Trace number 1773777

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 26.9649 26.9717

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 benchmark10.7464
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 

26.88/26.96	c starting MXC with:
26.88/26.96	c cnf_path = HOME/instance-1773777-1241303077.cnf
26.88/26.96	c restart_strategy = auto
26.88/26.96	c sign_strategy = cached
26.88/26.96	c use_preprocessing = -1
26.88/26.96	c output_implicant = 1
26.88/26.96	c timeout_seconds = 0
26.88/26.96	c running SatELite... done
26.88/26.96	c 5832 vars eliminated
26.88/26.96	c received 4 units and 24433 clauses from SatELite
26.88/26.96	c 5835 assignments made, starting to guess now
26.88/26.96	c ===================================[MXC]=====================================
26.88/26.96	c | Conflicts |                Clause Statistics                   |   Vars   |
26.88/26.96	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
26.88/26.96	c =============================================================================
26.88/26.96	c |         0 |       0    8175    16258        0        0     nan |    11309 |
26.88/26.96	c |       100 |       0    8175    16258      100     1050    31.5 |     5474 |
26.88/26.96	c |       210 |       0    8175    16258      210     1105    38.1 |     5474 |
26.88/26.96	c |       441 |       0    8175    16258      441     1220    31.6 |     5474 |
26.88/26.96	c |       805 |       0    8178    16258      802     1402    28.0 |     5474 |
26.88/26.96	c |      1315 |       0    8178    16258     1312     1657    27.9 |     5474 |
26.88/26.96	c |      1986 |       0    8178    16258     1983     1993    26.8 |     5474 |
26.88/26.96	c |      2834 |       0    8178    16258     1829     2417    24.2 |     5474 |
26.88/26.96	c |      3876 |       0    8178    16258     2871     2938    25.1 |     5474 |
26.88/26.96	c |      5132 |       0    8178    16258     2624     3566    22.7 |     5474 |
26.88/26.96	c |      6623 |       0    8179    16258     4114     4311    22.4 |     5474 |
26.88/26.96	c |      8373 |       0    8179    16258     3611     5186    21.2 |     5474 |
26.88/26.96	c |     10408 |       0    8179    16258     5646     6204    23.2 |     5474 |
26.88/26.96	c |     12756 |       0    8181    16258     4612     7378    22.5 |     5474 |
26.88/26.96	c |     15449 |       0    8182    16258     7304     8724    23.6 |     5474 |
26.88/26.96	c |     18521 |       0    8184    16258     5301    10260    20.6 |     5474 |
26.88/26.96	c |     22010 |       0    8186    16258     8788    12005    22.8 |     5474 |
26.88/26.96	c |     25958 |       0    8186    16258    12736    13979    22.9 |     5474 |
26.88/26.96	c |     30411 |       0    8189    16258     9574    16205    20.4 |     5474 |
26.88/26.96	c |     35419 |       0    8190    16258    14581    18709    21.4 |     5474 |
26.88/26.96	c |     41038 |       0    8192    16258    20198    21519    22.4 |     5474 |
26.88/26.96	c |     47329 |       0    8203    16258    15062    24664    22.1 |     4604 |
26.88/26.96	c |     48042 |       0    8230    16258    15733    25021    22.0 |       58 |
26.88/26.96	c ----- stats for thread 0 -----
26.88/26.96	c restarts: 90
26.88/26.96	c decisions: 70964
26.88/26.96	c propagations: 39482852
26.88/26.96	c conflicts: 48042
26.88/26.96	c 26.968s elapsed
26.88/26.96	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-1773777-1241303077/watcher-1773777-1241303077 -o /tmp/evaluation-result-1773777-1241303077/solver-1773777-1241303077 -C 10000 -W 12000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1773777-1241303077.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 1.09 1.03 3/64 21758
/proc/meminfo: memFree=943160/2055920 swapFree=3992584/4192956
[pid=21758] ppid=21756 vsize=3508 CPUtime=0
/proc/21758/stat : 21758 (mxc-sat09) R 21756 21758 21721 0 -1 4194304 608 0 0 0 0 0 0 0 18 0 1 0 158335267 3592192 594 1992294400 134512640 135192793 4294956224 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/21758/statm: 877 600 53 166 0 708 0

[startup+0.094332 s]
/proc/loadavg: 1.00 1.09 1.03 3/64 21758
/proc/meminfo: memFree=943160/2055920 swapFree=3992584/4192956
[pid=21758] ppid=21756 vsize=7400 CPUtime=0.09
/proc/21758/stat : 21758 (mxc-sat09) R 21756 21758 21721 0 -1 4194304 1677 0 0 0 8 1 0 0 18 0 1 0 158335267 7577600 1537 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/21758/statm: 1850 1537 56 166 0 1681 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7400

[startup+0.102339 s]
/proc/loadavg: 1.00 1.09 1.03 3/64 21758
/proc/meminfo: memFree=943160/2055920 swapFree=3992584/4192956
[pid=21758] ppid=21756 vsize=7532 CPUtime=0.1
/proc/21758/stat : 21758 (mxc-sat09) R 21756 21758 21721 0 -1 4194304 1735 0 0 0 9 1 0 0 18 0 1 0 158335267 7712768 1595 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/21758/statm: 1883 1596 56 166 0 1714 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 7532

[startup+0.301349 s]
/proc/loadavg: 1.00 1.09 1.03 3/64 21758
/proc/meminfo: memFree=943160/2055920 swapFree=3992584/4192956
[pid=21758] ppid=21756 vsize=9452 CPUtime=0.29
/proc/21758/stat : 21758 (mxc-sat09) R 21756 21758 21721 0 -1 4194304 2349 0 0 0 28 1 0 0 19 0 1 0 158335267 9678848 2091 1992294400 134512640 135192793 4294956224 18446744073709551615 134533336 0 0 4096 0 0 0 0 17 1 0 0
/proc/21758/statm: 2363 2091 72 166 0 2194 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9452

[startup+0.702394 s]
/proc/loadavg: 1.00 1.09 1.03 3/64 21758
/proc/meminfo: memFree=943160/2055920 swapFree=3992584/4192956
[pid=21758] ppid=21756 vsize=9716 CPUtime=0.69
/proc/21758/stat : 21758 (mxc-sat09) R 21756 21758 21721 0 -1 4194304 2416 0 0 0 68 1 0 0 23 0 1 0 158335267 9949184 2158 1992294400 134512640 135192793 4294956224 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/21758/statm: 2429 2158 72 166 0 2260 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9716

[startup+1.50147 s]
/proc/loadavg: 1.00 1.09 1.03 2/65 21759
/proc/meminfo: memFree=934648/2055920 swapFree=3992584/4192956
[pid=21758] ppid=21756 vsize=9848 CPUtime=1.49
/proc/21758/stat : 21758 (mxc-sat09) R 21756 21758 21721 0 -1 4194304 2468 0 0 0 148 1 0 0 25 0 1 0 158335267 10084352 2210 1992294400 134512640 135192793 4294956224 18446744073709551615 134548439 0 0 4096 0 0 0 0 17 1 0 0
/proc/21758/statm: 2462 2210 73 166 0 2293 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 9848

[startup+3.10161 s]
/proc/loadavg: 1.00 1.09 1.03 2/65 21759
/proc/meminfo: memFree=934264/2055920 swapFree=3992584/4192956
[pid=21758] ppid=21756 vsize=10380 CPUtime=3.09
/proc/21758/stat : 21758 (mxc-sat09) R 21756 21758 21721 0 -1 4194304 2592 0 0 0 307 2 0 0 25 0 1 0 158335267 10629120 2334 1992294400 134512640 135192793 4294956224 18446744073709551615 134532632 0 0 4096 0 0 0 0 17 1 0 0
/proc/21758/statm: 2595 2334 73 166 0 2426 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10380

[startup+6.3019 s]
/proc/loadavg: 1.00 1.09 1.03 2/65 21759
/proc/meminfo: memFree=933512/2055920 swapFree=3992584/4192956
[pid=21758] ppid=21756 vsize=11040 CPUtime=6.29
/proc/21758/stat : 21758 (mxc-sat09) R 21756 21758 21721 0 -1 4194304 2746 0 0 0 627 2 0 0 25 0 1 0 158335267 11304960 2488 1992294400 134512640 135192793 4294956224 18446744073709551615 134550821 0 0 4096 0 0 0 0 17 1 0 0
/proc/21758/statm: 2760 2488 73 166 0 2591 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11040

[startup+12.7015 s]
/proc/loadavg: 1.00 1.09 1.03 2/65 21759
/proc/meminfo: memFree=932440/2055920 swapFree=3992584/4192956
[pid=21758] ppid=21756 vsize=12128 CPUtime=12.69
/proc/21758/stat : 21758 (mxc-sat09) R 21756 21758 21721 0 -1 4194304 3031 0 0 0 1267 2 0 0 25 0 1 0 158335267 12419072 2773 1992294400 134512640 135192793 4294956224 18446744073709551615 134551561 0 0 4096 0 0 0 0 17 1 0 0
/proc/21758/statm: 3032 2773 73 166 0 2863 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 12128

[startup+25.5016 s]
/proc/loadavg: 1.00 1.08 1.03 2/65 21759
/proc/meminfo: memFree=930024/2055920 swapFree=3992584/4192956
[pid=21758] ppid=21756 vsize=14744 CPUtime=25.48
/proc/21758/stat : 21758 (mxc-sat09) R 21756 21758 21721 0 -1 4194304 3631 0 0 0 2545 3 0 0 25 0 1 0 158335267 15097856 3373 1992294400 134512640 135192793 4294956224 18446744073709551615 134533831 0 0 4096 0 0 0 0 17 1 0 0
/proc/21758/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+26.3027 s]
/proc/loadavg: 1.00 1.08 1.03 2/65 21759
/proc/meminfo: memFree=930024/2055920 swapFree=3992584/4192956
[pid=21758] ppid=21756 vsize=14744 CPUtime=26.29
/proc/21758/stat : 21758 (mxc-sat09) R 21756 21758 21721 0 -1 4194304 3631 0 0 0 2626 3 0 0 25 0 1 0 158335267 15097856 3373 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/21758/statm: 3686 3373 73 166 0 3517 0
Current children cumulated CPU time (s) 26.29
Current children cumulated vsize (KiB) 14744

[startup+26.7027 s]
/proc/loadavg: 1.00 1.08 1.03 2/65 21759
/proc/meminfo: memFree=930024/2055920 swapFree=3992584/4192956
[pid=21758] ppid=21756 vsize=14744 CPUtime=26.68
/proc/21758/stat : 21758 (mxc-sat09) R 21756 21758 21721 0 -1 4194304 3631 0 0 0 2665 3 0 0 25 0 1 0 158335267 15097856 3373 1992294400 134512640 135192793 4294956224 18446744073709551615 134534180 0 0 4096 0 0 0 0 17 1 0 0
/proc/21758/statm: 3686 3373 73 166 0 3517 0
Current children cumulated CPU time (s) 26.68
Current children cumulated vsize (KiB) 14744

[startup+26.9017 s]
/proc/loadavg: 1.00 1.08 1.03 2/65 21759
/proc/meminfo: memFree=930024/2055920 swapFree=3992584/4192956
[pid=21758] ppid=21756 vsize=14744 CPUtime=26.88
/proc/21758/stat : 21758 (mxc-sat09) R 21756 21758 21721 0 -1 4194304 3631 0 0 0 2685 3 0 0 25 0 1 0 158335267 15097856 3373 1992294400 134512640 135192793 4294956224 18446744073709551615 134551016 0 0 4096 0 0 0 0 17 1 0 0
/proc/21758/statm: 3686 3373 73 166 0 3517 0
Current children cumulated CPU time (s) 26.88
Current children cumulated vsize (KiB) 14744

Child status: 20
Real time (s): 26.9717
CPU time (s): 26.9649
CPU user time (s): 26.9249
CPU system time (s): 0.039993
CPU usage (%): 99.9747
Max. virtual memory (cumulated for all children) (KiB): 14744

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.9249
system time used= 0.039993
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= 71

runsolver used 0.023996 second user time and 0.067989 second system time

The end

Launcher Data 

Begin job on node51 at 2009-05-03 00:24:37
IDJOB=1773777
IDBENCH=70792
IDSOLVER=613
FILE ID=node51/1773777-1241303077
PBS_JOBID= 9225207
Free space on /tmp= 66524 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-1773777-1241303077/watcher-1773777-1241303077 -o /tmp/evaluation-result-1773777-1241303077/solver-1773777-1241303077 -C 10000 -W 12000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1773777-1241303077.cnf

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

MD5SUM BENCH= 157e258753171ede0eac48b41cfa7b1d
RANDOM SEED=682696188

node51.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		: 3000.214
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		: 3000.214
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:        943640 kB
Buffers:         79884 kB
Cached:         743588 kB
SwapCached:     194964 kB
Active:          59676 kB
Inactive:       961188 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        943640 kB
SwapTotal:     4192956 kB
SwapFree:      3992584 kB
Dirty:            1212 kB
Writeback:           0 kB
Mapped:          13552 kB
Slab:            77404 kB
Committed_AS:   549268 kB
PageTables:       1392 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= 66524 MiB
End job on node51 at 2009-05-03 00:25:04