Trace number 428327

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)UNSAT 3.44448 3.44791

General information on the benchmark

Namecrafted/spence/
medium/s61-100.cnf
MD5SUM8e686ecbc85309de84d77c0df9eeaa58
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.65375
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of clauses132
Sum of the clauses size396
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3132
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 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:  61                                                   |
0.00/0.00	|  Number of clauses:    132                                                  |
0.00/0.00	|  Parsing time:         0.00         s                                       |
0.00/0.00	============================[ Search Statistics ]==============================
0.00/0.00	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	===============================================================================
0.00/0.00	|         0 |      61      132      396 |       44        0    nan |  0.000 % |
0.00/0.00	|       100 |      61      132      396 |       48       69     11 |  0.028 % |
0.00/0.00	|       250 |      61      132      396 |       53       44      9 |  0.027 % |
0.00/0.00	|       476 |      61      132      396 |       58       53      9 |  0.027 % |
0.00/0.01	|       813 |      61      132      396 |       64       48      8 |  0.027 % |
0.00/0.01	|      1319 |      61      132      396 |       70       75      9 |  0.027 % |
0.00/0.02	|      2079 |      61      132      396 |       77       73      9 |  0.027 % |
0.00/0.04	|      3218 |      61      132      396 |       85       58      8 |  0.027 % |
0.00/0.06	|      4927 |      61      132      396 |       94       65      8 |  0.027 % |
0.00/0.09	|      7489 |      61      132      396 |      103       65      7 |  0.027 % |
0.09/0.14	|     11333 |      61      132      396 |      114       89      8 |  0.027 % |
0.19/0.22	|     17099 |      61      132      396 |      125       81      7 |  0.027 % |
0.29/0.34	|     25748 |      61      132      396 |      138      116      8 |  0.027 % |
0.50/0.51	|     38722 |      61      132      396 |      151      121      9 |  0.027 % |
0.70/0.77	|     58184 |      61      132      396 |      167      156      9 |  0.027 % |
1.10/1.17	|     87376 |      61      132      396 |      183      190      8 |  0.028 % |
1.69/1.76	|    131166 |      61      132      396 |      202      188      8 |  0.030 % |
2.59/2.65	|    196850 |      61      132      396 |      222      180      7 |  0.083 % |
3.39/3.44	===============================================================================
3.39/3.44	lookaheads            : 242841
3.39/3.44	variable balance      : 0.00
3.39/3.44	restarts              : 18
3.39/3.44	conflicts             : 255268         (74131 /sec)
3.39/3.44	decisions             : 296452         (1.57 % random) (86091 /sec)
3.39/3.44	decision = positive   : 148658
3.39/3.44	decision = negative   : 147794
3.39/3.44	propagations          : 5946200        (1726802 /sec)
3.39/3.44	conflict literals     : 2575042        (13.76 % deleted)
3.39/3.44	Memory used           : 1.70 MB
3.39/3.44	CPU time              : 3.44348 s
3.39/3.44	
3.39/3.44	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node20/watcher-428327-1177717100 -o ROOT/results/node20/solver-428327-1177717100 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/428327-1177717100/minimarch_fixed /tmp/evaluation/428327-1177717100/instance-428327-1177717100.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: 0.93 1.00 0.99 3/77 7489
/proc/meminfo: memFree=1633000/2055920 swapFree=4154160/4192956
[pid=7489] ppid=7487 vsize=1732 CPUtime=0
/proc/7489/stat : 7489 (minimarch_fixed) R 7487 7489 6457 0 -1 4194304 98 0 0 0 0 0 0 0 18 0 1 0 219627395 1773568 83 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134557581 0 0 4096 3 0 0 0 17 0 0 0
/proc/7489/statm: 433 83 67 132 0 298 0

[startup+0.010118 s]
/proc/loadavg: 0.93 1.00 0.99 3/77 7489
/proc/meminfo: memFree=1633000/2055920 swapFree=4154160/4192956
[pid=7489] ppid=7487 vsize=1732 CPUtime=0
/proc/7489/stat : 7489 (minimarch_fixed) R 7487 7489 6457 0 -1 4194304 99 0 0 0 0 0 0 0 18 0 1 0 219627395 1773568 84 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134557581 0 0 4096 3 0 0 0 17 0 0 0
/proc/7489/statm: 433 84 67 132 0 298 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1732

[startup+0.101137 s]
/proc/loadavg: 0.93 1.00 0.99 3/77 7489
/proc/meminfo: memFree=1633000/2055920 swapFree=4154160/4192956
[pid=7489] ppid=7487 vsize=1732 CPUtime=0.09
/proc/7489/stat : 7489 (minimarch_fixed) R 7487 7489 6457 0 -1 4194304 101 0 0 0 9 0 0 0 18 0 1 0 219627395 1773568 86 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134552526 0 0 4096 3 0 0 0 17 0 0 0
/proc/7489/statm: 433 86 67 132 0 298 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1732

[startup+0.301176 s]
/proc/loadavg: 0.93 1.00 0.99 3/77 7489
/proc/meminfo: memFree=1633000/2055920 swapFree=4154160/4192956
[pid=7489] ppid=7487 vsize=1732 CPUtime=0.29
/proc/7489/stat : 7489 (minimarch_fixed) R 7487 7489 6457 0 -1 4194304 101 0 0 0 29 0 0 0 20 0 1 0 219627395 1773568 86 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551667 0 0 4096 3 0 0 0 17 0 0 0
/proc/7489/statm: 433 86 67 132 0 298 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1732

[startup+0.702257 s]
/proc/loadavg: 0.93 1.00 0.99 3/77 7489
/proc/meminfo: memFree=1633000/2055920 swapFree=4154160/4192956
[pid=7489] ppid=7487 vsize=1732 CPUtime=0.7
/proc/7489/stat : 7489 (minimarch_fixed) R 7487 7489 6457 0 -1 4194304 102 0 0 0 70 0 0 0 24 0 1 0 219627395 1773568 87 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134552554 0 0 4096 3 0 0 0 17 0 0 0
/proc/7489/statm: 433 87 67 132 0 298 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1732

[startup+1.50142 s]
/proc/loadavg: 0.93 1.00 0.99 2/78 7490
/proc/meminfo: memFree=1632800/2055920 swapFree=4154160/4192956
[pid=7489] ppid=7487 vsize=1732 CPUtime=1.49
/proc/7489/stat : 7489 (minimarch_fixed) R 7487 7489 6457 0 -1 4194304 105 0 0 0 149 0 0 0 25 0 1 0 219627395 1773568 90 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134522033 0 0 4096 3 0 0 0 17 0 0 0
/proc/7489/statm: 433 90 67 132 0 298 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1732

[startup+3.10174 s]
/proc/loadavg: 0.93 1.00 0.99 2/78 7490
/proc/meminfo: memFree=1632672/2055920 swapFree=4154160/4192956
[pid=7489] ppid=7487 vsize=1732 CPUtime=3.09
/proc/7489/stat : 7489 (minimarch_fixed) R 7487 7489 6457 0 -1 4194304 107 0 0 0 309 0 0 0 25 0 1 0 219627395 1773568 92 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134563352 0 0 4096 3 0 0 0 17 0 0 0
/proc/7489/statm: 433 92 67 132 0 298 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1732

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

[startup+3.30578 s]
/proc/loadavg: 0.93 1.00 0.99 2/78 7490
/proc/meminfo: memFree=1632672/2055920 swapFree=4154160/4192956
[pid=7489] ppid=7487 vsize=1732 CPUtime=3.3
/proc/7489/stat : 7489 (minimarch_fixed) R 7487 7489 6457 0 -1 4194304 108 0 0 0 330 0 0 0 25 0 1 0 219627395 1773568 93 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134557653 0 0 4096 3 0 0 0 17 0 0 0
/proc/7489/statm: 433 93 67 132 0 298 0
Current children cumulated CPU time (s) 3.3
Current children cumulated vsize (KiB) 1732

[startup+3.4018 s]
/proc/loadavg: 0.93 1.00 0.99 2/78 7490
/proc/meminfo: memFree=1632672/2055920 swapFree=4154160/4192956
[pid=7489] ppid=7487 vsize=1732 CPUtime=3.39
/proc/7489/stat : 7489 (minimarch_fixed) R 7487 7489 6457 0 -1 4194304 108 0 0 0 339 0 0 0 25 0 1 0 219627395 1773568 93 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134550903 0 0 4096 3 0 0 0 17 0 0 0
/proc/7489/statm: 433 93 67 132 0 298 0
Current children cumulated CPU time (s) 3.39
Current children cumulated vsize (KiB) 1732

Child status: 20
Real time (s): 3.44791
CPU time (s): 3.44448
CPU user time (s): 3.44348
CPU system time (s): 0.000999
CPU usage (%): 99.9003
Max. virtual memory (cumulated for all children) (KiB): 1732

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.44348
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 115
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= 24

runsolver used 0.006998 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node20 on Fri Apr 27 23:38:21 UTC 2007

IDJOB= 428327
IDBENCH= 20433
IDSOLVER= 198
FILE ID= node20/428327-1177717100

PBS_JOBID= 4698749

Free space on /tmp= 66527 MiB

SOLVER NAME= minimarch 2007-04-26 (fixed)
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s61-100.cnf
COMMAND LINE= /tmp/evaluation/428327-1177717100/minimarch_fixed /tmp/evaluation/428327-1177717100/instance-428327-1177717100.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node20/watcher-428327-1177717100 -o ROOT/results/node20/solver-428327-1177717100 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/428327-1177717100/minimarch_fixed /tmp/evaluation/428327-1177717100/instance-428327-1177717100.cnf

META MD5SUM SOLVER= 08d902191c06ef4f82d57c2f2b6a82c2
MD5SUM BENCH=  8e686ecbc85309de84d77c0df9eeaa58

RANDOM SEED= 198526417

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node20.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		: 3000.265
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		: 3000.265
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:       1633472 kB
Buffers:         49932 kB
Cached:         282252 kB
SwapCached:      18424 kB
Active:         199316 kB
Inactive:       158044 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1633472 kB
SwapTotal:     4192956 kB
SwapFree:      4154160 kB
Dirty:            3020 kB
Writeback:           0 kB
Mapped:          30268 kB
Slab:            50656 kB
Committed_AS:  2118040 kB
PageTables:       1744 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= 66527 MiB

End job on node20 on Fri Apr 27 23:38:24 UTC 2007