Trace number 1720105

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 19.962 19.9677

General information on the benchmark

Namevelev-engi-uns-1.0-4nd.cnf
MD5SUM700f8e86139a93fca212e22efa0f7d2b
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark16.1565
Satisfiable
(Un)Satisfiability was proved
Number of variables7000
Number of clauses67586
Sum of the clauses size190944
Maximum clause length58
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 256649
Number of clauses of size 35901
Number of clauses of size 4437
Number of clauses of size 5591
Number of clauses of size over 54007

Solver Data 

19.88/19.96	c starting MXC with:
19.88/19.96	c cnf_path = HOME/instance-1720105-1240652791.cnf
19.88/19.96	c restart_strategy = auto
19.88/19.96	c sign_strategy = cached
19.88/19.96	c use_preprocessing = -1
19.88/19.96	c output_implicant = 1
19.88/19.96	c timeout_seconds = 0
19.88/19.96	c running SatELite... done
19.88/19.96	c 1857 vars eliminated
19.88/19.96	c received 88 units and 62306 clauses from SatELite
19.88/19.96	c 1944 assignments made, starting to guess now
19.88/19.96	c ===================================[MXC]=====================================
19.88/19.96	c | Conflicts |                Clause Statistics                   |   Vars   |
19.88/19.96	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
19.88/19.96	c =============================================================================
19.88/19.96	c |         0 |       0   47009    15297        0        0     nan |     7000 |
19.88/19.96	c |       100 |       0   46513    15108       88     1050    23.5 |     5009 |
19.88/19.96	c |       210 |       0   46513    15108      198     1105    26.0 |     5009 |
19.88/19.96	c |       441 |       0   46514    15108      428     1220    27.5 |     5009 |
19.88/19.96	c |       805 |       0   46518    15108      788     1402    26.7 |     5009 |
19.88/19.96	c |      1315 |       0   46520    15108     1296     1657    29.1 |     5009 |
19.88/19.96	c |      1986 |       0   46524    15108     1963     1993    29.8 |     5009 |
19.88/19.96	c |      2834 |       0   46528    15107     1785     2417    26.7 |     5008 |
19.88/19.96	c |      3876 |       0   46537    15107     2818     2938    28.7 |     5008 |
19.88/19.96	c |      5132 |       0   46543    15107     2544     3566    29.8 |     5008 |
19.88/19.96	c |      6623 |       0   46548    15107     4030     4311    30.5 |     5008 |
19.88/19.96	c |      8373 |       0   46552    15107     3486     5186    31.1 |     5008 |
19.88/19.96	c |     10408 |       0   46556    15107     5517     6204    30.6 |     5008 |
19.88/19.96	c |     12756 |       0   46558    15107     4430     7378    29.4 |     5008 |
19.88/19.96	c |     15449 |       0   46561    15107     7120     8724    29.9 |     5008 |
19.88/19.96	c |     18521 |       0   46568    15107    10185    10260    30.3 |     5008 |
19.88/19.96	c |     22010 |       0   46572    15107     8504    12005    30.7 |     5008 |
19.88/19.96	c |     25958 |       0   46575    15107    12449    13979    29.9 |     5008 |
19.88/19.96	c |     30411 |       0   46582    15107     9140    16205    29.0 |     5008 |
19.88/19.96	c |     35419 |       0   46604    15107    14126    18709    32.7 |     5008 |
19.88/19.96	c |     41038 |       0   46600    15107    19731    21519    33.4 |     5007 |
19.88/19.96	c |     47329 |       0   46607    15107    14366    24664    31.4 |     5007 |
19.88/19.96	c |     54360 |       0   46611    15107    21393    28180    32.5 |     5007 |
19.88/19.96	c |     62205 |       0   46611    15107    29238    32102    33.7 |     5007 |
19.88/19.96	c |     70945 |       0   46590    15107    20491    36472    32.9 |     5005 |
19.88/19.96	c |     80669 |       0   46587    15107    30203    41334    35.0 |     5004 |
19.88/19.96	c |     91476 |       0   46562    15107    40997    46738    35.5 |     5001 |
19.88/19.96	c |    100272 |       0   46593    15107    49747    51136    35.9 |      776 |
19.88/19.96	c ----- stats for thread 0 -----
19.88/19.96	c restarts: 349
19.88/19.96	c decisions: 174098
19.88/19.96	c propagations: 32289042
19.88/19.96	c conflicts: 100272
19.88/19.96	c 19.961s elapsed
19.88/19.96	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-1720105-1240652791/watcher-1720105-1240652791 -o /tmp/evaluation-result-1720105-1240652791/solver-1720105-1240652791 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1720105-1240652791.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: 1.04 1.04 1.10 3/67 3007
/proc/meminfo: memFree=1730080/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=3248 CPUtime=0
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 647 0 0 0 0 0 0 0 18 0 1 0 93305317 3325952 633 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 812 640 53 166 0 643 0

[startup+0.0110511 s]
/proc/loadavg: 1.04 1.04 1.10 3/67 3007
/proc/meminfo: memFree=1730080/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=3736 CPUtime=0
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 773 0 0 0 0 0 0 0 18 0 1 0 93305317 3825664 759 1992294400 134512640 135192793 4294956208 18446744073709551615 134752660 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 934 759 54 166 0 765 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 3736

[startup+0.101059 s]
/proc/loadavg: 1.04 1.04 1.10 3/67 3007
/proc/meminfo: memFree=1730080/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=6500 CPUtime=0.09
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 1679 0 0 0 8 1 0 0 18 0 1 0 93305317 6656000 1392 1992294400 134512640 135192793 4294956208 18446744073709551615 134568030 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 1625 1392 56 166 0 1456 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6500

[startup+0.301075 s]
/proc/loadavg: 1.04 1.04 1.10 3/67 3007
/proc/meminfo: memFree=1730080/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=8400 CPUtime=0.29
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 2143 0 0 0 28 1 0 0 19 0 1 0 93305317 8601600 1856 1992294400 134512640 135192793 4294956208 18446744073709551615 134573456 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 2100 1856 56 166 0 1931 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8400

[startup+0.701111 s]
/proc/loadavg: 1.04 1.04 1.10 3/67 3007
/proc/meminfo: memFree=1730080/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=9568 CPUtime=0.69
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 2680 0 0 0 68 1 0 0 22 0 1 0 93305317 9797632 2227 1992294400 134512640 135192793 4294956208 18446744073709551615 134534128 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 2392 2227 73 166 0 2223 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9568

[startup+1.50118 s]
/proc/loadavg: 1.04 1.04 1.10 2/68 3008
/proc/meminfo: memFree=1720984/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=10368 CPUtime=1.49
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 2880 0 0 0 148 1 0 0 25 0 1 0 93305317 10616832 2427 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 2592 2427 73 166 0 2423 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10368

[startup+3.10133 s]
/proc/loadavg: 1.04 1.04 1.10 2/68 3008
/proc/meminfo: memFree=1719768/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=11976 CPUtime=3.09
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 3269 0 0 0 307 2 0 0 25 0 1 0 93305317 12263424 2816 1992294400 134512640 135192793 4294956208 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 2994 2816 73 166 0 2825 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 11976

[startup+6.30161 s]
/proc/loadavg: 1.04 1.04 1.10 2/68 3008
/proc/meminfo: memFree=1717336/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=14008 CPUtime=6.29
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 3766 0 0 0 627 2 0 0 25 0 1 0 93305317 14344192 3313 1992294400 134512640 135192793 4294956208 18446744073709551615 134534215 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 3502 3313 73 166 0 3333 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 14008

[startup+12.7012 s]
/proc/loadavg: 1.03 1.04 1.10 2/68 3008
/proc/meminfo: memFree=1711576/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=19396 CPUtime=12.68
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 5077 0 0 0 1265 3 0 0 25 0 1 0 93305317 19861504 4624 1992294400 134512640 135192793 4294956208 18446744073709551615 134534128 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 4849 4624 73 166 0 4680 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 19396

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

[startup+15.9015 s]
/proc/loadavg: 1.03 1.04 1.10 2/68 3008
/proc/meminfo: memFree=1711192/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=20032 CPUtime=15.89
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 5192 0 0 0 1585 4 0 0 25 0 1 0 93305317 20512768 4739 1992294400 134512640 135192793 4294956208 18446744073709551615 134533139 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 5008 4739 73 166 0 4839 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 20032

[startup+17.5016 s]
/proc/loadavg: 1.03 1.04 1.10 2/68 3008
/proc/meminfo: memFree=1709336/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=21900 CPUtime=17.49
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 5624 0 0 0 1745 4 0 0 25 0 1 0 93305317 22425600 5171 1992294400 134512640 135192793 4294956208 18446744073709551615 134551900 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 5475 5171 73 166 0 5306 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 21900

[startup+19.1018 s]
/proc/loadavg: 1.03 1.04 1.10 2/68 3008
/proc/meminfo: memFree=1708312/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=23348 CPUtime=19.08
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 6003 0 0 0 1904 4 0 0 25 0 1 0 93305317 23908352 5550 1992294400 134512640 135192793 4294956208 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 5837 5550 73 166 0 5668 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 23348

[startup+19.5018 s]
/proc/loadavg: 1.03 1.04 1.10 2/68 3008
/proc/meminfo: memFree=1708312/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=23612 CPUtime=19.48
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 6087 0 0 0 1944 4 0 0 25 0 1 0 93305317 24178688 5634 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 5903 5634 73 166 0 5734 0
Current children cumulated CPU time (s) 19.48
Current children cumulated vsize (KiB) 23612

[startup+19.9018 s]
/proc/loadavg: 1.03 1.04 1.10 2/68 3008
/proc/meminfo: memFree=1707352/2055920 swapFree=4192956/4192956
[pid=3007] ppid=3005 vsize=23944 CPUtime=19.88
/proc/3007/stat : 3007 (mxc-sat09) R 3005 3007 2848 0 -1 4194304 6153 0 0 0 1984 4 0 0 25 0 1 0 93305317 24518656 5700 1992294400 134512640 135192793 4294956208 18446744073709551615 134533849 0 0 4096 0 0 0 0 17 1 0 0
/proc/3007/statm: 5986 5700 73 166 0 5817 0
Current children cumulated CPU time (s) 19.88
Current children cumulated vsize (KiB) 23944

Child status: 20
Real time (s): 19.9677
CPU time (s): 19.962
CPU user time (s): 19.909
CPU system time (s): 0.052991
CPU usage (%): 99.9711
Max. virtual memory (cumulated for all children) (KiB): 23944

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.909
system time used= 0.052991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6162
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= 26

runsolver used 0.021996 second user time and 0.06199 second system time

The end

Launcher Data 

Begin job on node68 at 2009-04-25 11:46:32
IDJOB=1720105
IDBENCH=69594
IDSOLVER=504
FILE ID=node68/1720105-1240652791
PBS_JOBID= 9186526
Free space on /tmp= 66556 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT_RACE08/cnf/velev-engi-uns-1.0-4nd.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1720105-1240652791/watcher-1720105-1240652791 -o /tmp/evaluation-result-1720105-1240652791/solver-1720105-1240652791 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1720105-1240652791.cnf

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

MD5SUM BENCH= 700f8e86139a93fca212e22efa0f7d2b
RANDOM SEED=2037017067

node68.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		: 3000.223
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		: 3000.223
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:       1730496 kB
Buffers:         39008 kB
Cached:         192872 kB
SwapCached:          0 kB
Active:          38380 kB
Inactive:       209884 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1730496 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1776 kB
Writeback:           0 kB
Mapped:          26400 kB
Slab:            62760 kB
Committed_AS:   229056 kB
PageTables:       1560 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66556 MiB
End job on node68 at 2009-04-25 11:46:52