Trace number 1773522

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
MiniSat 2.1 (Sat-race'08 Edition)UNSAT 27.8578 27.8648

General information on the benchmark

Namecmu-bmc-longmult15.cnf
MD5SUM21b49b73035bb6e7a1dd17830907ac9d
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark14.9097
Satisfiable
(Un)Satisfiability was proved
Number of variables7807
Number of clauses24351
Sum of the clauses size58557
Maximum clause length18
Minimum clause length1
Number of clauses of size 153
Number of clauses of size 216386
Number of clauses of size 36700
Number of clauses of size 4908
Number of clauses of size 516
Number of clauses of size over 5288

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.02	c |  Number of variables:          7807                                         |
0.00/0.02	c |  Number of clauses:           24298                                         |
0.00/0.02	c |  Parse time:                   0.02 s                                       |
0.09/0.11	c |  Simplification time:          0.09 s                                       |
0.09/0.11	c |                                                                             |
0.09/0.11	c ============================[ Search Statistics ]==============================
0.09/0.11	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.09/0.11	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.09/0.11	c ===============================================================================
0.09/0.12	c |       100 |    1805    10280    33709 |     3769      100     13 |  4.611 % |
0.09/0.13	c |       250 |    1805    10280    33709 |     4146      250     13 |  4.611 % |
0.09/0.14	c |       475 |    1805    10280    33709 |     4560      475     13 |  4.611 % |
0.09/0.17	c |       812 |    1805    10280    33709 |     5016      812     16 |  4.611 % |
0.19/0.23	c |      1318 |    1805    10280    33709 |     5518     1318     20 |  4.611 % |
0.29/0.30	c |      2077 |    1805    10280    33709 |     6070     2077     19 |  4.611 % |
0.39/0.42	c |      3216 |    1805    10280    33709 |     6677     3216     20 |  4.611 % |
0.49/0.55	c |      4924 |    1805    10280    33709 |     7345     4924     19 |  4.611 % |
0.79/0.82	c |      7486 |    1805    10280    33709 |     8079     7486     19 |  4.611 % |
1.19/1.24	c |     11330 |    1756     9835    32302 |     8887     7064     17 |  5.239 % |
1.89/1.97	c |     17096 |    1756     9835    32302 |     9776     8146     16 |  5.239 % |
2.99/3.05	c |     25745 |    1756     9835    32302 |    10754     6524     15 |  5.239 % |
4.79/4.82	c |     38719 |    1756     9835    32302 |    11829     8229     15 |  5.239 % |
7.39/7.41	c |     58180 |    1756     9835    32302 |    13012     8512     14 |  5.239 % |
11.29/11.30	c |     87372 |    1755     9830    32289 |    14314     9816     15 |  5.252 % |
16.99/17.04	c |    131161 |    1755     9830    32289 |    15745     8788     14 |  5.252 % |
26.29/26.34	c |    196845 |    1754     9825    32276 |    17319     8770     12 |  5.265 % |
27.78/27.86	c ===============================================================================
27.78/27.86	c restarts              : 511
27.78/27.86	c conflicts             : 209001         (7507 /sec)
27.78/27.86	c decisions             : 244427         (8779 /sec)
27.78/27.86	c propagations          : 65219734       (2342514 /sec)
27.78/27.86	c conflict literals     : 3427569        (56.76 % deleted)
27.78/27.86	c Memory used           : 20.61 MB
27.78/27.86	c CPU time              : 27.8418 s
27.78/27.86	c 
27.78/27.86	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-1773522-1241212047/watcher-1773522-1241212047 -o /tmp/evaluation-result-1773522-1241212047/solver-1773522-1241212047 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1773522-1241212047.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 22138
/proc/meminfo: memFree=712872/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=7608 CPUtime=0
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 277 0 0 0 0 0 0 0 18 0 1 0 149232704 7790592 261 1992294400 4194304 5092341 548682068848 18446744073709551615 4214700 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 1902 263 63 219 0 1680 0

[startup+0.0865629 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 22138
/proc/meminfo: memFree=712872/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=10008 CPUtime=0.08
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 1055 0 0 0 8 0 0 0 18 0 1 0 149232704 10248192 1039 1992294400 4194304 5092341 548682068848 18446744073709551615 4202869 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 2502 1039 88 219 0 2280 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 10008

[startup+0.101563 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 22138
/proc/meminfo: memFree=712872/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=10008 CPUtime=0.09
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 1088 0 0 0 9 0 0 0 18 0 1 0 149232704 10248192 1072 1992294400 4194304 5092341 548682068848 18446744073709551615 4223542 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 2502 1072 88 219 0 2280 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10008

[startup+0.301581 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 22138
/proc/meminfo: memFree=712872/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=10008 CPUtime=0.29
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 1186 0 0 0 29 0 0 0 19 0 1 0 149232704 10248192 938 1992294400 4194304 5092341 548682068848 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 2502 938 100 219 0 2280 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10008

[startup+0.701617 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 22138
/proc/meminfo: memFree=712872/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=10008 CPUtime=0.69
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 1281 0 0 0 69 0 0 0 22 0 1 0 149232704 10248192 1033 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 2502 1033 101 219 0 2280 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10008

[startup+1.50169 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 22139
/proc/meminfo: memFree=709216/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=10012 CPUtime=1.49
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 1509 0 0 0 149 0 0 0 25 0 1 0 149232704 10252288 1043 1992294400 4194304 5092341 548682068848 18446744073709551615 4241895 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 2503 1043 101 219 0 2281 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10012

[startup+3.10183 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 22139
/proc/meminfo: memFree=708000/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=20392 CPUtime=3.09
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 1960 0 0 0 309 0 0 0 25 0 1 0 149232704 20881408 1494 1992294400 4194304 5092341 548682068848 18446744073709551615 4248707 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 5098 1494 101 219 0 4876 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 20392

[startup+6.30112 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 22139
/proc/meminfo: memFree=706144/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=20576 CPUtime=6.29
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 2216 0 0 0 629 0 0 0 25 0 1 0 149232704 21069824 1750 1992294400 4194304 5092341 548682068848 18446744073709551615 4261426 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 5144 1750 101 219 0 4922 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 20576

[startup+12.7017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 22139
/proc/meminfo: memFree=704992/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=20576 CPUtime=12.69
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 2444 0 0 0 1268 1 0 0 25 0 1 0 149232704 21069824 1978 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 5144 1978 101 219 0 4922 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 20576

[startup+25.5018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 22139
/proc/meminfo: memFree=703712/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=21100 CPUtime=25.49
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 2770 0 0 0 2548 1 0 0 25 0 1 0 149232704 21606400 2304 1992294400 4194304 5092341 548682068848 18446744073709551615 4241503 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 5275 2304 101 219 0 5053 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 21100

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

[startup+27.102 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 22139
/proc/meminfo: memFree=703712/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=21100 CPUtime=27.09
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 2770 0 0 0 2708 1 0 0 25 0 1 0 149232704 21606400 2304 1992294400 4194304 5092341 548682068848 18446744073709551615 4240563 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 5275 2304 101 219 0 5053 0
Current children cumulated CPU time (s) 27.09
Current children cumulated vsize (KiB) 21100

[startup+27.505 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 22139
/proc/meminfo: memFree=703712/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=21100 CPUtime=27.49
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 2770 0 0 0 2748 1 0 0 25 0 1 0 149232704 21606400 2304 1992294400 4194304 5092341 548682068848 18446744073709551615 4248131 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 5275 2304 101 219 0 5053 0
Current children cumulated CPU time (s) 27.49
Current children cumulated vsize (KiB) 21100

[startup+27.701 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 22139
/proc/meminfo: memFree=703712/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=21100 CPUtime=27.68
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 2770 0 0 0 2767 1 0 0 25 0 1 0 149232704 21606400 2304 1992294400 4194304 5092341 548682068848 18446744073709551615 4247388 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 5275 2304 101 219 0 5053 0
Current children cumulated CPU time (s) 27.68
Current children cumulated vsize (KiB) 21100

[startup+27.8011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 22139
/proc/meminfo: memFree=703712/2055920 swapFree=4191900/4192956
[pid=22138] ppid=22136 vsize=21100 CPUtime=27.78
/proc/22138/stat : 22138 (minisat) R 22136 22138 21958 0 -1 4194304 2770 0 0 0 2777 1 0 0 25 0 1 0 149232704 21606400 2304 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/22138/statm: 5275 2304 101 219 0 5053 0
Current children cumulated CPU time (s) 27.78
Current children cumulated vsize (KiB) 21100

Child status: 20
Real time (s): 27.8648
CPU time (s): 27.8578
CPU user time (s): 27.8418
CPU system time (s): 0.015997
CPU usage (%): 99.9748
Max. virtual memory (cumulated for all children) (KiB): 21100

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.8418
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2780
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= 63

runsolver used 0.023996 second user time and 0.069989 second system time

The end

Launcher Data 

Begin job on node43 at 2009-05-01 23:07:27
IDJOB=1773522
IDBENCH=69621
IDSOLVER=608
FILE ID=node43/1773522-1241212047
PBS_JOBID= 9224716
Free space on /tmp= 66288 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE08/cnf/cmu-bmc-longmult15.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773522-1241212047/watcher-1773522-1241212047 -o /tmp/evaluation-result-1773522-1241212047/solver-1773522-1241212047 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1773522-1241212047.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 21b49b73035bb6e7a1dd17830907ac9d
RANDOM SEED=1027975440

node43.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		: 3000.237
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		: 3000.237
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:        713288 kB
Buffers:         82580 kB
Cached:        1142588 kB
SwapCached:        260 kB
Active:          25976 kB
Inactive:      1212448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        713288 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            1268 kB
Writeback:           0 kB
Mapped:          21840 kB
Slab:            90068 kB
Committed_AS:   700124 kB
PageTables:       1528 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= 66288 MiB
End job on node43 at 2009-05-01 23:07:54