Trace number 427281

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 2007-04-26 (fixed)SAT 6.602 6.60433

General information on the benchmark

Namerandom/OnTreshold/7SAT/v50/
unif-k7-r89-v50-c4450-S1718130589-01.SAT.shuffled.cnf
MD5SUM92a81fb7daa035c842fe0ed87fafd083
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.411936
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses4450
Sum of the clauses size31150
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 54450

Solver Data (download as text)

0.00/0.00	This is MiniMarch 1.1, 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:  50                                                   |
0.00/0.00	|  Number of clauses:    4450                                                 |
0.00/0.01	|  Parsing time:         0.02         s                                       |
0.09/0.15	============================[ Search Statistics ]==============================
0.09/0.15	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.09/0.15	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.09/0.15	===============================================================================
0.09/0.15	|         0 |      50     4450    31150 |     1483        0    nan |  0.000 % |
0.09/0.16	|       100 |      50     4450    31150 |     1631      100     20 |  0.041 % |
0.09/0.16	|       250 |      50     4450    31150 |     1794      250     20 |  0.041 % |
0.09/0.17	|       476 |      50     4450    31150 |     1974      476     19 |  0.041 % |
0.09/0.19	|       813 |      50     4450    31150 |     2171      813     19 |  0.041 % |
0.19/0.21	|      1320 |      50     4450    31150 |     2388     1320     19 |  0.041 % |
0.19/0.24	|      2079 |      50     4450    31150 |     2627     2079     19 |  0.041 % |
0.29/0.30	|      3219 |      50     4450    31150 |     2890     1892     19 |  0.041 % |
0.29/0.39	|      4927 |      50     4450    31150 |     3179     2142     18 |  0.041 % |
0.49/0.54	|      7491 |      50     4450    31150 |     3497     3104     18 |  0.041 % |
0.69/0.75	|     11335 |      50     4450    31150 |     3847     3426     18 |  0.041 % |
1.00/1.07	|     17102 |      50     4450    31150 |     4232     3384     18 |  0.041 % |
1.49/1.56	|     25752 |      50     4450    31150 |     4655     3519     18 |  0.041 % |
2.29/2.33	|     38727 |      50     4450    31150 |     5120     2460     17 |  0.041 % |
3.39/3.48	|     58188 |      50     4450    31150 |     5632     3921     17 |  0.041 % |
5.19/5.24	|     87381 |      50     4450    31150 |     6196     4853     17 |  0.041 % |
6.50/6.60	===============================================================================
6.50/6.60	lookaheads            : 0
6.50/6.60	variable balance      : 0.00
6.50/6.60	restarts              : 16
6.50/6.60	conflicts             : 109084         (16533 /sec)
6.50/6.60	decisions             : 117528         (1.78 % random) (17813 /sec)
6.50/6.60	decision = positive   : 60873
6.50/6.60	decision = negative   : 56654
6.50/6.60	propagations          : 904196         (137041 /sec)
6.50/6.60	conflict literals     : 1943124        (14.24 % deleted)
6.50/6.60	Memory used           : 2.98 MB
6.50/6.60	CPU time              : 6.598 s
6.50/6.60	
6.50/6.60	s SATISFIABLE
6.50/6.60	v 1 -2 -3 -4 5 -6 -7 8 -9 -10 -11 12 13 14 15 16 17 -18 19 -20 -21 22 -23 24 -25 -26 -27 -28 29 -30 -31 -32 -33 -34 35 -36 -37 38 39 40 -41 -42 -43 44 -45 46 47 48 49 -50 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node5/watcher-427281-1177634896 -o ROOT/results/node5/solver-427281-1177634896 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/427281-1177634896/minimarch_fixed /tmp/evaluation/427281-1177634896/instance-427281-1177634896.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): 2400 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: 0.91 0.97 0.97 3/77 30530
/proc/meminfo: memFree=1536960/2055920 swapFree=4151648/4192956
[pid=30530] ppid=30528 vsize=1868 CPUtime=0
/proc/30530/stat : 30530 (minimarch_fixed) R 30528 30530 29694 0 -1 4194304 163 0 0 0 0 0 0 0 18 0 1 0 239527231 1912832 149 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/30530/statm: 467 150 51 132 0 332 0

[startup+0.0452371 s]
/proc/loadavg: 0.91 0.97 0.97 3/77 30530
/proc/meminfo: memFree=1536960/2055920 swapFree=4151648/4192956
[pid=30530] ppid=30528 vsize=2128 CPUtime=0.04
/proc/30530/stat : 30530 (minimarch_fixed) R 30528 30530 29694 0 -1 4194304 225 0 0 0 4 0 0 0 18 0 1 0 239527231 2179072 210 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134531526 0 0 4096 3 0 0 0 17 1 0 0
/proc/30530/statm: 532 210 63 132 0 397 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2128

[startup+0.101242 s]
/proc/loadavg: 0.91 0.97 0.97 3/77 30530
/proc/meminfo: memFree=1536960/2055920 swapFree=4151648/4192956
[pid=30530] ppid=30528 vsize=2128 CPUtime=0.09
/proc/30530/stat : 30530 (minimarch_fixed) R 30528 30530 29694 0 -1 4194304 225 0 0 0 9 0 0 0 18 0 1 0 239527231 2179072 210 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134523033 0 0 4096 3 0 0 0 17 1 0 0
/proc/30530/statm: 532 210 63 132 0 397 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2128

[startup+0.301266 s]
/proc/loadavg: 0.91 0.97 0.97 3/77 30530
/proc/meminfo: memFree=1536960/2055920 swapFree=4151648/4192956
[pid=30530] ppid=30528 vsize=2260 CPUtime=0.29
/proc/30530/stat : 30530 (minimarch_fixed) R 30528 30530 29694 0 -1 4194304 266 0 0 0 29 0 0 0 20 0 1 0 239527231 2314240 251 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551374 0 0 4096 3 0 0 0 17 1 0 0
/proc/30530/statm: 565 251 67 132 0 430 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2260

[startup+0.701312 s]
/proc/loadavg: 0.91 0.97 0.97 3/77 30530
/proc/meminfo: memFree=1536960/2055920 swapFree=4151648/4192956
[pid=30530] ppid=30528 vsize=2392 CPUtime=0.69
/proc/30530/stat : 30530 (minimarch_fixed) R 30528 30530 29694 0 -1 4194304 310 0 0 0 69 0 0 0 24 0 1 0 239527231 2449408 295 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551772 0 0 4096 3 0 0 0 17 1 0 0
/proc/30530/statm: 598 295 67 132 0 463 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2392

[startup+1.5014 s]
/proc/loadavg: 0.91 0.97 0.97 2/78 30531
/proc/meminfo: memFree=1535992/2055920 swapFree=4151648/4192956
[pid=30530] ppid=30528 vsize=2656 CPUtime=1.49
/proc/30530/stat : 30530 (minimarch_fixed) R 30528 30530 29694 0 -1 4194304 352 0 0 0 149 0 0 0 25 0 1 0 239527231 2719744 337 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551244 0 0 4096 3 0 0 0 17 1 0 0
/proc/30530/statm: 664 337 67 132 0 529 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2656

[startup+3.10158 s]
/proc/loadavg: 0.91 0.97 0.97 2/78 30531
/proc/meminfo: memFree=1535672/2055920 swapFree=4151648/4192956
[pid=30530] ppid=30528 vsize=2788 CPUtime=3.09
/proc/30530/stat : 30530 (minimarch_fixed) R 30528 30530 29694 0 -1 4194304 395 0 0 0 309 0 0 0 25 0 1 0 239527231 2854912 380 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134552702 0 0 4096 3 0 0 0 17 1 0 0
/proc/30530/statm: 697 380 67 132 0 562 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2788

[startup+6.30195 s]
/proc/loadavg: 0.92 0.97 0.97 2/78 30531
/proc/meminfo: memFree=1535288/2055920 swapFree=4151648/4192956
[pid=30530] ppid=30528 vsize=3052 CPUtime=6.29
/proc/30530/stat : 30530 (minimarch_fixed) R 30528 30530 29694 0 -1 4194304 464 0 0 0 629 0 0 0 25 0 1 0 239527231 3125248 449 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134563661 0 0 4096 3 0 0 0 17 1 0 0
/proc/30530/statm: 763 449 67 132 0 628 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3052

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

[startup+6.50197 s]
/proc/loadavg: 0.92 0.97 0.97 2/78 30531
/proc/meminfo: memFree=1535160/2055920 swapFree=4151648/4192956
[pid=30530] ppid=30528 vsize=3052 CPUtime=6.5
/proc/30530/stat : 30530 (minimarch_fixed) R 30528 30530 29694 0 -1 4194304 467 0 0 0 650 0 0 0 25 0 1 0 239527231 3125248 452 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134550382 0 0 4096 3 0 0 0 17 1 0 0
/proc/30530/statm: 763 452 67 132 0 628 0
Current children cumulated CPU time (s) 6.5
Current children cumulated vsize (KiB) 3052

Child status: 10
Real time (s): 6.60433
CPU time (s): 6.602
CPU user time (s): 6.598
CPU system time (s): 0.003999
CPU usage (%): 99.9646
Max. virtual memory (cumulated for all children) (KiB): 3052

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.598
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 474
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= 131

runsolver used 0.006998 second user time and 0.020996 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Fri Apr 27 00:48:16 UTC 2007

IDJOB= 427281
IDBENCH= 19896
IDSOLVER= 198
FILE ID= node5/427281-1177634896

PBS_JOBID= 4697232

Free space on /tmp= 66394 MiB

SOLVER NAME= minimarch 2007-04-26 (fixed)
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v50/unif-k7-r89-v50-c4450-S1718130589-01.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/427281-1177634896/minimarch_fixed /tmp/evaluation/427281-1177634896/instance-427281-1177634896.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-427281-1177634896 -o ROOT/results/node5/solver-427281-1177634896 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/427281-1177634896/minimarch_fixed /tmp/evaluation/427281-1177634896/instance-427281-1177634896.cnf

META MD5SUM SOLVER= 08d902191c06ef4f82d57c2f2b6a82c2
MD5SUM BENCH=  92a81fb7daa035c842fe0ed87fafd083

RANDOM SEED= 612203243

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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:       1537368 kB
Buffers:         51244 kB
Cached:         375300 kB
SwapCached:       9948 kB
Active:         255140 kB
Inactive:       195020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1537368 kB
SwapTotal:     4192956 kB
SwapFree:      4151648 kB
Dirty:            3060 kB
Writeback:           0 kB
Mapped:          30372 kB
Slab:            53920 kB
Committed_AS:  9118068 kB
PageTables:       1720 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= 66394 MiB

End job on node5 on Fri Apr 27 00:48:22 UTC 2007