Trace number 1562095

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 2009-03-10SAT 6.72398 6.72751

General information on the benchmark

NameCRAFTED/
edgematching/all/em_7_4_9_all.cnf
MD5SUMd78c1359306a87fe47f1b830ca255359
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.791878
Satisfiable
(Un)Satisfiability was proved
Number of variables1677
Number of clauses40187
Sum of the clauses size98603
Maximum clause length25
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 228680
Number of clauses of size 38650
Number of clauses of size 4832
Number of clauses of size 51875
Number of clauses of size over 5150

Solver Data 

6.69/6.72	c starting MXC with:
6.69/6.72	c cnf_path = HOME/instance-1562095-1238770419.cnf
6.69/6.72	c restart_strategy = auto
6.69/6.72	c sign_strategy = cached
6.69/6.72	c use_preprocessing = -1
6.69/6.72	c output_implicant = 1
6.69/6.72	c timeout_seconds = 0
6.69/6.72	c running SatELite... done
6.69/6.72	c 5 vars eliminated
6.69/6.72	c received 0 units and 39787 clauses from SatELite
6.69/6.72	c 4 assignments made, starting to guess now
6.69/6.72	c ===================================[MXC]=====================================
6.69/6.72	c | Conflicts |                Clause Statistics                   |   Vars   |
6.69/6.72	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
6.69/6.72	c =============================================================================
6.69/6.72	c |         0 |       0   28660    11127        0        0     nan |     1677 |
6.69/6.72	c |       100 |       0   28660    11127      100     1050    24.7 |     1673 |
6.69/6.72	c |       210 |       0   28661    11127      209     1105    26.7 |     1673 |
6.69/6.72	c |       441 |       0   28484    11127      437     1220    25.6 |     1663 |
6.69/6.72	c |       805 |       0   28485    11127      800     1402    26.3 |     1663 |
6.69/6.72	c |      1315 |       0   28486    11127     1309     1657    26.5 |     1663 |
6.69/6.72	c |      1986 |       0   28406    11127     1976     1993    28.9 |     1658 |
6.69/6.72	c |      2834 |       0   28410    11127     1817     2417    30.4 |     1658 |
6.69/6.72	c |      3876 |       0   28352    11127     2851     2938    32.2 |     1654 |
6.69/6.72	c |      5132 |       0   28297    11127     2591     3566    30.8 |     1650 |
6.69/6.72	c |      6623 |       0   28302    11127     4077     4311    32.5 |     1650 |
6.69/6.72	c |      8373 |       0   28306    11127     3553     5186    32.3 |     1650 |
6.69/6.72	c |     10408 |       0   28312    11127     5582     6204    34.1 |     1650 |
6.69/6.72	c |     12756 |       0   28316    11127     4512     7378    32.8 |     1650 |
6.69/6.72	c |     15449 |       0   28189    11127     7200     8724    35.5 |     1641 |
6.69/6.72	c |     18521 |       0   28193    11127     5146    10260    32.8 |     1641 |
6.69/6.72	c |     22010 |       0   28199    11127     8629    12005    36.0 |     1641 |
6.69/6.72	c |     25958 |       0   28206    11127    12570    13979    37.8 |     1641 |
6.69/6.72	c |     30411 |       0   28209    11127     9324    16205    34.9 |     1641 |
6.69/6.72	c |     35419 |       0   28211    11127    14330    18709    38.9 |     1641 |
6.69/6.72	c |     41038 |       0   28214    11127    19946    21519    43.6 |     1641 |
6.69/6.72	c |     47329 |       0   28166    11127    14686    24664    37.2 |     1637 |
6.69/6.72	c |     54360 |       0   28173    11127    21710    28180    41.3 |     1637 |
6.69/6.72	c |     56359 |       0   28174    11127    23708    29179    42.5 |     1637 |
6.69/6.72	c ----- stats for thread 0 -----
6.69/6.72	c restarts: 242
6.69/6.72	c decisions: 183047
6.69/6.72	c propagations: 5826392
6.69/6.72	c conflicts: 56359
6.69/6.72	c 6.723s elapsed
6.69/6.72	s SATISFIABLE
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Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1562095-1238770419/watcher-1562095-1238770419 -o /tmp/evaluation-result-1562095-1238770419/solver-1562095-1238770419 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1562095-1238770419.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 3/81 2056
/proc/meminfo: memFree=1859392/2055920 swapFree=4174556/4192956
[pid=2056] ppid=2054 vsize=2140 CPUtime=0
/proc/2056/stat : 2056 (mxc-sat09) R 2054 2056 1950 0 -1 4194304 398 0 0 0 0 0 0 0 19 0 1 0 753936934 2191360 384 1992294400 134512640 135192793 4294956224 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/2056/statm: 535 384 54 166 0 366 0

[startup+0.0165111 s]
/proc/loadavg: 1.00 1.00 1.00 3/81 2056
/proc/meminfo: memFree=1859392/2055920 swapFree=4174556/4192956
[pid=2056] ppid=2054 vsize=2920 CPUtime=0.01
/proc/2056/stat : 2056 (mxc-sat09) R 2054 2056 1950 0 -1 4194304 605 0 0 0 1 0 0 0 19 0 1 0 753936934 2990080 591 1992294400 134512640 135192793 4294956224 18446744073709551615 134577000 0 0 4096 0 0 0 0 17 1 0 0
/proc/2056/statm: 730 592 54 166 0 561 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2920

[startup+0.102527 s]
/proc/loadavg: 1.00 1.00 1.00 3/81 2056
/proc/meminfo: memFree=1859392/2055920 swapFree=4174556/4192956
[pid=2056] ppid=2054 vsize=3656 CPUtime=0.09
/proc/2056/stat : 2056 (mxc-sat09) R 2054 2056 1950 0 -1 4194304 918 0 0 0 9 0 0 0 19 0 1 0 753936934 3743744 758 1992294400 134512640 135192793 4294956224 18446744073709551615 134567785 0 0 4096 0 0 0 0 17 1 0 0
/proc/2056/statm: 914 758 56 166 0 745 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3656

[startup+0.301564 s]
/proc/loadavg: 1.00 1.00 1.00 3/81 2056
/proc/meminfo: memFree=1859392/2055920 swapFree=4174556/4192956
[pid=2056] ppid=2054 vsize=5404 CPUtime=0.29
/proc/2056/stat : 2056 (mxc-sat09) R 2054 2056 1950 0 -1 4194304 1458 0 0 0 29 0 0 0 21 0 1 0 753936934 5533696 1219 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/2056/statm: 1351 1219 73 166 0 1182 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5404

[startup+0.702643 s]
/proc/loadavg: 1.00 1.00 1.00 3/81 2056
/proc/meminfo: memFree=1859392/2055920 swapFree=4174556/4192956
[pid=2056] ppid=2054 vsize=6196 CPUtime=0.69
/proc/2056/stat : 2056 (mxc-sat09) R 2054 2056 1950 0 -1 4194304 1677 0 0 0 69 0 0 0 25 0 1 0 753936934 6344704 1438 1992294400 134512640 135192793 4294956224 18446744073709551615 134552288 0 0 4096 0 0 0 0 17 1 0 0
/proc/2056/statm: 1549 1438 73 166 0 1380 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6196

[startup+1.5018 s]
/proc/loadavg: 1.00 1.00 1.00 2/82 2057
/proc/meminfo: memFree=1853432/2055920 swapFree=4174556/4192956
[pid=2056] ppid=2054 vsize=7964 CPUtime=1.49
/proc/2056/stat : 2056 (mxc-sat09) R 2054 2056 1950 0 -1 4194304 2104 0 0 0 149 0 0 0 25 0 1 0 753936934 8155136 1865 1992294400 134512640 135192793 4294956224 18446744073709551615 134552427 0 0 4096 0 0 0 0 17 1 0 0
/proc/2056/statm: 1991 1865 73 166 0 1822 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7964

[startup+3.10111 s]
/proc/loadavg: 1.00 1.00 1.00 2/82 2057
/proc/meminfo: memFree=1851256/2055920 swapFree=4174556/4192956
[pid=2056] ppid=2054 vsize=9680 CPUtime=3.09
/proc/2056/stat : 2056 (mxc-sat09) R 2054 2056 1950 0 -1 4194304 2524 0 0 0 309 0 0 0 25 0 1 0 753936934 9912320 2285 1992294400 134512640 135192793 4294956224 18446744073709551615 134533808 0 0 4096 0 0 0 0 17 1 0 0
/proc/2056/statm: 2420 2285 73 166 0 2251 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 9680

[startup+6.30173 s]
/proc/loadavg: 1.00 1.00 1.00 2/82 2057
/proc/meminfo: memFree=1847480/2055920 swapFree=4174556/4192956
[pid=2056] ppid=2054 vsize=12560 CPUtime=6.29
/proc/2056/stat : 2056 (mxc-sat09) R 2054 2056 1950 0 -1 4194304 3239 0 0 0 629 0 0 0 25 0 1 0 753936934 12861440 3000 1992294400 134512640 135192793 4294956224 18446744073709551615 134533924 0 0 4096 0 0 0 0 17 1 0 0
/proc/2056/statm: 3140 3000 73 166 0 2971 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 12560

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

[startup+6.70181 s]
/proc/loadavg: 1.00 1.00 1.00 2/82 2057
/proc/meminfo: memFree=1847416/2055920 swapFree=4174556/4192956
[pid=2056] ppid=2054 vsize=12692 CPUtime=6.69
/proc/2056/stat : 2056 (mxc-sat09) R 2054 2056 1950 0 -1 4194304 3276 0 0 0 669 0 0 0 25 0 1 0 753936934 12996608 3037 1992294400 134512640 135192793 4294956224 18446744073709551615 134534170 0 0 4096 0 0 0 0 17 1 0 0
/proc/2056/statm: 3173 3037 73 166 0 3004 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 12692

Child status: 10
Real time (s): 6.72751
CPU time (s): 6.72398
CPU user time (s): 6.71398
CPU system time (s): 0.009998
CPU usage (%): 99.9475
Max. virtual memory (cumulated for all children) (KiB): 12692

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.71398
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3289
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= 5
involuntary context switches= 3

runsolver used 0.016997 second user time and 0.025996 second system time

The end

Launcher Data 

Begin job on node88 at 2009-04-03 16:53:39
IDJOB=1562095
IDBENCH=70928
IDSOLVER=504
FILE ID=node88/1562095-1238770419
PBS_JOBID= 9085556
Free space on /tmp= 66532 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/APPLICATIONS/edgematching/all/em_7_4_9_all.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1562095-1238770419/watcher-1562095-1238770419 -o /tmp/evaluation-result-1562095-1238770419/solver-1562095-1238770419 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1562095-1238770419.cnf

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

MD5SUM BENCH= d78c1359306a87fe47f1b830ca255359
RANDOM SEED=98856025

node88.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		: 3000.281
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		: 3000.281
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1860704 kB
Buffers:         11640 kB
Cached:         112560 kB
SwapCached:       7448 kB
Active:          19988 kB
Inactive:       113360 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1860704 kB
SwapTotal:     4192956 kB
SwapFree:      4174556 kB
Dirty:            1264 kB
Writeback:           0 kB
Mapped:          14788 kB
Slab:            46116 kB
Committed_AS:  1932164 kB
PageTables:       2664 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= 66532 MiB
End job on node88 at 2009-04-03 16:53:46