Trace number 1522821

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
Hybrid2 2009-03-22SAT 4.5923 4.59421

General information on the benchmark

NameRANDOM/LARGE/3SAT/UNKNOWN/4000/
unif-k3-r4.2-v4000-c16800-S1933199449-033.cnf
MD5SUMb76c43c3a4ebb25b4fe350a62b537043
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.683895
Satisfiable
(Un)Satisfiability was proved
Number of variables4000
Number of clauses16800
Sum of the clauses size50400
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 316800
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data

4.49/4.59	c try 1 flip j 2052652
4.49/4.59	c A solution is found
4.49/4.59	s SATISFIABLE
4.49/4.59	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 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4.49/4.59	v 0 
4.49/4.59	c Done (mycputime is 4.540 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-1522821-1238400823/watcher-1522821-1238400823 -o /tmp/evaluation-result-1522821-1238400823/solver-1522821-1238400823 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1522821-1238400823.cnf 55966876 

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: 0.91 0.95 0.98 3/64 32574
/proc/meminfo: memFree=1570608/2055920 swapFree=4179868/4192956
[pid=32574] ppid=32572 vsize=450944 CPUtime=0
/proc/32574/stat : 32574 (Hybrid2) R 32572 32574 32503 0 -1 4194304 113 0 0 0 0 0 0 0 18 0 1 0 1112748987 461766656 98 1992294400 134512640 135106774 4294956224 18446744073709551615 134633838 0 0 4096 0 0 0 0 17 1 0 0
/proc/32574/statm: 112736 98 53 145 0 111612 0

[startup+0.0921699 s]
/proc/loadavg: 0.91 0.95 0.98 3/64 32574
/proc/meminfo: memFree=1570608/2055920 swapFree=4179868/4192956
[pid=32574] ppid=32572 vsize=456424 CPUtime=0.08
/proc/32574/stat : 32574 (Hybrid2) R 32572 32574 32503 0 -1 4194304 727 0 0 0 8 0 0 0 18 0 1 0 1112748987 467378176 711 1992294400 134512640 135106774 4294956224 18446744073709551615 134528744 0 0 4096 0 0 0 0 17 1 0 0
/proc/32574/statm: 114106 711 56 145 0 112982 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 456424

[startup+0.10117 s]
/proc/loadavg: 0.91 0.95 0.98 3/64 32574
/proc/meminfo: memFree=1570608/2055920 swapFree=4179868/4192956
[pid=32574] ppid=32572 vsize=456424 CPUtime=0.09
/proc/32574/stat : 32574 (Hybrid2) R 32572 32574 32503 0 -1 4194304 727 0 0 0 9 0 0 0 18 0 1 0 1112748987 467378176 711 1992294400 134512640 135106774 4294956224 18446744073709551615 134528512 0 0 4096 0 0 0 0 17 1 0 0
/proc/32574/statm: 114106 711 56 145 0 112982 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 456424

[startup+0.301207 s]
/proc/loadavg: 0.91 0.95 0.98 3/64 32574
/proc/meminfo: memFree=1570608/2055920 swapFree=4179868/4192956
[pid=32574] ppid=32572 vsize=456424 CPUtime=0.29
/proc/32574/stat : 32574 (Hybrid2) R 32572 32574 32503 0 -1 4194304 727 0 0 0 29 0 0 0 19 0 1 0 1112748987 467378176 711 1992294400 134512640 135106774 4294956224 18446744073709551615 134518446 0 0 4096 0 0 0 0 17 1 0 0
/proc/32574/statm: 114106 711 56 145 0 112982 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 456424

[startup+0.701285 s]
/proc/loadavg: 0.91 0.95 0.98 3/64 32574
/proc/meminfo: memFree=1570608/2055920 swapFree=4179868/4192956
[pid=32574] ppid=32572 vsize=456424 CPUtime=0.69
/proc/32574/stat : 32574 (Hybrid2) R 32572 32574 32503 0 -1 4194304 727 0 0 0 69 0 0 0 22 0 1 0 1112748987 467378176 711 1992294400 134512640 135106774 4294956224 18446744073709551615 134528360 0 0 4096 0 0 0 0 17 1 0 0
/proc/32574/statm: 114106 711 56 145 0 112982 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 456424

[startup+1.50144 s]
/proc/loadavg: 0.91 0.95 0.98 2/65 32575
/proc/meminfo: memFree=1567784/2055920 swapFree=4179868/4192956
[pid=32574] ppid=32572 vsize=456424 CPUtime=1.49
/proc/32574/stat : 32574 (Hybrid2) R 32572 32574 32503 0 -1 4194304 727 0 0 0 149 0 0 0 25 0 1 0 1112748987 467378176 711 1992294400 134512640 135106774 4294956224 18446744073709551615 134527227 0 0 4096 0 0 0 0 17 1 0 0
/proc/32574/statm: 114106 711 56 145 0 112982 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 456424

[startup+3.10174 s]
/proc/loadavg: 0.91 0.95 0.98 2/65 32575
/proc/meminfo: memFree=1567656/2055920 swapFree=4179868/4192956
[pid=32574] ppid=32572 vsize=456424 CPUtime=3.09
/proc/32574/stat : 32574 (Hybrid2) R 32572 32574 32503 0 -1 4194304 727 0 0 0 309 0 0 0 25 0 1 0 1112748987 467378176 711 1992294400 134512640 135106774 4294956224 18446744073709551615 134526846 0 0 4096 0 0 0 0 17 1 0 0
/proc/32574/statm: 114106 711 56 145 0 112982 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 456424

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

[startup+3.9019 s]
/proc/loadavg: 0.91 0.95 0.98 2/65 32575
/proc/meminfo: memFree=1567528/2055920 swapFree=4179868/4192956
[pid=32574] ppid=32572 vsize=456424 CPUtime=3.89
/proc/32574/stat : 32574 (Hybrid2) R 32572 32574 32503 0 -1 4194304 727 0 0 0 389 0 0 0 25 0 1 0 1112748987 467378176 711 1992294400 134512640 135106774 4294956224 18446744073709551615 134566440 0 0 4096 0 0 0 0 17 1 0 0
/proc/32574/statm: 114106 711 56 145 0 112982 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 456424

[startup+4.30197 s]
/proc/loadavg: 0.91 0.95 0.98 2/65 32575
/proc/meminfo: memFree=1567528/2055920 swapFree=4179868/4192956
[pid=32574] ppid=32572 vsize=456424 CPUtime=4.3
/proc/32574/stat : 32574 (Hybrid2) R 32572 32574 32503 0 -1 4194304 727 0 0 0 430 0 0 0 25 0 1 0 1112748987 467378176 711 1992294400 134512640 135106774 4294956224 18446744073709551615 134527285 0 0 4096 0 0 0 0 17 1 0 0
/proc/32574/statm: 114106 711 56 145 0 112982 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 456424

[startup+4.50201 s]
/proc/loadavg: 0.91 0.95 0.98 2/65 32575
/proc/meminfo: memFree=1567528/2055920 swapFree=4179868/4192956
[pid=32574] ppid=32572 vsize=456424 CPUtime=4.49
/proc/32574/stat : 32574 (Hybrid2) R 32572 32574 32503 0 -1 4194304 727 0 0 0 449 0 0 0 25 0 1 0 1112748987 467378176 711 1992294400 134512640 135106774 4294956224 18446744073709551615 134526846 0 0 4096 0 0 0 0 17 1 0 0
/proc/32574/statm: 114106 711 56 145 0 112982 0
Current children cumulated CPU time (s) 4.49
Current children cumulated vsize (KiB) 456424

Child status: 10
Real time (s): 4.59421
CPU time (s): 4.5923
CPU user time (s): 4.5903
CPU system time (s): 0.001999
CPU usage (%): 99.9584
Max. virtual memory (cumulated for all children) (KiB): 456424

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.5903
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 744
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= 6

runsolver used 0.009998 second user time and 0.013997 second system time

The end

Launcher Data

Begin job on node5 at 2009-03-30 10:13:43
IDJOB=1522821
IDBENCH=70338
IDSOLVER=530
FILE ID=node5/1522821-1238400823
PBS_JOBID= 9061442
Free space on /tmp= 66096 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/LARGE/3SAT/UNKNOWN/4000/unif-k3-r4.2-v4000-c16800-S1933199449-033.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1522821-1238400823/watcher-1522821-1238400823 -o /tmp/evaluation-result-1522821-1238400823/solver-1522821-1238400823 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1522821-1238400823.cnf 55966876

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

MD5SUM BENCH= b76c43c3a4ebb25b4fe350a62b537043
RANDOM SEED=55966876

node5.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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1571024 kB
Buffers:         73032 kB
Cached:         310344 kB
SwapCached:       7012 kB
Active:          66616 kB
Inactive:       325260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1571024 kB
SwapTotal:     4192956 kB
SwapFree:      4179868 kB
Dirty:            4868 kB
Writeback:           0 kB
Mapped:          14212 kB
Slab:            78992 kB
Committed_AS:  2824432 kB
PageTables:       1388 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= 66088 MiB
End job on node5 at 2009-03-30 10:13:47