Trace number 1628182

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 17.4343 17.4436

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 benchmark17.4343
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 |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 0/14) NodeCount: 136
0.00/0.07	c |----------------------------------------------------------------|
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0.30/0.35	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/14) NodeCount: 3409
1.40/1.40	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/14) NodeCount: 17138
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c |****************************************************************| ( 6/14) NodeCount: 31604
14.89/14.95	c |----------------------------------------------------------------|
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16.69/16.73	c |----------------------------------------------------------------|
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17.28/17.32	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/14) NodeCount: 35745
17.38/17.43	c |----------------------------------------------------------------|
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c |****************************************************************| (10/14) NodeCount: 35758
17.38/17.44	c |----------------------------------------------------------------|
c |
17.38/17.44	c
17.38/17.44	c main():: nodeCount: 35758
17.38/17.44	c main():: dead ends in main: 986
17.38/17.44	c main():: lookAheadCount: 2589161
17.38/17.44	c main():: unitResolveCount: 435683
17.38/17.44	c main():: time=17.430000
17.38/17.44	c main():: necessary_assignments: 8589
17.38/17.44	c main():: bin_sat: 0, bin_unsat 0
17.38/17.44	c main():: doublelook: #: 142629, succes #: 103446
17.38/17.44	c main():: doublelook: overall 5.695 of all possible doublelooks executed
17.38/17.44	c main():: doublelook: succesrate: 72.528, average DL_trigger: 45.663
17.38/17.44	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-1628182-1240138287/watcher-1628182-1240138287 -o /tmp/evaluation-result-1628182-1240138287/solver-1628182-1240138287 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628182-1240138287.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: 0.85 0.97 0.99 3/64 24841
/proc/meminfo: memFree=1351600/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=972 CPUtime=0
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 134 0 0 0 0 0 0 0 18 0 1 0 41853128 995328 117 1992294400 134512640 135197378 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 243 117 66 167 0 74 0

[startup+0.084665 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 24841
/proc/meminfo: memFree=1351600/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=1508 CPUtime=0.08
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 247 0 0 0 8 0 0 0 18 0 1 0 41853128 1544192 230 1992294400 134512640 135197378 4294956240 18446744073709551615 134718686 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 377 230 91 167 0 208 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1508

[startup+0.101667 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 24841
/proc/meminfo: memFree=1351600/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=1508 CPUtime=0.1
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 249 0 0 0 10 0 0 0 18 0 1 0 41853128 1544192 232 1992294400 134512640 135197378 4294956240 18446744073709551615 134697414 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 377 232 91 167 0 208 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1508

[startup+0.301694 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 24841
/proc/meminfo: memFree=1351600/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=1640 CPUtime=0.3
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 258 0 0 0 30 0 0 0 19 0 1 0 41853128 1679360 241 1992294400 134512640 135197378 4294956240 18446744073709551615 134525296 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 410 241 91 167 0 241 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1640

[startup+0.701751 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 24841
/proc/meminfo: memFree=1351600/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=1640 CPUtime=0.7
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 266 0 0 0 70 0 0 0 23 0 1 0 41853128 1679360 249 1992294400 134512640 135197378 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 410 249 91 167 0 241 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1640

[startup+1.50287 s]
/proc/loadavg: 0.85 0.97 0.99 2/65 24842
/proc/meminfo: memFree=1350888/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=1640 CPUtime=1.5
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 280 0 0 0 150 0 0 0 25 0 1 0 41853128 1679360 263 1992294400 134512640 135197378 4294956240 18446744073709551615 134552408 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 410 263 91 167 0 241 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1640

[startup+3.10109 s]
/proc/loadavg: 0.85 0.97 0.99 2/65 24842
/proc/meminfo: memFree=1350696/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=1640 CPUtime=3.09
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 285 0 0 0 309 0 0 0 25 0 1 0 41853128 1679360 268 1992294400 134512640 135197378 4294956240 18446744073709551615 134525272 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 410 268 91 167 0 241 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1640

[startup+6.30155 s]
/proc/loadavg: 0.86 0.97 0.99 2/65 24842
/proc/meminfo: memFree=1350632/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=1804 CPUtime=6.29
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 308 0 0 0 629 0 0 0 25 0 1 0 41853128 1847296 291 1992294400 134512640 135197378 4294956240 18446744073709551615 134617941 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 451 291 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: 0.87 0.97 0.99 2/65 24842
/proc/meminfo: memFree=1350272/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=2108 CPUtime=12.69
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 379 0 0 0 1269 0 0 0 25 0 1 0 41853128 2158592 362 1992294400 134512640 135197378 4294956240 18446744073709551615 134525296 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 527 362 91 167 0 358 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2108

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

[startup+15.9019 s]
/proc/loadavg: 0.88 0.97 0.99 2/65 24842
/proc/meminfo: memFree=1350144/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=2108 CPUtime=15.89
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 398 0 0 0 1589 0 0 0 25 0 1 0 41853128 2158592 381 1992294400 134512640 135197378 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 527 381 91 167 0 358 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 2108

[startup+16.702 s]
/proc/loadavg: 0.88 0.97 0.99 2/65 24842
/proc/meminfo: memFree=1350144/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=2108 CPUtime=16.69
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 402 0 0 0 1669 0 0 0 25 0 1 0 41853128 2158592 385 1992294400 134512640 135197378 4294956240 18446744073709551615 134525272 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 527 385 91 167 0 358 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 2108

[startup+17.1011 s]
/proc/loadavg: 0.88 0.97 0.99 2/65 24842
/proc/meminfo: memFree=1350144/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=2108 CPUtime=17.08
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 405 0 0 0 1708 0 0 0 25 0 1 0 41853128 2158592 388 1992294400 134512640 135197378 4294956240 18446744073709551615 134525281 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 527 388 91 167 0 358 0
Current children cumulated CPU time (s) 17.08
Current children cumulated vsize (KiB) 2108

[startup+17.3011 s]
/proc/loadavg: 0.88 0.97 0.99 2/65 24842
/proc/meminfo: memFree=1350144/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=2260 CPUtime=17.28
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 406 0 0 0 1728 0 0 0 25 0 1 0 41853128 2314240 389 1992294400 134512640 135197378 4294956240 18446744073709551615 134597821 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 565 389 91 167 0 396 0
Current children cumulated CPU time (s) 17.28
Current children cumulated vsize (KiB) 2260

[startup+17.4011 s]
/proc/loadavg: 0.88 0.97 0.99 2/65 24842
/proc/meminfo: memFree=1350144/2055920 swapFree=4192956/4192956
[pid=24841] ppid=24839 vsize=2260 CPUtime=17.38
/proc/24841/stat : 24841 (march_hi) R 24839 24841 24804 0 -1 4194304 406 0 0 0 1738 0 0 0 25 0 1 0 41853128 2314240 389 1992294400 134512640 135197378 4294956240 18446744073709551615 134605243 0 0 4096 0 0 0 0 17 1 0 0
/proc/24841/statm: 565 389 91 167 0 396 0
Current children cumulated CPU time (s) 17.38
Current children cumulated vsize (KiB) 2260

Child status: 20
Real time (s): 17.4436
CPU time (s): 17.4343
CPU user time (s): 17.4283
CPU system time (s): 0.005999
CPU usage (%): 99.9471
Max. virtual memory (cumulated for all children) (KiB): 2260

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.4283
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= 182

runsolver used 0.016997 second user time and 0.050992 second system time

The end

Launcher Data 

Begin job on node49 at 2009-04-19 12:51:27
IDJOB=1628182
IDBENCH=70638
IDSOLVER=583
FILE ID=node49/1628182-1240138287
PBS_JOBID= 9157885
Free space on /tmp= 66416 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-1628182-1240138287/watcher-1628182-1240138287 -o /tmp/evaluation-result-1628182-1240138287/solver-1628182-1240138287 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628182-1240138287.cnf

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

MD5SUM BENCH= 0374a56a4be774bc099f027bd9c7fc30
RANDOM SEED=148473674

node49.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		: 3000.241
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		: 3000.241
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:       1352016 kB
Buffers:         82056 kB
Cached:         543680 kB
SwapCached:          0 kB
Active:         287276 kB
Inactive:       353280 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1352016 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             984 kB
Writeback:           0 kB
Mapped:          24568 kB
Slab:            49128 kB
Committed_AS:   182064 kB
PageTables:       1384 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66412 MiB
End job on node49 at 2009-04-19 12:51:45