Trace number 1628184

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 10.5624 10.5655

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S253750560-086.cnf
MD5SUM1510e2158cc54ae2963f5611496bde02
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark10.5624
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, 6 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 359 free variables and 1524 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.426
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 143 duplicate clauses
0.00/0.01	c resolvent_look() :: found 72 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1596 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 1596 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1596 / 360 ) = 4.43
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 = 359
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
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c |********************************
c |****************************************************************| ( 0/12) NodeCount: 139
0.00/0.06	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 1/12) NodeCount: 1135
0.39/0.43	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/12) NodeCount: 3845
1.39/1.47	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/12) NodeCount: 9112
3.49/3.57	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/12) NodeCount: 15236
6.19/6.21	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/12) NodeCount: 20041
8.49/8.54	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/12) NodeCount: 22359
9.89/9.92	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/12) NodeCount: 23077
10.39/10.44	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/12) NodeCount: 23244
10.49/10.55	c |----------------------------------------------------------------|
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c |****************
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c |****************************************************************| ( 9/12) NodeCount: 23257
10.49/10.56	c |----------------------------------------------------------------|
c |
10.49/10.56	c
10.49/10.56	c main():: nodeCount: 23257
10.49/10.56	c main():: dead ends in main: 448
10.49/10.56	c main():: lookAheadCount: 1814177
10.49/10.56	c main():: unitResolveCount: 233342
10.49/10.56	c main():: time=10.550000
10.49/10.56	c main():: necessary_assignments: 4507
10.49/10.56	c main():: bin_sat: 0, bin_unsat 0
10.49/10.56	c main():: doublelook: #: 95884, succes #: 70023
10.49/10.56	c main():: doublelook: overall 5.446 of all possible doublelooks executed
10.49/10.56	c main():: doublelook: succesrate: 73.029, average DL_trigger: 48.799
10.49/10.56	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-1628184-1240138907/watcher-1628184-1240138907 -o /tmp/evaluation-result-1628184-1240138907/solver-1628184-1240138907 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628184-1240138907.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 3/65 25049
/proc/meminfo: memFree=1393328/2055920 swapFree=4192956/4192956
[pid=25049] ppid=25047 vsize=972 CPUtime=0
/proc/25049/stat : 25049 (march_hi) R 25047 25049 24955 0 -1 4194304 134 0 0 0 0 0 0 0 20 0 1 0 41919860 995328 117 1992294400 134512640 135197378 4294956240 18446744073709551615 134560817 0 0 4096 0 0 0 0 17 1 0 0
/proc/25049/statm: 243 117 66 167 0 74 0

[startup+0.00736507 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 25049
/proc/meminfo: memFree=1393328/2055920 swapFree=4192956/4192956
[pid=25049] ppid=25047 vsize=972 CPUtime=0
/proc/25049/stat : 25049 (march_hi) R 25047 25049 24955 0 -1 4194304 146 0 0 0 0 0 0 0 20 0 1 0 41919860 995328 129 1992294400 134512640 135197378 4294956240 18446744073709551615 134619647 0 0 4096 0 0 0 0 17 1 0 0
/proc/25049/statm: 243 129 78 167 0 74 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 972

[startup+0.101374 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 25049
/proc/meminfo: memFree=1393328/2055920 swapFree=4192956/4192956
[pid=25049] ppid=25047 vsize=1512 CPUtime=0.09
/proc/25049/stat : 25049 (march_hi) R 25047 25049 24955 0 -1 4194304 246 0 0 0 9 0 0 0 20 0 1 0 41919860 1548288 229 1992294400 134512640 135197378 4294956240 18446744073709551615 134525281 0 0 4096 0 0 0 0 17 1 0 0
/proc/25049/statm: 378 229 91 167 0 209 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1512

[startup+0.301396 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 25049
/proc/meminfo: memFree=1393328/2055920 swapFree=4192956/4192956
[pid=25049] ppid=25047 vsize=1512 CPUtime=0.29
/proc/25049/stat : 25049 (march_hi) R 25047 25049 24955 0 -1 4194304 255 0 0 0 29 0 0 0 22 0 1 0 41919860 1548288 238 1992294400 134512640 135197378 4294956240 18446744073709551615 134542222 0 0 4096 0 0 0 0 17 1 0 0
/proc/25049/statm: 378 238 91 167 0 209 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1512

[startup+0.701441 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 25049
/proc/meminfo: memFree=1393328/2055920 swapFree=4192956/4192956
[pid=25049] ppid=25047 vsize=1644 CPUtime=0.69
/proc/25049/stat : 25049 (march_hi) R 25047 25049 24955 0 -1 4194304 261 0 0 0 69 0 0 0 25 0 1 0 41919860 1683456 244 1992294400 134512640 135197378 4294956240 18446744073709551615 134590377 0 0 4096 0 0 0 0 17 1 0 0
/proc/25049/statm: 411 244 91 167 0 242 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1644

[startup+1.50153 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 25050
/proc/meminfo: memFree=1392680/2055920 swapFree=4192956/4192956
[pid=25049] ppid=25047 vsize=1644 CPUtime=1.49
/proc/25049/stat : 25049 (march_hi) R 25047 25049 24955 0 -1 4194304 273 0 0 0 149 0 0 0 25 0 1 0 41919860 1683456 256 1992294400 134512640 135197378 4294956240 18446744073709551615 134522781 0 0 4096 0 0 0 0 17 1 0 0
/proc/25049/statm: 411 256 91 167 0 242 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1644

[startup+3.10171 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 25050
/proc/meminfo: memFree=1392488/2055920 swapFree=4192956/4192956
[pid=25049] ppid=25047 vsize=1644 CPUtime=3.09
/proc/25049/stat : 25049 (march_hi) R 25047 25049 24955 0 -1 4194304 279 0 0 0 309 0 0 0 25 0 1 0 41919860 1683456 262 1992294400 134512640 135197378 4294956240 18446744073709551615 134525346 0 0 4096 0 0 0 0 17 1 0 0
/proc/25049/statm: 411 262 91 167 0 242 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1644

[startup+6.30106 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 25050
/proc/meminfo: memFree=1392424/2055920 swapFree=4192956/4192956
[pid=25049] ppid=25047 vsize=1788 CPUtime=6.29
/proc/25049/stat : 25049 (march_hi) R 25047 25049 24955 0 -1 4194304 295 0 0 0 629 0 0 0 25 0 1 0 41919860 1830912 278 1992294400 134512640 135197378 4294956240 18446744073709551615 134552735 0 0 4096 0 0 0 0 17 1 0 0
/proc/25049/statm: 447 278 91 167 0 278 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1788

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

[startup+7.90125 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 25050
/proc/meminfo: memFree=1392424/2055920 swapFree=4192956/4192956
[pid=25049] ppid=25047 vsize=1788 CPUtime=7.89
/proc/25049/stat : 25049 (march_hi) R 25047 25049 24955 0 -1 4194304 302 0 0 0 789 0 0 0 25 0 1 0 41919860 1830912 285 1992294400 134512640 135197378 4294956240 18446744073709551615 134593937 0 0 4096 0 0 0 0 17 1 0 0
/proc/25049/statm: 447 285 91 167 0 278 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 1788

[startup+9.50142 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 25050
/proc/meminfo: memFree=1392296/2055920 swapFree=4192956/4192956
[pid=25049] ppid=25047 vsize=1924 CPUtime=9.49
/proc/25049/stat : 25049 (march_hi) R 25047 25049 24955 0 -1 4194304 331 0 0 0 949 0 0 0 25 0 1 0 41919860 1970176 314 1992294400 134512640 135197378 4294956240 18446744073709551615 134572875 0 0 4096 0 0 0 0 17 1 0 0
/proc/25049/statm: 481 314 91 167 0 312 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 1924

[startup+10.3015 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 25050
/proc/meminfo: memFree=1392296/2055920 swapFree=4192956/4192956
[pid=25049] ppid=25047 vsize=1924 CPUtime=10.29
/proc/25049/stat : 25049 (march_hi) R 25047 25049 24955 0 -1 4194304 335 0 0 0 1029 0 0 0 25 0 1 0 41919860 1970176 318 1992294400 134512640 135197378 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/25049/statm: 481 318 91 167 0 312 0
Current children cumulated CPU time (s) 10.29
Current children cumulated vsize (KiB) 1924

[startup+10.5025 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 25050
/proc/meminfo: memFree=1392296/2055920 swapFree=4192956/4192956
[pid=25049] ppid=25047 vsize=1924 CPUtime=10.49
/proc/25049/stat : 25049 (march_hi) R 25047 25049 24955 0 -1 4194304 336 0 0 0 1049 0 0 0 25 0 1 0 41919860 1970176 319 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/25049/statm: 481 319 91 167 0 312 0
Current children cumulated CPU time (s) 10.49
Current children cumulated vsize (KiB) 1924

Child status: 20
Real time (s): 10.5655
CPU time (s): 10.5624
CPU user time (s): 10.5544
CPU system time (s): 0.007998
CPU usage (%): 99.9708
Max. virtual memory (cumulated for all children) (KiB): 1924

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.5544
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 339
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= 11

runsolver used 0.015997 second user time and 0.031995 second system time

The end

Launcher Data 

Begin job on node87 at 2009-04-19 13:01:47
IDJOB=1628184
IDBENCH=70640
IDSOLVER=583
FILE ID=node87/1628184-1240138907
PBS_JOBID= 9157888
Free space on /tmp= 66472 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S253750560-086.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628184-1240138907/watcher-1628184-1240138907 -o /tmp/evaluation-result-1628184-1240138907/solver-1628184-1240138907 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628184-1240138907.cnf

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

MD5SUM BENCH= 1510e2158cc54ae2963f5611496bde02
RANDOM SEED=1509947930

node87.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1393744 kB
Buffers:         82436 kB
Cached:         482984 kB
SwapCached:          0 kB
Active:         226740 kB
Inactive:       352504 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1393744 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             800 kB
Writeback:           0 kB
Mapped:          23524 kB
Slab:            68772 kB
Committed_AS:   166412 kB
PageTables:       1456 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= 66472 MiB
End job on node87 at 2009-04-19 13:01:57