Trace number 1522675

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
NCVWr 2009-03-22SAT 10.4484 10.4512

General information on the benchmark

NameRANDOM/LARGE/3SAT/UNKNOWN/2000/
unif-k3-r4.2-v2000-c8400-S1582955175-042.cnf
MD5SUM7696351997fcc9a0c11830645b719732
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.493924
Satisfiable
(Un)Satisfiability was proved
Number of variables2000
Number of clauses8400
Sum of the clauses size25200
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 38400
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

10.39/10.45	c try 1 flip j 3836835
10.39/10.45	c A solution is found
10.39/10.45	s SATISFIABLE
10.39/10.45	v 1 2 -3 -4 5 6 -7 -8 9 10 -11 -12 13 14 15 -16 -17 -18 19 20 21 -22 23 24 25 26 27 28 -29 30 31 32 -33 -34 -35 36 37 38 39 -40 41 42 43 -44 45 -46 -47 -48 -49 -50 51 52 -53 54 55 56 57 58 59 -60 -61 -62 -63 -64 65 -66 67 -68 69 -70 71 -72 73 -74 -75 76 -77 -78 79 -80 -81 -82 83 84 85 -86 -87 -88 89 -90 -91 92 -93 -94 95 96 97 98 -99 100 -101 102 103 104 -105 106 -107 108 109 110 -111 -112 -113 -114 -115 -116 -117 118 119 120 121 122 -123 -124 -125 -126 -127 128 129 -130 131 -132 133 134 -135 -136 137 -138 -139 -140 141 142 143 144 145 146 147 -148 -149 -150 -151 152 -153 -154 155 -156 -157 -158 159 -160 -161 -162 -163 164 -165 -166 -167 168 -169 170 -171 -172 173 174 175 -176 -177 178 -179 180 -181 182 -183 -184 185 -186 -187 -188 189 -190 -191 192 193 -194 -195 196 -197 198 199 -200 201 -202 203 204 -205 206 -207 208 -209 210 211 212 -213 214 -215 -216 217 218 219 -220 -221 222 223 -224 225 226 -227 -228 -229 230 231 232 -233 234 235 236 237 -238 239 -240 -241 242 -243 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10.39/10.45	v 0 
10.39/10.45	c Done (mycputime is 10.420 seconds)

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1522675-1238388382/watcher-1522675-1238388382 -o /tmp/evaluation-result-1522675-1238388382/solver-1522675-1238388382 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1522675-1238388382.cnf 393195611 

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: 1.77 1.81 1.44 3/70 31941
/proc/meminfo: memFree=1786920/2055920 swapFree=4173176/4192956
[pid=31941] ppid=31939 vsize=411884 CPUtime=0
/proc/31941/stat : 31941 (NCVWr) R 31939 31941 31656 0 -1 4194304 122 0 0 0 0 0 0 0 18 0 1 0 1111501511 421769216 107 1992294400 134512640 135113558 4294956208 18446744073709551615 134619510 0 0 4096 0 0 0 0 17 1 0 0
/proc/31941/statm: 102971 107 55 146 0 101846 0

[startup+0.0651801 s]
/proc/loadavg: 1.77 1.81 1.44 3/70 31941
/proc/meminfo: memFree=1786920/2055920 swapFree=4173176/4192956
[pid=31941] ppid=31939 vsize=416708 CPUtime=0.06
/proc/31941/stat : 31941 (NCVWr) R 31939 31941 31656 0 -1 4194304 472 0 0 0 6 0 0 0 18 0 1 0 1111501511 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134572408 0 0 4096 0 0 0 0 17 1 0 0
/proc/31941/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 416708

[startup+0.101183 s]
/proc/loadavg: 1.77 1.81 1.44 3/70 31941
/proc/meminfo: memFree=1786920/2055920 swapFree=4173176/4192956
[pid=31941] ppid=31939 vsize=416708 CPUtime=0.09
/proc/31941/stat : 31941 (NCVWr) R 31939 31941 31656 0 -1 4194304 472 0 0 0 9 0 0 0 18 0 1 0 1111501511 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531865 0 0 4096 0 0 0 0 17 1 0 0
/proc/31941/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 416708

[startup+0.301202 s]
/proc/loadavg: 1.77 1.81 1.44 3/70 31941
/proc/meminfo: memFree=1786920/2055920 swapFree=4173176/4192956
[pid=31941] ppid=31939 vsize=416708 CPUtime=0.29
/proc/31941/stat : 31941 (NCVWr) R 31939 31941 31656 0 -1 4194304 472 0 0 0 29 0 0 0 19 0 1 0 1111501511 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134534202 0 0 4096 0 0 0 0 17 1 0 0
/proc/31941/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 416708

[startup+0.701242 s]
/proc/loadavg: 1.77 1.81 1.44 3/70 31941
/proc/meminfo: memFree=1786920/2055920 swapFree=4173176/4192956
[pid=31941] ppid=31939 vsize=416708 CPUtime=0.69
/proc/31941/stat : 31941 (NCVWr) R 31939 31941 31656 0 -1 4194304 472 0 0 0 69 0 0 0 23 0 1 0 1111501511 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531412 0 0 4096 0 0 0 0 17 1 0 0
/proc/31941/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 416708

[startup+1.50132 s]
/proc/loadavg: 1.77 1.81 1.44 2/71 31942
/proc/meminfo: memFree=1785056/2055920 swapFree=4173176/4192956
[pid=31941] ppid=31939 vsize=416708 CPUtime=1.49
/proc/31941/stat : 31941 (NCVWr) R 31939 31941 31656 0 -1 4194304 472 0 0 0 149 0 0 0 25 0 1 0 1111501511 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134533476 0 0 4096 0 0 0 0 17 1 0 0
/proc/31941/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 416708

[startup+3.10148 s]
/proc/loadavg: 1.71 1.79 1.44 2/71 31942
/proc/meminfo: memFree=1784992/2055920 swapFree=4173176/4192956
[pid=31941] ppid=31939 vsize=416708 CPUtime=3.09
/proc/31941/stat : 31941 (NCVWr) R 31939 31941 31656 0 -1 4194304 472 0 0 0 309 0 0 0 25 0 1 0 1111501511 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531839 0 0 4096 0 0 0 0 17 1 0 0
/proc/31941/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 416708

[startup+6.30179 s]
/proc/loadavg: 1.71 1.79 1.44 2/71 31942
/proc/meminfo: memFree=1784928/2055920 swapFree=4173176/4192956
[pid=31941] ppid=31939 vsize=416708 CPUtime=6.29
/proc/31941/stat : 31941 (NCVWr) R 31939 31941 31656 0 -1 4194304 472 0 0 0 629 0 0 0 25 0 1 0 1111501511 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134533633 0 0 4096 0 0 0 0 17 1 0 0
/proc/31941/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 416708

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

[startup+7.90195 s]
/proc/loadavg: 1.65 1.78 1.44 2/71 31942
/proc/meminfo: memFree=1784928/2055920 swapFree=4173176/4192956
[pid=31941] ppid=31939 vsize=416708 CPUtime=7.89
/proc/31941/stat : 31941 (NCVWr) R 31939 31941 31656 0 -1 4194304 472 0 0 0 789 0 0 0 25 0 1 0 1111501511 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531839 0 0 4096 0 0 0 0 17 1 0 0
/proc/31941/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 416708

[startup+9.50111 s]
/proc/loadavg: 1.65 1.78 1.44 2/71 31942
/proc/meminfo: memFree=1784928/2055920 swapFree=4173176/4192956
[pid=31941] ppid=31939 vsize=416708 CPUtime=9.49
/proc/31941/stat : 31941 (NCVWr) R 31939 31941 31656 0 -1 4194304 472 0 0 0 949 0 0 0 25 0 1 0 1111501511 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531934 0 0 4096 0 0 0 0 17 1 0 0
/proc/31941/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 416708

[startup+9.90615 s]
/proc/loadavg: 1.65 1.78 1.44 2/71 31942
/proc/meminfo: memFree=1784928/2055920 swapFree=4173176/4192956
[pid=31941] ppid=31939 vsize=416708 CPUtime=9.9
/proc/31941/stat : 31941 (NCVWr) R 31939 31941 31656 0 -1 4194304 472 0 0 0 990 0 0 0 25 0 1 0 1111501511 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134533985 0 0 4096 0 0 0 0 17 1 0 0
/proc/31941/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 9.9
Current children cumulated vsize (KiB) 416708

[startup+10.3022 s]
/proc/loadavg: 1.65 1.78 1.44 2/71 31942
/proc/meminfo: memFree=1784928/2055920 swapFree=4173176/4192956
[pid=31941] ppid=31939 vsize=416708 CPUtime=10.29
/proc/31941/stat : 31941 (NCVWr) R 31939 31941 31656 0 -1 4194304 472 0 0 0 1029 0 0 0 25 0 1 0 1111501511 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134520831 0 0 4096 0 0 0 0 17 1 0 0
/proc/31941/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 10.29
Current children cumulated vsize (KiB) 416708

[startup+10.4022 s]
/proc/loadavg: 1.65 1.78 1.44 2/71 31942
/proc/meminfo: memFree=1784928/2055920 swapFree=4173176/4192956
[pid=31941] ppid=31939 vsize=416708 CPUtime=10.39
/proc/31941/stat : 31941 (NCVWr) R 31939 31941 31656 0 -1 4194304 472 0 0 0 1039 0 0 0 25 0 1 0 1111501511 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531127 0 0 4096 0 0 0 0 17 1 0 0
/proc/31941/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 10.39
Current children cumulated vsize (KiB) 416708

Child status: 10
Real time (s): 10.4512
CPU time (s): 10.4484
CPU user time (s): 10.4424
CPU system time (s): 0.005999
CPU usage (%): 99.9733
Max. virtual memory (cumulated for all children) (KiB): 416708

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.4424
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= 487
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= 21

runsolver used 0.011998 second user time and 0.032994 second system time

The end

Launcher Data 

Begin job on node36 at 2009-03-30 06:46:22
IDJOB=1522675
IDBENCH=70289
IDSOLVER=531
FILE ID=node36/1522675-1238388382
PBS_JOBID= 9061310
Free space on /tmp= 66412 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/RANDOM/LARGE/3SAT/UNKNOWN/2000/unif-k3-r4.2-v2000-c8400-S1582955175-042.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1522675-1238388382/watcher-1522675-1238388382 -o /tmp/evaluation-result-1522675-1238388382/solver-1522675-1238388382 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1522675-1238388382.cnf 393195611

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

MD5SUM BENCH= 7696351997fcc9a0c11830645b719732
RANDOM SEED=393195611

node36.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		: 3000.214
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		: 3000.214
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:       1787400 kB
Buffers:         39388 kB
Cached:         145476 kB
SwapCached:       9072 kB
Active:          41520 kB
Inactive:       153852 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1787400 kB
SwapTotal:     4192956 kB
SwapFree:      4173176 kB
Dirty:            4896 kB
Writeback:           0 kB
Mapped:          16252 kB
Slab:            58560 kB
Committed_AS:  2948280 kB
PageTables:       1876 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= 66408 MiB
End job on node36 at 2009-03-30 06:46:33