Trace number 3156859

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
shortsattime2011 2011-03-02SAT 4.86126 4.86983

General information on the benchmark

Namerandom/large/
unif-k3-r4.2-v2500-c10500-S882087907-088-UNKNOWN.cnf
MD5SUM3cf1ca6aaef3b8ffa068d087f2b6934e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.16467
Satisfiable
(Un)Satisfiability was proved
Number of variables2500
Number of clauses10500
Sum of the clauses size31500
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 310500
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data

4.79/4.86	c 0 clauses are redundant and removed
4.79/4.86	c 0 vars are fixed and 0 clauses are removed after unit propagation
4.79/4.86	c 0 vars are fixed and 0 clauses are removed after lookahead
4.79/4.86	c initial seed is 2073086122
4.79/4.86	c try=1 flip j=8628845 walk=7852173 seed 2073086139
4.79/4.86	c A solution is found
4.79/4.86	s SATISFIABLE
4.79/4.86	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 -244 -245 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4.79/4.86	v 0 
4.79/4.86	c Done (mycputime is 4 seconds)

Verifier Data

OK

Watcher Data

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3156859-1301678578/watcher-3156859-1301678578 -o /tmp/evaluation-result-3156859-1301678578/solver-3156859-1301678578 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3156859-1301678578.cnf 2073079335 

running on 2 cores: 4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 4.02 3.13 1.53 4/187 7321
/proc/meminfo: memFree=21111340/32951132 swapFree=67111528/67111528
[pid=7321] ppid=7319 vsize=11760 CPUtime=0 cores=4,6
/proc/7321/stat : 7321 (runsolver) S 7319 7321 7195 0 -1 4202560 40 0 0 0 0 0 0 0 24 0 1 0 279456458 12042240 48 33554432000 4194304 5392636 140734205481040 18446744073709551615 4838247 0 2147483391 4096 24578 18446744071699870519 0 0 17 4 0 0 0
/proc/7321/statm: 2940 48 30 293 0 2644 0

[startup+0.0375359 s]
/proc/loadavg: 4.02 3.13 1.53 4/187 7321
/proc/meminfo: memFree=21111340/32951132 swapFree=67111528/67111528
[pid=7321] ppid=7319 vsize=1187168 CPUtime=0.02 cores=4,6
/proc/7321/stat : 7321 (shortsattime201) R 7319 7321 7195 0 -1 4202496 902 0 0 0 2 0 0 0 25 0 1 0 279456458 1215660032 843 33554432000 4194304 4230460 140734600362096 18446744073709551615 4217925 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/7321/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1187168

[startup+0.100541 s]
/proc/loadavg: 4.02 3.13 1.53 4/187 7321
/proc/meminfo: memFree=21111340/32951132 swapFree=67111528/67111528
[pid=7321] ppid=7319 vsize=1187168 CPUtime=0.09 cores=4,6
/proc/7321/stat : 7321 (shortsattime201) R 7319 7321 7195 0 -1 4202496 902 0 0 0 9 0 0 0 25 0 1 0 279456458 1215660032 843 33554432000 4194304 4230460 140734600362096 18446744073709551615 4223247 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/7321/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1187168

[startup+0.366759 s]
/proc/loadavg: 4.02 3.13 1.53 4/187 7321
/proc/meminfo: memFree=21111340/32951132 swapFree=67111528/67111528
[pid=7321] ppid=7319 vsize=1187168 CPUtime=0.37 cores=4,6
/proc/7321/stat : 7321 (shortsattime201) R 7319 7321 7195 0 -1 4202496 902 0 0 0 37 0 0 0 25 0 1 0 279456458 1215660032 843 33554432000 4194304 4230460 140734600362096 18446744073709551615 4199918 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/7321/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 0.37
Current children cumulated vsize (KiB) 1187168

[startup+0.781299 s]
/proc/loadavg: 4.02 3.13 1.53 4/187 7321
/proc/meminfo: memFree=21111340/32951132 swapFree=67111528/67111528
[pid=7321] ppid=7319 vsize=1187168 CPUtime=0.78 cores=4,6
/proc/7321/stat : 7321 (shortsattime201) R 7319 7321 7195 0 -1 4202496 902 0 0 0 78 0 0 0 25 0 1 0 279456458 1215660032 843 33554432000 4194304 4230460 140734600362096 18446744073709551615 4200296 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/7321/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 0.78
Current children cumulated vsize (KiB) 1187168

[startup+2.60008 s]
/proc/loadavg: 4.02 3.13 1.53 5/188 7322
/proc/meminfo: memFree=21107860/32951132 swapFree=67111528/67111528
[pid=7321] ppid=7319 vsize=1187168 CPUtime=2.59 cores=4,6
/proc/7321/stat : 7321 (shortsattime201) R 7319 7321 7195 0 -1 4202496 902 0 0 0 259 0 0 0 25 0 1 0 279456458 1215660032 843 33554432000 4194304 4230460 140734600362096 18446744073709551615 4221562 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/7321/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 2.59
Current children cumulated vsize (KiB) 1187168

[startup+3.10099 s]
/proc/loadavg: 4.02 3.13 1.53 5/188 7322
/proc/meminfo: memFree=21107860/32951132 swapFree=67111528/67111528
[pid=7321] ppid=7319 vsize=1187168 CPUtime=3.09 cores=4,6
/proc/7321/stat : 7321 (shortsattime201) R 7319 7321 7195 0 -1 4202496 902 0 0 0 309 0 0 0 25 0 1 0 279456458 1215660032 843 33554432000 4194304 4230460 140734600362096 18446744073709551615 4221552 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/7321/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1187168

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

[startup+3.8009 s]
/proc/loadavg: 4.02 3.13 1.53 5/188 7322
/proc/meminfo: memFree=21107664/32951132 swapFree=67111528/67111528
[pid=7321] ppid=7319 vsize=1187168 CPUtime=3.79 cores=4,6
/proc/7321/stat : 7321 (shortsattime201) R 7319 7321 7195 0 -1 4202496 902 0 0 0 379 0 0 0 25 0 1 0 279456458 1215660032 843 33554432000 4194304 4230460 140734600362096 18446744073709551615 4221276 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/7321/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 3.79
Current children cumulated vsize (KiB) 1187168

[startup+4.60076 s]
/proc/loadavg: 4.02 3.13 1.53 5/188 7322
/proc/meminfo: memFree=21107664/32951132 swapFree=67111528/67111528
[pid=7321] ppid=7319 vsize=1187168 CPUtime=4.59 cores=4,6
/proc/7321/stat : 7321 (shortsattime201) R 7319 7321 7195 0 -1 4202496 902 0 0 0 459 0 0 0 25 0 1 0 279456458 1215660032 843 33554432000 4194304 4230460 140734600362096 18446744073709551615 4219784 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/7321/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 4.59
Current children cumulated vsize (KiB) 1187168

[startup+4.80672 s]
/proc/loadavg: 4.02 3.14 1.54 5/188 7322
/proc/meminfo: memFree=21107788/32951132 swapFree=67111528/67111528
[pid=7321] ppid=7319 vsize=1187168 CPUtime=4.79 cores=4,6
/proc/7321/stat : 7321 (shortsattime201) R 7319 7321 7195 0 -1 4202496 902 0 0 0 479 0 0 0 25 0 1 0 279456458 1215660032 843 33554432000 4194304 4230460 140734600362096 18446744073709551615 4219829 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/7321/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 4.79
Current children cumulated vsize (KiB) 1187168

Child status: 10
Real time (s): 4.86983
CPU time (s): 4.86126
CPU user time (s): 4.85926
CPU system time (s): 0.001999
CPU usage (%): 99.824
Max. virtual memory (cumulated for all children) (KiB): 1187168

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.85926
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= 908
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= 13

runsolver used 0.26096 second user time and 0.497924 second system time

The end

Launcher Data

Begin job on node128 at 2011-04-01 19:22:58
IDJOB=3156859
IDBENCH=82574
IDSOLVER=1566
FILE ID=node128/3156859-1301678578
RUNJOBID= node128-1301678137-7215
PBS_JOBID= 12840569
Free space on /tmp= 70964 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/large/unif-k3-r4.2-v2500-c10500-S882087907-088-UNKNOWN.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3156859-1301678578/watcher-3156859-1301678578 -o /tmp/evaluation-result-3156859-1301678578/solver-3156859-1301678578 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3156859-1301678578.cnf 2073079335

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 3cf1ca6aaef3b8ffa068d087f2b6934e
RANDOM SEED=2073079335

node128.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.70
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5434.49
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      21111504 kB
Buffers:        332080 kB
Cached:       11096160 kB
SwapCached:          0 kB
Active:        7992260 kB
Inactive:      3571968 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21111504 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7940 kB
Writeback:           0 kB
AnonPages:      135812 kB
Mapped:          15612 kB
Slab:           211104 kB
PageTables:       5788 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:  3840616 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 70956 MiB
End job on node128 at 2011-04-01 19:23:03