Trace number 459376

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
PBS4_v2 2007-03-23UNSAT 12.881 12.8971

General information on the benchmark

Namenormalized-PB07/PURE-SAT/SAT07/crafted/Medium/contest05/sabharwal/
unsat-logistics-rotate-09t5.sat05-1139.reshuffled-07.opb
MD5SUMe5d3d270839c9e1755834e8941ccfd6e
Bench CategoryPURE-SAT (instances containing only clauses)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark12.881
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables4336
Total number of constraints214585
Number of constraints which are clauses214585
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint11
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 9
Number of bits of the biggest number in a constraint 4
Biggest sum of numbers in a constraint 20
Number of bits of the biggest sum of numbers5
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/459376-1178653566/instance-459376-1178653566.opb ......
12.68/12.79	c done parsing opb.
12.68/12.79	s UNSATISFIABLE
12.68/12.79	c Total Run Time					11.2163

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/459376-1178653566/instance-459376-1178653566.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node5/watcher-459376-1178653566 -o ROOT/results/node5/solver-459376-1178653566 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/459376-1178653566/instance-459376-1178653566.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 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: 0.84 0.94 0.98 3/77 28602
/proc/meminfo: memFree=1673152/2055920 swapFree=4150040/4192956
[pid=28602] ppid=28600 vsize=1876 CPUtime=0
/proc/28602/stat : 28602 (PBS4_SAT07v2) R 28600 28602 28054 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 341394377 1921024 262 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134798102 0 0 4096 16384 0 0 0 17 0 0 0
/proc/28602/statm: 469 262 86 219 0 246 0

[startup+0.099202 s]
/proc/loadavg: 0.84 0.94 0.98 3/77 28602
/proc/meminfo: memFree=1673152/2055920 swapFree=4150040/4192956
[pid=28602] ppid=28600 vsize=2860 CPUtime=0.09
/proc/28602/stat : 28602 (PBS4_SAT07v2) R 28600 28602 28054 0 -1 4194304 560 0 0 0 9 0 0 0 18 0 1 0 341394377 2928640 493 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134786721 0 0 4096 16384 0 0 0 17 0 0 0
/proc/28602/statm: 715 493 86 219 0 492 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2860

[startup+0.102202 s]
/proc/loadavg: 0.84 0.94 0.98 3/77 28602
/proc/meminfo: memFree=1673152/2055920 swapFree=4150040/4192956
[pid=28602] ppid=28600 vsize=2860 CPUtime=0.1
/proc/28602/stat : 28602 (PBS4_SAT07v2) R 28600 28602 28054 0 -1 4194304 568 0 0 0 10 0 0 0 18 0 1 0 341394377 2928640 501 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134594427 0 0 4096 16384 0 0 0 17 0 0 0
/proc/28602/statm: 715 501 86 219 0 492 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2860

[startup+0.302224 s]
/proc/loadavg: 0.84 0.94 0.98 3/77 28602
/proc/meminfo: memFree=1673152/2055920 swapFree=4150040/4192956
[pid=28602] ppid=28600 vsize=5088 CPUtime=0.3
/proc/28602/stat : 28602 (PBS4_SAT07v2) R 28600 28602 28054 0 -1 4194304 1307 0 0 0 30 0 0 0 19 0 1 0 341394377 5210112 950 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134530468 0 0 4096 16384 0 0 0 17 0 0 0
/proc/28602/statm: 1272 950 86 219 0 1049 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 5088

[startup+0.701269 s]
/proc/loadavg: 0.84 0.94 0.98 3/77 28602
/proc/meminfo: memFree=1673152/2055920 swapFree=4150040/4192956
[pid=28602] ppid=28600 vsize=10752 CPUtime=0.69
/proc/28602/stat : 28602 (PBS4_SAT07v2) R 28600 28602 28054 0 -1 4194304 2591 0 0 0 69 0 0 0 24 0 1 0 341394377 11010048 1849 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134518650 0 0 4096 16384 0 0 0 17 0 0 0
/proc/28602/statm: 2688 1849 86 219 0 2465 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10752

[startup+1.50136 s]
/proc/loadavg: 0.84 0.94 0.98 2/78 28603
/proc/meminfo: memFree=1663672/2055920 swapFree=4150040/4192956
[pid=28602] ppid=28600 vsize=19240 CPUtime=1.49
/proc/28602/stat : 28602 (PBS4_SAT07v2) R 28600 28602 28054 0 -1 4194304 5008 0 0 0 147 2 0 0 25 0 1 0 341394377 19701760 3497 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134530468 0 0 4096 16384 0 0 0 17 0 0 0
/proc/28602/statm: 4810 3497 86 219 0 4587 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 19240

[startup+3.10154 s]
/proc/loadavg: 0.84 0.94 0.98 2/78 28603
/proc/meminfo: memFree=1656376/2055920 swapFree=4150040/4192956
[pid=28602] ppid=28600 vsize=21228 CPUtime=3.09
/proc/28602/stat : 28602 (PBS4_SAT07v2) R 28600 28602 28054 0 -1 4194304 6070 0 0 0 306 3 0 0 25 0 1 0 341394377 21737472 4457 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134544869 0 0 4096 16384 0 0 0 17 0 0 0
/proc/28602/statm: 5307 4457 90 219 0 5084 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 21228

[startup+6.3019 s]
/proc/loadavg: 0.85 0.94 0.98 2/78 28603
/proc/meminfo: memFree=1653432/2055920 swapFree=4150040/4192956
[pid=28602] ppid=28600 vsize=29420 CPUtime=6.29
/proc/28602/stat : 28602 (PBS4_SAT07v2) R 28600 28602 28054 0 -1 4194304 6700 0 0 0 623 6 0 0 25 0 1 0 341394377 30126080 5087 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 0 0 0
/proc/28602/statm: 7355 5087 90 219 0 7132 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 29420

[startup+12.7016 s]
/proc/loadavg: 0.87 0.94 0.98 2/78 28603
/proc/meminfo: memFree=1649784/2055920 swapFree=4150040/4192956
[pid=28602] ppid=28600 vsize=31112 CPUtime=12.68
/proc/28602/stat : 28602 (PBS4_SAT07v2) R 28600 28602 28054 0 -1 4194304 7570 0 0 0 1260 8 0 0 25 0 1 0 341394377 31858688 5957 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134544685 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28602/statm: 7778 5957 90 219 0 7555 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 31112

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

[startup+12.8025 s]
/proc/loadavg: 0.87 0.94 0.98 2/78 28603
/proc/meminfo: memFree=1649784/2055920 swapFree=4150040/4192956
[pid=28602] ppid=28600 vsize=31272 CPUtime=12.77
/proc/28602/stat : 28602 (PBS4_SAT07v2) R 28600 28602 28054 0 -1 4195840 7604 0 0 0 1269 8 0 0 25 0 1 0 341394377 32022528 5986 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134514638 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28602/statm: 7818 5986 107 219 0 7595 0
Current children cumulated CPU time (s) 12.77
Current children cumulated vsize (KiB) 31272

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 12.8971
CPU time (s): 12.881
CPU user time (s): 12.6981
CPU system time (s): 0.182972
CPU usage (%): 99.8757
Max. virtual memory (cumulated for all children) (KiB): 31272

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.6981
system time used= 0.182972
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8359
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= 8
involuntary context switches= 292

runsolver used 0.013997 second user time and 0.036994 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Tue May  8 19:46:07 UTC 2007

IDJOB= 459376
IDBENCH= 47837
IDSOLVER= 200
FILE ID= node5/459376-1178653566

PBS_JOBID= 5218002

Free space on /tmp= 66557 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/PURE-SAT/SAT07/crafted/Medium/contest05/sabharwal/unsat-logistics-rotate-09t5.sat05-1139.reshuffled-07.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/459376-1178653566/instance-459376-1178653566.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node5/convwatcher-459376-1178653566 -o ROOT/results/node5/conversion-459376-1178653566 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/459376-1178653566/instance-459376-1178653566.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-459376-1178653566 -o ROOT/results/node5/solver-459376-1178653566 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/459376-1178653566/instance-459376-1178653566.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  e5d3d270839c9e1755834e8941ccfd6e

RANDOM SEED= 631437428

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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		: 3000.232
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		: 3000.232
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:       1673560 kB
Buffers:         37736 kB
Cached:         272436 kB
SwapCached:      11060 kB
Active:         123288 kB
Inactive:       210412 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1673560 kB
SwapTotal:     4192956 kB
SwapFree:      4150040 kB
Dirty:            7628 kB
Writeback:           0 kB
Mapped:          30404 kB
Slab:            34252 kB
Committed_AS: 13920472 kB
PageTables:       1724 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= 66534 MiB

End job on node5 on Tue May  8 19:46:20 UTC 2007