Trace number 319526

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) 5.36 3.22674

General information on the benchmark

Nameindustrial/
crypto/mizh-md5-48-5.cnf
MD5SUM8ab50418497c0326ed1ff5d73a4e24a3
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark76.9443
Satisfiable
(Un)Satisfiability was proved
Number of variables66892
Number of clauses279256
Sum of the clauses size832648
Maximum clause length4
Minimum clause length1
Number of clauses of size 1201
Number of clauses of size 2120496
Number of clauses of size 342781
Number of clauses of size 4115778
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/319526-1173032314/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.49/0.57	c Input file : '/tmp/evaluation/319526-1173032314/instance-319526-1173032314.cnf'
0.49/0.57	c [#vars: 66892, #clauses: 279256 , (1-4)-CNF]
0.79/0.85	c unit clauses propagate before processing (#clause: 238959)
0.79/0.85	c estimated distribution: 8 tasks
0.89/0.96	c [PID]: 11180 11181 11182 11183 11184 11185 11186
4.62/3.04	c [PID]: 11187
4.62/3.04	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/node72/watcher-319526-1173032314 -o ROOT/results/node72/solver-319526-1173032314 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/319526-1173032314/kcnfs-smp /tmp/evaluation/319526-1173032314/instance-319526-1173032314.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: 1.00 1.00 0.91 3/77 11178
/proc/meminfo: memFree=1620744/2055920 swapFree=4152604/4192956
[pid=11178] ppid=11176 vsize=180916 CPUtime=0
/proc/11178/stat : 11178 (kcnfs-smp) R 11176 11178 10542 0 -1 4194304 130 0 0 0 0 0 0 0 18 0 1 0 323199260 185257984 115 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/11178/statm: 45229 116 48 160 0 45067 0

[startup+0.0818791 s]
/proc/loadavg: 1.00 1.00 0.91 3/77 11178
/proc/meminfo: memFree=1620744/2055920 swapFree=4152604/4192956
[pid=11178] ppid=11176 vsize=185140 CPUtime=0.07
/proc/11178/stat : 11178 (kcnfs-smp) R 11176 11178 10542 0 -1 4194304 1181 0 0 0 7 0 0 0 18 0 1 0 323199260 189583360 1166 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/11178/statm: 46285 1167 48 160 0 46123 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 185140

[startup+0.10188 s]
/proc/loadavg: 1.00 1.00 0.91 3/77 11178
/proc/meminfo: memFree=1620744/2055920 swapFree=4152604/4192956
[pid=11178] ppid=11176 vsize=186196 CPUtime=0.09
/proc/11178/stat : 11178 (kcnfs-smp) R 11176 11178 10542 0 -1 4194304 1436 0 0 0 9 0 0 0 18 0 1 0 323199260 190664704 1421 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/11178/statm: 46549 1421 48 160 0 46387 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186196

[startup+0.301898 s]
/proc/loadavg: 1.00 1.00 0.91 3/77 11178
/proc/meminfo: memFree=1620744/2055920 swapFree=4152604/4192956
[pid=11178] ppid=11176 vsize=196492 CPUtime=0.29
/proc/11178/stat : 11178 (kcnfs-smp) R 11176 11178 10542 0 -1 4194304 4017 0 0 0 28 1 0 0 19 0 1 0 323199260 201207808 4002 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/11178/statm: 49123 4002 48 160 0 48961 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196492

[startup+0.701935 s]
/proc/loadavg: 1.00 1.00 0.91 3/77 11178
/proc/meminfo: memFree=1620744/2055920 swapFree=4152604/4192956
[pid=11178] ppid=11176 vsize=223992 CPUtime=0.69
/proc/11178/stat : 11178 (kcnfs-smp) R 11176 11178 10542 0 -1 4194304 17679 0 0 0 62 7 0 0 22 0 1 0 323199260 229367808 17663 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134542374 0 0 4096 0 0 0 0 17 1 0 0
/proc/11178/statm: 55998 17663 51 160 0 55836 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 223992

[startup+1.50202 s]
/proc/loadavg: 1.00 1.00 0.91 3/79 11180
/proc/meminfo: memFree=1512184/2055920 swapFree=4152604/4192956
[pid=11178] ppid=11176 vsize=223464 CPUtime=1.17
/proc/11178/stat : 11178 (kcnfs-smp) R 11176 11178 10542 0 -1 4194304 36393 0 0 0 98 19 0 0 25 0 1 0 323199260 228827136 23879 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134692219 0 0 4096 0 0 0 0 17 0 0 0
/proc/11178/statm: 55866 23879 66 160 0 55704 0
[pid=11180] ppid=11178 vsize=223464 CPUtime=0.42
/proc/11180/stat : 11180 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 3204 0 0 0 41 1 0 0 25 0 1 0 323199356 228827136 23880 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 2 0 0 0 17 1 0 0
/proc/11180/statm: 55866 23880 65 160 0 55704 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 446928

[startup+3.10118 s]
/proc/loadavg: 1.24 1.05 0.93 7/83 11184
/proc/meminfo: memFree=1458008/2055920 swapFree=4152604/4192956
[pid=11178] ppid=11176 vsize=223464 CPUtime=1.44
/proc/11178/stat : 11178 (kcnfs-smp) S 11176 11178 10542 0 -1 4194304 45920 0 0 0 118 26 0 0 25 0 1 0 323199260 228827136 23880 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/11178/statm: 55866 23880 66 160 0 55704 0
[pid=11180] ppid=11178 vsize=223464 CPUtime=1.01
/proc/11180/stat : 11180 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 3429 0 0 0 100 1 0 0 25 0 1 0 323199356 228827136 23891 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134632020 0 0 4096 2 0 0 0 17 1 0 0
/proc/11180/statm: 55866 23891 67 160 0 55704 0
[pid=11181] ppid=11178 vsize=223464 CPUtime=0.73
/proc/11181/stat : 11181 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 3251 0 0 0 71 2 0 0 25 0 1 0 323199361 228827136 23884 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708962 0 0 4096 0 0 0 0 17 1 0 0
/proc/11181/statm: 55866 23884 66 160 0 55704 0
[pid=11182] ppid=11178 vsize=223464 CPUtime=0.77
/proc/11182/stat : 11182 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 3269 0 0 0 75 2 0 0 25 0 1 0 323199383 228827136 23888 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720302 0 0 4096 2 0 0 0 17 1 0 0
/proc/11182/statm: 55866 23888 67 160 0 55704 0
[pid=11183] ppid=11178 vsize=223464 CPUtime=0.53
/proc/11183/stat : 11183 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 3237 0 0 0 51 2 0 0 25 0 1 0 323199401 228827136 23884 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 0 0 0 0 17 0 0 0
/proc/11183/statm: 55866 23884 66 160 0 55704 0
[pid=11184] ppid=11178 vsize=223464 CPUtime=0.3
/proc/11184/stat : 11184 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 3203 0 0 0 28 2 0 0 25 0 1 0 323199437 228827136 23881 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720408 0 0 4096 2 0 0 0 17 0 0 0
/proc/11184/statm: 55866 23881 66 160 0 55704 0
Current children cumulated CPU time (s) 4.78
Current children cumulated vsize (KiB) 1340784



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+3.20219 s]
/proc/loadavg: 1.24 1.05 0.93 9/86 11187
/proc/meminfo: memFree=1421304/2055920 swapFree=4152604/4192956
[pid=11178] ppid=11176 vsize=223464 CPUtime=1.44
/proc/11178/stat : 11178 (kcnfs-smp) S 11176 11178 10542 0 -1 4194304 45920 0 0 0 118 26 0 0 25 0 1 0 323199260 228827136 23880 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/11178/statm: 55866 23880 66 160 0 55704 0
[pid=11180] ppid=11178 vsize=223464 CPUtime=1.01
/proc/11180/stat : 11180 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 3429 0 0 0 100 1 0 0 25 0 1 0 323199356 228827136 23891 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134632020 0 0 4096 2 0 0 0 17 1 0 0
/proc/11180/statm: 55866 23891 67 160 0 55704 0
[pid=11181] ppid=11178 vsize=223464 CPUtime=0.79
/proc/11181/stat : 11181 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 3251 0 0 0 77 2 0 0 25 0 1 0 323199361 228827136 23884 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 0 0 0 0 17 1 0 0
/proc/11181/statm: 55866 23884 66 160 0 55704 0
[pid=11182] ppid=11178 vsize=223464 CPUtime=0.82
/proc/11182/stat : 11182 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 3275 0 0 0 80 2 0 0 25 0 1 0 323199383 228827136 23888 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 2 0 0 0 17 1 0 0
/proc/11182/statm: 55866 23888 67 160 0 55704 0
[pid=11183] ppid=11178 vsize=223464 CPUtime=0.53
/proc/11183/stat : 11183 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 3237 0 0 0 51 2 0 0 25 0 1 0 323199401 228827136 23884 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 0 0 0 0 17 0 0 0
/proc/11183/statm: 55866 23884 66 160 0 55704 0
[pid=11184] ppid=11178 vsize=223464 CPUtime=0.4
/proc/11184/stat : 11184 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 3204 0 0 0 38 2 0 0 25 0 1 0 323199437 228827136 23882 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 2 0 0 0 17 0 0 0
/proc/11184/statm: 55866 23882 66 160 0 55704 0
[pid=11185] ppid=11178 vsize=223464 CPUtime=0.23
/proc/11185/stat : 11185 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 3228 0 0 0 21 2 0 0 25 0 1 0 323199473 228827136 23881 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720328 0 0 4096 0 0 0 0 17 0 0 0
/proc/11185/statm: 55866 23881 66 160 0 55704 0
[pid=11186] ppid=11178 vsize=223464 CPUtime=0.11
/proc/11186/stat : 11186 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 3202 0 0 0 10 1 0 0 25 0 1 0 323199515 228827136 23880 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 2 0 0 0 17 0 0 0
/proc/11186/statm: 55866 23880 66 160 0 55704 0
[pid=11187] ppid=11178 vsize=223464 CPUtime=0.03
/proc/11187/stat : 11187 (kcnfs-smp) R 11178 11178 10542 0 -1 4194368 2362 0 0 0 1 2 0 0 25 0 1 0 323199561 228827136 23880 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720364 0 0 4096 0 0 0 0 17 1 0 0
/proc/11187/statm: 55866 23880 66 160 0 55704 0
Current children cumulated CPU time (s) 5.36
Current children cumulated vsize (KiB) 2011176

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 11178 and gives childrusage.ru_utime.tv_sec=1 childrusage.ru_utime.tv_usec=180820 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=271958
CPU time returned by wait4() is 1.45278
while last known CPU time is 5.36

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

Real time (s): 3.22674
CPU time (s): 5.36
CPU user time (s): 4.96
CPU system time (s): 0.4
CPU usage (%): 166.112
Max. virtual memory (cumulated for all children) (KiB): 2011176

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.18082
system time used= 0.271958
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 45920
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= 42

runsolver used 0.007998 second user time and 0.019996 second system time

The end

Launcher Data (download as text)

Begin job on node72 on Sun Mar  4 18:18:35 UTC 2007

IDJOB= 319526
IDBENCH= 20481
IDSOLVER= 112
FILE ID= node72/319526-1173032314

PBS_JOBID= 4012436

Free space on /tmp= 66458 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/crypto/mizh-md5-48-5.cnf
COMMAND LINE= /tmp/evaluation/319526-1173032314/kcnfs-smp /tmp/evaluation/319526-1173032314/instance-319526-1173032314.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node72/watcher-319526-1173032314 -o ROOT/results/node72/solver-319526-1173032314 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/319526-1173032314/kcnfs-smp /tmp/evaluation/319526-1173032314/instance-319526-1173032314.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  8ab50418497c0326ed1ff5d73a4e24a3

RANDOM SEED= 220110435

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node72.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		: 3000.236
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		: 3000.236
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:       1621152 kB
Buffers:         44168 kB
Cached:         290648 kB
SwapCached:       8720 kB
Active:         168564 kB
Inactive:       192160 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1621152 kB
SwapTotal:     4192956 kB
SwapFree:      4152604 kB
Dirty:            8664 kB
Writeback:           0 kB
Mapped:          32864 kB
Slab:            59672 kB
Committed_AS: 10460140 kB
PageTables:       1688 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= 66458 MiB

End job on node72 on Sun Mar  4 18:18:40 UTC 2007