Trace number 1773447

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 19.767 19.7725

General information on the benchmark

Namevelev-engi-uns-1.0-4nd.cnf
MD5SUM700f8e86139a93fca212e22efa0f7d2b
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark16.0926
Satisfiable
(Un)Satisfiability was proved
Number of variables7000
Number of clauses67586
Sum of the clauses size190944
Maximum clause length58
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 256649
Number of clauses of size 35901
Number of clauses of size 4437
Number of clauses of size 5591
Number of clauses of size over 54007

Solver Data 

19.69/19.76	c starting MXC with:
19.69/19.76	c cnf_path = HOME/instance-1773447-1241299776.cnf
19.69/19.76	c restart_strategy = auto
19.69/19.76	c sign_strategy = cached
19.69/19.76	c use_preprocessing = -1
19.69/19.76	c output_implicant = 1
19.69/19.76	c timeout_seconds = 0
19.69/19.76	c running SatELite... done
19.69/19.76	c 1857 vars eliminated
19.69/19.76	c received 88 units and 62306 clauses from SatELite
19.69/19.76	c 1944 assignments made, starting to guess now
19.69/19.76	c ===================================[MXC]=====================================
19.69/19.76	c | Conflicts |                Clause Statistics                   |   Vars   |
19.69/19.76	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
19.69/19.76	c =============================================================================
19.69/19.76	c |         0 |       0   47009    15297        0        0     nan |     7000 |
19.69/19.76	c |       100 |       0   46513    15108       88     1050    23.5 |     5009 |
19.69/19.76	c |       210 |       0   46513    15108      198     1105    26.0 |     5009 |
19.69/19.76	c |       441 |       0   46514    15108      428     1220    27.5 |     5009 |
19.69/19.76	c |       805 |       0   46518    15108      788     1402    26.7 |     5009 |
19.69/19.76	c |      1315 |       0   46520    15108     1296     1657    29.1 |     5009 |
19.69/19.76	c |      1986 |       0   46524    15108     1963     1993    29.8 |     5009 |
19.69/19.76	c |      2834 |       0   46528    15107     1785     2417    26.7 |     5008 |
19.69/19.76	c |      3876 |       0   46537    15107     2818     2938    28.7 |     5008 |
19.69/19.76	c |      5132 |       0   46543    15107     2544     3566    29.8 |     5008 |
19.69/19.76	c |      6623 |       0   46548    15107     4030     4311    30.5 |     5008 |
19.69/19.76	c |      8373 |       0   46552    15107     3486     5186    31.1 |     5008 |
19.69/19.76	c |     10408 |       0   46556    15107     5517     6204    30.6 |     5008 |
19.69/19.76	c |     12756 |       0   46558    15107     4430     7378    29.4 |     5008 |
19.69/19.76	c |     15449 |       0   46561    15107     7120     8724    29.9 |     5008 |
19.69/19.76	c |     18521 |       0   46568    15107    10185    10260    30.3 |     5008 |
19.69/19.76	c |     22010 |       0   46572    15107     8504    12005    30.7 |     5008 |
19.69/19.76	c |     25958 |       0   46575    15107    12449    13979    29.9 |     5008 |
19.69/19.76	c |     30411 |       0   46582    15107     9140    16205    29.0 |     5008 |
19.69/19.76	c |     35419 |       0   46604    15107    14126    18709    32.7 |     5008 |
19.69/19.76	c |     41038 |       0   46600    15107    19731    21519    33.4 |     5007 |
19.69/19.76	c |     47329 |       0   46607    15107    14366    24664    31.4 |     5007 |
19.69/19.76	c |     54360 |       0   46611    15107    21393    28180    32.5 |     5007 |
19.69/19.76	c |     62205 |       0   46611    15107    29238    32102    33.7 |     5007 |
19.69/19.76	c |     70945 |       0   46590    15107    20491    36472    32.9 |     5005 |
19.69/19.76	c |     80669 |       0   46587    15107    30203    41334    35.0 |     5004 |
19.69/19.76	c |     91476 |       0   46562    15107    40997    46738    35.5 |     5001 |
19.69/19.76	c |    100272 |       0   46593    15107    49747    51136    35.9 |      776 |
19.69/19.76	c ----- stats for thread 0 -----
19.69/19.76	c restarts: 349
19.69/19.76	c decisions: 174098
19.69/19.76	c propagations: 32289042
19.69/19.76	c conflicts: 100272
19.69/19.76	c 19.766s elapsed
19.69/19.76	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-1773447-1241299776/watcher-1773447-1241299776 -o /tmp/evaluation-result-1773447-1241299776/solver-1773447-1241299776 -C 10000 -W 12000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1773447-1241299776.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: 1.06 2.38 3.32 3/64 26984
/proc/meminfo: memFree=1928760/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=3248 CPUtime=0
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 641 0 0 0 0 0 0 0 18 0 1 0 158005420 3325952 628 1992294400 134512640 135192793 4294956224 18446744073709551615 134568472 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 812 630 53 166 0 643 0

[startup+0.0296119 s]
/proc/loadavg: 1.06 2.38 3.32 3/64 26984
/proc/meminfo: memFree=1928760/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=5016 CPUtime=0.02
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 1079 0 0 0 2 0 0 0 18 0 1 0 158005420 5136384 1065 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 1254 1065 54 166 0 1085 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5016

[startup+0.101627 s]
/proc/loadavg: 1.06 2.38 3.32 3/64 26984
/proc/meminfo: memFree=1928760/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=6500 CPUtime=0.09
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 1679 0 0 0 8 1 0 0 18 0 1 0 158005420 6656000 1392 1992294400 134512640 135192793 4294956224 18446744073709551615 134568160 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 1625 1392 56 166 0 1456 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6500

[startup+0.301647 s]
/proc/loadavg: 1.06 2.38 3.32 3/64 26984
/proc/meminfo: memFree=1928760/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=8400 CPUtime=0.29
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 2145 0 0 0 28 1 0 0 19 0 1 0 158005420 8601600 1858 1992294400 134512640 135192793 4294956224 18446744073709551615 134560269 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 2100 1859 56 166 0 1931 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8400

[startup+0.701689 s]
/proc/loadavg: 1.06 2.38 3.32 3/64 26984
/proc/meminfo: memFree=1928760/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=9568 CPUtime=0.69
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 2680 0 0 0 68 1 0 0 22 0 1 0 158005420 9797632 2227 1992294400 134512640 135192793 4294956224 18446744073709551615 134532651 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 2392 2227 73 166 0 2223 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9568

[startup+1.50178 s]
/proc/loadavg: 1.05 2.36 3.31 2/65 26985
/proc/meminfo: memFree=1919728/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=10368 CPUtime=1.49
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 2880 0 0 0 148 1 0 0 25 0 1 0 158005420 10616832 2427 1992294400 134512640 135192793 4294956224 18446744073709551615 134534029 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 2592 2427 73 166 0 2423 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10368

[startup+3.10195 s]
/proc/loadavg: 1.05 2.36 3.31 2/65 26985
/proc/meminfo: memFree=1918512/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=11976 CPUtime=3.09
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 3279 0 0 0 307 2 0 0 25 0 1 0 158005420 12263424 2826 1992294400 134512640 135192793 4294956224 18446744073709551615 134533933 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 2994 2826 73 166 0 2825 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 11976

[startup+6.3023 s]
/proc/loadavg: 1.05 2.34 3.30 2/65 26985
/proc/meminfo: memFree=1915960/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=14140 CPUtime=6.29
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 3789 0 0 0 627 2 0 0 25 0 1 0 158005420 14479360 3336 1992294400 134512640 135192793 4294956224 18446744073709551615 134551064 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 3535 3336 73 166 0 3366 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 14140

[startup+12.702 s]
/proc/loadavg: 1.04 2.31 3.29 2/65 26985
/proc/meminfo: memFree=1910136/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=19396 CPUtime=12.69
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 5077 0 0 0 1266 3 0 0 25 0 1 0 158005420 19861504 4624 1992294400 134512640 135192793 4294956224 18446744073709551615 134534116 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 4849 4624 73 166 0 4680 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 19396

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

[startup+15.9013 s]
/proc/loadavg: 1.04 2.29 3.27 2/65 26985
/proc/meminfo: memFree=1909752/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=20296 CPUtime=15.89
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 5244 0 0 0 1586 3 0 0 25 0 1 0 158005420 20783104 4791 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 5074 4791 73 166 0 4905 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 20296

[startup+17.5015 s]
/proc/loadavg: 1.04 2.29 3.27 2/65 26985
/proc/meminfo: memFree=1907832/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=22032 CPUtime=17.49
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 5663 0 0 0 1746 3 0 0 25 0 1 0 158005420 22560768 5210 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 5508 5210 73 166 0 5339 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 22032

[startup+19.1017 s]
/proc/loadavg: 1.04 2.29 3.27 2/65 26985
/proc/meminfo: memFree=1906744/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=23480 CPUtime=19.08
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 6048 0 0 0 1905 3 0 0 25 0 1 0 158005420 24043520 5595 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 5870 5595 73 166 0 5701 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 23480

[startup+19.5017 s]
/proc/loadavg: 1.04 2.29 3.27 2/65 26985
/proc/meminfo: memFree=1906744/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=23808 CPUtime=19.49
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 6117 0 0 0 1945 4 0 0 25 0 1 0 158005420 24379392 5664 1992294400 134512640 135192793 4294956224 18446744073709551615 134533236 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 5952 5664 73 166 0 5783 0
Current children cumulated CPU time (s) 19.49
Current children cumulated vsize (KiB) 23808

[startup+19.7017 s]
/proc/loadavg: 1.04 2.29 3.27 2/65 26985
/proc/meminfo: memFree=1905848/2055920 swapFree=4181296/4192956
[pid=26984] ppid=26982 vsize=23944 CPUtime=19.69
/proc/26984/stat : 26984 (mxc-sat09) R 26982 26984 26920 0 -1 4194304 6153 0 0 0 1965 4 0 0 25 0 1 0 158005420 24518656 5700 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/26984/statm: 5986 5700 73 166 0 5817 0
Current children cumulated CPU time (s) 19.69
Current children cumulated vsize (KiB) 23944

Child status: 20
Real time (s): 19.7725
CPU time (s): 19.767
CPU user time (s): 19.722
CPU system time (s): 0.044993
CPU usage (%): 99.9724
Max. virtual memory (cumulated for all children) (KiB): 23944

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.722
system time used= 0.044993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6162
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= 33

runsolver used 0.025996 second user time and 0.046992 second system time

The end

Launcher Data 

Begin job on node47 at 2009-05-02 23:29:36
IDJOB=1773447
IDBENCH=69594
IDSOLVER=613
FILE ID=node47/1773447-1241299776
PBS_JOBID= 9225198
Free space on /tmp= 66496 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT_RACE08/cnf/velev-engi-uns-1.0-4nd.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773447-1241299776/watcher-1773447-1241299776 -o /tmp/evaluation-result-1773447-1241299776/solver-1773447-1241299776 -C 10000 -W 12000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1773447-1241299776.cnf

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

MD5SUM BENCH= 700f8e86139a93fca212e22efa0f7d2b
RANDOM SEED=72507415

node47.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		: 3000.212
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		: 3000.212
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:       1929240 kB
Buffers:          7976 kB
Cached:          42456 kB
SwapCached:       5260 kB
Active:          21988 kB
Inactive:        36124 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1929240 kB
SwapTotal:     4192956 kB
SwapFree:      4181296 kB
Dirty:            1800 kB
Writeback:           0 kB
Mapped:          13600 kB
Slab:            54584 kB
Committed_AS:   741620 kB
PageTables:       1448 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= 66496 MiB
End job on node47 at 2009-05-02 23:29:56