Trace number 1555023

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 26.414 26.4206

General information on the benchmark

NameAPPLICATIONS/bitverif/
icbrt/icbrt1_32.cnf
MD5SUM157e258753171ede0eac48b41cfa7b1d
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark10.2104
Satisfiable
(Un)Satisfiability was proved
Number of variables11309
Number of clauses33833
Sum of the clauses size78941
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 222554
Number of clauses of size 311277
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

26.38/26.41	c starting MXC with:
26.38/26.41	c cnf_path = HOME/instance-1555023-1238736399.cnf
26.38/26.41	c restart_strategy = auto
26.38/26.41	c sign_strategy = cached
26.38/26.41	c use_preprocessing = -1
26.38/26.41	c output_implicant = 1
26.38/26.41	c timeout_seconds = 0
26.38/26.41	c running SatELite... done
26.38/26.41	c 5832 vars eliminated
26.38/26.41	c received 4 units and 24433 clauses from SatELite
26.38/26.41	c 5835 assignments made, starting to guess now
26.38/26.41	c ===================================[MXC]=====================================
26.38/26.41	c | Conflicts |                Clause Statistics                   |   Vars   |
26.38/26.41	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
26.38/26.41	c =============================================================================
26.38/26.41	c |         0 |       0    8175    16258        0        0     nan |    11309 |
26.38/26.41	c |       100 |       0    8175    16258      100     1050    31.5 |     5474 |
26.38/26.41	c |       210 |       0    8175    16258      210     1105    38.1 |     5474 |
26.38/26.41	c |       441 |       0    8175    16258      441     1220    31.6 |     5474 |
26.38/26.41	c |       805 |       0    8178    16258      802     1402    28.0 |     5474 |
26.38/26.41	c |      1315 |       0    8178    16258     1312     1657    27.9 |     5474 |
26.38/26.41	c |      1986 |       0    8178    16258     1983     1993    26.8 |     5474 |
26.38/26.41	c |      2834 |       0    8178    16258     1829     2417    24.2 |     5474 |
26.38/26.41	c |      3876 |       0    8178    16258     2871     2938    25.1 |     5474 |
26.38/26.41	c |      5132 |       0    8178    16258     2624     3566    22.7 |     5474 |
26.38/26.41	c |      6623 |       0    8179    16258     4114     4311    22.4 |     5474 |
26.38/26.41	c |      8373 |       0    8179    16258     3611     5186    21.2 |     5474 |
26.38/26.41	c |     10408 |       0    8179    16258     5646     6204    23.2 |     5474 |
26.38/26.41	c |     12756 |       0    8181    16258     4612     7378    22.5 |     5474 |
26.38/26.41	c |     15449 |       0    8182    16258     7304     8724    23.6 |     5474 |
26.38/26.41	c |     18521 |       0    8184    16258     5301    10260    20.6 |     5474 |
26.38/26.41	c |     22010 |       0    8186    16258     8788    12005    22.8 |     5474 |
26.38/26.41	c |     25958 |       0    8186    16258    12736    13979    22.9 |     5474 |
26.38/26.41	c |     30411 |       0    8189    16258     9574    16205    20.4 |     5474 |
26.38/26.41	c |     35419 |       0    8190    16258    14581    18709    21.4 |     5474 |
26.38/26.41	c |     41038 |       0    8192    16258    20198    21519    22.4 |     5474 |
26.38/26.41	c |     47329 |       0    8203    16258    15062    24664    22.1 |     4604 |
26.38/26.41	c |     48042 |       0    8230    16258    15733    25021    22.0 |       58 |
26.38/26.41	c ----- stats for thread 0 -----
26.38/26.41	c restarts: 90
26.38/26.41	c decisions: 70964
26.38/26.41	c propagations: 39482852
26.38/26.41	c conflicts: 48042
26.38/26.41	c 26.417s elapsed
26.38/26.41	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-1555023-1238736399/watcher-1555023-1238736399 -o /tmp/evaluation-result-1555023-1238736399/solver-1555023-1238736399 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1555023-1238736399.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: 0.92 0.98 0.99 3/64 4853
/proc/meminfo: memFree=1728760/2055920 swapFree=4176924/4192956
[pid=4853] ppid=4851 vsize=3508 CPUtime=0
/proc/4853/stat : 4853 (mxc-sat09) R 4851 4853 4454 0 -1 4194304 613 0 0 0 0 0 0 0 18 0 1 0 1146304814 3592192 599 1992294400 134512640 135192793 4294956208 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/4853/statm: 877 604 54 166 0 708 0

[startup+0.0121629 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 4853
/proc/meminfo: memFree=1728760/2055920 swapFree=4176924/4192956
[pid=4853] ppid=4851 vsize=4424 CPUtime=0
/proc/4853/stat : 4853 (mxc-sat09) R 4851 4853 4454 0 -1 4194304 816 0 0 0 0 0 0 0 18 0 1 0 1146304814 4530176 800 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/4853/statm: 1106 800 54 166 0 937 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4424

[startup+0.101163 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 4853
/proc/meminfo: memFree=1728760/2055920 swapFree=4176924/4192956
[pid=4853] ppid=4851 vsize=7532 CPUtime=0.09
/proc/4853/stat : 4853 (mxc-sat09) R 4851 4853 4454 0 -1 4194304 1736 0 0 0 9 0 0 0 18 0 1 0 1146304814 7712768 1596 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/4853/statm: 1883 1597 56 166 0 1714 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7532

[startup+0.301185 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 4853
/proc/meminfo: memFree=1728760/2055920 swapFree=4176924/4192956
[pid=4853] ppid=4851 vsize=9452 CPUtime=0.29
/proc/4853/stat : 4853 (mxc-sat09) R 4851 4853 4454 0 -1 4194304 2350 0 0 0 28 1 0 0 19 0 1 0 1146304814 9678848 2092 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/4853/statm: 2363 2092 72 166 0 2194 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9452

[startup+0.701229 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 4853
/proc/meminfo: memFree=1728760/2055920 swapFree=4176924/4192956
[pid=4853] ppid=4851 vsize=9716 CPUtime=0.69
/proc/4853/stat : 4853 (mxc-sat09) R 4851 4853 4454 0 -1 4194304 2419 0 0 0 68 1 0 0 22 0 1 0 1146304814 9949184 2161 1992294400 134512640 135192793 4294956208 18446744073709551615 134533937 0 0 4096 0 0 0 0 17 1 0 0
/proc/4853/statm: 2429 2161 72 166 0 2260 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9716

[startup+1.50132 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 4854
/proc/meminfo: memFree=1720240/2055920 swapFree=4176924/4192956
[pid=4853] ppid=4851 vsize=9848 CPUtime=1.49
/proc/4853/stat : 4853 (mxc-sat09) R 4851 4853 4454 0 -1 4194304 2477 0 0 0 148 1 0 0 25 0 1 0 1146304814 10084352 2219 1992294400 134512640 135192793 4294956208 18446744073709551615 134533808 0 0 4096 0 0 0 0 17 1 0 0
/proc/4853/statm: 2462 2219 73 166 0 2293 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 9848

[startup+3.1015 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 4854
/proc/meminfo: memFree=1719856/2055920 swapFree=4176924/4192956
[pid=4853] ppid=4851 vsize=10380 CPUtime=3.09
/proc/4853/stat : 4853 (mxc-sat09) R 4851 4853 4454 0 -1 4194304 2605 0 0 0 308 1 0 0 25 0 1 0 1146304814 10629120 2347 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/4853/statm: 2595 2347 73 166 0 2426 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10380

[startup+6.30185 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 4854
/proc/meminfo: memFree=1719088/2055920 swapFree=4176924/4192956
[pid=4853] ppid=4851 vsize=11040 CPUtime=6.29
/proc/4853/stat : 4853 (mxc-sat09) R 4851 4853 4454 0 -1 4194304 2746 0 0 0 628 1 0 0 25 0 1 0 1146304814 11304960 2488 1992294400 134512640 135192793 4294956208 18446744073709551615 134548124 0 0 4096 0 0 0 0 17 1 0 0
/proc/4853/statm: 2760 2488 73 166 0 2591 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11040

[startup+12.7016 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 4854
/proc/meminfo: memFree=1717872/2055920 swapFree=4176924/4192956
[pid=4853] ppid=4851 vsize=12260 CPUtime=12.68
/proc/4853/stat : 4853 (mxc-sat09) R 4851 4853 4454 0 -1 4194304 3045 0 0 0 1267 1 0 0 25 0 1 0 1146304814 12554240 2787 1992294400 134512640 135192793 4294956208 18446744073709551615 134533866 0 0 4096 0 0 0 0 17 1 0 0
/proc/4853/statm: 3065 2787 73 166 0 2896 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 12260

[startup+25.503 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 4854
/proc/meminfo: memFree=1715312/2055920 swapFree=4176924/4192956
[pid=4853] ppid=4851 vsize=14744 CPUtime=25.48
/proc/4853/stat : 4853 (mxc-sat09) R 4851 4853 4454 0 -1 4194304 3631 0 0 0 2546 2 0 0 25 0 1 0 1146304814 15097856 3373 1992294400 134512640 135192793 4294956208 18446744073709551615 134533381 0 0 4096 0 0 0 0 17 1 0 0
/proc/4853/statm: 3686 3373 73 166 0 3517 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 14744

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

[startup+25.902 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 4854
/proc/meminfo: memFree=1715312/2055920 swapFree=4176924/4192956
[pid=4853] ppid=4851 vsize=14744 CPUtime=25.88
/proc/4853/stat : 4853 (mxc-sat09) R 4851 4853 4454 0 -1 4194304 3631 0 0 0 2586 2 0 0 25 0 1 0 1146304814 15097856 3373 1992294400 134512640 135192793 4294956208 18446744073709551615 134551038 0 0 4096 0 0 0 0 17 1 0 0
/proc/4853/statm: 3686 3373 73 166 0 3517 0
Current children cumulated CPU time (s) 25.88
Current children cumulated vsize (KiB) 14744

[startup+26.3011 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 4854
/proc/meminfo: memFree=1715312/2055920 swapFree=4176924/4192956
[pid=4853] ppid=4851 vsize=14744 CPUtime=26.28
/proc/4853/stat : 4853 (mxc-sat09) R 4851 4853 4454 0 -1 4194304 3631 0 0 0 2626 2 0 0 25 0 1 0 1146304814 15097856 3373 1992294400 134512640 135192793 4294956208 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/4853/statm: 3686 3373 73 166 0 3517 0
Current children cumulated CPU time (s) 26.28
Current children cumulated vsize (KiB) 14744

[startup+26.4051 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 4854
/proc/meminfo: memFree=1715312/2055920 swapFree=4176924/4192956
[pid=4853] ppid=4851 vsize=14744 CPUtime=26.38
/proc/4853/stat : 4853 (mxc-sat09) R 4851 4853 4454 0 -1 4194304 3631 0 0 0 2636 2 0 0 25 0 1 0 1146304814 15097856 3373 1992294400 134512640 135192793 4294956208 18446744073709551615 134532620 0 0 4096 0 0 0 0 17 1 0 0
/proc/4853/statm: 3686 3373 73 166 0 3517 0
Current children cumulated CPU time (s) 26.38
Current children cumulated vsize (KiB) 14744

Child status: 20
Real time (s): 26.4206
CPU time (s): 26.414
CPU user time (s): 26.382
CPU system time (s): 0.031995
CPU usage (%): 99.9748
Max. virtual memory (cumulated for all children) (KiB): 14744

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.382
system time used= 0.031995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3634
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= 47

runsolver used 0.023996 second user time and 0.06499 second system time

The end

Launcher Data 

Begin job on node35 at 2009-04-03 07:26:39
IDJOB=1555023
IDBENCH=70792
IDSOLVER=504
FILE ID=node35/1555023-1238736399
PBS_JOBID= 9085374
Free space on /tmp= 66480 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/APPLICATIONS/bitverif/icbrt/icbrt1_32.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1555023-1238736399/watcher-1555023-1238736399 -o /tmp/evaluation-result-1555023-1238736399/solver-1555023-1238736399 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1555023-1238736399.cnf

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

MD5SUM BENCH= 157e258753171ede0eac48b41cfa7b1d
RANDOM SEED=551809733

node35.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		: 3000.229
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		: 3000.229
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:       1729176 kB
Buffers:         41212 kB
Cached:         193244 kB
SwapCached:      10140 kB
Active:          52712 kB
Inactive:       193496 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1729176 kB
SwapTotal:     4192956 kB
SwapFree:      4176924 kB
Dirty:            1180 kB
Writeback:           0 kB
Mapped:          17524 kB
Slab:            66472 kB
Committed_AS:  2992468 kB
PageTables:       1404 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= 66480 MiB
End job on node35 at 2009-04-03 07:27:06