Trace number 1719585

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
MXC 2009-03-10UNSAT 21.9107 21.9166

General information on the benchmark

Nameschup-l2s-abp4-1-k31.cnf
MD5SUM2ec4066bd8381455b1990aa40b382ff0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark14.9847
Satisfiable
(Un)Satisfiability was proved
Number of variables14809
Number of clauses48483
Sum of the clauses size123522
Maximum clause length33
Minimum clause length1
Number of clauses of size 136
Number of clauses of size 224983
Number of clauses of size 322191
Number of clauses of size 4589
Number of clauses of size 5403
Number of clauses of size over 5281

Solver Data 

21.89/21.91	c starting MXC with:
21.89/21.91	c cnf_path = HOME/instance-1719585-1240647602.cnf
21.89/21.91	c restart_strategy = auto
21.89/21.91	c sign_strategy = cached
21.89/21.91	c use_preprocessing = -1
21.89/21.91	c output_implicant = 1
21.89/21.91	c timeout_seconds = 0
21.89/21.91	c running SatELite... done
21.89/21.91	c 9582 vars eliminated
21.89/21.91	c received 608 units and 22144 clauses from SatELite
21.89/21.91	c 10189 assignments made, starting to guess now
21.89/21.91	c ===================================[MXC]=====================================
21.89/21.91	c | Conflicts |                Clause Statistics                   |   Vars   |
21.89/21.91	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
21.89/21.91	c =============================================================================
21.89/21.91	c |         0 |       0    6840    15304        0        0     nan |    14809 |
21.89/21.91	c |       100 |       0    6822    15300       87     1050     6.1 |     4619 |
21.89/21.91	c |       210 |       0    6825    15300      194     1105     7.9 |     4619 |
21.89/21.91	c |       441 |       0    6830    15300      420     1220    11.4 |     4619 |
21.89/21.91	c |       805 |       0    6845    15267      766     1402    10.2 |     4614 |
21.89/21.91	c |      1315 |       0    6822    15182     1224     1657     9.2 |     4577 |
21.89/21.91	c |      1986 |       0    6846    15182     1871     1993     9.4 |     4577 |
21.89/21.91	c |      2834 |       0    6849    15178     1623     2417     9.8 |     4576 |
21.89/21.91	c |      3876 |       0    6875    15178     2639     2938    11.0 |     4576 |
21.89/21.91	c |      5132 |       0    6889    15178     2259     3566    18.3 |     4576 |
21.89/21.91	c |      6623 |       0    6939    15178     3700     4311    16.8 |     4576 |
21.89/21.91	c |      8373 |       0    6975    15178     2961     5186    11.9 |     4576 |
21.89/21.91	c |     10408 |       0    6997    15178     4974     6204    14.5 |     4576 |
21.89/21.91	c |     12756 |       0    7009    15178     7310     7378    16.8 |     4576 |
21.89/21.91	c |     15449 |       0    7040    15178     6253     8724    18.0 |     4576 |
21.89/21.91	c |     18521 |       0    7057    15178     9308    10260    20.9 |     4576 |
21.89/21.91	c |     22010 |       0    7073    15171     7172    12005    21.8 |     4575 |
21.89/21.91	c |     25958 |       0    7094    15171    11099    13979    23.6 |     4575 |
21.89/21.91	c |     30411 |       0    7109    15166    15535    16205    24.9 |     4574 |
21.89/21.91	c |     35419 |       0    7127    15166    12087    18709    22.5 |     4574 |
21.89/21.91	c |     41038 |       0    7138    15166    17695    21519    23.7 |     4574 |
21.89/21.91	c |     47329 |       0    7148    15166    23976    24664    24.0 |     4574 |
21.89/21.91	c |     54360 |       0    7155    15166    18330    26558    21.1 |     4574 |
21.89/21.91	c |     62205 |       0    7179    15166    26151    27451    22.2 |     4574 |
21.89/21.91	c |     70945 |       0    7190    15166    21081    28329    21.3 |     4574 |
21.89/21.91	c |     80669 |       0    7612    13985     9137    29215    15.0 |     4484 |
21.89/21.91	c |     91476 |       0    7655    13971    19898    29564    19.0 |     4482 |
21.89/21.91	c |    100170 |       0    7682    13971    28558    30230    19.6 |     3930 |
21.89/21.91	c ----- stats for thread 0 -----
21.89/21.91	c restarts: 309
21.89/21.91	c decisions: 192917
21.89/21.91	c propagations: 31685233
21.89/21.91	c conflicts: 100170
21.89/21.91	c 21.911s elapsed
21.89/21.91	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1719585-1240647602/watcher-1719585-1240647602 -o /tmp/evaluation-result-1719585-1240647602/solver-1719585-1240647602 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1719585-1240647602.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): 1800 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 1.03 1.02 3/64 26740
/proc/meminfo: memFree=1958848/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=3356 CPUtime=0
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 660 0 0 0 0 0 0 0 18 0 1 0 92794200 3436544 646 1992294400 134512640 135192793 4294956208 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 839 650 53 166 0 670 0

[startup+0.0444841 s]
/proc/loadavg: 1.00 1.03 1.02 3/64 26740
/proc/meminfo: memFree=1958848/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=7340 CPUtime=0.03
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 1537 0 0 0 3 0 0 0 18 0 1 0 92794200 7516160 1521 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 1835 1522 55 166 0 1666 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 7340

[startup+0.101489 s]
/proc/loadavg: 1.00 1.03 1.02 3/64 26740
/proc/meminfo: memFree=1958848/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=8000 CPUtime=0.09
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 1952 0 0 0 8 1 0 0 18 0 1 0 92794200 8192000 1738 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 2000 1738 56 166 0 1831 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8000

[startup+0.301508 s]
/proc/loadavg: 1.00 1.03 1.02 3/64 26740
/proc/meminfo: memFree=1958848/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=9740 CPUtime=0.29
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 2613 0 0 0 28 1 0 0 19 0 1 0 92794200 9973760 2198 1992294400 134512640 135192793 4294956208 18446744073709551615 134748366 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 2435 2198 56 166 0 2266 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9740

[startup+0.701548 s]
/proc/loadavg: 1.00 1.03 1.02 3/64 26740
/proc/meminfo: memFree=1958848/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=10980 CPUtime=0.69
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 2946 0 0 0 68 1 0 0 22 0 1 0 92794200 11243520 2531 1992294400 134512640 135192793 4294956208 18446744073709551615 134533776 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 2745 2531 73 166 0 2576 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10980

[startup+1.50163 s]
/proc/loadavg: 1.00 1.03 1.02 2/65 26741
/proc/meminfo: memFree=1948600/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=11640 CPUtime=1.49
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 3113 0 0 0 147 2 0 0 25 0 1 0 92794200 11919360 2698 1992294400 134512640 135192793 4294956208 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 2910 2698 73 166 0 2741 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 11640

[startup+3.10178 s]
/proc/loadavg: 1.00 1.03 1.01 2/65 26741
/proc/meminfo: memFree=1947576/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=13092 CPUtime=3.09
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 3478 0 0 0 307 2 0 0 25 0 1 0 92794200 13406208 3063 1992294400 134512640 135192793 4294956208 18446744073709551615 134550618 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 3273 3063 73 166 0 3104 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13092

[startup+6.3021 s]
/proc/loadavg: 1.00 1.03 1.01 2/65 26741
/proc/meminfo: memFree=1945016/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=14864 CPUtime=6.29
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 3896 0 0 0 627 2 0 0 25 0 1 0 92794200 15220736 3481 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 3716 3481 73 166 0 3547 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 14864

[startup+12.7017 s]
/proc/loadavg: 1.00 1.03 1.01 2/65 26741
/proc/meminfo: memFree=1942392/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=17600 CPUtime=12.69
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 4552 0 0 0 1266 3 0 0 25 0 1 0 92794200 18022400 4137 1992294400 134512640 135192793 4294956208 18446744073709551615 134534215 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 4400 4137 73 166 0 4231 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 17600

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

[startup+15.9011 s]
/proc/loadavg: 1.00 1.03 1.01 2/65 26741
/proc/meminfo: memFree=1942208/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=17732 CPUtime=15.89
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 4606 0 0 0 1586 3 0 0 25 0 1 0 92794200 18157568 4191 1992294400 134512640 135192793 4294956208 18446744073709551615 134534131 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 4433 4191 73 166 0 4264 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 17732

[startup+19.1014 s]
/proc/loadavg: 1.00 1.03 1.01 2/65 26741
/proc/meminfo: memFree=1942016/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=17996 CPUtime=19.09
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 4657 0 0 0 1906 3 0 0 25 0 1 0 92794200 18427904 4242 1992294400 134512640 135192793 4294956208 18446744073709551615 134534326 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 4499 4242 73 166 0 4330 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 17996

[startup+20.7015 s]
/proc/loadavg: 1.00 1.03 1.01 2/65 26741
/proc/meminfo: memFree=1941952/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=18132 CPUtime=20.69
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 4691 0 0 0 2066 3 0 0 25 0 1 0 92794200 18567168 4276 1992294400 134512640 135192793 4294956208 18446744073709551615 134533186 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 4533 4276 73 166 0 4364 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 18132

[startup+21.5016 s]
/proc/loadavg: 1.00 1.03 1.01 2/65 26741
/proc/meminfo: memFree=1941888/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=18284 CPUtime=21.49
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 4709 0 0 0 2146 3 0 0 25 0 1 0 92794200 18722816 4294 1992294400 134512640 135192793 4294956208 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 4571 4294 73 166 0 4402 0
Current children cumulated CPU time (s) 21.49
Current children cumulated vsize (KiB) 18284

[startup+21.9017 s]
/proc/loadavg: 1.00 1.03 1.01 2/65 26741
/proc/meminfo: memFree=1941696/2055920 swapFree=4192812/4192956
[pid=26740] ppid=26738 vsize=18432 CPUtime=21.89
/proc/26740/stat : 26740 (mxc-sat09) R 26738 26740 25988 0 -1 4194304 4738 0 0 0 2186 3 0 0 25 0 1 0 92794200 18874368 4323 1992294400 134512640 135192793 4294956208 18446744073709551615 134533367 0 0 4096 0 0 0 0 17 1 0 0
/proc/26740/statm: 4608 4323 73 166 0 4439 0
Current children cumulated CPU time (s) 21.89
Current children cumulated vsize (KiB) 18432

Child status: 20
Real time (s): 21.9166
CPU time (s): 21.9107
CPU user time (s): 21.8727
CPU system time (s): 0.037994
CPU usage (%): 99.9727
Max. virtual memory (cumulated for all children) (KiB): 18432

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.8727
system time used= 0.037994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4741
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= 2
involuntary context switches= 60

runsolver used 0.020996 second user time and 0.053991 second system time

The end

Launcher Data 

Begin job on node12 at 2009-04-25 10:20:02
IDJOB=1719585
IDBENCH=69566
IDSOLVER=504
FILE ID=node12/1719585-1240647602
PBS_JOBID= 9186407
Free space on /tmp= 66340 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT_RACE08/cnf/schup-l2s-abp4-1-k31.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1719585-1240647602/watcher-1719585-1240647602 -o /tmp/evaluation-result-1719585-1240647602/solver-1719585-1240647602 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1719585-1240647602.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 2ec4066bd8381455b1990aa40b382ff0
RANDOM SEED=290059163

node12.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.213
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		: 3000.213
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:       1959264 kB
Buffers:          1556 kB
Cached:          22108 kB
SwapCached:          0 kB
Active:          29240 kB
Inactive:         8340 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1959264 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1484 kB
Writeback:           0 kB
Mapped:          23704 kB
Slab:            45148 kB
Committed_AS:   411968 kB
PageTables:       1400 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= 66340 MiB
End job on node12 at 2009-04-25 10:20:24