Trace number 1732095

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 18.4562 18.462

General information on the benchmark

NameCRAFTED/sgen/unsat/
sgen1-unsat-73-100.cnf
MD5SUM21a63ce6f14424dbad7bd9e8fb6cd037
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.9497
Satisfiable
(Un)Satisfiability was proved
Number of variables73
Number of clauses156
Sum of the clauses size468
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3156
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

14.29/14.32	c starting MXC with:
14.29/14.32	c cnf_path = HOME/instance-1732095-1240777779.cnf
14.29/14.32	c restart_strategy = auto
14.29/14.32	c sign_strategy = cached
14.29/14.32	c use_preprocessing = -1
14.29/14.32	c output_implicant = 1
14.29/14.32	c timeout_seconds = 0
14.29/14.32	c running SatELite... done
14.29/14.32	c 1 vars eliminated
14.29/14.32	c received 0 units and 156 clauses from SatELite
14.29/14.32	c 0 assignments made, starting to guess now
14.29/14.32	c ===================================[MXC]=====================================
14.29/14.32	c | Conflicts |                Clause Statistics                   |   Vars   |
14.29/14.32	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
14.29/14.32	c =============================================================================
14.29/14.32	c |         0 |       0       0      156        0        0     nan |       73 |
14.29/14.32	c |       100 |       0       0      156      100     1050    12.8 |       73 |
14.29/14.32	c |       210 |       0       0      156      210     1105    12.0 |       73 |
14.29/14.32	c |       441 |       0       0      156      441     1220    12.4 |       73 |
14.29/14.32	c |       805 |       0       0      156      805     1402    12.9 |       73 |
14.29/14.32	c |      1315 |       0       0      156     1315     1609    13.8 |       73 |
14.29/14.32	c |      1986 |       0       0      156     1138     1754    14.8 |       73 |
14.29/14.32	c |      2834 |       0       0      156     1046     1894    14.9 |       73 |
14.29/14.32	c |      3876 |       0       0      156     1076     2031    14.1 |       73 |
14.29/14.32	c |      5132 |       0       0      156     1259     2163    13.1 |       73 |
14.29/14.32	c |      6623 |       0       0      156     1624     2292    13.3 |       73 |
14.29/14.32	c |      8373 |       0       0      156     2200     2419    13.0 |       73 |
14.29/14.32	c |     10408 |       0       0      156     1761     2543    12.1 |       73 |
14.29/14.32	c |     12756 |       0       0      156     1488     2665    12.4 |       73 |
14.29/14.32	c |     15449 |       0       0      156     1427     2786    11.3 |       73 |
14.29/14.32	c |     18521 |       0       0      156     1627     2906    12.2 |       73 |
14.29/14.32	c |     22010 |       0       0      156     2137     3025    11.6 |       73 |
14.29/14.32	c |     25958 |       0       0      156     3009     3144    10.8 |       73 |
14.29/14.32	c |     30411 |       0       0      156     2677     3262    10.8 |       73 |
14.29/14.32	c |     35419 |       0       0      156     2708     3381    12.8 |       73 |
14.29/14.32	c |     41038 |       0       0      156     3177     3499    11.6 |       73 |
14.29/14.32	c |     47329 |       0       0      156     2355     3618    11.0 |       73 |
14.29/14.32	c |     54360 |       0       0      156     2013     3737    10.9 |       73 |
14.29/14.32	c |     62205 |       0       0      156     2245     3857    11.0 |       73 |
14.29/14.32	c |     70945 |       0       0      156     3149     3978    10.4 |       73 |
14.29/14.32	c |     80669 |       0       0      156     2784     4099    10.6 |       73 |
14.29/14.32	c |     91476 |       0       0      156     3184     4222    11.6 |       73 |
14.29/14.32	c |    103474 |       0       0      156     2317     4346    11.1 |       73 |
14.29/14.32	c |    116782 |       0       0      156     2378     4471    11.0 |       73 |
14.29/14.32	c |    131532 |       0       0      156     3518     4597    10.5 |       73 |
14.29/14.32	c |    147868 |       0       0      156     3543     4726    10.3 |       73 |
14.29/14.32	c |    165948 |       0       0      156     2448     4855    11.1 |       73 |
14.29/14.32	c |    185947 |       0       0      156     2743     4987    10.6 |       73 |
14.29/14.32	c |    208057 |       0       0      156     4641     5120    12.1 |       73 |
14.29/14.32	c |    232489 |       0       0      156     3148     5255    10.1 |       73 |
14.29/14.32	c |    259475 |       0       0      156     3508     5393    10.1 |       73 |
14.29/14.32	c |    289271 |       0       0      156     3267     5532    10.3 |       73 |
14.29/14.32	c |    322158 |       0       0      156     5344     5674    11.3 |       73 |
14.29/14.32	c |    358445 |       0       0      156     4301     5818    11.7 |       73 |
14.29/14.32	c |    398472 |       0       0      156     3081     5965    10.3 |       73 |
14.29/14.32	c |    442613 |       0       1      156     4959     6114    10.8 |       73 |
14.29/14.32	c |    491279 |       0       2      156     4108     6265    11.2 |       73 |
14.29/14.32	c |    544923 |       0      17      156     3807     6420     9.8 |       72 |
18.39/18.46	c |    604043 |       0      19      156     4436     6577     9.8 |       72 |
18.39/18.46	c |    669187 |       0      57      156     6296     6737     8.9 |       69 |
18.39/18.46	c |    686043 |       0     106      156     6208     6777     7.8 |       44 |
18.39/18.46	c ----- stats for thread 0 -----
18.39/18.46	c restarts: 31
18.39/18.46	c decisions: 886873
18.39/18.46	c propagations: 12942920
18.39/18.46	c conflicts: 686043
18.39/18.46	c 18.460s elapsed
18.39/18.46	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-1732095-1240777779/watcher-1732095-1240777779 -o /tmp/evaluation-result-1732095-1240777779/solver-1732095-1240777779 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1732095-1240777779.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: 1.10 1.04 1.05 3/64 9186
/proc/meminfo: memFree=1716792/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=844 CPUtime=0
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 120 0 0 0 0 0 0 0 18 0 1 0 105803930 864256 106 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 211 107 71 166 0 42 0

[startup+0.0366019 s]
/proc/loadavg: 1.10 1.04 1.05 3/64 9186
/proc/meminfo: memFree=1716792/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=1108 CPUtime=0.03
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 187 0 0 0 3 0 0 0 18 0 1 0 105803930 1134592 173 1992294400 134512640 135192793 4294956224 18446744073709551615 134533831 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 277 173 72 166 0 108 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1108

[startup+0.101607 s]
/proc/loadavg: 1.10 1.04 1.05 3/64 9186
/proc/meminfo: memFree=1716792/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=1368 CPUtime=0.09
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 225 0 0 0 9 0 0 0 18 0 1 0 105803930 1400832 211 1992294400 134512640 135192793 4294956224 18446744073709551615 134534215 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 342 211 72 166 0 173 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1368

[startup+0.301627 s]
/proc/loadavg: 1.10 1.04 1.05 3/64 9186
/proc/meminfo: memFree=1716792/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=1504 CPUtime=0.29
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 282 0 0 0 29 0 0 0 19 0 1 0 105803930 1540096 268 1992294400 134512640 135192793 4294956224 18446744073709551615 134533831 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 376 268 72 166 0 207 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1504

[startup+0.701666 s]
/proc/loadavg: 1.10 1.04 1.05 3/64 9186
/proc/meminfo: memFree=1716792/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=1772 CPUtime=0.69
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 354 0 0 0 69 0 0 0 22 0 1 0 105803930 1814528 340 1992294400 134512640 135192793 4294956224 18446744073709551615 134551064 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 443 340 72 166 0 274 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1772

[startup+1.50175 s]
/proc/loadavg: 1.10 1.04 1.05 2/65 9187
/proc/meminfo: memFree=1715504/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=2312 CPUtime=1.49
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 455 0 0 0 149 0 0 0 25 0 1 0 105803930 2367488 441 1992294400 134512640 135192793 4294956224 18446744073709551615 134532563 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 578 441 72 166 0 409 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2312

[startup+3.10191 s]
/proc/loadavg: 1.09 1.04 1.05 2/65 9187
/proc/meminfo: memFree=1714928/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=2716 CPUtime=3.09
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 555 0 0 0 309 0 0 0 25 0 1 0 105803930 2781184 541 1992294400 134512640 135192793 4294956224 18446744073709551615 134534199 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 679 541 72 166 0 510 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2716

[startup+6.30122 s]
/proc/loadavg: 1.09 1.04 1.05 2/65 9187
/proc/meminfo: memFree=1714160/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=3276 CPUtime=6.29
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 708 0 0 0 629 0 0 0 25 0 1 0 105803930 3354624 694 1992294400 134512640 135192793 4294956224 18446744073709551615 134533813 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 819 694 72 166 0 650 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3276

[startup+12.7019 s]
/proc/loadavg: 1.08 1.03 1.05 2/65 9187
/proc/meminfo: memFree=1713200/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=4312 CPUtime=12.69
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 915 0 0 0 1268 1 0 0 25 0 1 0 105803930 4415488 901 1992294400 134512640 135192793 4294956224 18446744073709551615 134534128 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 1078 901 72 166 0 909 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4312

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

[startup+15.9012 s]
/proc/loadavg: 1.08 1.03 1.05 2/65 9187
/proc/meminfo: memFree=1712880/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=4632 CPUtime=15.89
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 993 0 0 0 1588 1 0 0 25 0 1 0 105803930 4743168 979 1992294400 134512640 135192793 4294956224 18446744073709551615 134533336 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 1158 979 73 166 0 989 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 4632

[startup+17.5013 s]
/proc/loadavg: 1.07 1.03 1.05 3/65 9187
/proc/meminfo: memFree=1712752/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=4792 CPUtime=17.49
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 1021 0 0 0 1748 1 0 0 25 0 1 0 105803930 4907008 1007 1992294400 134512640 135192793 4294956224 18446744073709551615 134752330 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 1198 1007 73 166 0 1029 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 4792

[startup+17.9014 s]
/proc/loadavg: 1.07 1.03 1.05 3/65 9187
/proc/meminfo: memFree=1712752/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=4792 CPUtime=17.89
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 1027 0 0 0 1788 1 0 0 25 0 1 0 105803930 4907008 1013 1992294400 134512640 135192793 4294956224 18446744073709551615 134548130 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 1198 1013 73 166 0 1029 0
Current children cumulated CPU time (s) 17.89
Current children cumulated vsize (KiB) 4792

[startup+18.3014 s]
/proc/loadavg: 1.07 1.03 1.05 3/65 9187
/proc/meminfo: memFree=1712752/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=4792 CPUtime=18.29
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 1027 0 0 0 1828 1 0 0 25 0 1 0 105803930 4907008 1013 1992294400 134512640 135192793 4294956224 18446744073709551615 134534128 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 1198 1013 73 166 0 1029 0
Current children cumulated CPU time (s) 18.29
Current children cumulated vsize (KiB) 4792

[startup+18.4014 s]
/proc/loadavg: 1.07 1.03 1.05 3/65 9187
/proc/meminfo: memFree=1712752/2055920 swapFree=4182076/4192956
[pid=9186] ppid=9184 vsize=4792 CPUtime=18.39
/proc/9186/stat : 9186 (mxc-sat09) R 9184 9186 9119 0 -1 4194304 1033 0 0 0 1838 1 0 0 25 0 1 0 105803930 4907008 1019 1992294400 134512640 135192793 4294956224 18446744073709551615 134533831 0 0 4096 0 0 0 0 17 1 0 0
/proc/9186/statm: 1198 1019 73 166 0 1029 0
Current children cumulated CPU time (s) 18.39
Current children cumulated vsize (KiB) 4792

Child status: 20
Real time (s): 18.462
CPU time (s): 18.4562
CPU user time (s): 18.4442
CPU system time (s): 0.011998
CPU usage (%): 99.9684
Max. virtual memory (cumulated for all children) (KiB): 4792

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.4442
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1036
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= 50

runsolver used 0.015997 second user time and 0.048992 second system time

The end

Launcher Data 

Begin job on node70 at 2009-04-26 22:29:39
IDJOB=1732095
IDBENCH=71110
IDSOLVER=504
FILE ID=node70/1732095-1240777779
PBS_JOBID= 9187240
Free space on /tmp= 66304 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/CRAFTED/sgen/unsat/sgen1-unsat-73-100.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1732095-1240777779/watcher-1732095-1240777779 -o /tmp/evaluation-result-1732095-1240777779/solver-1732095-1240777779 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1732095-1240777779.cnf

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

MD5SUM BENCH= 21a63ce6f14424dbad7bd9e8fb6cd037
RANDOM SEED=451935634

node70.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		: 3000.213
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		: 3000.213
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:       1717208 kB
Buffers:         38152 kB
Cached:         234088 kB
SwapCached:       4996 kB
Active:         123656 kB
Inactive:       157232 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1717208 kB
SwapTotal:     4192956 kB
SwapFree:      4182076 kB
Dirty:             704 kB
Writeback:           0 kB
Mapped:          14916 kB
Slab:            43896 kB
Committed_AS:   369688 kB
PageTables:       1372 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= 66304 MiB
End job on node70 at 2009-04-26 22:29:58