Trace number 1554087

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 19.837 19.8477

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 benchmark19.837
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 

19.79/19.84	c starting MXC with:
19.79/19.84	c cnf_path = HOME/instance-1554087-1238723523.cnf
19.79/19.84	c restart_strategy = auto
19.79/19.84	c sign_strategy = cached
19.79/19.84	c use_preprocessing = -1
19.79/19.84	c output_implicant = 1
19.79/19.84	c timeout_seconds = 0
19.79/19.84	c running SatELite... done
19.79/19.84	c 941 vars eliminated
19.79/19.84	c received 2 units and 4586 clauses from SatELite
19.79/19.84	c 942 assignments made, starting to guess now
19.79/19.84	c ===================================[MXC]=====================================
19.79/19.84	c | Conflicts |                Clause Statistics                   |   Vars   |
19.79/19.84	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
19.79/19.84	c =============================================================================
19.79/19.84	c |         0 |       0    1500     3086        0        0     nan |     2087 |
19.79/19.84	c |       100 |       0    1501     3086       99     1050    24.4 |     1145 |
19.79/19.84	c |       210 |       0    1501     3086      209     1105    24.7 |     1145 |
19.79/19.84	c |       441 |       0    1501     3086      440     1220    24.1 |     1145 |
19.79/19.84	c |       805 |       0    1504     3086      801     1402    24.6 |     1145 |
19.79/19.84	c |      1315 |       0    1504     3086     1311     1657    20.2 |     1145 |
19.79/19.84	c |      1986 |       0    1505     3086     1981     1993    16.9 |     1145 |
19.79/19.84	c |      2834 |       0    1505     3086     1826     2417    10.9 |     1145 |
19.79/19.84	c |      3876 |       0    1505     3086     2868     2938    10.7 |     1145 |
19.79/19.84	c |      5132 |       0    1505     3086     2623     3174    10.1 |     1145 |
19.79/19.84	c |      6623 |       0    1505     3086     2484     3363    10.0 |     1145 |
19.79/19.84	c |      8373 |       0    1505     3086     2499     3549     9.7 |     1145 |
19.79/19.84	c |     10408 |       0    1505     3086     2706     3731     9.2 |     1145 |
19.79/19.84	c |     12756 |       0    1505     3086     3145     3911     9.4 |     1145 |
19.79/19.84	c |     15449 |       0    1505     3086     3856     4088     8.8 |     1145 |
19.79/19.84	c |     18521 |       0    1506     3086     2765     4265     8.3 |     1145 |
19.79/19.84	c |     22010 |       0    1506     3086     4080     4440     9.7 |     1145 |
19.79/19.84	c |     25958 |       0    1506     3086     3518     4614     8.8 |     1145 |
19.79/19.84	c |     30411 |       0    1508     3086     3260     4791     9.0 |     1145 |
19.79/19.84	c |     35419 |       0    1510     3086     3374     4968     7.7 |     1145 |
19.79/19.84	c |     41038 |       0    1521     3086     3903     5158     9.2 |     1144 |
19.79/19.84	c |     47329 |       0    1522     3086     4960     5335     8.6 |     1144 |
19.79/19.84	c |     54360 |       0    1524     3086     3866     5514     8.4 |     1144 |
19.79/19.84	c |     62205 |       0    1536     3086     3248     5711     8.2 |     1143 |
19.79/19.84	c |     70945 |       0    1560     3086     3191     5930     7.0 |     1106 |
19.79/19.84	c |     74411 |       0    1626     3086     3566     6109     6.3 |      783 |
19.79/19.84	c ----- stats for thread 0 -----
19.79/19.84	c restarts: 0
19.79/19.84	c decisions: 76159
19.79/19.84	c propagations: 50612004
19.79/19.84	c conflicts: 74411
19.79/19.84	c 19.846s elapsed
19.79/19.84	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-1554087-1238723523/watcher-1554087-1238723523 -o /tmp/evaluation-result-1554087-1238723523/solver-1554087-1238723523 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1554087-1238723523.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 3/65 2625
/proc/meminfo: memFree=1837264/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=1728 CPUtime=0
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 276 0 0 0 0 0 0 0 18 0 1 0 1145014588 1769472 262 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 432 262 54 166 0 263 0

[startup+0.0957339 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 2625
/proc/meminfo: memFree=1837264/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=2480 CPUtime=0.09
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 483 0 0 0 9 0 0 0 18 0 1 0 1145014588 2539520 469 1992294400 134512640 135192793 4294956208 18446744073709551615 134551490 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 620 469 72 166 0 451 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2480

[startup+0.102735 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 2625
/proc/meminfo: memFree=1837264/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=2480 CPUtime=0.09
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 484 0 0 0 9 0 0 0 18 0 1 0 1145014588 2539520 470 1992294400 134512640 135192793 4294956208 18446744073709551615 134551099 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 620 470 72 166 0 451 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2480

[startup+0.30177 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 2625
/proc/meminfo: memFree=1837264/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=2744 CPUtime=0.29
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 531 0 0 0 29 0 0 0 19 0 1 0 1145014588 2809856 517 1992294400 134512640 135192793 4294956208 18446744073709551615 134533896 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 686 517 72 166 0 517 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2744

[startup+0.701849 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 2625
/proc/meminfo: memFree=1837264/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=2876 CPUtime=0.69
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 566 0 0 0 69 0 0 0 23 0 1 0 1145014588 2945024 552 1992294400 134512640 135192793 4294956208 18446744073709551615 134551322 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 719 552 73 166 0 550 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2876

[startup+1.50198 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 2626
/proc/meminfo: memFree=1835272/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=3016 CPUtime=1.49
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 607 0 0 0 149 0 0 0 25 0 1 0 1145014588 3088384 593 1992294400 134512640 135192793 4294956208 18446744073709551615 134533831 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 754 593 73 166 0 585 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3016

[startup+3.10127 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 2626
/proc/meminfo: memFree=1835016/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=3160 CPUtime=3.09
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 648 0 0 0 309 0 0 0 25 0 1 0 1145014588 3235840 634 1992294400 134512640 135192793 4294956208 18446744073709551615 134550883 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 790 634 73 166 0 621 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3160

[startup+6.30184 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 2626
/proc/meminfo: memFree=1834632/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=3436 CPUtime=6.29
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 706 0 0 0 629 0 0 0 25 0 1 0 1145014588 3518464 692 1992294400 134512640 135192793 4294956208 18446744073709551615 134551490 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 859 692 73 166 0 690 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3436

[startup+12.702 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 2626
/proc/meminfo: memFree=1834312/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=3720 CPUtime=12.69
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 777 0 0 0 1269 0 0 0 25 0 1 0 1145014588 3809280 763 1992294400 134512640 135192793 4294956208 18446744073709551615 134533866 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 930 763 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+15.9025 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 2626
/proc/meminfo: memFree=1834184/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=4016 CPUtime=15.89
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 813 0 0 0 1589 0 0 0 25 0 1 0 1145014588 4112384 799 1992294400 134512640 135192793 4294956208 18446744073709551615 134551480 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 1004 799 73 166 0 835 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 4016

[startup+17.5018 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 2626
/proc/meminfo: memFree=1834120/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=4016 CPUtime=17.49
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 827 0 0 0 1749 0 0 0 25 0 1 0 1145014588 4112384 813 1992294400 134512640 135192793 4294956208 18446744073709551615 134552272 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 1004 813 73 166 0 835 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 4016

[startup+19.1011 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 2626
/proc/meminfo: memFree=1833992/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=4164 CPUtime=19.09
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 858 0 0 0 1909 0 0 0 25 0 1 0 1145014588 4263936 844 1992294400 134512640 135192793 4294956208 18446744073709551615 134533186 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 1041 844 73 166 0 872 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 4164

[startup+19.5012 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 2626
/proc/meminfo: memFree=1833992/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=4164 CPUtime=19.48
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 858 0 0 0 1948 0 0 0 25 0 1 0 1145014588 4263936 844 1992294400 134512640 135192793 4294956208 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 1041 844 73 166 0 872 0
Current children cumulated CPU time (s) 19.48
Current children cumulated vsize (KiB) 4164

[startup+19.7012 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 2626
/proc/meminfo: memFree=1833992/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=4164 CPUtime=19.69
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 858 0 0 0 1969 0 0 0 25 0 1 0 1145014588 4263936 844 1992294400 134512640 135192793 4294956208 18446744073709551615 134532866 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 1041 844 73 166 0 872 0
Current children cumulated CPU time (s) 19.69
Current children cumulated vsize (KiB) 4164

[startup+19.8062 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 2626
/proc/meminfo: memFree=1833992/2055920 swapFree=4177732/4192956
[pid=2625] ppid=2623 vsize=4164 CPUtime=19.79
/proc/2625/stat : 2625 (mxc-sat09) R 2623 2625 2217 0 -1 4194304 858 0 0 0 1979 0 0 0 25 0 1 0 1145014588 4263936 844 1992294400 134512640 135192793 4294956208 18446744073709551615 134532632 0 0 4096 0 0 0 0 17 0 0 0
/proc/2625/statm: 1041 844 73 166 0 872 0
Current children cumulated CPU time (s) 19.79
Current children cumulated vsize (KiB) 4164

Child status: 20
Real time (s): 19.8477
CPU time (s): 19.837
CPU user time (s): 19.832
CPU system time (s): 0.004999
CPU usage (%): 99.9459
Max. virtual memory (cumulated for all children) (KiB): 4164

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.832
system time used= 0.004999
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= 78

runsolver used 0.022996 second user time and 0.058991 second system time

The end

Launcher Data 

Begin job on node56 at 2009-04-03 03:52:03
IDJOB=1554087
IDBENCH=70774
IDSOLVER=504
FILE ID=node56/1554087-1238723523
PBS_JOBID= 9085313
Free space on /tmp= 103044 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-1554087-1238723523/watcher-1554087-1238723523 -o /tmp/evaluation-result-1554087-1238723523/solver-1554087-1238723523 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1554087-1238723523.cnf

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

MD5SUM BENCH= cb3e934c498918abbc8bcf7f964c0d21
RANDOM SEED=1675886436

node56.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		: 3000.256
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		: 3000.256
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:       1837744 kB
Buffers:         29960 kB
Cached:         107312 kB
SwapCached:       9268 kB
Active:          23672 kB
Inactive:       124264 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1837744 kB
SwapTotal:     4192956 kB
SwapFree:      4177732 kB
Dirty:             772 kB
Writeback:           0 kB
Mapped:          16284 kB
Slab:            56232 kB
Committed_AS:  2868516 kB
PageTables:       1472 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= 103044 MiB
End job on node56 at 2009-04-03 03:52:23