Trace number 422223

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
minisat SAT 2007UNSAT 1.9407 1.94295

General information on the benchmark

Namecrafted/spence/
medium/s57-100.cnf
MD5SUM4dc4c11d420a4a03c2a3fdf77861be5d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.34979
Satisfiable
(Un)Satisfiability was proved
Number of variables57
Number of clauses124
Sum of the clauses size372
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3124
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	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  57                                                   |
0.00/0.00	c |  Number of clauses:    124                                                  |
0.00/0.00	c |  Parsing time:         0.00         s                                       |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |      57      124      372 |       41        0    nan |  0.000 % |
0.00/0.00	c |       100 |      57      124      372 |       45       47      9 |  0.031 % |
0.00/0.00	c |       251 |      57      124      372 |       50       49      9 |  0.031 % |
0.00/0.00	c |       476 |      57      124      372 |       55       70      8 |  0.031 % |
0.00/0.00	c |       814 |      57      124      372 |       60       46      7 |  0.031 % |
0.00/0.01	c |      1320 |      57      124      372 |       66       55      8 |  0.031 % |
0.00/0.02	c |      2079 |      57      124      372 |       73       65      9 |  0.031 % |
0.00/0.03	c |      3218 |      57      124      372 |       80       76      8 |  0.031 % |
0.03/0.05	c |      4927 |      57      124      372 |       88       64      7 |  0.031 % |
0.03/0.07	c |      7489 |      57      124      372 |       97       75      7 |  0.031 % |
0.09/0.11	c |     11334 |      57      124      372 |      107      100      9 |  0.031 % |
0.09/0.17	c |     17101 |      57      124      372 |      117      105      8 |  0.031 % |
0.19/0.27	c |     25751 |      57      124      372 |      129      113      8 |  0.031 % |
0.39/0.41	c |     38726 |      57      124      372 |      142      138      8 |  0.032 % |
0.59/0.62	c |     58187 |      57      124      372 |      156      128      8 |  0.032 % |
0.89/0.94	c |     87379 |      57      124      372 |      172      161      7 |  0.064 % |
1.39/1.44	c |    131168 |      57      124      372 |      189       97      5 |  0.186 % |
1.89/1.94	c ===============================================================================
1.89/1.94	c restarts              : 17
1.89/1.94	c conflicts             : 176137         (90806 /sec)
1.89/1.94	c decisions             : 208072         (1.57 % random) (107270 /sec)
1.89/1.94	c propagations          : 3706143        (1910674 /sec)
1.89/1.94	c conflict literals     : 1789199        (14.98 % deleted)
1.89/1.94	c Memory used           : 1.68 MB
1.89/1.94	c CPU time              : 1.93971 s
1.89/1.94	c 
1.89/1.94	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/node38/watcher-422223-1177550756 -o ROOT/results/node38/solver-422223-1177550756 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/422223-1177550756/minisat_noassertions /tmp/evaluation/422223-1177550756/instance-422223-1177550756.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 1.00 1.01 0.94 3/77 27124
/proc/meminfo: memFree=1749648/2055920 swapFree=4159740/4192956
[pid=27124] ppid=27122 vsize=1720 CPUtime=0
/proc/27124/stat : 27124 (minisat_noasser) R 27122 27124 25852 0 -1 4194304 96 0 0 0 0 0 0 0 18 0 1 0 187242247 1761280 82 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134548930 0 0 4096 3 0 0 0 17 1 0 0
/proc/27124/statm: 430 82 66 130 0 297 0

[startup+0.039618 s]
/proc/loadavg: 1.00 1.01 0.94 3/77 27124
/proc/meminfo: memFree=1749648/2055920 swapFree=4159740/4192956
[pid=27124] ppid=27122 vsize=1720 CPUtime=0.03
/proc/27124/stat : 27124 (minisat_noasser) R 27122 27124 25852 0 -1 4194304 98 0 0 0 3 0 0 0 18 0 1 0 187242247 1761280 84 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134548187 0 0 4096 3 0 0 0 17 1 0 0
/proc/27124/statm: 430 84 66 130 0 297 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1720

[startup+0.101622 s]
/proc/loadavg: 1.00 1.01 0.94 3/77 27124
/proc/meminfo: memFree=1749648/2055920 swapFree=4159740/4192956
[pid=27124] ppid=27122 vsize=1720 CPUtime=0.09
/proc/27124/stat : 27124 (minisat_noasser) R 27122 27124 25852 0 -1 4194304 99 0 0 0 9 0 0 0 18 0 1 0 187242247 1761280 85 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547111 0 0 4096 3 0 0 0 17 1 0 0
/proc/27124/statm: 430 85 66 130 0 297 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1720

[startup+0.30166 s]
/proc/loadavg: 1.00 1.01 0.94 3/77 27124
/proc/meminfo: memFree=1749648/2055920 swapFree=4159740/4192956
[pid=27124] ppid=27122 vsize=1720 CPUtime=0.29
/proc/27124/stat : 27124 (minisat_noasser) R 27122 27124 25852 0 -1 4194304 99 0 0 0 29 0 0 0 19 0 1 0 187242247 1761280 85 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546812 0 0 4096 3 0 0 0 17 1 0 0
/proc/27124/statm: 430 85 66 130 0 297 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1720

[startup+0.701737 s]
/proc/loadavg: 1.00 1.01 0.94 3/77 27124
/proc/meminfo: memFree=1749648/2055920 swapFree=4159740/4192956
[pid=27124] ppid=27122 vsize=1720 CPUtime=0.69
/proc/27124/stat : 27124 (minisat_noasser) R 27122 27124 25852 0 -1 4194304 100 0 0 0 69 0 0 0 23 0 1 0 187242247 1761280 86 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552185 0 0 4096 3 0 0 0 17 1 0 0
/proc/27124/statm: 430 86 66 130 0 297 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1720

[startup+1.50189 s]
/proc/loadavg: 1.00 1.01 0.94 2/78 27125
/proc/meminfo: memFree=1749448/2055920 swapFree=4159740/4192956
[pid=27124] ppid=27122 vsize=1720 CPUtime=1.49
/proc/27124/stat : 27124 (minisat_noasser) R 27122 27124 25852 0 -1 4194304 102 0 0 0 149 0 0 0 25 0 1 0 187242247 1761280 88 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552479 0 0 4096 3 0 0 0 17 1 0 0
/proc/27124/statm: 430 88 66 130 0 297 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1720

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

[startup+1.90197 s]
/proc/loadavg: 1.00 1.01 0.94 2/78 27125
/proc/meminfo: memFree=1749448/2055920 swapFree=4159740/4192956
[pid=27124] ppid=27122 vsize=1720 CPUtime=1.89
/proc/27124/stat : 27124 (minisat_noasser) R 27122 27124 25852 0 -1 4194304 102 0 0 0 189 0 0 0 25 0 1 0 187242247 1761280 88 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546951 0 0 4096 3 0 0 0 17 1 0 0
/proc/27124/statm: 430 88 66 130 0 297 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 1720

Child status: 20
Real time (s): 1.94295
CPU time (s): 1.9407
CPU user time (s): 1.9397
CPU system time (s): 0.000999
CPU usage (%): 99.8842
Max. virtual memory (cumulated for all children) (KiB): 1720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.93971
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= 108
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= 42

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node38 on Thu Apr 26 01:25:56 UTC 2007

IDJOB= 422223
IDBENCH= 20437
IDSOLVER= 189
FILE ID= node38/422223-1177550756

PBS_JOBID= 4696561

Free space on /tmp= 66259 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s57-100.cnf
COMMAND LINE= /tmp/evaluation/422223-1177550756/minisat_noassertions /tmp/evaluation/422223-1177550756/instance-422223-1177550756.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-422223-1177550756 -o ROOT/results/node38/solver-422223-1177550756 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/422223-1177550756/minisat_noassertions /tmp/evaluation/422223-1177550756/instance-422223-1177550756.cnf

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  4dc4c11d420a4a03c2a3fdf77861be5d

RANDOM SEED= 592070397

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node38.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		: 3000.263
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		: 3000.263
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:       1750120 kB
Buffers:         36532 kB
Cached:         194456 kB
SwapCached:       3136 kB
Active:         152724 kB
Inactive:       103172 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1750120 kB
SwapTotal:     4192956 kB
SwapFree:      4159740 kB
Dirty:            1484 kB
Writeback:           0 kB
Mapped:          33160 kB
Slab:            35208 kB
Committed_AS:  1726292 kB
PageTables:       2064 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= 66259 MiB

End job on node38 on Thu Apr 26 01:25:58 UTC 2007