Trace number 1772597

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 63.0084 63.4132

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/total-5-13-u.cnf
MD5SUM127968d7d14f3ab7655995f561e62ed8
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark37.9452
Satisfiable
(Un)Satisfiability was proved
Number of variables178708
Number of clauses806681
Sum of the clauses size1842626
Maximum clause length10
Minimum clause length1
Number of clauses of size 115072
Number of clauses of size 2648853
Number of clauses of size 3108896
Number of clauses of size 43760
Number of clauses of size 515040
Number of clauses of size over 515060

Solver Data 

62.89/63.39	c starting MXC with:
62.89/63.39	c cnf_path = HOME/instance-1772597-1241174910.cnf
62.89/63.39	c restart_strategy = auto
62.89/63.39	c sign_strategy = cached
62.89/63.39	c use_preprocessing = -1
62.89/63.39	c output_implicant = 1
62.89/63.39	c timeout_seconds = 0
62.89/63.39	c running SatELite... done
62.89/63.39	c 50254 vars eliminated
62.89/63.39	c received 75186 units and 312646 clauses from SatELite
62.89/63.39	c 125439 assignments made, starting to guess now
62.89/63.39	c ===================================[MXC]=====================================
62.89/63.39	c | Conflicts |                Clause Statistics                   |   Vars   |
62.89/63.39	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
62.89/63.39	c =============================================================================
62.89/63.39	c |         0 |       0  189622   123024        0        0     nan |   178708 |
62.89/63.39	c |       100 |       0  175559   115287       75     1050    44.4 |    49849 |
62.89/63.39	c |       210 |       0  150538    94268      149     1105    47.3 |    43190 |
62.89/63.39	c |       441 |       0  144049    90182      363     1220    68.9 |    41709 |
62.89/63.39	c |       805 |       0  131188    84017      700     1402    79.9 |    38531 |
62.89/63.39	c |      1315 |       0  131092    83956     1206     1657    84.4 |    38510 |
62.89/63.39	c |      1986 |       0   95394    50894     1795     1993    71.0 |    28904 |
62.89/63.39	c |      2834 |       0   93987    50340     1531     2417    81.0 |    28546 |
62.89/63.39	c |      3876 |       0   92902    49766     2549     2938    82.2 |    28295 |
62.89/63.39	c |      5132 |       0   92862    49738     2141     3566    69.6 |    28286 |
62.89/63.39	c |      6623 |       0   92765    49680     3627     4311    60.5 |    28263 |
62.89/63.39	c |      8373 |       0   91751    49242     2850     5186    56.0 |    28036 |
62.89/63.39	c |     10408 |       0   73693    40299     4801     6204    56.0 |    23936 |
62.89/63.39	c |     12756 |       0   71785    39173     7138     7378    58.2 |    23436 |
62.89/63.39	c |     15449 |       0   71786    39173     6024     8724    53.9 |    23436 |
62.89/63.39	c |     18521 |       0   71451    38943     9018    10260    49.3 |    23353 |
62.89/63.39	c |     22010 |       0   71371    38884     6752    12005    36.8 |    23331 |
62.89/63.39	c |     25958 |       0   69038    37118    10632    13979    30.3 |    22634 |
62.89/63.39	c |     30411 |       0   67385    35601    15083    16205    29.8 |    21988 |
62.89/63.39	c |     35419 |       0   34865    16171     8904    18709    17.6 |    12619 |
62.89/63.39	c |     38768 |       0   34883    16171    12226    20384    16.4 |     7537 |
62.89/63.39	c ----- stats for thread 0 -----
62.89/63.39	c restarts: 186
62.89/63.39	c decisions: 75339
62.89/63.39	c propagations: 82186473
62.89/63.39	c conflicts: 38768
62.89/63.39	c 63.376s elapsed
62.89/63.39	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-1772597-1241174910/watcher-1772597-1241174910 -o /tmp/evaluation-result-1772597-1241174910/solver-1772597-1241174910 -C 10000 -W 6000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1772597-1241174910.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): 6000 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: 0.00 0.00 0.00 3/64 24787
/proc/meminfo: memFree=627904/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=14972 CPUtime=0
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 769 0 0 0 0 0 0 0 18 0 1 0 145524464 15331328 755 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 3743 760 46 166 0 3574 0

[startup+0.0165309 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 24787
/proc/meminfo: memFree=627904/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=14972 CPUtime=0.01
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 2719 0 0 0 0 1 0 0 18 0 1 0 145524464 15331328 2705 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 3743 2712 46 166 0 3574 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 14972

[startup+0.102548 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 24787
/proc/meminfo: memFree=627904/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=59168 CPUtime=0.09
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 11474 0 0 0 4 5 0 0 18 0 1 0 145524464 60588032 11389 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 14792 11390 54 166 0 14623 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 59168

[startup+0.301586 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 24787
/proc/meminfo: memFree=627904/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=73872 CPUtime=0.29
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 15028 0 0 0 22 7 0 0 19 0 1 0 145524464 75644928 14943 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 18468 14944 54 166 0 18299 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 73872

[startup+0.702663 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 24787
/proc/meminfo: memFree=627904/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=95524 CPUtime=0.69
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 20393 0 0 0 60 9 0 0 22 0 1 0 145524464 97816576 20308 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 23881 20308 54 166 0 23712 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 95524

[startup+1.50182 s]
/proc/loadavg: 0.00 0.00 0.00 2/65 24788
/proc/meminfo: memFree=550456/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=95028 CPUtime=1.49
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 23688 0 0 0 138 11 0 0 25 0 1 0 145524464 97308672 20071 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 23757 20071 56 166 0 23588 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 95028

[startup+3.10113 s]
/proc/loadavg: 0.08 0.02 0.01 2/65 24788
/proc/meminfo: memFree=536440/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=114936 CPUtime=3.08
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 28270 0 0 0 295 13 0 0 25 0 1 0 145524464 117694464 24653 1992294400 134512640 135192793 4294956224 18446744073709551615 134573456 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 28734 24653 56 166 0 28565 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 114936

[startup+6.40314 s]
/proc/loadavg: 0.08 0.02 0.01 2/65 24788
/proc/meminfo: memFree=536312/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=103104 CPUtime=6.04
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 29569 0 0 0 588 16 0 0 25 0 1 0 145524464 105578496 22710 1992294400 134512640 135192793 4294956224 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 25776 22710 72 166 0 25607 0
Current children cumulated CPU time (s) 6.04
Current children cumulated vsize (KiB) 103104

[startup+12.702 s]
/proc/loadavg: 0.47 0.10 0.03 2/65 24788
/proc/meminfo: memFree=536760/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=103248 CPUtime=12.31
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 29584 0 0 0 1215 16 0 0 25 0 1 0 145524464 105725952 22725 1992294400 134512640 135192793 4294956224 18446744073709551615 134551982 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 25812 22725 73 166 0 25643 0
Current children cumulated CPU time (s) 12.31
Current children cumulated vsize (KiB) 103248

[startup+25.5015 s]
/proc/loadavg: 0.59 0.14 0.05 2/65 24788
/proc/meminfo: memFree=536696/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=103380 CPUtime=25.1
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 29644 0 0 0 2494 16 0 0 25 0 1 0 145524464 105861120 22785 1992294400 134512640 135192793 4294956224 18446744073709551615 134551473 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 25845 22785 73 166 0 25676 0
Current children cumulated CPU time (s) 25.1
Current children cumulated vsize (KiB) 103380

[startup+51.1014 s]
/proc/loadavg: 0.73 0.21 0.07 2/65 24788
/proc/meminfo: memFree=536056/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=104200 CPUtime=50.69
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 29830 0 0 0 5053 16 0 0 25 0 1 0 145524464 106700800 22971 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 26050 22971 73 166 0 25881 0
Current children cumulated CPU time (s) 50.69
Current children cumulated vsize (KiB) 104200

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

[startup+53.2018 s]
/proc/loadavg: 0.75 0.22 0.08 2/65 24788
/proc/meminfo: memFree=536056/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=104200 CPUtime=52.78
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 29833 0 0 0 5262 16 0 0 25 0 1 0 145524464 106700800 22974 1992294400 134512640 135192793 4294956224 18446744073709551615 134532620 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 26050 22974 73 166 0 25881 0
Current children cumulated CPU time (s) 52.78
Current children cumulated vsize (KiB) 104200

[startup+59.6011 s]
/proc/loadavg: 0.77 0.24 0.08 2/65 24788
/proc/meminfo: memFree=535928/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=104512 CPUtime=59.19
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 29875 0 0 0 5902 17 0 0 25 0 1 0 145524464 107020288 23016 1992294400 134512640 135192793 4294956224 18446744073709551615 134532620 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 26128 23016 73 166 0 25959 0
Current children cumulated CPU time (s) 59.19
Current children cumulated vsize (KiB) 104512

[startup+61.2014 s]
/proc/loadavg: 0.77 0.24 0.08 2/65 24788
/proc/meminfo: memFree=535928/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=104512 CPUtime=60.79
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 29890 0 0 0 6062 17 0 0 25 0 1 0 145524464 107020288 23031 1992294400 134512640 135192793 4294956224 18446744073709551615 134533249 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 26128 23031 73 166 0 25959 0
Current children cumulated CPU time (s) 60.79
Current children cumulated vsize (KiB) 104512

[startup+62.8017 s]
/proc/loadavg: 0.79 0.25 0.09 2/65 24788
/proc/meminfo: memFree=535864/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=104512 CPUtime=62.39
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 29892 0 0 0 6222 17 0 0 25 0 1 0 145524464 107020288 23033 1992294400 134512640 135192793 4294956224 18446744073709551615 134533373 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 26128 23033 73 166 0 25959 0
Current children cumulated CPU time (s) 62.39
Current children cumulated vsize (KiB) 104512

[startup+63.2018 s]
/proc/loadavg: 0.79 0.25 0.09 2/65 24788
/proc/meminfo: memFree=535864/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=104512 CPUtime=62.79
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194304 29892 0 0 0 6262 17 0 0 25 0 1 0 145524464 107020288 23033 1992294400 134512640 135192793 4294956224 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 26128 23033 73 166 0 25959 0
Current children cumulated CPU time (s) 62.79
Current children cumulated vsize (KiB) 104512

[startup+63.4018 s]
/proc/loadavg: 0.79 0.25 0.09 2/65 24788
/proc/meminfo: memFree=535864/2055920 swapFree=4180712/4192956
[pid=24787] ppid=24785 vsize=0 CPUtime=62.99
/proc/24787/stat : 24787 (mxc-sat09) R 24785 24787 24750 0 -1 4194308 29895 0 0 0 6282 17 0 0 25 0 1 0 145524464 0 0 1992294400 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/24787/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 62.99
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 63.4132
CPU time (s): 63.0084
CPU user time (s): 62.8224
CPU system time (s): 0.185971
CPU usage (%): 99.3616
Max. virtual memory (cumulated for all children) (KiB): 115788

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 62.8224
system time used= 0.185971
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 29895
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= 175

runsolver used 0.305953 second user time and 0.6559 second system time

The end

Launcher Data 

Begin job on node28 at 2009-05-01 12:48:31
IDJOB=1772597
IDBENCH=20347
IDSOLVER=613
FILE ID=node28/1772597-1241174910
PBS_JOBID= 9224530
Free space on /tmp= 66260 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT07/industrial/anbulagan/medium-unsat/total-5-13-u.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1772597-1241174910/watcher-1772597-1241174910 -o /tmp/evaluation-result-1772597-1241174910/solver-1772597-1241174910 -C 10000 -W 6000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1772597-1241174910.cnf

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

MD5SUM BENCH= 127968d7d14f3ab7655995f561e62ed8
RANDOM SEED=1972163482

node28.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		: 3000.261
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		: 3000.261
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:        628384 kB
Buffers:         80792 kB
Cached:        1228724 kB
SwapCached:       5468 kB
Active:         182788 kB
Inactive:      1135456 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        628384 kB
SwapTotal:     4192956 kB
SwapFree:      4180712 kB
Dirty:           15040 kB
Writeback:           0 kB
Mapped:          14192 kB
Slab:            95076 kB
Committed_AS:   708996 kB
PageTables:       1420 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= 66260 MiB
End job on node28 at 2009-05-01 12:49:35