Trace number 1554229

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 38.2822 38.2981

General information on the benchmark

NameAPPLICATIONS/
bitverif/minand/minand128.cnf
MD5SUM34e3afebec3eaf03cbcceb51b352993a
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark16.6065
Satisfiable
(Un)Satisfiability was proved
Number of variables53999
Number of clauses159692
Sum of the clauses size372612
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2106460
Number of clauses of size 353230
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

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 |                                                                             |
0.09/0.16	c |  Number of variables:         53999                                         |
0.09/0.16	c |  Number of clauses:          159690                                         |
0.09/0.16	c |  Parse time:                   0.15 s                                       |
1.00/1.10	c |  Simplification time:          0.92 s                                       |
1.00/1.10	c |                                                                             |
1.00/1.10	c ============================[ Search Statistics ]==============================
1.00/1.10	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
1.00/1.10	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
1.00/1.10	c ===============================================================================
1.10/1.12	c |       100 |    5466    62843   425839 |    23042       97     24 |  0.041 % |
1.10/1.15	c |       250 |    5466    62843   425839 |    25346      247     18 |  0.041 % |
1.10/1.16	c |       475 |    5434    62843   425839 |    27881      471     16 |  0.100 % |
1.10/1.18	c |       812 |    5432    62843   425839 |    30669      807     16 |  0.104 % |
1.19/1.23	c |      1318 |    5429    62843   425839 |    33736     1311     26 |  0.109 % |
1.29/1.31	c |      2077 |    5428    61043   422037 |    37110     1814     30 |  0.111 % |
1.39/1.41	c |      3216 |    5428    61043   422037 |    40821     2953     32 |  0.111 % |
1.59/1.60	c |      4924 |    5428    61043   422037 |    44903     4661     38 |  0.111 % |
1.89/1.92	c |      7486 |    5425    61031   421998 |    49393     7214     73 |  0.117 % |
2.49/2.50	c |     11330 |    5424    61029   421994 |    54332    11045     75 |  0.119 % |
3.59/3.62	c |     17096 |    5424    61029   421994 |    59766    16811     92 |  0.119 % |
5.29/5.37	c |     25745 |    5424    61029   421994 |    65742    25460    105 |  0.119 % |
8.49/8.50	c |     38719 |    5424    61029   421994 |    72317    38434    122 |  0.119 % |
14.68/14.75	c |     58180 |    5424    61029   421994 |    79548    57895    136 |  0.119 % |
27.48/27.52	c |     87372 |    5424    61029   421994 |    87503    28766    185 |  0.119 % |
38.17/38.28	c ===============================================================================
38.17/38.28	c restarts              : 294
38.17/38.28	c conflicts             : 112063         (2944 /sec)
38.17/38.28	c decisions             : 475427         (12488 /sec)
38.17/38.28	c propagations          : 27432156       (720567 /sec)
38.17/38.28	c conflict literals     : 18409320       (29.11 % deleted)
38.17/38.28	c Memory used           : 92.56 MB
38.17/38.28	c CPU time              : 38.0702 s
38.17/38.28	c 
38.17/38.28	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-1554229-1238725335/watcher-1554229-1238725335 -o /tmp/evaluation-result-1554229-1238725335/solver-1554229-1238725335 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1554229-1238725335.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): 1800 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 1.00 3/71 2127
/proc/meminfo: memFree=1758328/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=7640 CPUtime=0
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 457 0 0 0 0 0 0 0 18 0 1 0 1145196628 7823360 441 1992294400 4194304 5092341 548682068832 18446744073709551615 4515543 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 1910 441 63 219 0 1688 0

[startup+0.0976649 s]
/proc/loadavg: 1.00 1.00 1.00 3/71 2127
/proc/meminfo: memFree=1758328/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=16416 CPUtime=0.09
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 2933 0 0 0 8 1 0 0 18 0 1 0 1145196628 16809984 2716 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 4104 2717 63 219 0 3882 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16416

[startup+0.101666 s]
/proc/loadavg: 1.00 1.00 1.00 3/71 2127
/proc/meminfo: memFree=1758328/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=16548 CPUtime=0.09
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 3022 0 0 0 8 1 0 0 18 0 1 0 1145196628 16945152 2805 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 4137 2806 63 219 0 3915 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16548

[startup+0.301704 s]
/proc/loadavg: 1.00 1.00 1.00 3/71 2127
/proc/meminfo: memFree=1758328/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=23360 CPUtime=0.29
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 5391 0 0 0 27 2 0 0 19 0 1 0 1145196628 23920640 5026 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 5840 5027 87 219 0 5618 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 23360

[startup+0.701781 s]
/proc/loadavg: 1.00 1.00 1.00 3/71 2127
/proc/meminfo: memFree=1758328/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=31508 CPUtime=0.69
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 7488 0 0 0 67 2 0 0 22 0 1 0 1145196628 32264192 7123 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 7877 7123 87 219 0 7655 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 31508

[startup+1.50193 s]
/proc/loadavg: 1.00 1.00 1.00 2/72 2128
/proc/meminfo: memFree=1726896/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=28528 CPUtime=1.49
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 8956 0 0 0 146 3 0 0 25 0 1 0 1145196628 29212672 5949 1992294400 4194304 5092341 548682068832 18446744073709551615 4240676 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 7132 5949 103 219 0 6910 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 28528

[startup+3.10124 s]
/proc/loadavg: 1.00 1.00 1.00 2/72 2128
/proc/meminfo: memFree=1732592/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=31124 CPUtime=3.09
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 9963 0 0 0 305 4 0 0 25 0 1 0 1145196628 31870976 6956 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 7781 6956 103 219 0 7559 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 31124

[startup+6.30185 s]
/proc/loadavg: 1.00 1.00 1.00 2/72 2128
/proc/meminfo: memFree=1724400/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=40856 CPUtime=6.29
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 12299 0 0 0 623 6 0 0 25 0 1 0 1145196628 41836544 9292 1992294400 4194304 5092341 548682068832 18446744073709551615 4241075 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 10214 9292 103 219 0 9992 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 40856

[startup+12.7011 s]
/proc/loadavg: 1.00 1.00 1.00 2/72 2128
/proc/meminfo: memFree=1708032/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=62752 CPUtime=12.69
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 15944 0 0 0 1261 8 0 0 25 0 1 0 1145196628 64258048 12937 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 15688 12937 103 219 0 15466 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 62752

[startup+25.5015 s]
/proc/loadavg: 1.00 1.00 1.00 2/72 2128
/proc/meminfo: memFree=1678528/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=61936 CPUtime=25.48
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 28656 0 0 0 2532 16 0 0 25 0 1 0 1145196628 63422464 12605 1992294400 4194304 5092341 548682068832 18446744073709551615 4241332 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 15484 12605 103 219 0 15262 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 61936

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

[startup+31.9067 s]
/proc/loadavg: 1.00 1.00 1.00 2/72 2128
/proc/meminfo: memFree=1693952/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=75072 CPUtime=31.89
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 32165 0 0 0 3171 18 0 0 25 0 1 0 1145196628 76873728 16114 1992294400 4194304 5092341 548682068832 18446744073709551615 4248189 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 18768 16114 103 219 0 18546 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 75072

[startup+35.1013 s]
/proc/loadavg: 1.00 1.00 1.00 2/72 2128
/proc/meminfo: memFree=1689024/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=75072 CPUtime=35.08
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 33331 0 0 0 3489 19 0 0 25 0 1 0 1145196628 76873728 17280 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 18768 17280 103 219 0 18546 0
Current children cumulated CPU time (s) 35.08
Current children cumulated vsize (KiB) 75072

[startup+36.7017 s]
/proc/loadavg: 1.00 1.00 1.00 2/72 2128
/proc/meminfo: memFree=1687680/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=75072 CPUtime=36.68
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 33795 0 0 0 3649 19 0 0 25 0 1 0 1145196628 76873728 17744 1992294400 4194304 5092341 548682068832 18446744073709551615 4250751 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 18768 17744 103 219 0 18546 0
Current children cumulated CPU time (s) 36.68
Current children cumulated vsize (KiB) 75072

[startup+37.5018 s]
/proc/loadavg: 1.00 1.00 1.00 2/72 2128
/proc/meminfo: memFree=1686528/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=75072 CPUtime=37.47
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 33981 0 0 0 3728 19 0 0 25 0 1 0 1145196628 76873728 17930 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 18768 17930 103 219 0 18546 0
Current children cumulated CPU time (s) 37.47
Current children cumulated vsize (KiB) 75072

[startup+37.9029 s]
/proc/loadavg: 1.00 1.00 1.00 2/72 2128
/proc/meminfo: memFree=1686528/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=94780 CPUtime=37.88
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 34061 0 0 0 3769 19 0 0 25 0 1 0 1145196628 97054720 18010 1992294400 4194304 5092341 548682068832 18446744073709551615 4240611 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 23695 18010 103 219 0 23473 0
Current children cumulated CPU time (s) 37.88
Current children cumulated vsize (KiB) 94780

[startup+38.1019 s]
/proc/loadavg: 1.00 1.00 1.00 2/72 2128
/proc/meminfo: memFree=1686528/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=94780 CPUtime=38.07
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 34083 0 0 0 3788 19 0 0 25 0 1 0 1145196628 97054720 18032 1992294400 4194304 5092341 548682068832 18446744073709551615 4244035 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 23695 18032 103 219 0 23473 0
Current children cumulated CPU time (s) 38.07
Current children cumulated vsize (KiB) 94780

[startup+38.2019 s]
/proc/loadavg: 1.00 1.00 1.00 2/72 2128
/proc/meminfo: memFree=1686528/2055920 swapFree=4170332/4192956
[pid=2127] ppid=2125 vsize=94780 CPUtime=38.17
/proc/2127/stat : 2127 (minisat) R 2125 2127 1061 0 -1 4194304 34095 0 0 0 3798 19 0 0 25 0 1 0 1145196628 97054720 18044 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/2127/statm: 23695 18044 103 219 0 23473 0
Current children cumulated CPU time (s) 38.17
Current children cumulated vsize (KiB) 94780

Child status: 20
Real time (s): 38.2981
CPU time (s): 38.2822
CPU user time (s): 38.0712
CPU system time (s): 0.210967
CPU usage (%): 99.9585
Max. virtual memory (cumulated for all children) (KiB): 94780

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 38.0712
system time used= 0.210967
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 34107
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= 77

runsolver used 0.038994 second user time and 0.105983 second system time

The end

Launcher Data 

Begin job on node38 at 2009-04-03 04:22:15
IDJOB=1554229
IDBENCH=70776
IDSOLVER=546
FILE ID=node38/1554229-1238725335
PBS_JOBID= 9085307
Free space on /tmp= 66484 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/APPLICATIONS/bitverif/minand/minand128.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1554229-1238725335/watcher-1554229-1238725335 -o /tmp/evaluation-result-1554229-1238725335/solver-1554229-1238725335 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1554229-1238725335.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 34e3afebec3eaf03cbcceb51b352993a
RANDOM SEED=1930725745

node38.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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1758744 kB
Buffers:         73332 kB
Cached:         123924 kB
SwapCached:      11232 kB
Active:          51208 kB
Inactive:       158796 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1758744 kB
SwapTotal:     4192956 kB
SwapFree:      4170332 kB
Dirty:            3500 kB
Writeback:           0 kB
Mapped:          18440 kB
Slab:            72368 kB
Committed_AS:  3384832 kB
PageTables:       1988 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= 66484 MiB
End job on node38 at 2009-04-03 04:22:54