Trace number 1628180

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 22.2486 22.2546

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S367138237-029.cnf
MD5SUMfe0a666da3389b49d8bffa123f8cecff
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark22.2486
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 

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.01	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 360 variables and 1530 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 17 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 357 free variables and 1513 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.477
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 164 duplicate clauses
0.00/0.01	c resolvent_look() :: found 75 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1588 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 360 variabels and 1588 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1588 / 360 ) = 4.41
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c number of free variables = 357
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 0/13) NodeCount: 182
0.00/0.09	c |----------------------------------------------------------------|
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0.49/0.57	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/13) NodeCount: 27883
11.69/11.78	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/13) NodeCount: 38888
16.99/17.01	c |----------------------------------------------------------------|
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20.29/20.37	c |----------------------------------------------------------------|
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22.09/22.19	c |----------------------------------------------------------------|
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22.19/22.25	c |----------------------------------------------------------------|
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c |****************************************************************| (10/13) NodeCount: 48350
22.19/22.25	c |----------------------------------------------------------------|
c |
22.19/22.25	c
22.19/22.25	c main():: nodeCount: 48350
22.19/22.25	c main():: dead ends in main: 1403
22.19/22.25	c main():: lookAheadCount: 3319066
22.19/22.25	c main():: unitResolveCount: 557260
22.19/22.25	c main():: time=22.240000
22.19/22.25	c main():: necessary_assignments: 11843
22.19/22.25	c main():: bin_sat: 0, bin_unsat 0
22.19/22.25	c main():: doublelook: #: 188267, succes #: 135362
22.19/22.25	c main():: doublelook: overall 5.871 of all possible doublelooks executed
22.19/22.25	c main():: doublelook: succesrate: 71.899, average DL_trigger: 44.722
22.19/22.25	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-1628180-1240137814/watcher-1628180-1240137814 -o /tmp/evaluation-result-1628180-1240137814/solver-1628180-1240137814 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628180-1240137814.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 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
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: 1.00 1.00 1.00 3/64 25220
/proc/meminfo: memFree=1353024/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=972 CPUtime=0
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 134 0 0 0 0 0 0 0 18 0 1 0 41814363 995328 117 1992294400 134512640 135197378 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 243 117 66 167 0 74 0

[startup+0.101309 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25220
/proc/meminfo: memFree=1353024/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=1504 CPUtime=0.1
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 248 0 0 0 10 0 0 0 18 0 1 0 41814363 1540096 231 1992294400 134512640 135197378 4294956240 18446744073709551615 134526671 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 376 231 91 167 0 207 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1504

[startup+0.20132 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25220
/proc/meminfo: memFree=1353024/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=1504 CPUtime=0.2
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 253 0 0 0 20 0 0 0 18 0 1 0 41814363 1540096 236 1992294400 134512640 135197378 4294956240 18446744073709551615 134543756 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 376 236 91 167 0 207 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 1504

[startup+0.301329 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25220
/proc/meminfo: memFree=1353024/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=1504 CPUtime=0.29
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 255 0 0 0 29 0 0 0 19 0 1 0 41814363 1540096 238 1992294400 134512640 135197378 4294956240 18446744073709551615 134552380 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 376 238 91 167 0 207 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1504

[startup+0.70137 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25220
/proc/meminfo: memFree=1353024/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=1636 CPUtime=0.69
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 266 0 0 0 69 0 0 0 23 0 1 0 41814363 1675264 249 1992294400 134512640 135197378 4294956240 18446744073709551615 134525272 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 409 249 91 167 0 240 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1636

[startup+1.50145 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25221
/proc/meminfo: memFree=1352440/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=1636 CPUtime=1.49
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 275 0 0 0 149 0 0 0 25 0 1 0 41814363 1675264 258 1992294400 134512640 135197378 4294956240 18446744073709551615 134603831 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 409 258 91 167 0 240 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1636

[startup+3.10161 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25221
/proc/meminfo: memFree=1352248/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=1636 CPUtime=3.09
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 279 0 0 0 309 0 0 0 25 0 1 0 41814363 1675264 262 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 409 262 91 167 0 240 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1636

[startup+6.30194 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25221
/proc/meminfo: memFree=1352120/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=1636 CPUtime=6.29
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 291 0 0 0 629 0 0 0 25 0 1 0 41814363 1675264 274 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 409 274 91 167 0 240 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1636

[startup+12.7016 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25221
/proc/meminfo: memFree=1352000/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=1824 CPUtime=12.69
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 315 0 0 0 1269 0 0 0 25 0 1 0 41814363 1867776 298 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 456 298 91 167 0 287 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1824

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

[startup+12.8016 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25221
/proc/meminfo: memFree=1352000/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=1824 CPUtime=12.79
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 315 0 0 0 1279 0 0 0 25 0 1 0 41814363 1867776 298 1992294400 134512640 135197378 4294956240 18446744073709551615 134542026 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 456 298 91 167 0 287 0
Current children cumulated CPU time (s) 12.79
Current children cumulated vsize (KiB) 1824

[startup+19.2012 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25221
/proc/meminfo: memFree=1351808/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=1968 CPUtime=19.19
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 366 0 0 0 1919 0 0 0 25 0 1 0 41814363 2015232 347 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 492 347 91 167 0 323 0
Current children cumulated CPU time (s) 19.19
Current children cumulated vsize (KiB) 1968

[startup+20.8014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25221
/proc/meminfo: memFree=1351744/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=1968 CPUtime=20.79
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 373 0 0 0 2079 0 0 0 25 0 1 0 41814363 2015232 354 1992294400 134512640 135197378 4294956240 18446744073709551615 134539249 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 492 354 91 167 0 323 0
Current children cumulated CPU time (s) 20.79
Current children cumulated vsize (KiB) 1968

[startup+21.6015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25221
/proc/meminfo: memFree=1351744/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=1968 CPUtime=21.59
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 376 0 0 0 2159 0 0 0 25 0 1 0 41814363 2015232 357 1992294400 134512640 135197378 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 492 357 91 167 0 323 0
Current children cumulated CPU time (s) 21.59
Current children cumulated vsize (KiB) 1968

[startup+22.0015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25221
/proc/meminfo: memFree=1351744/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=2068 CPUtime=21.99
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 378 0 0 0 2199 0 0 0 25 0 1 0 41814363 2117632 359 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 517 359 91 167 0 348 0
Current children cumulated CPU time (s) 21.99
Current children cumulated vsize (KiB) 2068

[startup+22.2015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25221
/proc/meminfo: memFree=1351744/2055920 swapFree=4192956/4192956
[pid=25220] ppid=25218 vsize=2068 CPUtime=22.19
/proc/25220/stat : 25220 (march_hi) R 25218 25220 25115 0 -1 4194304 379 0 0 0 2219 0 0 0 25 0 1 0 41814363 2117632 360 1992294400 134512640 135197378 4294956240 18446744073709551615 134713227 0 0 4096 0 0 0 0 17 1 0 0
/proc/25220/statm: 517 360 91 167 0 348 0
Current children cumulated CPU time (s) 22.19
Current children cumulated vsize (KiB) 2068

Child status: 20
Real time (s): 22.2546
CPU time (s): 22.2486
CPU user time (s): 22.2426
CPU system time (s): 0.005999
CPU usage (%): 99.9733
Max. virtual memory (cumulated for all children) (KiB): 2068

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.2426
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= 382
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= 43

runsolver used 0.020996 second user time and 0.078987 second system time

The end

Launcher Data 

Begin job on node27 at 2009-04-19 12:43:34
IDJOB=1628180
IDBENCH=70636
IDSOLVER=583
FILE ID=node27/1628180-1240137814
PBS_JOBID= 9157850
Free space on /tmp= 66444 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S367138237-029.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628180-1240137814/watcher-1628180-1240137814 -o /tmp/evaluation-result-1628180-1240137814/solver-1628180-1240137814 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628180-1240137814.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= fe0a666da3389b49d8bffa123f8cecff
RANDOM SEED=2012534737

node27.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		: 2800.234
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	: 5521.40
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		: 2800.234
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:       1353504 kB
Buffers:         78876 kB
Cached:         545364 kB
SwapCached:          0 kB
Active:         333840 kB
Inactive:       305288 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1353504 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             788 kB
Writeback:           0 kB
Mapped:          24700 kB
Slab:            49196 kB
Committed_AS:   176576 kB
PageTables:       1372 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66444 MiB
End job on node27 at 2009-04-19 12:43:57