 0 -1 4194304 35667 0 0 0 87 18 0 0 25 0 1 0 323317205 218124288 17989 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/32054/statm: 53253 17989 66 160 0 53091 0
[pid=32056] ppid=32054 vsize=213012 CPUtime=0.94
/proc/32056/stat : 32056 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2811 0 0 0 93 1 0 0 25 0 1 0 323317276 218124288 17997 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 2 0 0 0 17 1 0 0
/proc/32056/statm: 53253 17997 66 160 0 53091 0
[pid=32057] ppid=32054 vsize=213012 CPUtime=0.9
/proc/32057/stat : 32057 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2751 0 0 0 88 2 0 0 25 0 1 0 323317279 218124288 17997 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 0 0 0 0 17 0 0 0
/proc/32057/statm: 53253 17997 66 160 0 53091 0
[pid=32058] ppid=32054 vsize=213012 CPUtime=0.71
/proc/32058/stat : 32058 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2810 0 0 0 70 1 0 0 25 0 1 0 323317296 218124288 17995 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 2 0 0 0 17 0 0 0
/proc/32058/statm: 53253 17995 66 160 0 53091 0
[pid=32059] ppid=32054 vsize=213012 CPUtime=0.64
/proc/32059/stat : 32059 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2747 0 0 0 61 3 0 0 25 0 1 0 323317312 218124288 17994 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720251 0 0 4096 0 0 0 0 17 0 0 0
/proc/32059/statm: 53253 17994 66 160 0 53091 0
[pid=32060] ppid=32054 vsize=213012 CPUtime=0.52
/proc/32060/stat : 32060 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2788 0 0 0 50 2 0 0 25 0 1 0 323317345 218124288 17994 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708962 0 0 4096 2 0 0 0 17 1 0 0
/proc/32060/statm: 53253 17994 66 160 0 53091 0
[pid=32061] ppid=32054 vsize=213012 CPUtime=0.36
/proc/32061/stat : 32061 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2710 0 0 0 34 2 0 0 25 0 1 0 323317372 218124288 17991 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 0 0 0 0 17 0 0 0
/proc/32061/statm: 53253 17991 66 160 0 53091 0
[pid=32062] ppid=32054 vsize=213012 CPUtime=0.29
/proc/32062/stat : 32062 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2735 0 0 0 27 2 0 0 25 0 1 0 323317412 218124288 17991 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720483 0 0 4096 2 0 0 0 17 1 0 0
/proc/32062/statm: 53253 17991 66 160 0 53091 0
[pid=32063] ppid=32054 vsize=213012 CPUtime=0.2
/proc/32063/stat : 32063 (kcnfs-smp) R 32054 32054 31387 0 -1 4194368 2703 0 0 0 18 2 0 0 25 0 1 0 323317420 218124288 17990 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567196 0 0 4096 0 0 0 0 17 1 0 0
/proc/32063/statm: 53253 17990 66 160 0 53091 0
Current children cumulated CPU time (s) 5.61
Current children cumulated vsize (KiB) 1917108

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 32054 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=870867 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=186971
CPU time returned by wait4() is 1.05784
while last known CPU time is 5.61

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

Real time (s): 3.22523
CPU time (s): 5.61
CPU user time (s): 5.28
CPU system time (s): 0.33
CPU usage (%): 173.941
Max. virtual memory (cumulated for all children) (KiB): 1917108

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.870867
system time used= 0.186971
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 35667
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= 43

runsolver used 0.004999 second user time and 0.023996 second system time

The end

Launcher Data (download as text)

Begin job on node1 on Sun Mar  4 18:40:21 UTC 2007

IDJOB= 319608
IDBENCH= 20483
IDSOLVER= 112
FILE ID= node1/319608-1173033621

PBS_JOBID= 4012251

Free space on /tmp= 66515 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/crypto/mizh-sha0-36-2.cnf
COMMAND LINE= /tmp/evaluation/319608-1173033621/kcnfs-smp /tmp/evaluation/319608-1173033621/instance-319608-1173033621.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-319608-1173033621 -o ROOT/results/node1/solver-319608-1173033621 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/319608-1173033621/kcnfs-smp /tmp/evaluation/319608-1173033621/instance-319608-1173033621.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  82bf685774b76ba263c886940c3aa94d

RANDOM SEED= 903235673

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node1.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		: 3000.230
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		: 3000.230
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:       1164760 kB
Buffers:         41632 kB
Cached:         765456 kB
SwapCached:      13876 kB
Active:         346032 kB
Inactive:       487596 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1164760 kB
SwapTotal:     4192956 kB
SwapFree:      4159124 kB
Dirty:            7360 kB
Writeback:           0 kB
Mapped:          33440 kB
Slab:            43120 kB
Committed_AS:  1084992 kB
PageTables:       1752 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= 66515 MiB

End job on node1 on Sun Mar  4 18:40:27 UTC 2007