Trace number 307996

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 2007 (with assertions)UNSAT 50.0434 50.0606

General information on the benchmark

Namerandom/2+p/p0.7/v3500/
unif2p-p0.7-v3500-c9345-S1377128774-12-UNSAT.cnf
MD5SUMcc733e9a0d26b1e09913a40f9eba8e3c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark28.6866
Satisfiable
(Un)Satisfiability was proved
Number of variables3500
Number of clauses9344
Sum of the clauses size25229
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22803
Number of clauses of size 36541
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:  3500                                                 |
0.00/0.00	c |  Number of clauses:    9344                                                 |
0.00/0.01	c |  Parsing time:         0.01         s                                       |
0.00/0.03	c ============================[ Search Statistics ]==============================
0.00/0.03	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.03	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.03	c ===============================================================================
0.00/0.03	c |         0 |    2481     7871    23627 |     2623        0    nan |  0.000 % |
0.00/0.04	c |       100 |    2481     7871    23627 |     2886      100     22 |  0.000 % |
0.00/0.06	c |       250 |    2481     7871    23627 |     3174      250     21 |  0.000 % |
0.00/0.08	c |       477 |    2480     7867    23618 |     3492      476     19 |  0.029 % |
0.10/0.12	c |       815 |    2480     7867    23618 |     3841      814     19 |  0.029 % |
0.10/0.18	c |      1321 |    2480     7867    23618 |     4225     1320     22 |  0.029 % |
0.20/0.26	c |      2082 |    2480     7867    23618 |     4647     2081     21 |  0.029 % |
0.40/0.42	c |      3221 |    2480     7867    23618 |     5112     3220     22 |  0.029 % |
0.61/0.67	c |      4930 |    2480     7867    23618 |     5624     4929     22 |  0.029 % |
1.02/1.07	c |      7495 |    2480     7867    23618 |     6186     4594     20 |  0.029 % |
1.64/1.66	c |     11339 |    2480     7867    23618 |     6805     5184     22 |  0.029 % |
2.56/2.64	c |     17105 |    2480     7867    23618 |     7485     3933     26 |  0.029 % |
4.19/4.22	c |     25754 |    2480     7867    23618 |     8234     4881     24 |  0.029 % |
6.55/6.57	c |     38730 |    2480     7867    23618 |     9057     5247     19 |  0.029 % |
10.24/10.27	c |     58192 |    2480     7867    23618 |     9963     6171     23 |  0.029 % |
16.07/16.12	c |     87386 |    2480     7867    23618 |    10959     9934     26 |  0.029 % |
25.19/25.30	c |    131175 |    2480     7867    23618 |    12055     9256     22 |  0.029 % |
39.33/39.37	c |    196859 |    2474     7828    23488 |    13261     7739     24 |  0.200 % |
49.97/50.05	c ===============================================================================
49.97/50.05	c restarts              : 18
49.97/50.05	c conflicts             : 243921         (4876 /sec)
49.97/50.05	c decisions             : 310725         (1.72 % random) (6212 /sec)
49.97/50.05	c propagations          : 70696802       (1413275 /sec)
49.97/50.05	c conflict literals     : 6027881        (40.96 % deleted)
49.97/50.05	c Memory used           : 5.38 MB
49.97/50.05	c CPU time              : 50.0234 s
49.97/50.05	c 
49.97/50.05	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node10/watcher-307996-1172511066 -o ROOT/results/node10/solver-307996-1172511066 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/307996-1172511066/minisat /tmp/evaluation/307996-1172511066/instance-307996-1172511066.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: 1.00 1.00 0.94 3/77 20571
/proc/meminfo: memFree=1609968/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=2340 CPUtime=0
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 262 0 0 0 0 0 0 0 18 0 1 0 271061664 2396160 246 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134532549 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 585 246 58 138 0 444 0

[startup+0.10751 s]
/proc/loadavg: 1.00 1.00 0.94 3/77 20571
/proc/meminfo: memFree=1609968/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=2976 CPUtime=0.1
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 462 0 0 0 10 0 0 0 18 0 1 0 271061664 3047424 446 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550554 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 744 446 73 138 0 603 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2976

[startup+0.517565 s]
/proc/loadavg: 1.00 1.00 0.94 3/77 20571
/proc/meminfo: memFree=1609968/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=3108 CPUtime=0.51
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 484 0 0 0 51 0 0 0 22 0 1 0 271061664 3182592 468 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134707275 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 777 468 73 138 0 636 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3108

[startup+1.34268 s]
/proc/loadavg: 1.00 1.00 0.94 2/78 20572
/proc/meminfo: memFree=1608104/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=3372 CPUtime=1.33
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 564 0 0 0 133 0 0 0 25 0 1 0 271061664 3452928 548 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134707275 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 843 548 73 138 0 702 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3372

[startup+2.9789 s]
/proc/loadavg: 1.00 1.00 0.94 2/78 20572
/proc/meminfo: memFree=1607720/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=3768 CPUtime=2.97
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 647 0 0 0 297 0 0 0 25 0 1 0 271061664 3858432 631 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550729 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 942 631 73 138 0 801 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 3768

[startup+6.25534 s]
/proc/loadavg: 1.00 1.00 0.94 2/78 20572
/proc/meminfo: memFree=1607208/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=3900 CPUtime=6.24
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 698 0 0 0 624 0 0 0 25 0 1 0 271061664 3993600 682 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134560324 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 975 682 73 138 0 834 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 3900

[startup+12.7122 s]
/proc/loadavg: 1.00 1.00 0.94 2/78 20572
/proc/meminfo: memFree=1606824/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=4300 CPUtime=12.69
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 781 0 0 0 1269 0 0 0 25 0 1 0 271061664 4403200 765 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550985 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 1075 765 73 138 0 934 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4300

[startup+25.5129 s]
/proc/loadavg: 1.00 1.00 0.94 2/78 20572
/proc/meminfo: memFree=1606192/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=4964 CPUtime=25.5
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 949 0 0 0 2549 1 0 0 25 0 1 0 271061664 5083136 933 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550652 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 1241 933 73 138 0 1100 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 4964

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

[startup+26.235 s]
/proc/loadavg: 1.00 1.00 0.94 2/78 20572
/proc/meminfo: memFree=1606192/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=4964 CPUtime=26.22
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 960 0 0 0 2621 1 0 0 25 0 1 0 271061664 5083136 944 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134551013 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 1241 944 73 138 0 1100 0
Current children cumulated CPU time (s) 26.22
Current children cumulated vsize (KiB) 4964

[startup+39.3468 s]
/proc/loadavg: 1.00 1.00 0.94 2/78 20572
/proc/meminfo: memFree=1606000/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=5096 CPUtime=39.33
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 994 0 0 0 3932 1 0 0 25 0 1 0 271061664 5218304 978 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550642 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 1274 978 73 138 0 1133 0
Current children cumulated CPU time (s) 39.33
Current children cumulated vsize (KiB) 5096

[startup+45.9047 s]
/proc/loadavg: 1.00 1.00 0.94 2/78 20572
/proc/meminfo: memFree=1605744/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=5500 CPUtime=45.88
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 1065 0 0 0 4587 1 0 0 25 0 1 0 271061664 5632000 1049 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550593 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 1375 1049 73 138 0 1234 0
Current children cumulated CPU time (s) 45.88
Current children cumulated vsize (KiB) 5500

[startup+47.5449 s]
/proc/loadavg: 1.00 1.00 0.94 2/78 20572
/proc/meminfo: memFree=1605680/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=5500 CPUtime=47.52
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 1069 0 0 0 4751 1 0 0 25 0 1 0 271061664 5632000 1053 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550759 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 1375 1053 73 138 0 1234 0
Current children cumulated CPU time (s) 47.52
Current children cumulated vsize (KiB) 5500

[startup+49.1811 s]
/proc/loadavg: 1.00 1.00 0.94 2/78 20572
/proc/meminfo: memFree=1605680/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=5500 CPUtime=49.15
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 1069 0 0 0 4914 1 0 0 25 0 1 0 271061664 5632000 1053 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550551 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 1375 1053 73 138 0 1234 0
Current children cumulated CPU time (s) 49.15
Current children cumulated vsize (KiB) 5500

[startup+49.5892 s]
/proc/loadavg: 1.00 1.00 0.94 2/78 20572
/proc/meminfo: memFree=1605680/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=5500 CPUtime=49.57
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 1069 0 0 0 4956 1 0 0 25 0 1 0 271061664 5632000 1053 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134552077 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 1375 1053 73 138 0 1234 0
Current children cumulated CPU time (s) 49.57
Current children cumulated vsize (KiB) 5500

[startup+50.0013 s]
/proc/loadavg: 1.00 1.00 0.94 2/78 20572
/proc/meminfo: memFree=1605680/2055920 swapFree=4192812/4192956
[pid=20571] ppid=20569 vsize=5500 CPUtime=49.97
/proc/20571/stat : 20571 (minisat) R 20569 20571 19366 0 -1 4194304 1069 0 0 0 4996 1 0 0 25 0 1 0 271061664 5632000 1053 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134556366 0 0 4096 3 0 0 0 17 1 0 0
/proc/20571/statm: 1375 1053 73 138 0 1234 0
Current children cumulated CPU time (s) 49.97
Current children cumulated vsize (KiB) 5500

Child status: 0
Real time (s): 50.0606
CPU time (s): 50.0434
CPU user time (s): 50.0274
CPU system time (s): 0.015997
CPU usage (%): 99.9656
Max. virtual memory (cumulated for all children) (KiB): 5500

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 50.0274
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= 1075
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= 7
involuntary context switches= 1046

runsolver used 0.052991 second user time and 0.12998 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Mon Feb 26 17:31:07 UTC 2007

IDJOB= 307996
IDBENCH= 20220
IDSOLVER= 109
FILE ID= node10/307996-1172511066

PBS_JOBID= 3971597

Free space on /tmp= 66560 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v3500/unif2p-p0.7-v3500-c9345-S1377128774-12-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/307996-1172511066/minisat /tmp/evaluation/307996-1172511066/instance-307996-1172511066.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-307996-1172511066 -o ROOT/results/node10/solver-307996-1172511066 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/307996-1172511066/minisat /tmp/evaluation/307996-1172511066/instance-307996-1172511066.cnf            

META MD5SUM SOLVER= 120abd248b069e44985635f055606c5a
MD5SUM BENCH=  cc733e9a0d26b1e09913a40f9eba8e3c

RANDOM SEED= 946770403

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node10.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:       1610376 kB
Buffers:         48388 kB
Cached:         283180 kB
SwapCached:          0 kB
Active:         215480 kB
Inactive:       161336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1610376 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1036 kB
Writeback:           0 kB
Mapped:          64132 kB
Slab:            54212 kB
Committed_AS:  1334476 kB
PageTables:       1836 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= 66560 MiB

End job on node10 on Mon Feb 26 17:31:57 UTC 2007