Trace number 1514953

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 162.454 162.504

General information on the benchmark

NameRANDOM/MEDIUM/5SAT/UNKNOWN/90/
unif-k5-r21.3-v90-c1917-S845966893-046.cnf
MD5SUM5cc6f84f110f3d0af812ff76f6bf656e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark157.978
Satisfiable
(Un)Satisfiability was proved
Number of variables90
Number of clauses1917
Sum of the clauses size9585
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 51917
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 full lookahead due to high density!
0.00/0.04	c initFormula():: the DIMACS p-line indicates a CNF of 90 variables and 1917 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, 0 satisfied and 0 duplicate clauses
0.00/0.04	c preprocessing fase I completed:: there are now 90 free variables and 1917 clauses.
0.00/0.04	c stat :: sign balance is biased by 0.032
0.00/0.04	c using k-SAT heuristics (size 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 12 duplicate clauses
0.00/0.04	c resolvent_look() :: found 10 resolvents
0.00/0.04	c main():: clause / variable ratio: ( 1927 / 90 ) = 21.41
0.00/0.04	c longest clause has size 5
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 = 90
0.00/0.04	c dynamic_preselect_setsize :: off
0.00/0.04	c main():: all systems go!
0.00/0.04	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 0/16) NodeCount: 158
0.05/0.08	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/16) NodeCount: 1342
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c |****************************************************************| ( 2/16) NodeCount: 7993
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c |****************************************************************| ( 3/16) NodeCount: 30140
8.39/8.48	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/16) NodeCount: 84299
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c |****************************************************************| ( 5/16) NodeCount: 173643
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c |****************************************************************| ( 6/16) NodeCount: 285814
81.87/81.99	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/16) NodeCount: 393263
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c |****************************************************************| ( 8/16) NodeCount: 470598
138.45/138.57	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/16) NodeCount: 513736
152.94/153.08	c |----------------------------------------------------------------|
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c |****************************************************************| (10/16) NodeCount: 531668
159.54/159.64	c |----------------------------------------------------------------|
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c |****************************************************************| (11/16) NodeCount: 537173
161.74/161.86	c |----------------------------------------------------------------|
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c |****************************************************************| (12/16) NodeCount: 538314
162.34/162.40	c |----------------------------------------------------------------|
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c |****************************************************************| (13/16) NodeCount: 538467
162.34/162.49	c |----------------------------------------------------------------|
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c |****************************************************************| (14/16) NodeCount: 538480
162.44/162.50	c |----------------------------------------------------------------|
c |
162.44/162.50	c
162.44/162.50	c main():: nodeCount: 538480
162.44/162.50	c main():: dead ends in main: 6491
162.44/162.50	c main():: lookAheadCount: 24853947
162.44/162.50	c main():: unitResolveCount: 1824569
162.44/162.50	c main():: time=162.460000
162.44/162.50	c main():: necessary_assignments: 12529
162.44/162.50	c main():: bin_sat: 0, bin_unsat 0
162.44/162.50	c main():: doublelook: #: 1983789, succes #: 1569592
162.44/162.50	c main():: doublelook: overall 8.259 of all possible doublelooks executed
162.44/162.50	c main():: doublelook: succesrate: 79.121, average DL_trigger: 25.591
162.44/162.50	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-1514953-1238247437/watcher-1514953-1238247437 -o /tmp/evaluation-result-1514953-1238247437/solver-1514953-1238247437 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1514953-1238247437.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 3/64 25302
/proc/meminfo: memFree=945952/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=972 CPUtime=0
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 111 0 0 0 0 0 0 0 18 0 1 0 1097405704 995328 95 1992294400 134512640 135197378 4294956240 18446744073709551615 134564947 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 243 95 62 167 0 74 0

[startup+0.0594539 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25302
/proc/meminfo: memFree=945952/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=1300 CPUtime=0.05
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 218 0 0 0 5 0 0 0 18 0 1 0 1097405704 1331200 201 1992294400 134512640 135197378 4294956240 18446744073709551615 134524828 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 325 201 93 167 0 156 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1300

[startup+0.101458 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25302
/proc/meminfo: memFree=945952/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=1300 CPUtime=0.09
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 218 0 0 0 9 0 0 0 18 0 1 0 1097405704 1331200 201 1992294400 134512640 135197378 4294956240 18446744073709551615 134550715 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 325 201 93 167 0 156 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1300

[startup+0.301475 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25302
/proc/meminfo: memFree=945952/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=1300 CPUtime=0.29
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 218 0 0 0 29 0 0 0 19 0 1 0 1097405704 1331200 201 1992294400 134512640 135197378 4294956240 18446744073709551615 134548752 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 325 201 93 167 0 156 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1300

[startup+0.701512 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25302
/proc/meminfo: memFree=945952/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=1300 CPUtime=0.69
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 218 0 0 0 69 0 0 0 22 0 1 0 1097405704 1331200 201 1992294400 134512640 135197378 4294956240 18446744073709551615 134539127 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 325 201 93 167 0 156 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1300

[startup+1.50158 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25303
/proc/meminfo: memFree=945496/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=1300 CPUtime=1.49
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 218 0 0 0 149 0 0 0 25 0 1 0 1097405704 1331200 201 1992294400 134512640 135197378 4294956240 18446744073709551615 134550709 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 325 201 93 167 0 156 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1300

[startup+3.10173 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25303
/proc/meminfo: memFree=945368/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=1300 CPUtime=3.09
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 225 0 0 0 309 0 0 0 25 0 1 0 1097405704 1331200 208 1992294400 134512640 135197378 4294956240 18446744073709551615 134539276 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 325 208 93 167 0 156 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1300

[startup+6.30201 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25303
/proc/meminfo: memFree=945240/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=1432 CPUtime=6.29
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 234 0 0 0 629 0 0 0 25 0 1 0 1097405704 1466368 217 1992294400 134512640 135197378 4294956240 18446744073709551615 134593059 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 358 217 93 167 0 189 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1432

[startup+12.7016 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25303
/proc/meminfo: memFree=945120/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=1432 CPUtime=12.69
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 247 0 0 0 1269 0 0 0 25 0 1 0 1097405704 1466368 230 1992294400 134512640 135197378 4294956240 18446744073709551615 134550665 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 358 230 93 167 0 189 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1432

[startup+25.5017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25303
/proc/meminfo: memFree=944864/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=1676 CPUtime=25.48
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 311 0 0 0 2548 0 0 0 25 0 1 0 1097405704 1716224 292 1992294400 134512640 135197378 4294956240 18446744073709551615 134603270 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 419 292 93 167 0 250 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1676

[startup+51.101 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25303
/proc/meminfo: memFree=944544/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=2056 CPUtime=51.07
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 384 0 0 0 5107 0 0 0 25 0 1 0 1097405704 2105344 365 1992294400 134512640 135197378 4294956240 18446744073709551615 134524899 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 514 365 93 167 0 345 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 2056

[startup+102.306 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 25303
/proc/meminfo: memFree=943712/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=2908 CPUtime=102.27
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 572 0 0 0 10226 1 0 0 25 0 1 0 1097405704 2977792 553 1992294400 134512640 135197378 4294956240 18446744073709551615 134524940 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 727 553 93 167 0 558 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 2908

[startup+162.301 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25303
/proc/meminfo: memFree=942304/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=4824 CPUtime=162.24
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 919 0 0 0 16223 1 0 0 25 0 1 0 1097405704 4939776 900 1992294400 134512640 135197378 4294956240 18446744073709551615 134550680 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 1206 900 93 167 0 1037 0
Current children cumulated CPU time (s) 162.24
Current children cumulated vsize (KiB) 4824

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

[startup+162.501 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25303
/proc/meminfo: memFree=942304/2055920 swapFree=4176708/4192956
[pid=25302] ppid=25300 vsize=4824 CPUtime=162.44
/proc/25302/stat : 25302 (march_hi) R 25300 25302 24973 0 -1 4194304 921 0 0 0 16243 1 0 0 25 0 1 0 1097405704 4939776 902 1992294400 134512640 135197378 4294956240 18446744073709551615 134605243 0 0 4096 0 0 0 0 17 1 0 0
/proc/25302/statm: 1206 902 93 167 0 1037 0
Current children cumulated CPU time (s) 162.44
Current children cumulated vsize (KiB) 4824

Child status: 20
Real time (s): 162.504
CPU time (s): 162.454
CPU user time (s): 162.434
CPU system time (s): 0.019996
CPU usage (%): 99.9697
Max. virtual memory (cumulated for all children) (KiB): 4824

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 162.434
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 922
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= 860

runsolver used 0.119981 second user time and 0.361944 second system time

The end

Launcher Data 

Begin job on node51 at 2009-03-28 14:37:17
IDJOB=1514953
IDBENCH=70389
IDSOLVER=521
FILE ID=node51/1514953-1238247437
PBS_JOBID= 9060668
Free space on /tmp= 65232 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/5SAT/UNKNOWN/90/unif-k5-r21.3-v90-c1917-S845966893-046.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1514953-1238247437/watcher-1514953-1238247437 -o /tmp/evaluation-result-1514953-1238247437/solver-1514953-1238247437 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1514953-1238247437.cnf

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

MD5SUM BENCH= 5cc6f84f110f3d0af812ff76f6bf656e
RANDOM SEED=1448711297

node51.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		: 3000.234
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	: 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		: 3000.234
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:        946368 kB
Buffers:         64136 kB
Cached:         959060 kB
SwapCached:       9996 kB
Active:         102020 kB
Inactive:       932636 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        946368 kB
SwapTotal:     4192956 kB
SwapFree:      4176708 kB
Dirty:             808 kB
Writeback:           0 kB
Mapped:          17144 kB
Slab:            60912 kB
Committed_AS:  2911684 kB
PageTables:       1400 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= 65232 MiB
End job on node51 at 2009-03-28 14:39:59