Trace number 332142

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, and are wall clock time (not CPU 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
picosat 535UNSAT 185.617 185.67

General information on the benchmark

Namecrafted/Medium/contest05/sabharwal/
gt-ordering-unsat-gt-025.sat05-1306.reshuffled-07.cnf
MD5SUM47828b3a4e2ae65de4085316feb1d449
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.754884
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses14125
Sum of the clauses size42600
Maximum clause length24
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2300
Number of clauses of size 313800
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 525

Solver Data (download as text)

185.54/185.66	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node14/watcher-332142-1173465654 -o ROOT/results/node14/solver-332142-1173465654 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/332142-1173465654/picosat /tmp/evaluation/332142-1173465654/instance-332142-1173465654.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): 2400 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: 0.92 0.97 0.88 3/77 23119
/proc/meminfo: memFree=1591304/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=568 CPUtime=0
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 80 0 0 0 0 0 0 0 18 0 1 0 366519818 581632 65 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 142 65 40 102 0 37 0

[startup+0.039947 s]
/proc/loadavg: 0.92 0.97 0.88 3/77 23119
/proc/meminfo: memFree=1591304/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=700 CPUtime=0.03
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 118 0 0 0 1 2 0 0 18 0 1 0 366519818 716800 103 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 175 103 40 102 0 70 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 700

[startup+0.101946 s]
/proc/loadavg: 0.92 0.97 0.88 3/77 23119
/proc/meminfo: memFree=1591304/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=988 CPUtime=0.09
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 178 0 0 0 4 5 0 0 18 0 1 0 366519818 1011712 163 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 247 163 40 102 0 142 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 988

[startup+0.301965 s]
/proc/loadavg: 0.92 0.97 0.88 3/77 23119
/proc/meminfo: memFree=1591304/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=1656 CPUtime=0.29
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 335 0 0 0 21 8 0 0 19 0 1 0 366519818 1695744 318 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525785 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 414 318 48 102 0 309 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1656

[startup+0.702002 s]
/proc/loadavg: 0.92 0.97 0.88 3/77 23119
/proc/meminfo: memFree=1591304/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=1788 CPUtime=0.69
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 370 0 0 0 61 8 0 0 23 0 1 0 366519818 1830912 353 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 447 353 48 102 0 342 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1788

[startup+1.50108 s]
/proc/loadavg: 0.92 0.97 0.88 2/78 23120
/proc/meminfo: memFree=1589760/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=2052 CPUtime=1.49
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 447 0 0 0 141 8 0 0 25 0 1 0 366519818 2101248 430 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 513 430 48 102 0 408 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2052

[startup+3.10123 s]
/proc/loadavg: 0.92 0.97 0.88 2/78 23120
/proc/meminfo: memFree=1589312/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=2316 CPUtime=3.09
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 518 0 0 0 301 8 0 0 25 0 1 0 366519818 2371584 501 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134529876 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 579 501 48 102 0 474 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2316

[startup+6.30153 s]
/proc/loadavg: 0.93 0.97 0.88 2/78 23120
/proc/meminfo: memFree=1588800/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=2852 CPUtime=6.29
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 652 0 0 0 621 8 0 0 25 0 1 0 366519818 2920448 635 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525814 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 713 635 48 102 0 608 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2852

[startup+12.7021 s]
/proc/loadavg: 0.93 0.97 0.88 2/78 23120
/proc/meminfo: memFree=1588544/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=3116 CPUtime=12.69
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 725 0 0 0 1261 8 0 0 25 0 1 0 366519818 3190784 708 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134524040 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 779 708 48 102 0 674 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3116

[startup+25.5013 s]
/proc/loadavg: 0.95 0.97 0.88 2/78 23120
/proc/meminfo: memFree=1586944/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=4792 CPUtime=25.48
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 1098 0 0 0 2540 8 0 0 25 0 1 0 366519818 4907008 1081 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525554 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 1198 1081 48 102 0 1093 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 4792

[startup+51.1017 s]
/proc/loadavg: 0.96 0.97 0.88 2/78 23120
/proc/meminfo: memFree=1586240/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=5368 CPUtime=51.07
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 1268 0 0 0 5099 8 0 0 25 0 1 0 366519818 5496832 1251 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525820 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 1342 1251 48 102 0 1237 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 5368

[startup+102.306 s]
/proc/loadavg: 0.98 0.97 0.89 2/78 23120
/proc/meminfo: memFree=1585728/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=5744 CPUtime=102.27
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 1406 0 0 0 10218 9 0 0 25 0 1 0 366519818 5881856 1359 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 1436 1359 48 102 0 1331 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 5744

[startup+162.301 s]
/proc/loadavg: 0.99 0.97 0.89 2/78 23122
/proc/meminfo: memFree=1584320/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=6888 CPUtime=162.24
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 2084 0 0 0 16215 9 0 0 25 0 1 0 366519818 7053312 1625 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134549433 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 1722 1625 48 102 0 1617 0
Current children cumulated CPU time (s) 162.24
Current children cumulated vsize (KiB) 6888

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

[startup+166.302 s]
/proc/loadavg: 0.99 0.97 0.89 2/78 23122
/proc/meminfo: memFree=1584320/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=7016 CPUtime=166.24
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 2159 0 0 0 16615 9 0 0 25 0 1 0 366519818 7184384 1627 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 1754 1627 48 102 0 1649 0
Current children cumulated CPU time (s) 166.24
Current children cumulated vsize (KiB) 7016

[startup+179.102 s]
/proc/loadavg: 0.99 0.97 0.89 2/78 23122
/proc/meminfo: memFree=1583616/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=7724 CPUtime=179.04
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 2416 0 0 0 17895 9 0 0 25 0 1 0 366519818 7909376 1811 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134529758 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 1931 1811 48 102 0 1826 0
Current children cumulated CPU time (s) 179.04
Current children cumulated vsize (KiB) 7724

[startup+182.301 s]
/proc/loadavg: 0.99 0.97 0.89 2/78 23122
/proc/meminfo: memFree=1583616/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=7724 CPUtime=182.23
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 2416 0 0 0 18214 9 0 0 25 0 1 0 366519818 7909376 1811 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134529768 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 1931 1811 48 102 0 1826 0
Current children cumulated CPU time (s) 182.23
Current children cumulated vsize (KiB) 7724

[startup+183.902 s]
/proc/loadavg: 0.99 0.97 0.89 2/78 23122
/proc/meminfo: memFree=1583616/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=7724 CPUtime=183.84
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 2416 0 0 0 18375 9 0 0 25 0 1 0 366519818 7909376 1811 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 1931 1811 48 102 0 1826 0
Current children cumulated CPU time (s) 183.84
Current children cumulated vsize (KiB) 7724

[startup+184.701 s]
/proc/loadavg: 0.99 0.97 0.89 2/78 23122
/proc/meminfo: memFree=1583616/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=7724 CPUtime=184.64
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 2416 0 0 0 18455 9 0 0 25 0 1 0 366519818 7909376 1811 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525788 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 1931 1811 48 102 0 1826 0
Current children cumulated CPU time (s) 184.64
Current children cumulated vsize (KiB) 7724

[startup+185.101 s]
/proc/loadavg: 0.99 0.97 0.89 2/78 23122
/proc/meminfo: memFree=1583616/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=7724 CPUtime=185.03
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 2416 0 0 0 18494 9 0 0 25 0 1 0 366519818 7909376 1811 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134529778 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 1931 1811 48 102 0 1826 0
Current children cumulated CPU time (s) 185.03
Current children cumulated vsize (KiB) 7724

[startup+185.501 s]
/proc/loadavg: 0.99 0.97 0.89 2/78 23122
/proc/meminfo: memFree=1583616/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=7724 CPUtime=185.44
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 2416 0 0 0 18534 10 0 0 25 0 1 0 366519818 7909376 1811 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 1931 1811 48 102 0 1826 0
Current children cumulated CPU time (s) 185.44
Current children cumulated vsize (KiB) 7724

[startup+185.601 s]
/proc/loadavg: 0.99 0.97 0.89 2/78 23122
/proc/meminfo: memFree=1583616/2055920 swapFree=4146600/4192956
[pid=23119] ppid=23117 vsize=7724 CPUtime=185.54
/proc/23119/stat : 23119 (picosat) R 23117 23119 22763 0 -1 4194304 2416 0 0 0 18544 10 0 0 25 0 1 0 366519818 7909376 1811 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525921 0 0 4096 0 0 0 0 17 1 0 0
/proc/23119/statm: 1931 1811 48 102 0 1826 0
Current children cumulated CPU time (s) 185.54
Current children cumulated vsize (KiB) 7724

Child status: 20
Real time (s): 185.67
CPU time (s): 185.617
CPU user time (s): 185.515
CPU system time (s): 0.101984
CPU usage (%): 99.9713
Max. virtual memory (cumulated for all children) (KiB): 7880

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 185.515
system time used= 0.101984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2418
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= 7
involuntary context switches= 352

runsolver used 0.221966 second user time and 0.45493 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Fri Mar  9 18:40:54 UTC 2007

IDJOB= 332142
IDBENCH= 24573
IDSOLVER= 106
FILE ID= node14/332142-1173465654

PBS_JOBID= 4101063

Free space on /tmp= 66547 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/sabharwal/gt-ordering-unsat-gt-025.sat05-1306.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/332142-1173465654/picosat /tmp/evaluation/332142-1173465654/instance-332142-1173465654.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-332142-1173465654 -o ROOT/results/node14/solver-332142-1173465654 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/332142-1173465654/picosat /tmp/evaluation/332142-1173465654/instance-332142-1173465654.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  47828b3a4e2ae65de4085316feb1d449

RANDOM SEED= 668157238

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node14.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.216
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		: 3000.216
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:       1591712 kB
Buffers:         48584 kB
Cached:         329004 kB
SwapCached:      14908 kB
Active:         172708 kB
Inactive:       227768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1591712 kB
SwapTotal:     4192956 kB
SwapFree:      4146600 kB
Dirty:             756 kB
Writeback:           0 kB
Mapped:          29564 kB
Slab:            49296 kB
Committed_AS:  1216340 kB
PageTables:       1736 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= 66547 MiB

End job on node14 on Fri Mar  9 18:44:00 UTC 2007