Trace number 1553775

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 11.3713 11.3769

General information on the benchmark

NameAPPLICATIONS/bitverif/
minandmaxor/minandmaxor032.cnf
MD5SUM25c7914ccc82f6f574febbd03924feed
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark6.93994
Satisfiable
(Un)Satisfiability was proved
Number of variables16239
Number of clauses48332
Sum of the clauses size112772
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 232220
Number of clauses of size 316110
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

11.29/11.37	c starting MXC with:
11.29/11.37	c cnf_path = HOME/instance-1553775-1238718465.cnf
11.29/11.37	c restart_strategy = auto
11.29/11.37	c sign_strategy = cached
11.29/11.37	c use_preprocessing = -1
11.29/11.37	c output_implicant = 1
11.29/11.37	c timeout_seconds = 0
11.29/11.37	c running SatELite... done
11.29/11.37	c 11053 vars eliminated
11.29/11.37	c received 10 units and 25642 clauses from SatELite
11.29/11.37	c 11062 assignments made, starting to guess now
11.29/11.37	c ===================================[MXC]=====================================
11.29/11.37	c | Conflicts |                Clause Statistics                   |   Vars   |
11.29/11.37	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
11.29/11.37	c =============================================================================
11.29/11.37	c |         0 |       0    7180    18462        0        0     nan |    16239 |
11.29/11.37	c |       100 |       0    7185    18462       95     1050    36.2 |     5177 |
11.29/11.37	c |       210 |       0    7186    18462      204     1105    46.4 |     5177 |
11.29/11.37	c |       441 |       0    7188    18462      433     1220    43.6 |     5177 |
11.29/11.37	c |       805 |       0    7193    18462      792     1402    38.9 |     5177 |
11.29/11.37	c |      1315 |       0    7198    18462     1297     1657    37.6 |     5177 |
11.29/11.37	c |      1986 |       0    7207    18462     1959     1993    35.0 |     5177 |
11.29/11.37	c |      2834 |       0    7227    18462     1775     2417    28.7 |     5177 |
11.29/11.37	c |      3876 |       0    7229    18437     2756     2938    33.0 |     5176 |
11.29/11.37	c |      5132 |       0    7236    18437     2447     3566    39.5 |     5176 |
11.29/11.37	c |      6623 |       0    7238    18437     3936     4311    42.3 |     5176 |
11.29/11.37	c |      8373 |       0    7219    18436     3357     5186    43.0 |     5175 |
11.29/11.37	c |     10408 |       0    7223    18436     5388     6204    44.2 |     5175 |
11.29/11.37	c |     12756 |       0    7230    18436     4263     7378    40.0 |     5175 |
11.29/11.37	c |     15449 |       0    7233    18436     6953     8724    43.2 |     5175 |
11.29/11.37	c |     18521 |       0    7240    18436    10018    10260    45.1 |     5175 |
11.29/11.37	c |     22010 |       0    7250    18436     8291    12005    44.3 |     5175 |
11.29/11.37	c |     25958 |       0    7264    18379    12094    13979    48.5 |     5174 |
11.29/11.37	c |     30411 |       0    7273    18379     8601    16205    51.2 |     5174 |
11.29/11.37	c |     35419 |       0    7304    18379    13578    18709    48.8 |     5174 |
11.29/11.37	c |     41038 |       0    7308    18379    19193    21519    51.9 |     5174 |
11.29/11.37	c |     43866 |       0    7321    18379    22001    22933    50.8 |     3425 |
11.29/11.37	c ----- stats for thread 0 -----
11.29/11.37	c restarts: 204
11.29/11.37	c decisions: 308956
11.29/11.37	c propagations: 16035416
11.29/11.37	c conflicts: 43866
11.29/11.37	c 11.371s elapsed
11.29/11.37	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-1553775-1238718465/watcher-1553775-1238718465 -o /tmp/evaluation-result-1553775-1238718465/solver-1553775-1238718465 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1553775-1238718465.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: 0.92 0.98 1.04 3/64 20973
/proc/meminfo: memFree=1829032/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=3296 CPUtime=0
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 666 0 0 0 0 0 0 0 18 0 1 0 1144511736 3375104 652 1992294400 134512640 135192793 4294956208 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 824 654 53 166 0 655 0

[startup+0.106126 s]
/proc/loadavg: 0.92 0.98 1.04 3/64 20973
/proc/meminfo: memFree=1829032/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=8752 CPUtime=0.1
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 2126 0 0 0 9 1 0 0 18 0 1 0 1144511736 8962048 1927 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 2188 1927 56 166 0 2019 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 8752

[startup+0.201138 s]
/proc/loadavg: 0.92 0.98 1.04 3/64 20973
/proc/meminfo: memFree=1829032/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=10996 CPUtime=0.19
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 2738 0 0 0 18 1 0 0 18 0 1 0 1144511736 11259904 2539 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 2749 2539 56 166 0 2580 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 10996

[startup+0.301153 s]
/proc/loadavg: 0.92 0.98 1.04 3/64 20973
/proc/meminfo: memFree=1829032/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=11704 CPUtime=0.29
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 2897 0 0 0 28 1 0 0 19 0 1 0 1144511736 11984896 2698 1992294400 134512640 135192793 4294956208 18446744073709551615 134560269 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 2926 2698 56 166 0 2757 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11704

[startup+0.701211 s]
/proc/loadavg: 0.92 0.98 1.04 3/64 20973
/proc/meminfo: memFree=1829032/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=12652 CPUtime=0.69
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 3368 0 0 0 68 1 0 0 22 0 1 0 1144511736 12955648 2970 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 3163 2970 72 166 0 2994 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12652

[startup+1.50133 s]
/proc/loadavg: 0.92 0.98 1.04 2/65 20974
/proc/meminfo: memFree=1817064/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=13180 CPUtime=1.49
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 3515 0 0 0 148 1 0 0 25 0 1 0 1144511736 13496320 3117 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 3295 3117 73 166 0 3126 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 13180

[startup+3.10156 s]
/proc/loadavg: 0.92 0.98 1.04 2/65 20974
/proc/meminfo: memFree=1816040/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=14632 CPUtime=3.08
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 3887 0 0 0 307 1 0 0 25 0 1 0 1144511736 14983168 3489 1992294400 134512640 135192793 4294956208 18446744073709551615 134613017 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 3658 3489 73 166 0 3489 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 14632

[startup+6.30303 s]
/proc/loadavg: 0.93 0.98 1.04 2/65 20974
/proc/meminfo: memFree=1813488/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=17428 CPUtime=6.29
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 4560 0 0 0 627 2 0 0 25 0 1 0 1144511736 17846272 4162 1992294400 134512640 135192793 4294956208 18446744073709551615 134534170 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 4357 4162 73 166 0 4188 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 17428

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

[startup+6.40104 s]
/proc/loadavg: 0.93 0.98 1.04 2/65 20974
/proc/meminfo: memFree=1813488/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=17428 CPUtime=6.39
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 4582 0 0 0 637 2 0 0 25 0 1 0 1144511736 17846272 4184 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 4357 4184 73 166 0 4188 0
Current children cumulated CPU time (s) 6.39
Current children cumulated vsize (KiB) 17428

[startup+9.6015 s]
/proc/loadavg: 0.93 0.98 1.04 2/65 20974
/proc/meminfo: memFree=1810992/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=19220 CPUtime=9.59
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 4982 0 0 0 956 3 0 0 25 0 1 0 1144511736 19681280 4584 1992294400 134512640 135192793 4294956208 18446744073709551615 134533236 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 4805 4584 73 166 0 4636 0
Current children cumulated CPU time (s) 9.59
Current children cumulated vsize (KiB) 19220

[startup+10.4016 s]
/proc/loadavg: 0.93 0.98 1.04 2/65 20974
/proc/meminfo: memFree=1810352/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=20068 CPUtime=10.39
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 5194 0 0 0 1036 3 0 0 25 0 1 0 1144511736 20549632 4796 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 5017 4796 73 166 0 4848 0
Current children cumulated CPU time (s) 10.39
Current children cumulated vsize (KiB) 20068

[startup+10.8017 s]
/proc/loadavg: 0.93 0.98 1.04 2/65 20974
/proc/meminfo: memFree=1810352/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=20628 CPUtime=10.79
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 5306 0 0 0 1076 3 0 0 25 0 1 0 1144511736 21123072 4908 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 5157 4908 73 166 0 4988 0
Current children cumulated CPU time (s) 10.79
Current children cumulated vsize (KiB) 20628

[startup+11.2027 s]
/proc/loadavg: 0.93 0.98 1.04 2/65 20974
/proc/meminfo: memFree=1809200/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=21048 CPUtime=11.19
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 5406 0 0 0 1116 3 0 0 25 0 1 0 1144511736 21553152 5008 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 5262 5008 73 166 0 5093 0
Current children cumulated CPU time (s) 11.19
Current children cumulated vsize (KiB) 21048

[startup+11.3027 s]
/proc/loadavg: 0.93 0.98 1.04 2/65 20974
/proc/meminfo: memFree=1809200/2055920 swapFree=4175732/4192956
[pid=20973] ppid=20971 vsize=21200 CPUtime=11.29
/proc/20973/stat : 20973 (mxc-sat09) R 20971 20973 20477 0 -1 4194304 5442 0 0 0 1126 3 0 0 25 0 1 0 1144511736 21708800 5044 1992294400 134512640 135192793 4294956208 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/20973/statm: 5300 5044 73 166 0 5131 0
Current children cumulated CPU time (s) 11.29
Current children cumulated vsize (KiB) 21200

Child status: 20
Real time (s): 11.3769
CPU time (s): 11.3713
CPU user time (s): 11.3343
CPU system time (s): 0.036994
CPU usage (%): 99.9502
Max. virtual memory (cumulated for all children) (KiB): 21200

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.3343
system time used= 0.036994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5460
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= 15

runsolver used 0.013997 second user time and 0.035994 second system time

The end

Launcher Data 

Begin job on node30 at 2009-04-03 02:27:45
IDJOB=1553775
IDBENCH=70768
IDSOLVER=504
FILE ID=node30/1553775-1238718465
PBS_JOBID= 9085316
Free space on /tmp= 66340 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/APPLICATIONS/bitverif/minandmaxor/minandmaxor032.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553775-1238718465/watcher-1553775-1238718465 -o /tmp/evaluation-result-1553775-1238718465/solver-1553775-1238718465 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1553775-1238718465.cnf

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

MD5SUM BENCH= 25c7914ccc82f6f574febbd03924feed
RANDOM SEED=1223295238

node30.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		: 3000.260
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	: 5931.00
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		: 3000.260
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:       1829448 kB
Buffers:         45968 kB
Cached:          88636 kB
SwapCached:      11052 kB
Active:          13832 kB
Inactive:       133820 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1829448 kB
SwapTotal:     4192956 kB
SwapFree:      4175732 kB
Dirty:            1424 kB
Writeback:           0 kB
Mapped:          18688 kB
Slab:            64908 kB
Committed_AS:  3375128 kB
PageTables:       1368 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= 66336 MiB
End job on node30 at 2009-04-03 02:27:57