Trace number 310700

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
MXC 2007-02-08UNSAT 61.0427 61.077

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S702278147-14-UNSAT.cnf
MD5SUM1db2498a7e6d8ef104366dc61af40976
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark6.04308
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

61.01/61.07	c MXC attempting /tmp/evaluation/310700-1172561065/instance-310700-1172561065.cnf
61.01/61.07	c 0 assignments made, starting to guess now
61.01/61.07	c ===================================[MXC]=====================================
61.01/61.07	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
61.01/61.07	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
61.01/61.07	c =============================================================================
61.01/61.07	c |         0 |    2052     6156 |    1000       0       0     nan |  0.000 % |
61.01/61.07	c |       101 |    2052     6156 |    1100      99    1617    16.3 |  0.000 % |
61.01/61.07	c |       251 |    2052     6156 |    1210     248    3877    15.6 |  0.000 % |
61.01/61.07	c |       476 |    2052     6156 |    1331     473    7477    15.8 |  0.000 % |
61.01/61.07	c |       814 |    2052     6156 |    1464     811   13154    16.2 |  0.000 % |
61.01/61.07	c |      1320 |    2052     6156 |    1610    1317   22064    16.8 |  0.000 % |
61.01/61.07	c |      2079 |    2052     6156 |    1771    1269   21992    17.3 |  0.000 % |
61.01/61.07	c |      3218 |    2052     6156 |    1948    1522   28104    18.5 |  0.000 % |
61.01/61.07	c |      4927 |    2052     6156 |    2143    1282   22873    17.8 |  0.000 % |
61.01/61.07	c |      7492 |    2052     6156 |    2357    1704   27114    15.9 |  0.000 % |
61.01/61.07	c |     11336 |    2052     6156 |    2593    2023   34938    17.3 |  0.000 % |
61.01/61.07	c |     17102 |    2052     6156 |    2853    1308   19885    15.2 |  0.000 % |
61.01/61.07	c |     25753 |    2052     6156 |    3138    2828   45822    16.2 |  0.000 % |
61.01/61.07	c |     38727 |    2052     6156 |    3452    1684   26022    15.5 |  0.000 % |
61.01/61.07	c |     58188 |    2052     6156 |    3797    2165   34810    16.1 |  0.000 % |
61.01/61.07	c |     87380 |    2052     6156 |    4177    2905   51160    17.6 |  0.000 % |
61.01/61.07	c |    131172 |    2052     6156 |    4594    2881   47904    16.6 |  0.000 % |
61.01/61.07	c |    196856 |    2052     6156 |    5054    4279   75059    17.5 |  0.000 % |
61.01/61.07	c |    295382 |    2052     6156 |    5559    4325   78019    18.0 |  0.000 % |
61.01/61.07	c |    443171 |    2052     6156 |    6115    4869   77793    16.0 |  0.000 % |
61.01/61.07	c |    664854 |    2015     6045 |    6727    3401   47734    14.0 |  0.476 % |
61.01/61.07	c 61.040s elapsed
61.01/61.07	c restarts: 20
61.01/61.07	c decisions: 940981
61.01/61.07	c propagations: 72339725
61.01/61.07	c conflicts: 790493
61.01/61.07	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node65/watcher-310700-1172561065 -o ROOT/results/node65/solver-310700-1172561065 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310700-1172561065/mxc /tmp/evaluation/310700-1172561065/instance-310700-1172561065.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 1.03 0.99 0.99 3/64 23856
/proc/meminfo: memFree=1829696/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=1064 CPUtime=0
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 276064020 1089536 119 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134535338 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 266 119 57 122 0 140 0

[startup+0.107026 s]
/proc/loadavg: 1.03 0.99 0.99 3/64 23856
/proc/meminfo: memFree=1829696/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=1204 CPUtime=0.1
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 188 0 0 0 10 0 0 0 18 0 1 0 276064020 1232896 170 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519619 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 301 170 67 122 0 175 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1204

[startup+0.515091 s]
/proc/loadavg: 1.03 0.99 0.99 3/64 23856
/proc/meminfo: memFree=1829696/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=1456 CPUtime=0.51
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 228 0 0 0 51 0 0 0 21 0 1 0 276064020 1490944 210 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 364 210 67 122 0 238 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1456

[startup+1.33522 s]
/proc/loadavg: 1.03 0.99 0.99 2/65 23857
/proc/meminfo: memFree=1828984/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=1456 CPUtime=1.33
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 257 0 0 0 133 0 0 0 25 0 1 0 276064020 1490944 239 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519987 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 364 239 67 122 0 238 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1456

[startup+2.97149 s]
/proc/loadavg: 1.03 0.99 0.99 2/65 23857
/proc/meminfo: memFree=1828792/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=1708 CPUtime=2.96
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 293 0 0 0 296 0 0 0 25 0 1 0 276064020 1748992 275 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519599 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 427 275 67 122 0 301 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 1708

[startup+6.25003 s]
/proc/loadavg: 1.03 0.99 0.99 2/65 23857
/proc/meminfo: memFree=1828480/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=1824 CPUtime=6.24
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 343 0 0 0 624 0 0 0 25 0 1 0 276064020 1867776 325 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519258 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 456 325 67 122 0 330 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 1824

[startup+12.7031 s]
/proc/loadavg: 1.03 0.99 0.99 2/65 23857
/proc/meminfo: memFree=1828232/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=2064 CPUtime=12.69
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 386 0 0 0 1269 0 0 0 25 0 1 0 276064020 2113536 368 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519251 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 516 368 67 122 0 390 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2064

[startup+25.5072 s]
/proc/loadavg: 1.02 0.99 0.99 2/65 23857
/proc/meminfo: memFree=1827912/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=2304 CPUtime=25.49
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 462 0 0 0 2549 0 0 0 25 0 1 0 276064020 2359296 444 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519605 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 576 444 67 122 0 450 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 2304

[startup+51.1114 s]
/proc/loadavg: 1.01 0.99 0.99 2/65 23857
/proc/meminfo: memFree=1827720/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=2628 CPUtime=51.08
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 525 0 0 0 5108 0 0 0 25 0 1 0 276064020 2691072 507 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134529869 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 657 507 67 122 0 531 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 2628

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

[startup+52.4416 s]
/proc/loadavg: 1.01 0.99 0.99 2/65 23857
/proc/meminfo: memFree=1827592/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=2628 CPUtime=52.41
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 539 0 0 0 5241 0 0 0 25 0 1 0 276064020 2691072 521 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530564 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 657 521 67 122 0 531 0
Current children cumulated CPU time (s) 52.41
Current children cumulated vsize (KiB) 2628

[startup+55.7201 s]
/proc/loadavg: 1.01 0.99 0.99 2/65 23857
/proc/meminfo: memFree=1827592/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=2628 CPUtime=55.69
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 542 0 0 0 5569 0 0 0 25 0 1 0 276064020 2691072 524 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134531397 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 657 524 67 122 0 531 0
Current children cumulated CPU time (s) 55.69
Current children cumulated vsize (KiB) 2628

[startup+58.9967 s]
/proc/loadavg: 1.01 0.99 0.99 2/65 23857
/proc/meminfo: memFree=1827592/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=2628 CPUtime=58.97
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 546 0 0 0 5897 0 0 0 25 0 1 0 276064020 2691072 528 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 657 528 67 122 0 531 0
Current children cumulated CPU time (s) 58.97
Current children cumulated vsize (KiB) 2628

[startup+59.8178 s]
/proc/loadavg: 1.01 0.99 0.99 2/65 23857
/proc/meminfo: memFree=1827528/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=2628 CPUtime=59.79
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 550 0 0 0 5979 0 0 0 25 0 1 0 276064020 2691072 532 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134535052 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 657 532 67 122 0 531 0
Current children cumulated CPU time (s) 59.79
Current children cumulated vsize (KiB) 2628

[startup+60.634 s]
/proc/loadavg: 1.01 0.99 0.99 2/65 23857
/proc/meminfo: memFree=1827528/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=2628 CPUtime=60.6
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 550 0 0 0 6060 0 0 0 25 0 1 0 276064020 2691072 532 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519261 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 657 532 67 122 0 531 0
Current children cumulated CPU time (s) 60.6
Current children cumulated vsize (KiB) 2628

[startup+61.046 s]
/proc/loadavg: 1.01 0.99 0.99 2/65 23857
/proc/meminfo: memFree=1827528/2055920 swapFree=4172316/4192956
[pid=23856] ppid=23854 vsize=2736 CPUtime=61.01
/proc/23856/stat : 23856 (mxc) R 23854 23856 23197 0 -1 4194304 552 0 0 0 6101 0 0 0 25 0 1 0 276064020 2801664 534 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519987 0 0 4096 0 0 0 0 17 1 0 0
/proc/23856/statm: 684 534 67 122 0 558 0
Current children cumulated CPU time (s) 61.01
Current children cumulated vsize (KiB) 2736

Child status: 20
Real time (s): 61.077
CPU time (s): 61.0427
CPU user time (s): 61.0357
CPU system time (s): 0.006998
CPU usage (%): 99.944
Max. virtual memory (cumulated for all children) (KiB): 2736

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 61.0357
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 553
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= 9
involuntary context switches= 45

runsolver used 0.036994 second user time and 0.134979 second system time

The end

Launcher Data (download as text)

Begin job on node65 on Tue Feb 27 07:24:25 UTC 2007

IDJOB= 310700
IDBENCH= 20294
IDSOLVER= 107
FILE ID= node65/310700-1172561065

PBS_JOBID= 3971881

Free space on /tmp= 66561 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S702278147-14-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310700-1172561065/mxc /tmp/evaluation/310700-1172561065/instance-310700-1172561065.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node65/watcher-310700-1172561065 -o ROOT/results/node65/solver-310700-1172561065 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310700-1172561065/mxc /tmp/evaluation/310700-1172561065/instance-310700-1172561065.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  1db2498a7e6d8ef104366dc61af40976

RANDOM SEED= 641306378

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node65.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		: 3000.259
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		: 3000.259
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:       1830168 kB
Buffers:         29712 kB
Cached:         136924 kB
SwapCached:      14924 kB
Active:          79140 kB
Inactive:       109080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1830168 kB
SwapTotal:     4192956 kB
SwapFree:      4172316 kB
Dirty:             620 kB
Writeback:           0 kB
Mapped:          15396 kB
Slab:            23576 kB
Committed_AS:   651560 kB
PageTables:       1456 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= 66561 MiB

End job on node65 on Tue Feb 27 07:25:26 UTC 2007