Trace number 1517941

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 16.2885 16.3033

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S404185236-001.cnf
MD5SUM0374a56a4be774bc099f027bd9c7fc30
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark16.2885
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, 4 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 359 free variables and 1526 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.487
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 90 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1616 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 1616 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1616 / 360 ) = 4.49
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 |----------------------------------------------------------------|
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c |****************************************************************| ( 0/14) NodeCount: 136
0.02/0.06	c |----------------------------------------------------------------|
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0.29/0.33	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/14) NodeCount: 17138
6.89/6.92	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/14) NodeCount: 25602
10.79/10.82	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/14) NodeCount: 31604
13.88/13.97	c |----------------------------------------------------------------|
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15.58/15.64	c |----------------------------------------------------------------|
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16.08/16.19	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/14) NodeCount: 35745
16.18/16.29	c |----------------------------------------------------------------|
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c |****************************************************************| (10/14) NodeCount: 35758
16.28/16.30	c |----------------------------------------------------------------|
c |
16.28/16.30	c
16.28/16.30	c main():: nodeCount: 35758
16.28/16.30	c main():: dead ends in main: 986
16.28/16.30	c main():: lookAheadCount: 2589161
16.28/16.30	c main():: unitResolveCount: 435683
16.28/16.30	c main():: time=16.280000
16.28/16.30	c main():: necessary_assignments: 8589
16.28/16.30	c main():: bin_sat: 0, bin_unsat 0
16.28/16.30	c main():: doublelook: #: 142629, succes #: 103446
16.28/16.30	c main():: doublelook: overall 5.695 of all possible doublelooks executed
16.28/16.30	c main():: doublelook: succesrate: 72.528, average DL_trigger: 45.663
16.28/16.30	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-1517941-1238293174/watcher-1517941-1238293174 -o /tmp/evaluation-result-1517941-1238293174/solver-1517941-1238293174 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1517941-1238293174.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: 1.00 1.00 1.00 3/73 15726
/proc/meminfo: memFree=1569280/2055920 swapFree=4170032/4192956
[pid=15726] ppid=15724 vsize=972 CPUtime=0
/proc/15726/stat : 15726 (march_hi) R 15724 15726 14906 0 -1 4194304 135 0 0 0 0 0 0 0 21 0 1 0 1101981289 995328 118 1992294400 134512640 135197378 4294956240 18446744073709551615 134560531 0 0 4096 0 0 0 0 17 1 0 0
/proc/15726/statm: 243 118 67 167 0 74 0

[startup+0.024898 s]
/proc/loadavg: 1.00 1.00 1.00 3/73 15726
/proc/meminfo: memFree=1569280/2055920 swapFree=4170032/4192956
[pid=15726] ppid=15724 vsize=1508 CPUtime=0.02
/proc/15726/stat : 15726 (march_hi) R 15724 15726 14906 0 -1 4194304 230 0 0 0 2 0 0 0 21 0 1 0 1101981289 1544192 213 1992294400 134512640 135197378 4294956240 18446744073709551615 134697414 0 0 4096 0 0 0 0 17 1 0 0
/proc/15726/statm: 377 213 91 167 0 208 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1508

[startup+0.102914 s]
/proc/loadavg: 1.00 1.00 1.00 3/73 15726
/proc/meminfo: memFree=1569280/2055920 swapFree=4170032/4192956
[pid=15726] ppid=15724 vsize=1508 CPUtime=0.09
/proc/15726/stat : 15726 (march_hi) R 15724 15726 14906 0 -1 4194304 249 0 0 0 9 0 0 0 21 0 1 0 1101981289 1544192 232 1992294400 134512640 135197378 4294956240 18446744073709551615 134649523 0 0 4096 0 0 0 0 17 1 0 0
/proc/15726/statm: 377 232 91 167 0 208 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1508

[startup+0.301953 s]
/proc/loadavg: 1.00 1.00 1.00 3/73 15726
/proc/meminfo: memFree=1569280/2055920 swapFree=4170032/4192956
[pid=15726] ppid=15724 vsize=1640 CPUtime=0.29
/proc/15726/stat : 15726 (march_hi) R 15724 15726 14906 0 -1 4194304 260 0 0 0 29 0 0 0 23 0 1 0 1101981289 1679360 243 1992294400 134512640 135197378 4294956240 18446744073709551615 134542131 0 0 4096 0 0 0 0 17 1 0 0
/proc/15726/statm: 410 243 91 167 0 241 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1640

[startup+0.701045 s]
/proc/loadavg: 1.00 1.00 1.00 3/73 15726
/proc/meminfo: memFree=1569280/2055920 swapFree=4170032/4192956
[pid=15726] ppid=15724 vsize=1640 CPUtime=0.69
/proc/15726/stat : 15726 (march_hi) R 15724 15726 14906 0 -1 4194304 267 0 0 0 69 0 0 0 25 0 1 0 1101981289 1679360 250 1992294400 134512640 135197378 4294956240 18446744073709551615 134552482 0 0 4096 0 0 0 0 17 1 0 0
/proc/15726/statm: 410 250 91 167 0 241 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1640

[startup+1.5012 s]
/proc/loadavg: 1.00 1.00 1.00 2/74 15727
/proc/meminfo: memFree=1568568/2055920 swapFree=4170032/4192956
[pid=15726] ppid=15724 vsize=1640 CPUtime=1.49
/proc/15726/stat : 15726 (march_hi) R 15724 15726 14906 0 -1 4194304 280 0 0 0 149 0 0 0 25 0 1 0 1101981289 1679360 263 1992294400 134512640 135197378 4294956240 18446744073709551615 134539292 0 0 4096 0 0 0 0 17 1 0 0
/proc/15726/statm: 410 263 91 167 0 241 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1640

[startup+3.10152 s]
/proc/loadavg: 1.00 1.00 1.00 2/74 15727
/proc/meminfo: memFree=1568440/2055920 swapFree=4170032/4192956
[pid=15726] ppid=15724 vsize=1804 CPUtime=3.09
/proc/15726/stat : 15726 (march_hi) R 15724 15726 14906 0 -1 4194304 297 0 0 0 309 0 0 0 25 0 1 0 1101981289 1847296 280 1992294400 134512640 135197378 4294956240 18446744073709551615 134539287 0 0 4096 0 0 0 0 17 1 0 0
/proc/15726/statm: 451 280 91 167 0 282 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1804

[startup+6.30117 s]
/proc/loadavg: 1.00 1.00 1.00 2/74 15727
/proc/meminfo: memFree=1568248/2055920 swapFree=4170032/4192956
[pid=15726] ppid=15724 vsize=1804 CPUtime=6.29
/proc/15726/stat : 15726 (march_hi) R 15724 15726 14906 0 -1 4194304 310 0 0 0 629 0 0 0 25 0 1 0 1101981289 1847296 293 1992294400 134512640 135197378 4294956240 18446744073709551615 134548478 0 0 4096 0 0 0 0 17 1 0 0
/proc/15726/statm: 451 293 91 167 0 282 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1804

[startup+12.7015 s]
/proc/loadavg: 1.00 1.00 1.00 2/74 15727
/proc/meminfo: memFree=1567864/2055920 swapFree=4170032/4192956
[pid=15726] ppid=15724 vsize=2108 CPUtime=12.68
/proc/15726/stat : 15726 (march_hi) R 15724 15726 14906 0 -1 4194304 383 0 0 0 1268 0 0 0 25 0 1 0 1101981289 2158592 366 1992294400 134512640 135197378 4294956240 18446744073709551615 134539276 0 0 4096 0 0 0 0 17 1 0 0
/proc/15726/statm: 527 366 91 167 0 358 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 2108

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

[startup+14.3068 s]
/proc/loadavg: 1.00 1.00 1.00 2/74 15727
/proc/meminfo: memFree=1567800/2055920 swapFree=4170032/4192956
[pid=15726] ppid=15724 vsize=2108 CPUtime=14.28
/proc/15726/stat : 15726 (march_hi) R 15724 15726 14906 0 -1 4194304 394 0 0 0 1428 0 0 0 25 0 1 0 1101981289 2158592 377 1992294400 134512640 135197378 4294956240 18446744073709551615 134542058 0 0 4096 0 0 0 0 17 1 0 0
/proc/15726/statm: 527 377 91 167 0 358 0
Current children cumulated CPU time (s) 14.28
Current children cumulated vsize (KiB) 2108

[startup+15.102 s]
/proc/loadavg: 1.00 1.00 1.00 2/74 15727
/proc/meminfo: memFree=1567800/2055920 swapFree=4170032/4192956
[pid=15726] ppid=15724 vsize=2108 CPUtime=15.08
/proc/15726/stat : 15726 (march_hi) R 15724 15726 14906 0 -1 4194304 398 0 0 0 1508 0 0 0 25 0 1 0 1101981289 2158592 381 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/15726/statm: 527 381 91 167 0 358 0
Current children cumulated CPU time (s) 15.08
Current children cumulated vsize (KiB) 2108

[startup+15.9021 s]
/proc/loadavg: 1.00 1.00 1.00 2/74 15727
/proc/meminfo: memFree=1567800/2055920 swapFree=4170032/4192956
[pid=15726] ppid=15724 vsize=2108 CPUtime=15.88
/proc/15726/stat : 15726 (march_hi) R 15724 15726 14906 0 -1 4194304 404 0 0 0 1588 0 0 0 25 0 1 0 1101981289 2158592 387 1992294400 134512640 135197378 4294956240 18446744073709551615 134552435 0 0 4096 0 0 0 0 17 1 0 0
/proc/15726/statm: 527 387 91 167 0 358 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 2108

[startup+16.3012 s]
/proc/loadavg: 1.00 1.00 1.00 2/74 15727
/proc/meminfo: memFree=1567800/2055920 swapFree=4170032/4192956
[pid=15726] ppid=15724 vsize=2260 CPUtime=16.28
/proc/15726/stat : 15726 (march_hi) R 15724 15726 14906 0 -1 4194304 407 0 0 0 1628 0 0 0 25 0 1 0 1101981289 2314240 390 1992294400 134512640 135197378 4294956240 18446744073709551615 134539323 0 0 4096 0 0 0 0 17 1 0 0
/proc/15726/statm: 565 390 91 167 0 396 0
Current children cumulated CPU time (s) 16.28
Current children cumulated vsize (KiB) 2260

Child status: 20
Real time (s): 16.3033
CPU time (s): 16.2885
CPU user time (s): 16.2825
CPU system time (s): 0.005999
CPU usage (%): 99.9095
Max. virtual memory (cumulated for all children) (KiB): 2260

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.2825
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= 410
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= 339

runsolver used 0.015997 second user time and 0.06299 second system time

The end

Launcher Data 

Begin job on node80 at 2009-03-29 04:19:34
IDJOB=1517941
IDBENCH=70638
IDSOLVER=521
FILE ID=node80/1517941-1238293174
PBS_JOBID= 9060983
Free space on /tmp= 64692 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S404185236-001.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517941-1238293174/watcher-1517941-1238293174 -o /tmp/evaluation-result-1517941-1238293174/solver-1517941-1238293174 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1517941-1238293174.cnf

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

MD5SUM BENCH= 0374a56a4be774bc099f027bd9c7fc30
RANDOM SEED=2111696562

node80.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		: 3000.263
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		: 3000.263
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:       1569760 kB
Buffers:         59140 kB
Cached:         352176 kB
SwapCached:      14432 kB
Active:         110300 kB
Inactive:       317228 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1569760 kB
SwapTotal:     4192956 kB
SwapFree:      4170032 kB
Dirty:             788 kB
Writeback:           0 kB
Mapped:          21860 kB
Slab:            43796 kB
Committed_AS:  2773452 kB
PageTables:       2008 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= 64692 MiB
End job on node80 at 2009-03-29 04:19:50