Trace number 1553307

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 17.1114 17.1165

General information on the benchmark

NameAPPLICATIONS/bitverif/
minxorminand/minxorminand032.cnf
MD5SUM49dda3faa6676166ee2ccb89f6cd8ca0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.59684
Satisfiable
(Un)Satisfiability was proved
Number of variables10794
Number of clauses31997
Sum of the clauses size74657
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 221330
Number of clauses of size 310665
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

17.08/17.11	c starting MXC with:
17.08/17.11	c cnf_path = HOME/instance-1553307-1238713465.cnf
17.08/17.11	c restart_strategy = auto
17.08/17.11	c sign_strategy = cached
17.08/17.11	c use_preprocessing = -1
17.08/17.11	c output_implicant = 1
17.08/17.11	c timeout_seconds = 0
17.08/17.11	c running SatELite... done
17.08/17.11	c 9222 vars eliminated
17.08/17.11	c received 10 units and 13215 clauses from SatELite
17.08/17.11	c 9231 assignments made, starting to guess now
17.08/17.11	c ===================================[MXC]=====================================
17.08/17.11	c | Conflicts |                Clause Statistics                   |   Vars   |
17.08/17.11	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
17.08/17.11	c =============================================================================
17.08/17.11	c |         0 |       0    5631     7584        0        0     nan |    10794 |
17.08/17.11	c |       100 |       0    5631     7584      100     1050    33.6 |     1563 |
17.08/17.11	c |       210 |       0    5601     7583      208     1105    37.3 |     1562 |
17.08/17.11	c |       441 |       0    5606     7583      434     1220    32.2 |     1562 |
17.08/17.11	c |       805 |       0    5608     7583      796     1402    30.2 |     1562 |
17.08/17.11	c |      1315 |       0    5612     7583     1302     1657    36.2 |     1562 |
17.08/17.11	c |      1986 |       0    5622     7583     1963     1993    47.3 |     1562 |
17.08/17.11	c |      2834 |       0    5602     7582     1804     2417    49.5 |     1561 |
17.08/17.11	c |      3876 |       0    5584     7580     2831     2938    41.2 |     1560 |
17.08/17.11	c |      5132 |       0    5588     7580     2611     3566    37.8 |     1560 |
17.08/17.11	c |      6623 |       0    5606     7580     4084     4311    50.9 |     1560 |
17.08/17.11	c |      8373 |       0    5574     7579     3633     5186    70.9 |     1559 |
17.08/17.11	c |     10408 |       0    5577     7579     5665     6204    89.7 |     1559 |
17.08/17.11	c |     12756 |       0    5585     7579     4637     7378    61.6 |     1559 |
17.08/17.11	c |     15449 |       0    5595     7579     7320     8724    65.8 |     1559 |
17.08/17.11	c |     18521 |       0    5602     7579     5346    10260    70.4 |     1559 |
17.08/17.11	c |     22010 |       0    5615     7579     8822    12005    77.9 |     1559 |
17.08/17.11	c |     25958 |       0    5579     7444    11520    13763    75.5 |     1553 |
17.08/17.11	c |     30411 |       0    5587     7444     9056    14075    71.4 |     1553 |
17.08/17.11	c |     35419 |       0    5593     7444    14058    14593    73.2 |     1553 |
17.08/17.11	c |     41038 |       0    5598     7444    12363    15111    90.1 |     1553 |
17.08/17.11	c |     47329 |       0    5608     7444    11007    15637    85.1 |     1553 |
17.08/17.11	c |     54360 |       0    5683     7296     6825    16197    46.9 |     1550 |
17.08/17.11	c |     62205 |       0    5692     7296    14661    16614    75.1 |     1550 |
17.08/17.11	c |     70945 |       0    5671     7294    15018    17147    79.0 |     1549 |
17.08/17.11	c |     80669 |       0    5681     7294    16133    17639    70.5 |     1549 |
17.08/17.11	c |     91476 |       0    5656     7292    18070    18173    72.3 |     1548 |
17.08/17.11	c |    103474 |       0    5635     7290    11732    18670    45.2 |     1547 |
17.08/17.11	c |    104194 |       0    5642     7290    12443    18663    44.8 |     1547 |
17.08/17.11	c ----- stats for thread 0 -----
17.08/17.11	c restarts: 357
17.08/17.11	c decisions: 469521
17.08/17.11	c propagations: 12178010
17.08/17.11	c conflicts: 104194
17.08/17.11	c 17.112s elapsed
17.08/17.11	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-1553307-1238713465/watcher-1553307-1238713465 -o /tmp/evaluation-result-1553307-1238713465/solver-1553307-1238713465 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1553307-1238713465.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: 0.99 1.00 1.02 3/70 18789
/proc/meminfo: memFree=1248304/2055920 swapFree=4174016/4192956
[pid=18789] ppid=18787 vsize=3616 CPUtime=0
/proc/18789/stat : 18789 (mxc-sat09) R 18787 18789 18635 0 -1 4194304 639 0 0 0 0 0 0 0 18 0 1 0 1144011569 3702784 625 1992294400 134512640 135192793 4294956224 18446744073709551615 134568427 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 904 626 53 166 0 735 0

[startup+0.018043 s]
/proc/loadavg: 0.99 1.00 1.02 3/70 18789
/proc/meminfo: memFree=1248304/2055920 swapFree=4174016/4192956
[pid=18789] ppid=18787 vsize=4740 CPUtime=0.01
/proc/18789/stat : 18789 (mxc-sat09) R 18787 18789 18635 0 -1 4194304 897 0 0 0 1 0 0 0 18 0 1 0 1144011569 4853760 881 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 1185 881 54 166 0 1016 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4740

[startup+0.101053 s]
/proc/loadavg: 0.99 1.00 1.02 3/70 18789
/proc/meminfo: memFree=1248304/2055920 swapFree=4174016/4192956
[pid=18789] ppid=18787 vsize=7760 CPUtime=0.08
/proc/18789/stat : 18789 (mxc-sat09) R 18787 18789 18635 0 -1 4194304 1739 0 0 0 8 0 0 0 18 0 1 0 1144011569 7946240 1608 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 1940 1608 56 166 0 1771 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 7760

[startup+0.301075 s]
/proc/loadavg: 0.99 1.00 1.02 3/70 18789
/proc/meminfo: memFree=1248304/2055920 swapFree=4174016/4192956
[pid=18789] ppid=18787 vsize=10908 CPUtime=0.29
/proc/18789/stat : 18789 (mxc-sat09) R 18787 18789 18635 0 -1 4194304 2516 0 0 0 28 1 0 0 19 0 1 0 1144011569 11169792 2385 1992294400 134512640 135192793 4294956224 18446744073709551615 134573206 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 2727 2385 56 166 0 2558 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10908

[startup+0.701121 s]
/proc/loadavg: 0.99 1.00 1.02 3/70 18789
/proc/meminfo: memFree=1248304/2055920 swapFree=4174016/4192956
[pid=18789] ppid=18787 vsize=10796 CPUtime=0.69
/proc/18789/stat : 18789 (mxc-sat09) R 18787 18789 18635 0 -1 4194304 2649 0 0 0 68 1 0 0 22 0 1 0 1144011569 11055104 2401 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 2699 2401 73 166 0 2530 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10796

[startup+1.50221 s]
/proc/loadavg: 0.99 1.00 1.02 2/71 18790
/proc/meminfo: memFree=1238312/2055920 swapFree=4174016/4192956
[pid=18789] ppid=18787 vsize=12776 CPUtime=1.49
/proc/18789/stat : 18789 (mxc-sat09) R 18787 18789 18635 0 -1 4194304 3162 0 0 0 148 1 0 0 25 0 1 0 1144011569 13082624 2914 1992294400 134512640 135192793 4294956224 18446744073709551615 134548044 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 3194 2914 73 166 0 3025 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12776

[startup+3.1014 s]
/proc/loadavg: 0.99 1.00 1.02 2/71 18790
/proc/meminfo: memFree=1236264/2055920 swapFree=4174016/4192956
[pid=18789] ppid=18787 vsize=14532 CPUtime=3.08
/proc/18789/stat : 18789 (mxc-sat09) R 18787 18789 18635 0 -1 4194304 3594 0 0 0 307 1 0 0 25 0 1 0 1144011569 14880768 3346 1992294400 134512640 135192793 4294956224 18446744073709551615 134533917 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 3633 3346 73 166 0 3464 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 14532

[startup+6.30177 s]
/proc/loadavg: 0.99 1.00 1.02 2/71 18790
/proc/meminfo: memFree=1232808/2055920 swapFree=4174016/4192956
[pid=18789] ppid=18787 vsize=17832 CPUtime=6.29
/proc/18789/stat : 18789 (mxc-sat09) R 18787 18789 18635 0 -1 4194304 4394 0 0 0 627 2 0 0 25 0 1 0 1144011569 18259968 4146 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 4458 4146 73 166 0 4289 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 17832

[startup+12.7015 s]
/proc/loadavg: 0.99 1.00 1.02 2/71 18790
/proc/meminfo: memFree=1230184/2055920 swapFree=4174016/4192956
[pid=18789] ppid=18787 vsize=19504 CPUtime=12.68
/proc/18789/stat : 18789 (mxc-sat09) R 18787 18789 18635 0 -1 4194304 4780 0 0 0 1266 2 0 0 25 0 1 0 1144011569 19972096 4532 1992294400 134512640 135192793 4294956224 18446744073709551615 134533909 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 4876 4532 73 166 0 4707 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 19504

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

[startup+14.3057 s]
/proc/loadavg: 0.99 1.00 1.02 2/71 18790
/proc/meminfo: memFree=1230056/2055920 swapFree=4174016/4192956
[pid=18789] ppid=18787 vsize=19504 CPUtime=14.29
/proc/18789/stat : 18789 (mxc-sat09) R 18787 18789 18635 0 -1 4194304 4791 0 0 0 1427 2 0 0 25 0 1 0 1144011569 19972096 4543 1992294400 134512640 135192793 4294956224 18446744073709551615 134533933 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 4876 4543 73 166 0 4707 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 19504

[startup+15.9019 s]
/proc/loadavg: 0.99 1.00 1.02 2/71 18790
/proc/meminfo: memFree=1229864/2055920 swapFree=4174016/4192956
[pid=18789] ppid=18787 vsize=19792 CPUtime=15.88
/proc/18789/stat : 18789 (mxc-sat09) R 18787 18789 18635 0 -1 4194304 4865 0 0 0 1586 2 0 0 25 0 1 0 1144011569 20267008 4617 1992294400 134512640 135192793 4294956224 18446744073709551615 134552248 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 4948 4617 73 166 0 4779 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 19792

[startup+16.702 s]
/proc/loadavg: 0.99 1.00 1.02 2/71 18790
/proc/meminfo: memFree=1229672/2055920 swapFree=4174016/4192956
[pid=18789] ppid=18787 vsize=20096 CPUtime=16.68
/proc/18789/stat : 18789 (mxc-sat09) R 18787 18789 18635 0 -1 4194304 4922 0 0 0 1666 2 0 0 25 0 1 0 1144011569 20578304 4674 1992294400 134512640 135192793 4294956224 18446744073709551615 134551644 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 5024 4674 73 166 0 4855 0
Current children cumulated CPU time (s) 16.68
Current children cumulated vsize (KiB) 20096

[startup+17.102 s]
/proc/loadavg: 0.99 1.00 1.02 2/71 18790
/proc/meminfo: memFree=1229672/2055920 swapFree=4174016/4192956
[pid=18789] ppid=18787 vsize=20096 CPUtime=17.08
/proc/18789/stat : 18789 (mxc-sat09) R 18787 18789 18635 0 -1 4194304 4927 0 0 0 1706 2 0 0 25 0 1 0 1144011569 20578304 4679 1992294400 134512640 135192793 4294956224 18446744073709551615 134534267 0 0 4096 0 0 0 0 17 1 0 0
/proc/18789/statm: 5024 4679 73 166 0 4855 0
Current children cumulated CPU time (s) 17.08
Current children cumulated vsize (KiB) 20096

Child status: 20
Real time (s): 17.1165
CPU time (s): 17.1114
CPU user time (s): 17.0784
CPU system time (s): 0.032994
CPU usage (%): 99.9704
Max. virtual memory (cumulated for all children) (KiB): 20096

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.0784
system time used= 0.032994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4930
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= 28

runsolver used 0.024996 second user time and 0.044993 second system time

The end

Launcher Data 

Begin job on node74 at 2009-04-03 01:04:25
IDJOB=1553307
IDBENCH=70759
IDSOLVER=504
FILE ID=node74/1553307-1238713465
PBS_JOBID= 9085295
Free space on /tmp= 101916 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/APPLICATIONS/bitverif/minxorminand/minxorminand032.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553307-1238713465/watcher-1553307-1238713465 -o /tmp/evaluation-result-1553307-1238713465/solver-1553307-1238713465 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1553307-1238713465.cnf

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

MD5SUM BENCH= 49dda3faa6676166ee2ccb89f6cd8ca0
RANDOM SEED=1574644726

node74.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		: 3000.236
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		: 3000.236
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:       1248720 kB
Buffers:         92264 kB
Cached:         623184 kB
SwapCached:       8140 kB
Active:         236292 kB
Inactive:       488808 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1248720 kB
SwapTotal:     4192956 kB
SwapFree:      4174016 kB
Dirty:            1252 kB
Writeback:           0 kB
Mapped:          15012 kB
Slab:            67304 kB
Committed_AS:  2552640 kB
PageTables:       1852 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 101916 MiB
End job on node74 at 2009-04-03 01:04:42