Trace number 1517977

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
march_hi hiUNSAT 10.9933 12.26

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S1906521511-089.cnf
MD5SUM9c1fb07d5218acc7d1bc3d4acef5e909
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark10.9933
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.04	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.04	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.04	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.04	c main()::
0.00/0.04	c initFormula():: searching for DIMACS p-line....
0.00/0.04	c initFormula():: the DIMACS p-line indicates a CNF of 360 variables and 1530 clauses.
0.00/0.04	c parseCNF():: parsing....
0.00/0.04	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.04	c runParser():: parsing was successful, warming up engines...
0.00/0.04	c simplify_formula():: removed 0 tautological, 3 satisfied and 0 duplicate clauses
0.00/0.04	c preprocessing fase I completed:: there are now 359 free variables and 1527 clauses.
0.00/0.04	c stat :: sign balance is biased by 0.413
0.00/0.04	c using 3-SAT heuristics (occurence based diff)
0.00/0.04	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.04	c simplify_formula():: removed 0 tautological, 0 satisfied and 181 duplicate clauses
0.00/0.04	c resolvent_look() :: found 102 resolvents
0.00/0.04	c lessRedundantTransformation():: nothing to be done.
0.00/0.04	c transformTo3SAT():: you gave me 360 variables and 1629 clauses.
0.00/0.04	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.04	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.04	c transformTo3SAT():: the transformation yielded 360 variabels and 1629 clauses.
0.00/0.04	c main():: clause / variable ratio: ( 1629 / 360 ) = 4.53
0.00/0.04	c longest clause has size 3
0.00/0.04	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.04	c number of free variables = 359
0.00/0.04	c dynamic_preselect_setsize :: off
0.00/0.04	c main():: all systems go!
0.00/0.04	c |----------------------------------------------------------------|
c |*
c |**
c |****
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c |****************
c |********************************
c |****************************************************************| (0/9) NodeCount: 122
0.09/0.10	c |----------------------------------------------------------------|
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c |****************************************************************| (1/9) NodeCount: 1843
0.66/0.79	c |----------------------------------------------------------------|
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c |****************************************************************| (2/9) NodeCount: 6542
2.65/2.94	c |----------------------------------------------------------------|
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c |****************************************************************| (3/9) NodeCount: 13815
5.74/6.41	c |----------------------------------------------------------------|
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c |****************************************************************| (4/9) NodeCount: 20135
8.61/9.64	c |----------------------------------------------------------------|
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c |****************************************************************| (5/9) NodeCount: 23473
10.24/11.49	c |----------------------------------------------------------------|
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c |****************************************************************| (6/9) NodeCount: 24485
10.85/12.12	c |----------------------------------------------------------------|
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c |****************************************************************| (7/9) NodeCount: 24662
10.94/12.25	c |----------------------------------------------------------------|
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c |****************************************************************| (8/9) NodeCount: 24671
10.94/12.25	c |----------------------------------------------------------------|
c |
10.94/12.25	c
10.94/12.25	c main():: nodeCount: 24671
10.94/12.25	c main():: dead ends in main: 379
10.94/12.25	c main():: lookAheadCount: 1901968
10.94/12.25	c main():: unitResolveCount: 211274
10.94/12.25	c main():: time=10.980000
10.94/12.25	c main():: necessary_assignments: 3995
10.94/12.25	c main():: bin_sat: 0, bin_unsat 0
10.94/12.25	c main():: doublelook: #: 102487, succes #: 74985
10.94/12.25	c main():: doublelook: overall 5.550 of all possible doublelooks executed
10.94/12.25	c main():: doublelook: succesrate: 73.165, average DL_trigger: 48.623
10.94/12.25	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1517977-1238293566/watcher-1517977-1238293566 -o /tmp/evaluation-result-1517977-1238293566/solver-1517977-1238293566 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1517977-1238293566.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: 3.05 2.69 2.28 4/93 22329
/proc/meminfo: memFree=1604264/2055920 swapFree=4170308/4192956
[pid=22329] ppid=22327 vsize=972 CPUtime=0
/proc/22329/stat : 22329 (march_hi) R 22327 22329 31981 0 -1 4194304 146 0 0 0 0 0 0 0 18 0 1 0 1102020611 995328 129 1992294400 134512640 135197378 4294956240 18446744073709551615 134619088 0 0 4096 0 0 0 0 17 0 0 0
/proc/22329/statm: 243 129 78 167 0 74 0

[startup+0.0590951 s]
/proc/loadavg: 3.05 2.69 2.28 4/93 22329
/proc/meminfo: memFree=1604264/2055920 swapFree=4170308/4192956
[pid=22329] ppid=22327 vsize=1508 CPUtime=0.05
/proc/22329/stat : 22329 (march_hi) R 22327 22329 31981 0 -1 4194304 235 0 0 0 5 0 0 0 18 0 1 0 1102020611 1544192 218 1992294400 134512640 135197378 4294956240 18446744073709551615 134596915 0 0 4096 0 0 0 0 17 0 0 0
/proc/22329/statm: 377 218 91 167 0 208 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1508

[startup+0.1011 s]
/proc/loadavg: 3.05 2.69 2.28 4/93 22329
/proc/meminfo: memFree=1604264/2055920 swapFree=4170308/4192956
[pid=22329] ppid=22327 vsize=1508 CPUtime=0.09
/proc/22329/stat : 22329 (march_hi) R 22327 22329 31981 0 -1 4194304 240 0 0 0 9 0 0 0 18 0 1 0 1102020611 1544192 223 1992294400 134512640 135197378 4294956240 18446744073709551615 134539368 0 0 4096 0 0 0 0 17 0 0 0
/proc/22329/statm: 377 223 91 167 0 208 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1508

[startup+0.301125 s]
/proc/loadavg: 3.05 2.69 2.28 4/93 22329
/proc/meminfo: memFree=1604264/2055920 swapFree=4170308/4192956
[pid=22329] ppid=22327 vsize=1508 CPUtime=0.29
/proc/22329/stat : 22329 (march_hi) R 22327 22329 31981 0 -1 4194304 253 0 0 0 29 0 0 0 19 0 1 0 1102020611 1544192 236 1992294400 134512640 135197378 4294956240 18446744073709551615 134539344 0 0 4096 0 0 0 0 17 0 0 0
/proc/22329/statm: 377 236 91 167 0 208 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1508

[startup+0.701176 s]
/proc/loadavg: 3.05 2.69 2.28 4/93 22329
/proc/meminfo: memFree=1604264/2055920 swapFree=4170308/4192956
[pid=22329] ppid=22327 vsize=1640 CPUtime=0.66
/proc/22329/stat : 22329 (march_hi) R 22327 22329 31981 0 -1 4194304 260 0 0 0 66 0 0 0 23 0 1 0 1102020611 1679360 243 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 0 0 0
/proc/22329/statm: 410 243 91 167 0 241 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 1640

[startup+1.50128 s]
/proc/loadavg: 3.05 2.69 2.28 4/94 22398
/proc/meminfo: memFree=1602976/2055920 swapFree=4170308/4192956
[pid=22329] ppid=22327 vsize=1640 CPUtime=1.41
/proc/22329/stat : 22329 (march_hi) R 22327 22329 31981 0 -1 4194304 268 0 0 0 141 0 0 0 25 0 1 0 1102020611 1679360 251 1992294400 134512640 135197378 4294956240 18446744073709551615 134649523 0 0 4096 0 0 0 0 17 0 0 0
/proc/22329/statm: 410 251 91 167 0 241 0
Current children cumulated CPU time (s) 1.41
Current children cumulated vsize (KiB) 1640

[startup+3.10148 s]
/proc/loadavg: 3.05 2.69 2.28 4/94 22490
/proc/meminfo: memFree=1603040/2055920 swapFree=4170308/4192956
[pid=22329] ppid=22327 vsize=1640 CPUtime=2.83
/proc/22329/stat : 22329 (march_hi) R 22327 22329 31981 0 -1 4194304 272 0 0 0 283 0 0 0 25 0 1 0 1102020611 1679360 255 1992294400 134512640 135197378 4294956240 18446744073709551615 134611762 0 0 4096 0 0 0 0 17 0 0 0
/proc/22329/statm: 410 255 91 167 0 241 0
Current children cumulated CPU time (s) 2.83
Current children cumulated vsize (KiB) 1640

[startup+6.30188 s]
/proc/loadavg: 3.12 2.72 2.29 4/94 22794
/proc/meminfo: memFree=1601952/2055920 swapFree=4170308/4192956
[pid=22329] ppid=22327 vsize=1640 CPUtime=5.64
/proc/22329/stat : 22329 (march_hi) R 22327 22329 31981 0 -1 4194304 276 0 0 0 564 0 0 0 25 0 1 0 1102020611 1679360 259 1992294400 134512640 135197378 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 0 0 0
/proc/22329/statm: 410 259 91 167 0 241 0
Current children cumulated CPU time (s) 5.64
Current children cumulated vsize (KiB) 1640

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

[startup+9.50128 s]
/proc/loadavg: 3.11 2.72 2.29 4/93 23094
/proc/meminfo: memFree=1601832/2055920 swapFree=4170308/4192956
[pid=22329] ppid=22327 vsize=1640 CPUtime=8.53
/proc/22329/stat : 22329 (march_hi) R 22327 22329 31981 0 -1 4194304 281 0 0 0 853 0 0 0 25 0 1 0 1102020611 1679360 264 1992294400 134512640 135197378 4294956240 18446744073709551615 134541235 0 0 4096 0 0 0 0 17 0 0 0
/proc/22329/statm: 410 264 91 167 0 241 0
Current children cumulated CPU time (s) 8.53
Current children cumulated vsize (KiB) 1640

[startup+11.1015 s]
/proc/loadavg: 3.11 2.72 2.29 4/93 23294
/proc/meminfo: memFree=1601256/2055920 swapFree=4170308/4192956
[pid=22329] ppid=22327 vsize=1640 CPUtime=9.96
/proc/22329/stat : 22329 (march_hi) R 22327 22329 31981 0 -1 4194304 287 0 0 0 996 0 0 0 25 0 1 0 1102020611 1679360 270 1992294400 134512640 135197378 4294956240 18446744073709551615 134543831 0 0 4096 0 0 0 0 17 0 0 0
/proc/22329/statm: 410 270 91 167 0 241 0
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (KiB) 1640

[startup+11.9026 s]
/proc/loadavg: 3.11 2.72 2.29 4/93 23294
/proc/meminfo: memFree=1601256/2055920 swapFree=4170308/4192956
[pid=22329] ppid=22327 vsize=1640 CPUtime=10.65
/proc/22329/stat : 22329 (march_hi) R 22327 22329 31981 0 -1 4194304 287 0 0 0 1065 0 0 0 25 0 1 0 1102020611 1679360 270 1992294400 134512640 135197378 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 0 0 0
/proc/22329/statm: 410 270 91 167 0 241 0
Current children cumulated CPU time (s) 10.65
Current children cumulated vsize (KiB) 1640

[startup+12.1086 s]
/proc/loadavg: 3.11 2.72 2.29 3/94 23402
/proc/meminfo: memFree=1601440/2055920 swapFree=4170308/4192956
[pid=22329] ppid=22327 vsize=1640 CPUtime=10.85
/proc/22329/stat : 22329 (march_hi) R 22327 22329 31981 0 -1 4194304 287 0 0 0 1085 0 0 0 25 0 1 0 1102020611 1679360 270 1992294400 134512640 135197378 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 0 0 0
/proc/22329/statm: 410 270 91 167 0 241 0
Current children cumulated CPU time (s) 10.85
Current children cumulated vsize (KiB) 1640

[startup+12.2026 s]
/proc/loadavg: 3.11 2.72 2.29 3/94 23402
/proc/meminfo: memFree=1601440/2055920 swapFree=4170308/4192956
[pid=22329] ppid=22327 vsize=1640 CPUtime=10.94
/proc/22329/stat : 22329 (march_hi) R 22327 22329 31981 0 -1 4194304 287 0 0 0 1094 0 0 0 25 0 1 0 1102020611 1679360 270 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 0 0 0
/proc/22329/statm: 410 270 91 167 0 241 0
Current children cumulated CPU time (s) 10.94
Current children cumulated vsize (KiB) 1640

Child status: 20
Real time (s): 12.26
CPU time (s): 10.9933
CPU user time (s): 10.9873
CPU system time (s): 0.005999
CPU usage (%): 89.6679
Max. virtual memory (cumulated for all children) (KiB): 1640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.9873
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 290
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= 993

runsolver used 0.031995 second user time and 0.05999 second system time

The end

Launcher Data 

Begin job on node92 at 2009-03-29 04:26:06
IDJOB=1517977
IDBENCH=70641
IDSOLVER=521
FILE ID=node92/1517977-1238293566
PBS_JOBID= 9060993
Free space on /tmp= 66560 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S1906521511-089.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517977-1238293566/watcher-1517977-1238293566 -o /tmp/evaluation-result-1517977-1238293566/solver-1517977-1238293566 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1517977-1238293566.cnf

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

MD5SUM BENCH= 9c1fb07d5218acc7d1bc3d4acef5e909
RANDOM SEED=362615501

node92.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		: 3000.249
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		: 3000.249
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1604808 kB
Buffers:         62936 kB
Cached:         319208 kB
SwapCached:       7632 kB
Active:         125924 kB
Inactive:       267400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1604808 kB
SwapTotal:     4192956 kB
SwapFree:      4170308 kB
Dirty:            1460 kB
Writeback:           0 kB
Mapped:          17344 kB
Slab:            41332 kB
Committed_AS:  1883888 kB
PageTables:       3044 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= 66560 MiB
End job on node92 at 2009-03-29 04:26:18