Trace number 212682

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
Mistral 2006-12-04? (MO) 5.20121 5.22031

General information on the benchmark

NamepseudoSeries/mpsReduced/
mps-red-usAbbrv-8-25-70.xml
MD5SUMd3bed14d6a2e2060ab5feab2600cd7e6
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark15.3687
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables20611
Number of constraints3922
Maximum constraint arity61
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3922
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c 
0.01	c Parsing xml file
0.01	c 	domains...............    0
0.01	c 	variables............. 0.43
0.43	c 	predicates............ 0.03
0.46	c 	constraints........... 3.97
4.44	c Allocating memory
4.44	c 
4.44	c time limit = -1
4.44	c heuristic = dom/wdeg
4.44	c restart policy = No restart
4.44	c 
4.44	c Solving
4.44	c

Verifier Data (download as text)

ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node24/watcher-212682-1168222793 -o ROOT/results/node24/solver-212682-1168222793 -C 1800 -M 900 /tmp/evaluation/212682-1168222793/mistral/bin/solver /tmp/evaluation/212682-1168222793/unknown.xml -v 1 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.61 1.90 1.91 3/78 9483
/proc/meminfo: memFree=1812312/2055920 swapFree=4192812/4192956
[pid=9482] ppid=9480 vsize=6792 CPUtime=0
/proc/9482/stat : 9482 (solver) R 9480 9482 7611 0 -1 4194304 421 0 0 0 0 0 0 0 18 0 1 0 170674655 6955008 400 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 2575224 0 0 4096 0 0 0 0 17 1 0 0
/proc/9482/statm: 1698 400 363 92 0 30 0

[startup+0.107492 s]
/proc/loadavg: 1.61 1.90 1.91 3/78 9483
/proc/meminfo: memFree=1812312/2055920 swapFree=4192812/4192956
[pid=9482] ppid=9480 vsize=8132 CPUtime=0.1
/proc/9482/stat : 9482 (solver) R 9480 9482 7611 0 -1 4194304 1078 0 0 0 10 0 0 0 18 0 1 0 170674655 8327168 1046 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 3040891 0 0 4096 0 0 0 0 17 1 0 0
/proc/9482/statm: 2033 1047 688 92 0 377 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 8132

[startup+0.515537 s]
/proc/loadavg: 1.61 1.90 1.91 3/78 9483
/proc/meminfo: memFree=1812312/2055920 swapFree=4192812/4192956
[pid=9482] ppid=9480 vsize=13516 CPUtime=0.5
/proc/9482/stat : 9482 (solver) R 9480 9482 7611 0 -1 4194304 2451 0 0 0 50 0 0 0 22 0 1 0 170674655 13840384 2419 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 3040891 0 0 4096 0 0 0 0 17 1 0 0
/proc/9482/statm: 3379 2419 711 92 0 1723 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 13516

[startup+1.33562 s]
/proc/loadavg: 1.56 1.89 1.90 2/78 9483
/proc/meminfo: memFree=1786008/2055920 swapFree=4192812/4192956
[pid=9482] ppid=9480 vsize=33456 CPUtime=1.32
/proc/9482/stat : 9482 (solver) R 9480 9482 7611 0 -1 4194304 7477 0 0 0 130 2 0 0 25 0 1 0 170674655 34258944 7404 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134604325 0 0 4096 0 0 0 0 17 1 0 0
/proc/9482/statm: 8364 7404 713 92 0 6708 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 33456

[startup+2.9718 s]
/proc/loadavg: 1.56 1.89 1.90 2/78 9483
/proc/meminfo: memFree=1782488/2055920 swapFree=4192812/4192956
[pid=9482] ppid=9480 vsize=38656 CPUtime=2.96
/proc/9482/stat : 9482 (solver) R 9480 9482 7611 0 -1 4194304 8780 0 0 0 293 3 0 0 25 0 1 0 170674655 39583744 8707 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 3040891 0 0 4096 0 0 0 0 17 1 0 0
/proc/9482/statm: 9664 8707 713 92 0 8008 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 38656



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+5.12203 s]
/proc/loadavg: 1.56 1.89 1.90 1/78 9483
/proc/meminfo: memFree=1273896/2055920 swapFree=4192812/4192956
[pid=9482] ppid=9480 vsize=972708 CPUtime=5.1
/proc/9482/stat : 9482 (solver) R 9480 9482 7611 0 -1 4194304 134903 0 1 0 457 53 0 0 25 0 1 0 170674655 996052992 134797 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4155803373 0 0 4096 0 0 0 0 17 1 0 0
/proc/9482/statm: 243177 134797 732 92 0 241521 0
Current children cumulated CPU time (s) 5.1
Current children cumulated vsize (KiB) 972708

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 5.22031
CPU time (s): 5.20121
CPU user time (s): 4.5753
CPU system time (s): 0.625904
CPU usage (%): 99.634
Max. virtual memory (cumulated for all children) (KiB): 972708

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.5753
system time used= 0.625904
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 134903
page faults= 2
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 15
involuntary context switches= 30

runsolver used 0.008998 s user time and 0.018997 s system time

The end

Launcher Data (download as text)

Begin job on node24 on Mon Jan  8 02:19:54 UTC 2007


IDJOB= 212682
IDBENCH= 4789
FILE ID= node24/212682-1168222793

PBS_JOBID= 3480905

Free space on /tmp= 66469 MiB

BENCH NAME= HOME/pub/bench/CPAI06/pseudoSeries/mpsReduced/mps-red-usAbbrv-8-25-70.xml
COMMAND LINE= /tmp/evaluation/212682-1168222793/mistral/bin/solver /tmp/evaluation/212682-1168222793/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-212682-1168222793 -o ROOT/results/node24/solver-212682-1168222793 -C 1800 -M 900  /tmp/evaluation/212682-1168222793/mistral/bin/solver /tmp/evaluation/212682-1168222793/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  d3bed14d6a2e2060ab5feab2600cd7e6

RANDOM SEED= 365774326

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.234
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		: 3000.234
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:       1812728 kB
Buffers:         38192 kB
Cached:          98964 kB
SwapCached:          0 kB
Active:         129756 kB
Inactive:        60108 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1812728 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6912 kB
Writeback:           0 kB
Mapped:          71700 kB
Slab:            38620 kB
Committed_AS:  3482124 kB
PageTables:       1984 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= 66469 MiB



End job on node24 on Mon Jan  8 02:19:59 UTC 2007