Trace number 311523

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
minimarch 2007-02-08SAT 7.51186 7.51652

General information on the benchmark

Namerandom/2+p/p0.8/v2035/
unif2p-p0.8-v2035-c6328-S668297284-15-SAT.cnf
MD5SUM4d15e4ef1977463310683c8d04611f9d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.433933
Satisfiable
(Un)Satisfiability was proved
Number of variables2035
Number of clauses6327
Sum of the clauses size17716
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21265
Number of clauses of size 35062
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	This is MiniMarch, a modified version of MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  2035                                                 |
0.00/0.00	|  Number of clauses:    6327                                                 |
0.00/0.01	|  Parsing time:         0.01         s                                       |
0.00/0.03	============================[ Search Statistics ]==============================
0.00/0.03	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.03	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.03	===============================================================================
0.00/0.03	|         0 |    1680     5746    17196 |     1915        0    nan |  0.000 % |
0.00/0.04	|       100 |    1680     5746    17196 |     2106      100     20 |  0.000 % |
0.00/0.05	|       251 |    1680     5746    17196 |     2317      251     22 |  0.000 % |
0.00/0.07	|       477 |    1680     5746    17196 |     2549      477     22 |  0.000 % |
0.10/0.10	|       816 |    1680     5746    17196 |     2804      816     21 |  0.000 % |
0.10/0.15	|      1323 |    1680     5746    17196 |     3084     1323     23 |  0.000 % |
0.20/0.23	|      2082 |    1680     5746    17196 |     3393     2082     23 |  0.000 % |
0.30/0.35	|      3222 |    1680     5746    17196 |     3732     3222     24 |  0.000 % |
0.51/0.54	|      4930 |    1680     5746    17196 |     4105     2997     21 |  0.000 % |
0.81/0.84	|      7492 |    1680     5746    17196 |     4516     3415     22 |  0.000 % |
1.33/1.34	|     11336 |    1680     5746    17196 |     4967     2481     25 |  0.000 % |
2.04/2.10	|     17103 |    1680     5746    17196 |     5464     3124     24 |  0.000 % |
3.27/3.34	|     25753 |    1680     5746    17196 |     6011     3251     25 |  0.000 % |
5.21/5.28	|     38727 |    1680     5746    17196 |     6612     3752     27 |  0.000 % |
7.47/7.51	===============================================================================
7.47/7.51	lookaheads            : 59210
7.47/7.51	variable balance      : 0.00
7.47/7.51	restarts              : 14
7.47/7.51	conflicts             : 54136          (7214 /sec)
7.47/7.51	decisions             : 59211          (1.67 % random) (7891 /sec)
7.47/7.51	decision = positive   : 29414
7.47/7.51	decision = negative   : 29796
7.47/7.51	propagations          : 12427906       (1656202 /sec)
7.47/7.51	conflict literals     : 1471863        (35.70 % deleted)
7.47/7.51	Memory used           : 3.49 MB
7.47/7.51	CPU time              : 7.50386 s
7.47/7.51	
7.47/7.51	s SATISFIABLE
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-2023 -2024 -2025 2026 2027 2028 2029 2030 2031 -2032 -2033 2034 -2035 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node25/watcher-311523-1172571315 -o ROOT/results/node25/solver-311523-1172571315 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311523-1172571315/minimarch /tmp/evaluation/311523-1172571315/instance-311523-1172571315.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: 0.95 0.98 0.99 3/64 11371
/proc/meminfo: memFree=1816864/2055920 swapFree=4183552/4192956
[pid=11371] ppid=11369 vsize=2136 CPUtime=0
/proc/11371/stat : 11371 (minimarch) R 11369 11371 11188 0 -1 4194304 208 0 0 0 0 0 0 0 18 0 1 0 51753736 2187264 192 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134533283 0 0 4096 3 0 0 0 17 1 0 0
/proc/11371/statm: 534 192 51 132 0 399 0

[startup+0.106378 s]
/proc/loadavg: 0.95 0.98 0.99 3/64 11371
/proc/meminfo: memFree=1816864/2055920 swapFree=4183552/4192956
[pid=11371] ppid=11369 vsize=2504 CPUtime=0.1
/proc/11371/stat : 11371 (minimarch) R 11369 11371 11188 0 -1 4194304 318 0 0 0 10 0 0 0 18 0 1 0 51753736 2564096 302 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551210 0 0 4096 3 0 0 0 17 1 0 0
/proc/11371/statm: 626 302 66 132 0 491 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2504

[startup+0.514414 s]
/proc/loadavg: 0.95 0.98 0.99 3/64 11371
/proc/meminfo: memFree=1816864/2055920 swapFree=4183552/4192956
[pid=11371] ppid=11369 vsize=2780 CPUtime=0.51
/proc/11371/stat : 11371 (minimarch) R 11369 11371 11188 0 -1 4194304 378 0 0 0 51 0 0 0 21 0 1 0 51753736 2846720 362 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134552386 0 0 4096 3 0 0 0 17 1 0 0
/proc/11371/statm: 695 362 66 132 0 560 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2780

[startup+1.33449 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 11372
/proc/meminfo: memFree=1815448/2055920 swapFree=4183552/4192956
[pid=11371] ppid=11369 vsize=3044 CPUtime=1.33
/proc/11371/stat : 11371 (minimarch) R 11369 11371 11188 0 -1 4194304 446 0 0 0 133 0 0 0 25 0 1 0 51753736 3117056 430 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551345 0 0 4096 3 0 0 0 17 1 0 0
/proc/11371/statm: 761 430 66 132 0 626 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3044

[startup+2.97063 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 11372
/proc/meminfo: memFree=1815128/2055920 swapFree=4183552/4192956
[pid=11371] ppid=11369 vsize=3308 CPUtime=2.96
/proc/11371/stat : 11371 (minimarch) R 11369 11371 11188 0 -1 4194304 504 0 0 0 296 0 0 0 25 0 1 0 51753736 3387392 488 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551703 0 0 4096 3 0 0 0 17 1 0 0
/proc/11371/statm: 827 488 66 132 0 692 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 3308

[startup+6.25193 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 11372
/proc/meminfo: memFree=1814744/2055920 swapFree=4183552/4192956
[pid=11371] ppid=11369 vsize=3440 CPUtime=6.24
/proc/11371/stat : 11371 (minimarch) R 11369 11371 11188 0 -1 4194304 566 0 0 0 624 0 0 0 25 0 1 0 51753736 3522560 550 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551262 0 0 4096 3 0 0 0 17 1 0 0
/proc/11371/statm: 860 550 66 132 0 725 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 3440

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

[startup+6.55796 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 11372
/proc/meminfo: memFree=1814744/2055920 swapFree=4183552/4192956
[pid=11371] ppid=11369 vsize=3440 CPUtime=6.54
/proc/11371/stat : 11371 (minimarch) R 11369 11371 11188 0 -1 4194304 566 0 0 0 654 0 0 0 25 0 1 0 51753736 3522560 550 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551291 0 0 4096 3 0 0 0 17 1 0 0
/proc/11371/statm: 860 550 66 132 0 725 0
Current children cumulated CPU time (s) 6.54
Current children cumulated vsize (KiB) 3440

[startup+6.97 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 11372
/proc/meminfo: memFree=1814680/2055920 swapFree=4183552/4192956
[pid=11371] ppid=11369 vsize=3572 CPUtime=6.96
/proc/11371/stat : 11371 (minimarch) R 11369 11371 11188 0 -1 4194304 572 0 0 0 696 0 0 0 25 0 1 0 51753736 3657728 556 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551716 0 0 4096 3 0 0 0 17 1 0 0
/proc/11371/statm: 893 556 66 132 0 758 0
Current children cumulated CPU time (s) 6.96
Current children cumulated vsize (KiB) 3572

[startup+7.37803 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 11372
/proc/meminfo: memFree=1814680/2055920 swapFree=4183552/4192956
[pid=11371] ppid=11369 vsize=3572 CPUtime=7.36
/proc/11371/stat : 11371 (minimarch) R 11369 11371 11188 0 -1 4194304 578 0 0 0 736 0 0 0 25 0 1 0 51753736 3657728 562 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551352 0 0 4096 3 0 0 0 17 1 0 0
/proc/11371/statm: 893 562 66 132 0 758 0
Current children cumulated CPU time (s) 7.36
Current children cumulated vsize (KiB) 3572

[startup+7.48004 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 11372
/proc/meminfo: memFree=1814680/2055920 swapFree=4183552/4192956
[pid=11371] ppid=11369 vsize=3572 CPUtime=7.47
/proc/11371/stat : 11371 (minimarch) R 11369 11371 11188 0 -1 4194304 579 0 0 0 747 0 0 0 25 0 1 0 51753736 3657728 563 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551420 0 0 4096 3 0 0 0 17 1 0 0
/proc/11371/statm: 893 563 66 132 0 758 0
Current children cumulated CPU time (s) 7.47
Current children cumulated vsize (KiB) 3572

Child status: 10
Real time (s): 7.51652
CPU time (s): 7.51186
CPU user time (s): 7.50486
CPU system time (s): 0.006998
CPU usage (%): 99.9379
Max. virtual memory (cumulated for all children) (KiB): 3572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.50486
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= 588
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= 12

runsolver used 0.004999 second user time and 0.022996 second system time

The end

Launcher Data (download as text)

Begin job on node25 on Tue Feb 27 10:15:15 UTC 2007

IDJOB= 311523
IDBENCH= 20316
IDSOLVER= 110
FILE ID= node25/311523-1172571315

PBS_JOBID= 3971913

Free space on /tmp= 66558 MiB

SOLVER NAME= minimarch 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v2035/unif2p-p0.8-v2035-c6328-S668297284-15-SAT.cnf
COMMAND LINE= /tmp/evaluation/311523-1172571315/minimarch /tmp/evaluation/311523-1172571315/instance-311523-1172571315.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-311523-1172571315 -o ROOT/results/node25/solver-311523-1172571315 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311523-1172571315/minimarch /tmp/evaluation/311523-1172571315/instance-311523-1172571315.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  4d15e4ef1977463310683c8d04611f9d

RANDOM SEED= 276014388

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node25.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		: 3000.232
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		: 3000.232
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:       1817272 kB
Buffers:         32444 kB
Cached:         158428 kB
SwapCached:       3676 kB
Active:          98912 kB
Inactive:       101972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1817272 kB
SwapTotal:     4192956 kB
SwapFree:      4183552 kB
Dirty:            2684 kB
Writeback:           0 kB
Mapped:          15408 kB
Slab:            23776 kB
Committed_AS:   127360 kB
PageTables:       1472 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= 66558 MiB

End job on node25 on Tue Feb 27 10:15:23 UTC 2007