Trace number 1773677

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
MXC 2009-03-10UNSAT 21.2768 21.2834

General information on the benchmark

NameAPPLICATIONS/bitverif/countbitsrotate/
countbitsrotate016.cnf
MD5SUMcb3e934c498918abbc8bcf7f964c0d21
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark21.2768
Satisfiable
(Un)Satisfiability was proved
Number of variables2087
Number of clauses6212
Sum of the clauses size14492
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 24140
Number of clauses of size 32070
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

21.19/21.28	c starting MXC with:
21.19/21.28	c cnf_path = HOME/instance-1773677-1241302428.cnf
21.19/21.28	c restart_strategy = auto
21.19/21.28	c sign_strategy = cached
21.19/21.28	c use_preprocessing = -1
21.19/21.28	c output_implicant = 1
21.19/21.28	c timeout_seconds = 0
21.19/21.28	c running SatELite... done
21.19/21.28	c 941 vars eliminated
21.19/21.28	c received 2 units and 4586 clauses from SatELite
21.19/21.28	c 942 assignments made, starting to guess now
21.19/21.28	c ===================================[MXC]=====================================
21.19/21.28	c | Conflicts |                Clause Statistics                   |   Vars   |
21.19/21.28	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
21.19/21.28	c =============================================================================
21.19/21.28	c |         0 |       0    1500     3086        0        0     nan |     2087 |
21.19/21.28	c |       100 |       0    1501     3086       99     1050    24.4 |     1145 |
21.19/21.28	c |       210 |       0    1501     3086      209     1105    24.7 |     1145 |
21.19/21.28	c |       441 |       0    1501     3086      440     1220    24.1 |     1145 |
21.19/21.28	c |       805 |       0    1504     3086      801     1402    24.6 |     1145 |
21.19/21.28	c |      1315 |       0    1504     3086     1311     1657    20.2 |     1145 |
21.19/21.28	c |      1986 |       0    1505     3086     1981     1993    16.9 |     1145 |
21.19/21.28	c |      2834 |       0    1505     3086     1826     2417    10.9 |     1145 |
21.19/21.28	c |      3876 |       0    1505     3086     2868     2938    10.7 |     1145 |
21.19/21.28	c |      5132 |       0    1505     3086     2623     3174    10.1 |     1145 |
21.19/21.28	c |      6623 |       0    1505     3086     2484     3363    10.0 |     1145 |
21.19/21.28	c |      8373 |       0    1505     3086     2499     3549     9.7 |     1145 |
21.19/21.28	c |     10408 |       0    1505     3086     2706     3731     9.2 |     1145 |
21.19/21.28	c |     12756 |       0    1505     3086     3145     3911     9.4 |     1145 |
21.19/21.28	c |     15449 |       0    1505     3086     3856     4088     8.8 |     1145 |
21.19/21.28	c |     18521 |       0    1506     3086     2765     4265     8.3 |     1145 |
21.19/21.28	c |     22010 |       0    1506     3086     4080     4440     9.7 |     1145 |
21.19/21.28	c |     25958 |       0    1506     3086     3518     4614     8.8 |     1145 |
21.19/21.28	c |     30411 |       0    1508     3086     3260     4791     9.0 |     1145 |
21.19/21.28	c |     35419 |       0    1510     3086     3374     4968     7.7 |     1145 |
21.19/21.28	c |     41038 |       0    1521     3086     3903     5158     9.2 |     1144 |
21.19/21.28	c |     47329 |       0    1522     3086     4960     5335     8.6 |     1144 |
21.19/21.28	c |     54360 |       0    1524     3086     3866     5514     8.4 |     1144 |
21.19/21.28	c |     62205 |       0    1536     3086     3248     5711     8.2 |     1143 |
21.19/21.28	c |     70945 |       0    1560     3086     3191     5930     7.0 |     1106 |
21.19/21.28	c |     74411 |       0    1626     3086     3566     6109     6.3 |      783 |
21.19/21.28	c ----- stats for thread 0 -----
21.19/21.28	c restarts: 0
21.19/21.28	c decisions: 76159
21.19/21.28	c propagations: 50612004
21.19/21.28	c conflicts: 74411
21.19/21.28	c 21.282s elapsed
21.19/21.28	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-1773677-1241302428/watcher-1773677-1241302428 -o /tmp/evaluation-result-1773677-1241302428/solver-1773677-1241302428 -C 10000 -W 12000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1773677-1241302428.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 24098
/proc/meminfo: memFree=1203904/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=1728 CPUtime=0
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 268 0 0 0 0 0 0 0 18 0 1 0 158276555 1769472 254 1992294400 134512640 135192793 4294956224 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 432 257 54 166 0 263 0

[startup+0.0807261 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 24098
/proc/meminfo: memFree=1203904/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=2480 CPUtime=0.07
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 478 0 0 0 7 0 0 0 18 0 1 0 158276555 2539520 464 1992294400 134512640 135192793 4294956224 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 620 464 72 166 0 451 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 2480

[startup+0.101727 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 24098
/proc/meminfo: memFree=1203904/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=2480 CPUtime=0.1
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 483 0 0 0 10 0 0 0 18 0 1 0 158276555 2539520 469 1992294400 134512640 135192793 4294956224 18446744073709551615 134552279 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 620 469 72 166 0 451 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2480

[startup+0.301749 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 24098
/proc/meminfo: memFree=1203904/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=2612 CPUtime=0.3
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 526 0 0 0 30 0 0 0 19 0 1 0 158276555 2674688 512 1992294400 134512640 135192793 4294956224 18446744073709551615 134552346 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 653 512 72 166 0 484 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2612

[startup+0.701794 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 24098
/proc/meminfo: memFree=1203904/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=2876 CPUtime=0.7
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 566 0 0 0 70 0 0 0 22 0 1 0 158276555 2945024 552 1992294400 134512640 135192793 4294956224 18446744073709551615 134551088 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 719 552 73 166 0 550 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 2876

[startup+1.50188 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 24099
/proc/meminfo: memFree=1201848/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=3016 CPUtime=1.5
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 606 0 0 0 150 0 0 0 25 0 1 0 158276555 3088384 592 1992294400 134512640 135192793 4294956224 18446744073709551615 134551016 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 754 592 73 166 0 585 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 3016

[startup+3.10106 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 24099
/proc/meminfo: memFree=1201592/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=3160 CPUtime=3.09
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 645 0 0 0 309 0 0 0 25 0 1 0 158276555 3235840 631 1992294400 134512640 135192793 4294956224 18446744073709551615 134551404 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 790 631 73 166 0 621 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3160

[startup+6.30142 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 24099
/proc/meminfo: memFree=1201208/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=3436 CPUtime=6.29
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 702 0 0 0 629 0 0 0 25 0 1 0 158276555 3518464 688 1992294400 134512640 135192793 4294956224 18446744073709551615 134551561 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 859 688 73 166 0 690 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3436

[startup+12.7011 s]
/proc/loadavg: 1.07 1.02 1.00 2/65 24099
/proc/meminfo: memFree=1200888/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=3720 CPUtime=12.69
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 765 0 0 0 1269 0 0 0 25 0 1 0 158276555 3809280 751 1992294400 134512640 135192793 4294956224 18446744073709551615 134612714 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 930 751 73 166 0 761 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3720

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

[startup+15.9015 s]
/proc/loadavg: 1.07 1.02 1.00 2/65 24099
/proc/meminfo: memFree=1200760/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=3860 CPUtime=15.89
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 801 0 0 0 1589 0 0 0 25 0 1 0 158276555 3952640 787 1992294400 134512640 135192793 4294956224 18446744073709551615 134533892 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 965 787 73 166 0 796 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 3860

[startup+19.1018 s]
/proc/loadavg: 1.07 1.02 1.00 2/65 24099
/proc/meminfo: memFree=1200632/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=4016 CPUtime=19.09
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 832 0 0 0 1909 0 0 0 25 0 1 0 158276555 4112384 818 1992294400 134512640 135192793 4294956224 18446744073709551615 134534022 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 1004 818 73 166 0 835 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 4016

[startup+19.9019 s]
/proc/loadavg: 1.07 1.02 1.00 2/65 24099
/proc/meminfo: memFree=1200568/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=4164 CPUtime=19.89
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 849 0 0 0 1989 0 0 0 25 0 1 0 158276555 4263936 835 1992294400 134512640 135192793 4294956224 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 1041 835 73 166 0 872 0
Current children cumulated CPU time (s) 19.89
Current children cumulated vsize (KiB) 4164

[startup+20.701 s]
/proc/loadavg: 1.07 1.02 1.00 2/65 24099
/proc/meminfo: memFree=1200568/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=4164 CPUtime=20.69
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 858 0 0 0 2069 0 0 0 25 0 1 0 158276555 4263936 844 1992294400 134512640 135192793 4294956224 18446744073709551615 134551478 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 1041 844 73 166 0 872 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 4164

[startup+21.1011 s]
/proc/loadavg: 1.06 1.02 1.00 2/65 24099
/proc/meminfo: memFree=1200504/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=4164 CPUtime=21.09
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 858 0 0 0 2109 0 0 0 25 0 1 0 158276555 4263936 844 1992294400 134512640 135192793 4294956224 18446744073709551615 134550392 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 1041 844 73 166 0 872 0
Current children cumulated CPU time (s) 21.09
Current children cumulated vsize (KiB) 4164

[startup+21.2011 s]
/proc/loadavg: 1.06 1.02 1.00 2/65 24099
/proc/meminfo: memFree=1200504/2055920 swapFree=4192812/4192956
[pid=24098] ppid=24096 vsize=4164 CPUtime=21.19
/proc/24098/stat : 24098 (mxc-sat09) R 24096 24098 23865 0 -1 4194304 858 0 0 0 2119 0 0 0 25 0 1 0 158276555 4263936 844 1992294400 134512640 135192793 4294956224 18446744073709551615 134550893 0 0 4096 0 0 0 0 17 1 0 0
/proc/24098/statm: 1041 844 73 166 0 872 0
Current children cumulated CPU time (s) 21.19
Current children cumulated vsize (KiB) 4164

Child status: 20
Real time (s): 21.2834
CPU time (s): 21.2768
CPU user time (s): 21.2728
CPU system time (s): 0.003999
CPU usage (%): 99.9687
Max. virtual memory (cumulated for all children) (KiB): 4164

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.2728
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 861
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= 58

runsolver used 0.015997 second user time and 0.055991 second system time

The end

Launcher Data 

Begin job on node9 at 2009-05-03 00:13:48
IDJOB=1773677
IDBENCH=70774
IDSOLVER=613
FILE ID=node9/1773677-1241302428
PBS_JOBID= 9225176
Free space on /tmp= 66560 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/APPLICATIONS/bitverif/countbitsrotate/countbitsrotate016.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773677-1241302428/watcher-1773677-1241302428 -o /tmp/evaluation-result-1773677-1241302428/solver-1773677-1241302428 -C 10000 -W 12000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1773677-1241302428.cnf

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

MD5SUM BENCH= cb3e934c498918abbc8bcf7f964c0d21
RANDOM SEED=1728551864

node9.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		: 3000.240
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		: 3000.240
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:       1204320 kB
Buffers:         88608 kB
Cached:         649124 kB
SwapCached:          0 kB
Active:         104812 kB
Inactive:       646880 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1204320 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             776 kB
Writeback:           0 kB
Mapped:          23716 kB
Slab:            85896 kB
Committed_AS:   669892 kB
PageTables:       1400 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 node9 at 2009-05-03 00:14:09